git.sesse.net Git - ffmpeg/blob - ffplay.c

   1 /*
   2  * FFplay : Simple Media Player based on the FFmpeg libraries
   3  * Copyright (c) 2003 Fabrice Bellard
   4  *
   5  * This file is part of FFmpeg.
   6  *
   7  * FFmpeg is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * FFmpeg is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with FFmpeg; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #define _XOPEN_SOURCE 600
  23
  24 #include "config.h"
  25 #include <inttypes.h>
  26 #include <math.h>
  27 #include <limits.h>
  28 #include "libavutil/avstring.h"
  29 #include "libavutil/colorspace.h"
  30 #include "libavutil/pixdesc.h"
  31 #include "libavcore/imgutils.h"
  32 #include "libavcore/parseutils.h"
  33 #include "libavformat/avformat.h"
  34 #include "libavdevice/avdevice.h"
  35 #include "libswscale/swscale.h"
  36 #include "libavcodec/audioconvert.h"
  37 #include "libavcodec/opt.h"
  38 #include "libavcodec/avfft.h"
  39
  40 #if CONFIG_AVFILTER
  41 # include "libavfilter/avfilter.h"
  42 # include "libavfilter/avfiltergraph.h"
  43 # include "libavfilter/graphparser.h"
  44 #endif
  45
  46 #include "cmdutils.h"
  47
  48 #include <SDL.h>
  49 #include <SDL_thread.h>
  50
  51 #ifdef __MINGW32__
  52 #undef main /* We don't want SDL to override our main() */
  53 #endif
  54
  55 #include <unistd.h>
  56 #include <assert.h>
  57
  58 const char program_name[] = "FFplay";
  59 const int program_birth_year = 2003;
  60
  61 //#define DEBUG_SYNC
  62
  63 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
  64 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
  65 #define MIN_FRAMES 5
  66
  67 /* SDL audio buffer size, in samples. Should be small to have precise
  68    A/V sync as SDL does not have hardware buffer fullness info. */
  69 #define SDL_AUDIO_BUFFER_SIZE 1024
  70
  71 /* no AV sync correction is done if below the AV sync threshold */
  72 #define AV_SYNC_THRESHOLD 0.01
  73 /* no AV correction is done if too big error */
  74 #define AV_NOSYNC_THRESHOLD 10.0
  75
  76 #define FRAME_SKIP_FACTOR 0.05
  77
  78 /* maximum audio speed change to get correct sync */
  79 #define SAMPLE_CORRECTION_PERCENT_MAX 10
  80
  81 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
  82 #define AUDIO_DIFF_AVG_NB   20
  83
  84 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
  85 #define SAMPLE_ARRAY_SIZE (2*65536)
  86
  87 static int sws_flags = SWS_BICUBIC;
  88
  89 typedef struct PacketQueue {
  90     AVPacketList *first_pkt, *last_pkt;
  91     int nb_packets;
  92     int size;
  93     int abort_request;
  94     SDL_mutex *mutex;
  95     SDL_cond *cond;
  96 } PacketQueue;
  97
  98 #define VIDEO_PICTURE_QUEUE_SIZE 2
  99 #define SUBPICTURE_QUEUE_SIZE 4
 100
 101 typedef struct VideoPicture {
 102     double pts;                                  ///<presentation time stamp for this picture
 103     double target_clock;                         ///<av_gettime() time at which this should be displayed ideally
 104     int64_t pos;                                 ///<byte position in file
 105     SDL_Overlay *bmp;
 106     int width, height; /* source height & width */
 107     int allocated;
 108     enum PixelFormat pix_fmt;
 109
 110 #if CONFIG_AVFILTER
 111     AVFilterBufferRef *picref;
 112 #endif
 113 } VideoPicture;
 114
 115 typedef struct SubPicture {
 116     double pts; /* presentation time stamp for this picture */
 117     AVSubtitle sub;
 118 } SubPicture;
 119
 120 enum {
 121     AV_SYNC_AUDIO_MASTER, /* default choice */
 122     AV_SYNC_VIDEO_MASTER,
 123     AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
 124 };
 125
 126 typedef struct VideoState {
 127     SDL_Thread *parse_tid;
 128     SDL_Thread *video_tid;
 129     SDL_Thread *refresh_tid;
 130     AVInputFormat *iformat;
 131     int no_background;
 132     int abort_request;
 133     int paused;
 134     int last_paused;
 135     int seek_req;
 136     int seek_flags;
 137     int64_t seek_pos;
 138     int64_t seek_rel;
 139     int read_pause_return;
 140     AVFormatContext *ic;
 141     int dtg_active_format;
 142
 143     int audio_stream;
 144
 145     int av_sync_type;
 146     double external_clock; /* external clock base */
 147     int64_t external_clock_time;
 148
 149     double audio_clock;
 150     double audio_diff_cum; /* used for AV difference average computation */
 151     double audio_diff_avg_coef;
 152     double audio_diff_threshold;
 153     int audio_diff_avg_count;
 154     AVStream *audio_st;
 155     PacketQueue audioq;
 156     int audio_hw_buf_size;
 157     /* samples output by the codec. we reserve more space for avsync
 158        compensation */
 159     DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
 160     DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
 161     uint8_t *audio_buf;
 162     unsigned int audio_buf_size; /* in bytes */
 163     int audio_buf_index; /* in bytes */
 164     AVPacket audio_pkt_temp;
 165     AVPacket audio_pkt;
 166     enum SampleFormat audio_src_fmt;
 167     AVAudioConvert *reformat_ctx;
 168
 169     int show_audio; /* if true, display audio samples */
 170     int16_t sample_array[SAMPLE_ARRAY_SIZE];
 171     int sample_array_index;
 172     int last_i_start;
 173     RDFTContext *rdft;
 174     int rdft_bits;
 175     FFTSample *rdft_data;
 176     int xpos;
 177
 178     SDL_Thread *subtitle_tid;
 179     int subtitle_stream;
 180     int subtitle_stream_changed;
 181     AVStream *subtitle_st;
 182     PacketQueue subtitleq;
 183     SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
 184     int subpq_size, subpq_rindex, subpq_windex;
 185     SDL_mutex *subpq_mutex;
 186     SDL_cond *subpq_cond;
 187
 188     double frame_timer;
 189     double frame_last_pts;
 190     double frame_last_delay;
 191     double video_clock;                          ///<pts of last decoded frame / predicted pts of next decoded frame
 192     int video_stream;
 193     AVStream *video_st;
 194     PacketQueue videoq;
 195     double video_current_pts;                    ///<current displayed pts (different from video_clock if frame fifos are used)
 196     double video_current_pts_drift;              ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
 197     int64_t video_current_pos;                   ///<current displayed file pos
 198     VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
 199     int pictq_size, pictq_rindex, pictq_windex;
 200     SDL_mutex *pictq_mutex;
 201     SDL_cond *pictq_cond;
 202 #if !CONFIG_AVFILTER
 203     struct SwsContext *img_convert_ctx;
 204 #endif
 205
 206     //    QETimer *video_timer;
 207     char filename[1024];
 208     int width, height, xleft, ytop;
 209
 210     PtsCorrectionContext pts_ctx;
 211
 212 #if CONFIG_AVFILTER
 213     AVFilterContext *out_video_filter;          ///<the last filter in the video chain
 214 #endif
 215
 216     float skip_frames;
 217     float skip_frames_index;
 218     int refresh;
 219 } VideoState;
 220
 221 static void show_help(void);
 222 static int audio_write_get_buf_size(VideoState *is);
 223
 224 /* options specified by the user */
 225 static AVInputFormat *file_iformat;
 226 static const char *input_filename;
 227 static const char *window_title;
 228 static int fs_screen_width;
 229 static int fs_screen_height;
 230 static int screen_width = 0;
 231 static int screen_height = 0;
 232 static int frame_width = 0;
 233 static int frame_height = 0;
 234 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
 235 static int audio_disable;
 236 static int video_disable;
 237 static int wanted_stream[AVMEDIA_TYPE_NB]={
 238     [AVMEDIA_TYPE_AUDIO]=-1,
 239     [AVMEDIA_TYPE_VIDEO]=-1,
 240     [AVMEDIA_TYPE_SUBTITLE]=-1,
 241 };
 242 static int seek_by_bytes=-1;
 243 static int display_disable;
 244 static int show_status = 1;
 245 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
 246 static int64_t start_time = AV_NOPTS_VALUE;
 247 static int64_t duration = AV_NOPTS_VALUE;
 248 static int debug = 0;
 249 static int debug_mv = 0;
 250 static int step = 0;
 251 static int thread_count = 1;
 252 static int workaround_bugs = 1;
 253 static int fast = 0;
 254 static int genpts = 0;
 255 static int lowres = 0;
 256 static int idct = FF_IDCT_AUTO;
 257 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
 258 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
 259 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
 260 static int error_recognition = FF_ER_CAREFUL;
 261 static int error_concealment = 3;
 262 static int decoder_reorder_pts= -1;
 263 static int autoexit;
 264 static int exit_on_keydown;
 265 static int exit_on_mousedown;
 266 static int loop=1;
 267 static int framedrop=1;
 268
 269 static int rdftspeed=20;
 270 #if CONFIG_AVFILTER
 271 static char *vfilters = NULL;
 272 #endif
 273
 274 /* current context */
 275 static int is_full_screen;
 276 static VideoState *cur_stream;
 277 static int64_t audio_callback_time;
 278
 279 static AVPacket flush_pkt;
 280
 281 #define FF_ALLOC_EVENT   (SDL_USEREVENT)
 282 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
 283 #define FF_QUIT_EVENT    (SDL_USEREVENT + 2)
 284
 285 static SDL_Surface *screen;
 286
 287 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
 288
 289 /* packet queue handling */
 290 static void packet_queue_init(PacketQueue *q)
 291 {
 292     memset(q, 0, sizeof(PacketQueue));
 293     q->mutex = SDL_CreateMutex();
 294     q->cond = SDL_CreateCond();
 295     packet_queue_put(q, &flush_pkt);
 296 }
 297
 298 static void packet_queue_flush(PacketQueue *q)
 299 {
 300     AVPacketList *pkt, *pkt1;
 301
 302     SDL_LockMutex(q->mutex);
 303     for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
 304         pkt1 = pkt->next;
 305         av_free_packet(&pkt->pkt);
 306         av_freep(&pkt);
 307     }
 308     q->last_pkt = NULL;
 309     q->first_pkt = NULL;
 310     q->nb_packets = 0;
 311     q->size = 0;
 312     SDL_UnlockMutex(q->mutex);
 313 }
 314
 315 static void packet_queue_end(PacketQueue *q)
 316 {
 317     packet_queue_flush(q);
 318     SDL_DestroyMutex(q->mutex);
 319     SDL_DestroyCond(q->cond);
 320 }
 321
 322 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
 323 {
 324     AVPacketList *pkt1;
 325
 326     /* duplicate the packet */
 327     if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
 328         return -1;
 329
 330     pkt1 = av_malloc(sizeof(AVPacketList));
 331     if (!pkt1)
 332         return -1;
 333     pkt1->pkt = *pkt;
 334     pkt1->next = NULL;
 335
 336
 337     SDL_LockMutex(q->mutex);
 338
 339     if (!q->last_pkt)
 340
 341         q->first_pkt = pkt1;
 342     else
 343         q->last_pkt->next = pkt1;
 344     q->last_pkt = pkt1;
 345     q->nb_packets++;
 346     q->size += pkt1->pkt.size + sizeof(*pkt1);
 347     /* XXX: should duplicate packet data in DV case */
 348     SDL_CondSignal(q->cond);
 349
 350     SDL_UnlockMutex(q->mutex);
 351     return 0;
 352 }
 353
 354 static void packet_queue_abort(PacketQueue *q)
 355 {
 356     SDL_LockMutex(q->mutex);
 357
 358     q->abort_request = 1;
 359
 360     SDL_CondSignal(q->cond);
 361
 362     SDL_UnlockMutex(q->mutex);
 363 }
 364
 365 /* return < 0 if aborted, 0 if no packet and > 0 if packet.  */
 366 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
 367 {
 368     AVPacketList *pkt1;
 369     int ret;
 370
 371     SDL_LockMutex(q->mutex);
 372
 373     for(;;) {
 374         if (q->abort_request) {
 375             ret = -1;
 376             break;
 377         }
 378
 379         pkt1 = q->first_pkt;
 380         if (pkt1) {
 381             q->first_pkt = pkt1->next;
 382             if (!q->first_pkt)
 383                 q->last_pkt = NULL;
 384             q->nb_packets--;
 385             q->size -= pkt1->pkt.size + sizeof(*pkt1);
 386             *pkt = pkt1->pkt;
 387             av_free(pkt1);
 388             ret = 1;
 389             break;
 390         } else if (!block) {
 391             ret = 0;
 392             break;
 393         } else {
 394             SDL_CondWait(q->cond, q->mutex);
 395         }
 396     }
 397     SDL_UnlockMutex(q->mutex);
 398     return ret;
 399 }
 400
 401 static inline void fill_rectangle(SDL_Surface *screen,
 402                                   int x, int y, int w, int h, int color)
 403 {
 404     SDL_Rect rect;
 405     rect.x = x;
 406     rect.y = y;
 407     rect.w = w;
 408     rect.h = h;
 409     SDL_FillRect(screen, &rect, color);
 410 }
 411
 412 #if 0
 413 /* draw only the border of a rectangle */
 414 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
 415 {
 416     int w1, w2, h1, h2;
 417
 418     /* fill the background */
 419     w1 = x;
 420     if (w1 < 0)
 421         w1 = 0;
 422     w2 = s->width - (x + w);
 423     if (w2 < 0)
 424         w2 = 0;
 425     h1 = y;
 426     if (h1 < 0)
 427         h1 = 0;
 428     h2 = s->height - (y + h);
 429     if (h2 < 0)
 430         h2 = 0;
 431     fill_rectangle(screen,
 432                    s->xleft, s->ytop,
 433                    w1, s->height,
 434                    color);
 435     fill_rectangle(screen,
 436                    s->xleft + s->width - w2, s->ytop,
 437                    w2, s->height,
 438                    color);
 439     fill_rectangle(screen,
 440                    s->xleft + w1, s->ytop,
 441                    s->width - w1 - w2, h1,
 442                    color);
 443     fill_rectangle(screen,
 444                    s->xleft + w1, s->ytop + s->height - h2,
 445                    s->width - w1 - w2, h2,
 446                    color);
 447 }
 448 #endif
 449
 450 #define ALPHA_BLEND(a, oldp, newp, s)\
 451 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
 452
 453 #define RGBA_IN(r, g, b, a, s)\
 454 {\
 455     unsigned int v = ((const uint32_t *)(s))[0];\
 456     a = (v >> 24) & 0xff;\
 457     r = (v >> 16) & 0xff;\
 458     g = (v >> 8) & 0xff;\
 459     b = v & 0xff;\
 460 }
 461
 462 #define YUVA_IN(y, u, v, a, s, pal)\
 463 {\
 464     unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
 465     a = (val >> 24) & 0xff;\
 466     y = (val >> 16) & 0xff;\
 467     u = (val >> 8) & 0xff;\
 468     v = val & 0xff;\
 469 }
 470
 471 #define YUVA_OUT(d, y, u, v, a)\
 472 {\
 473     ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
 474 }
 475
 476
 477 #define BPP 1
 478
 479 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
 480 {
 481     int wrap, wrap3, width2, skip2;
 482     int y, u, v, a, u1, v1, a1, w, h;
 483     uint8_t *lum, *cb, *cr;
 484     const uint8_t *p;
 485     const uint32_t *pal;
 486     int dstx, dsty, dstw, dsth;
 487
 488     dstw = av_clip(rect->w, 0, imgw);
 489     dsth = av_clip(rect->h, 0, imgh);
 490     dstx = av_clip(rect->x, 0, imgw - dstw);
 491     dsty = av_clip(rect->y, 0, imgh - dsth);
 492     lum = dst->data[0] + dsty * dst->linesize[0];
 493     cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
 494     cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
 495
 496     width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
 497     skip2 = dstx >> 1;
 498     wrap = dst->linesize[0];
 499     wrap3 = rect->pict.linesize[0];
 500     p = rect->pict.data[0];
 501     pal = (const uint32_t *)rect->pict.data[1];  /* Now in YCrCb! */
 502
 503     if (dsty & 1) {
 504         lum += dstx;
 505         cb += skip2;
 506         cr += skip2;
 507
 508         if (dstx & 1) {
 509             YUVA_IN(y, u, v, a, p, pal);
 510             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 511             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
 512             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
 513             cb++;
 514             cr++;
 515             lum++;
 516             p += BPP;
 517         }
 518         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
 519             YUVA_IN(y, u, v, a, p, pal);
 520             u1 = u;
 521             v1 = v;
 522             a1 = a;
 523             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 524
 525             YUVA_IN(y, u, v, a, p + BPP, pal);
 526             u1 += u;
 527             v1 += v;
 528             a1 += a;
 529             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
 530             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
 531             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
 532             cb++;
 533             cr++;
 534             p += 2 * BPP;
 535             lum += 2;
 536         }
 537         if (w) {
 538             YUVA_IN(y, u, v, a, p, pal);
 539             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 540             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
 541             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
 542             p++;
 543             lum++;
 544         }
 545         p += wrap3 - dstw * BPP;
 546         lum += wrap - dstw - dstx;
 547         cb += dst->linesize[1] - width2 - skip2;
 548         cr += dst->linesize[2] - width2 - skip2;
 549     }
 550     for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
 551         lum += dstx;
 552         cb += skip2;
 553         cr += skip2;
 554
 555         if (dstx & 1) {
 556             YUVA_IN(y, u, v, a, p, pal);
 557             u1 = u;
 558             v1 = v;
 559             a1 = a;
 560             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 561             p += wrap3;
 562             lum += wrap;
 563             YUVA_IN(y, u, v, a, p, pal);
 564             u1 += u;
 565             v1 += v;
 566             a1 += a;
 567             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 568             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
 569             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
 570             cb++;
 571             cr++;
 572             p += -wrap3 + BPP;
 573             lum += -wrap + 1;
 574         }
 575         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
 576             YUVA_IN(y, u, v, a, p, pal);
 577             u1 = u;
 578             v1 = v;
 579             a1 = a;
 580             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 581
 582             YUVA_IN(y, u, v, a, p + BPP, pal);
 583             u1 += u;
 584             v1 += v;
 585             a1 += a;
 586             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
 587             p += wrap3;
 588             lum += wrap;
 589
 590             YUVA_IN(y, u, v, a, p, pal);
 591             u1 += u;
 592             v1 += v;
 593             a1 += a;
 594             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 595
 596             YUVA_IN(y, u, v, a, p + BPP, pal);
 597             u1 += u;
 598             v1 += v;
 599             a1 += a;
 600             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
 601
 602             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
 603             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
 604
 605             cb++;
 606             cr++;
 607             p += -wrap3 + 2 * BPP;
 608             lum += -wrap + 2;
 609         }
 610         if (w) {
 611             YUVA_IN(y, u, v, a, p, pal);
 612             u1 = u;
 613             v1 = v;
 614             a1 = a;
 615             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 616             p += wrap3;
 617             lum += wrap;
 618             YUVA_IN(y, u, v, a, p, pal);
 619             u1 += u;
 620             v1 += v;
 621             a1 += a;
 622             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 623             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
 624             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
 625             cb++;
 626             cr++;
 627             p += -wrap3 + BPP;
 628             lum += -wrap + 1;
 629         }
 630         p += wrap3 + (wrap3 - dstw * BPP);
 631         lum += wrap + (wrap - dstw - dstx);
 632         cb += dst->linesize[1] - width2 - skip2;
 633         cr += dst->linesize[2] - width2 - skip2;
 634     }
 635     /* handle odd height */
 636     if (h) {
 637         lum += dstx;
 638         cb += skip2;
 639         cr += skip2;
 640
 641         if (dstx & 1) {
 642             YUVA_IN(y, u, v, a, p, pal);
 643             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 644             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
 645             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
 646             cb++;
 647             cr++;
 648             lum++;
 649             p += BPP;
 650         }
 651         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
 652             YUVA_IN(y, u, v, a, p, pal);
 653             u1 = u;
 654             v1 = v;
 655             a1 = a;
 656             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 657
 658             YUVA_IN(y, u, v, a, p + BPP, pal);
 659             u1 += u;
 660             v1 += v;
 661             a1 += a;
 662             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
 663             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
 664             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
 665             cb++;
 666             cr++;
 667             p += 2 * BPP;
 668             lum += 2;
 669         }
 670         if (w) {
 671             YUVA_IN(y, u, v, a, p, pal);
 672             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 673             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
 674             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
 675         }
 676     }
 677 }
 678
 679 static void free_subpicture(SubPicture *sp)
 680 {
 681     avsubtitle_free(&sp->sub);
 682 }
 683
 684 static void video_image_display(VideoState *is)
 685 {
 686     VideoPicture *vp;
 687     SubPicture *sp;
 688     AVPicture pict;
 689     float aspect_ratio;
 690     int width, height, x, y;
 691     SDL_Rect rect;
 692     int i;
 693
 694     vp = &is->pictq[is->pictq_rindex];
 695     if (vp->bmp) {
 696 #if CONFIG_AVFILTER
 697          if (vp->picref->video->pixel_aspect.num == 0)
 698              aspect_ratio = 0;
 699          else
 700              aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
 701 #else
 702
 703         /* XXX: use variable in the frame */
 704         if (is->video_st->sample_aspect_ratio.num)
 705             aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
 706         else if (is->video_st->codec->sample_aspect_ratio.num)
 707             aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
 708         else
 709             aspect_ratio = 0;
 710 #endif
 711         if (aspect_ratio <= 0.0)
 712             aspect_ratio = 1.0;
 713         aspect_ratio *= (float)vp->width / (float)vp->height;
 714         /* if an active format is indicated, then it overrides the
 715            mpeg format */
 716 #if 0
 717         if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
 718             is->dtg_active_format = is->video_st->codec->dtg_active_format;
 719             printf("dtg_active_format=%d\n", is->dtg_active_format);
 720         }
 721 #endif
 722 #if 0
 723         switch(is->video_st->codec->dtg_active_format) {
 724         case FF_DTG_AFD_SAME:
 725         default:
 726             /* nothing to do */
 727             break;
 728         case FF_DTG_AFD_4_3:
 729             aspect_ratio = 4.0 / 3.0;
 730             break;
 731         case FF_DTG_AFD_16_9:
 732             aspect_ratio = 16.0 / 9.0;
 733             break;
 734         case FF_DTG_AFD_14_9:
 735             aspect_ratio = 14.0 / 9.0;
 736             break;
 737         case FF_DTG_AFD_4_3_SP_14_9:
 738             aspect_ratio = 14.0 / 9.0;
 739             break;
 740         case FF_DTG_AFD_16_9_SP_14_9:
 741             aspect_ratio = 14.0 / 9.0;
 742             break;
 743         case FF_DTG_AFD_SP_4_3:
 744             aspect_ratio = 4.0 / 3.0;
 745             break;
 746         }
 747 #endif
 748
 749         if (is->subtitle_st)
 750         {
 751             if (is->subpq_size > 0)
 752             {
 753                 sp = &is->subpq[is->subpq_rindex];
 754
 755                 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
 756                 {
 757                     SDL_LockYUVOverlay (vp->bmp);
 758
 759                     pict.data[0] = vp->bmp->pixels[0];
 760                     pict.data[1] = vp->bmp->pixels[2];
 761                     pict.data[2] = vp->bmp->pixels[1];
 762
 763                     pict.linesize[0] = vp->bmp->pitches[0];
 764                     pict.linesize[1] = vp->bmp->pitches[2];
 765                     pict.linesize[2] = vp->bmp->pitches[1];
 766
 767                     for (i = 0; i < sp->sub.num_rects; i++)
 768                         blend_subrect(&pict, sp->sub.rects[i],
 769                                       vp->bmp->w, vp->bmp->h);
 770
 771                     SDL_UnlockYUVOverlay (vp->bmp);
 772                 }
 773             }
 774         }
 775
 776
 777         /* XXX: we suppose the screen has a 1.0 pixel ratio */
 778         height = is->height;
 779         width = ((int)rint(height * aspect_ratio)) & ~1;
 780         if (width > is->width) {
 781             width = is->width;
 782             height = ((int)rint(width / aspect_ratio)) & ~1;
 783         }
 784         x = (is->width - width) / 2;
 785         y = (is->height - height) / 2;
 786         if (!is->no_background) {
 787             /* fill the background */
 788             //            fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
 789         } else {
 790             is->no_background = 0;
 791         }
 792         rect.x = is->xleft + x;
 793         rect.y = is->ytop  + y;
 794         rect.w = width;
 795         rect.h = height;
 796         SDL_DisplayYUVOverlay(vp->bmp, &rect);
 797     } else {
 798 #if 0
 799         fill_rectangle(screen,
 800                        is->xleft, is->ytop, is->width, is->height,
 801                        QERGB(0x00, 0x00, 0x00));
 802 #endif
 803     }
 804 }
 805
 806 static inline int compute_mod(int a, int b)
 807 {
 808     a = a % b;
 809     if (a >= 0)
 810         return a;
 811     else
 812         return a + b;
 813 }
 814
 815 static void video_audio_display(VideoState *s)
 816 {
 817     int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
 818     int ch, channels, h, h2, bgcolor, fgcolor;
 819     int16_t time_diff;
 820     int rdft_bits, nb_freq;
 821
 822     for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
 823         ;
 824     nb_freq= 1<<(rdft_bits-1);
 825
 826     /* compute display index : center on currently output samples */
 827     channels = s->audio_st->codec->channels;
 828     nb_display_channels = channels;
 829     if (!s->paused) {
 830         int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
 831         n = 2 * channels;
 832         delay = audio_write_get_buf_size(s);
 833         delay /= n;
 834
 835         /* to be more precise, we take into account the time spent since
 836            the last buffer computation */
 837         if (audio_callback_time) {
 838             time_diff = av_gettime() - audio_callback_time;
 839             delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
 840         }
 841
 842         delay += 2*data_used;
 843         if (delay < data_used)
 844             delay = data_used;
 845
 846         i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
 847         if(s->show_audio==1){
 848             h= INT_MIN;
 849             for(i=0; i<1000; i+=channels){
 850                 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
 851                 int a= s->sample_array[idx];
 852                 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
 853                 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
 854                 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
 855                 int score= a-d;
 856                 if(h<score && (b^c)<0){
 857                     h= score;
 858                     i_start= idx;
 859                 }
 860             }
 861         }
 862
 863         s->last_i_start = i_start;
 864     } else {
 865         i_start = s->last_i_start;
 866     }
 867
 868     bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
 869     if(s->show_audio==1){
 870         fill_rectangle(screen,
 871                        s->xleft, s->ytop, s->width, s->height,
 872                        bgcolor);
 873
 874         fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
 875
 876         /* total height for one channel */
 877         h = s->height / nb_display_channels;
 878         /* graph height / 2 */
 879         h2 = (h * 9) / 20;
 880         for(ch = 0;ch < nb_display_channels; ch++) {
 881             i = i_start + ch;
 882             y1 = s->ytop + ch * h + (h / 2); /* position of center line */
 883             for(x = 0; x < s->width; x++) {
 884                 y = (s->sample_array[i] * h2) >> 15;
 885                 if (y < 0) {
 886                     y = -y;
 887                     ys = y1 - y;
 888                 } else {
 889                     ys = y1;
 890                 }
 891                 fill_rectangle(screen,
 892                                s->xleft + x, ys, 1, y,
 893                                fgcolor);
 894                 i += channels;
 895                 if (i >= SAMPLE_ARRAY_SIZE)
 896                     i -= SAMPLE_ARRAY_SIZE;
 897             }
 898         }
 899
 900         fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
 901
 902         for(ch = 1;ch < nb_display_channels; ch++) {
 903             y = s->ytop + ch * h;
 904             fill_rectangle(screen,
 905                            s->xleft, y, s->width, 1,
 906                            fgcolor);
 907         }
 908         SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
 909     }else{
 910         nb_display_channels= FFMIN(nb_display_channels, 2);
 911         if(rdft_bits != s->rdft_bits){
 912             av_rdft_end(s->rdft);
 913             av_free(s->rdft_data);
 914             s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
 915             s->rdft_bits= rdft_bits;
 916             s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
 917         }
 918         {
 919             FFTSample *data[2];
 920             for(ch = 0;ch < nb_display_channels; ch++) {
 921                 data[ch] = s->rdft_data + 2*nb_freq*ch;
 922                 i = i_start + ch;
 923                 for(x = 0; x < 2*nb_freq; x++) {
 924                     double w= (x-nb_freq)*(1.0/nb_freq);
 925                     data[ch][x]= s->sample_array[i]*(1.0-w*w);
 926                     i += channels;
 927                     if (i >= SAMPLE_ARRAY_SIZE)
 928                         i -= SAMPLE_ARRAY_SIZE;
 929                 }
 930                 av_rdft_calc(s->rdft, data[ch]);
 931             }
 932             //least efficient way to do this, we should of course directly access it but its more than fast enough
 933             for(y=0; y<s->height; y++){
 934                 double w= 1/sqrt(nb_freq);
 935                 int a= sqrt(w*sqrt(data[0][2*y+0]*data[0][2*y+0] + data[0][2*y+1]*data[0][2*y+1]));
 936                 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
 937                        + data[1][2*y+1]*data[1][2*y+1])) : a;
 938                 a= FFMIN(a,255);
 939                 b= FFMIN(b,255);
 940                 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
 941
 942                 fill_rectangle(screen,
 943                             s->xpos, s->height-y, 1, 1,
 944                             fgcolor);
 945             }
 946         }
 947         SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
 948         s->xpos++;
 949         if(s->xpos >= s->width)
 950             s->xpos= s->xleft;
 951     }
 952 }
 953
 954 static int video_open(VideoState *is){
 955     int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
 956     int w,h;
 957
 958     if(is_full_screen) flags |= SDL_FULLSCREEN;
 959     else               flags |= SDL_RESIZABLE;
 960
 961     if (is_full_screen && fs_screen_width) {
 962         w = fs_screen_width;
 963         h = fs_screen_height;
 964     } else if(!is_full_screen && screen_width){
 965         w = screen_width;
 966         h = screen_height;
 967 #if CONFIG_AVFILTER
 968     }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
 969         w = is->out_video_filter->inputs[0]->w;
 970         h = is->out_video_filter->inputs[0]->h;
 971 #else
 972     }else if (is->video_st && is->video_st->codec->width){
 973         w = is->video_st->codec->width;
 974         h = is->video_st->codec->height;
 975 #endif
 976     } else {
 977         w = 640;
 978         h = 480;
 979     }
 980     if(screen && is->width == screen->w && screen->w == w
 981        && is->height== screen->h && screen->h == h)
 982         return 0;
 983
 984 #ifndef __APPLE__
 985     screen = SDL_SetVideoMode(w, h, 0, flags);
 986 #else
 987     /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
 988     screen = SDL_SetVideoMode(w, h, 24, flags);
 989 #endif
 990     if (!screen) {
 991         fprintf(stderr, "SDL: could not set video mode - exiting\n");
 992         return -1;
 993     }
 994     if (!window_title)
 995         window_title = input_filename;
 996     SDL_WM_SetCaption(window_title, window_title);
 997
 998     is->width = screen->w;
 999     is->height = screen->h;
1000
1001     return 0;
1002 }
1003
1004 /* display the current picture, if any */
1005 static void video_display(VideoState *is)
1006 {
1007     if(!screen)
1008         video_open(cur_stream);
1009     if (is->audio_st && is->show_audio)
1010         video_audio_display(is);
1011     else if (is->video_st)
1012         video_image_display(is);
1013 }
1014
1015 static int refresh_thread(void *opaque)
1016 {
1017     VideoState *is= opaque;
1018     while(!is->abort_request){
1019     SDL_Event event;
1020     event.type = FF_REFRESH_EVENT;
1021     event.user.data1 = opaque;
1022         if(!is->refresh){
1023             is->refresh=1;
1024     SDL_PushEvent(&event);
1025         }
1026         usleep(is->audio_st && is->show_audio ? rdftspeed*1000 : 5000); //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
1027     }
1028     return 0;
1029 }
1030
1031 /* get the current audio clock value */
1032 static double get_audio_clock(VideoState *is)
1033 {
1034     double pts;
1035     int hw_buf_size, bytes_per_sec;
1036     pts = is->audio_clock;
1037     hw_buf_size = audio_write_get_buf_size(is);
1038     bytes_per_sec = 0;
1039     if (is->audio_st) {
1040         bytes_per_sec = is->audio_st->codec->sample_rate *
1041             2 * is->audio_st->codec->channels;
1042     }
1043     if (bytes_per_sec)
1044         pts -= (double)hw_buf_size / bytes_per_sec;
1045     return pts;
1046 }
1047
1048 /* get the current video clock value */
1049 static double get_video_clock(VideoState *is)
1050 {
1051     if (is->paused) {
1052         return is->video_current_pts;
1053     } else {
1054         return is->video_current_pts_drift + av_gettime() / 1000000.0;
1055     }
1056 }
1057
1058 /* get the current external clock value */
1059 static double get_external_clock(VideoState *is)
1060 {
1061     int64_t ti;
1062     ti = av_gettime();
1063     return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1064 }
1065
1066 /* get the current master clock value */
1067 static double get_master_clock(VideoState *is)
1068 {
1069     double val;
1070
1071     if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1072         if (is->video_st)
1073             val = get_video_clock(is);
1074         else
1075             val = get_audio_clock(is);
1076     } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1077         if (is->audio_st)
1078             val = get_audio_clock(is);
1079         else
1080             val = get_video_clock(is);
1081     } else {
1082         val = get_external_clock(is);
1083     }
1084     return val;
1085 }
1086
1087 /* seek in the stream */
1088 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1089 {
1090     if (!is->seek_req) {
1091         is->seek_pos = pos;
1092         is->seek_rel = rel;
1093         is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1094         if (seek_by_bytes)
1095             is->seek_flags |= AVSEEK_FLAG_BYTE;
1096         is->seek_req = 1;
1097     }
1098 }
1099
1100 /* pause or resume the video */
1101 static void stream_pause(VideoState *is)
1102 {
1103     if (is->paused) {
1104         is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1105         if(is->read_pause_return != AVERROR(ENOSYS)){
1106             is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1107         }
1108         is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1109     }
1110     is->paused = !is->paused;
1111 }
1112
1113 static double compute_target_time(double frame_current_pts, VideoState *is)
1114 {
1115     double delay, sync_threshold, diff;
1116
1117     /* compute nominal delay */
1118     delay = frame_current_pts - is->frame_last_pts;
1119     if (delay <= 0 || delay >= 10.0) {
1120         /* if incorrect delay, use previous one */
1121         delay = is->frame_last_delay;
1122     } else {
1123         is->frame_last_delay = delay;
1124     }
1125     is->frame_last_pts = frame_current_pts;
1126
1127     /* update delay to follow master synchronisation source */
1128     if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1129          is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1130         /* if video is slave, we try to correct big delays by
1131            duplicating or deleting a frame */
1132         diff = get_video_clock(is) - get_master_clock(is);
1133
1134         /* skip or repeat frame. We take into account the
1135            delay to compute the threshold. I still don't know
1136            if it is the best guess */
1137         sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1138         if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1139             if (diff <= -sync_threshold)
1140                 delay = 0;
1141             else if (diff >= sync_threshold)
1142                 delay = 2 * delay;
1143         }
1144     }
1145     is->frame_timer += delay;
1146 #if defined(DEBUG_SYNC)
1147     printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1148             delay, actual_delay, frame_current_pts, -diff);
1149 #endif
1150
1151     return is->frame_timer;
1152 }
1153
1154 /* called to display each frame */
1155 static void video_refresh_timer(void *opaque)
1156 {
1157     VideoState *is = opaque;
1158     VideoPicture *vp;
1159
1160     SubPicture *sp, *sp2;
1161
1162     if (is->video_st) {
1163 retry:
1164         if (is->pictq_size == 0) {
1165             //nothing to do, no picture to display in the que
1166         } else {
1167             double time= av_gettime()/1000000.0;
1168             double next_target;
1169             /* dequeue the picture */
1170             vp = &is->pictq[is->pictq_rindex];
1171
1172             if(time < vp->target_clock)
1173                 return;
1174             /* update current video pts */
1175             is->video_current_pts = vp->pts;
1176             is->video_current_pts_drift = is->video_current_pts - time;
1177             is->video_current_pos = vp->pos;
1178             if(is->pictq_size > 1){
1179                 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1180                 assert(nextvp->target_clock >= vp->target_clock);
1181                 next_target= nextvp->target_clock;
1182             }else{
1183                 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1184             }
1185             if(framedrop && time > next_target){
1186                 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1187                 if(is->pictq_size > 1 || time > next_target + 0.5){
1188                     /* update queue size and signal for next picture */
1189                     if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1190                         is->pictq_rindex = 0;
1191
1192                     SDL_LockMutex(is->pictq_mutex);
1193                     is->pictq_size--;
1194                     SDL_CondSignal(is->pictq_cond);
1195                     SDL_UnlockMutex(is->pictq_mutex);
1196                     goto retry;
1197                 }
1198             }
1199
1200             if(is->subtitle_st) {
1201                 if (is->subtitle_stream_changed) {
1202                     SDL_LockMutex(is->subpq_mutex);
1203
1204                     while (is->subpq_size) {
1205                         free_subpicture(&is->subpq[is->subpq_rindex]);
1206
1207                         /* update queue size and signal for next picture */
1208                         if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1209                             is->subpq_rindex = 0;
1210
1211                         is->subpq_size--;
1212                     }
1213                     is->subtitle_stream_changed = 0;
1214
1215                     SDL_CondSignal(is->subpq_cond);
1216                     SDL_UnlockMutex(is->subpq_mutex);
1217                 } else {
1218                     if (is->subpq_size > 0) {
1219                         sp = &is->subpq[is->subpq_rindex];
1220
1221                         if (is->subpq_size > 1)
1222                             sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1223                         else
1224                             sp2 = NULL;
1225
1226                         if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1227                                 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1228                         {
1229                             free_subpicture(sp);
1230
1231                             /* update queue size and signal for next picture */
1232                             if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1233                                 is->subpq_rindex = 0;
1234
1235                             SDL_LockMutex(is->subpq_mutex);
1236                             is->subpq_size--;
1237                             SDL_CondSignal(is->subpq_cond);
1238                             SDL_UnlockMutex(is->subpq_mutex);
1239                         }
1240                     }
1241                 }
1242             }
1243
1244             /* display picture */
1245             video_display(is);
1246
1247             /* update queue size and signal for next picture */
1248             if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1249                 is->pictq_rindex = 0;
1250
1251             SDL_LockMutex(is->pictq_mutex);
1252             is->pictq_size--;
1253             SDL_CondSignal(is->pictq_cond);
1254             SDL_UnlockMutex(is->pictq_mutex);
1255         }
1256     } else if (is->audio_st) {
1257         /* draw the next audio frame */
1258
1259         /* if only audio stream, then display the audio bars (better
1260            than nothing, just to test the implementation */
1261
1262         /* display picture */
1263         video_display(is);
1264     }
1265     if (show_status) {
1266         static int64_t last_time;
1267         int64_t cur_time;
1268         int aqsize, vqsize, sqsize;
1269         double av_diff;
1270
1271         cur_time = av_gettime();
1272         if (!last_time || (cur_time - last_time) >= 30000) {
1273             aqsize = 0;
1274             vqsize = 0;
1275             sqsize = 0;
1276             if (is->audio_st)
1277                 aqsize = is->audioq.size;
1278             if (is->video_st)
1279                 vqsize = is->videoq.size;
1280             if (is->subtitle_st)
1281                 sqsize = is->subtitleq.size;
1282             av_diff = 0;
1283             if (is->audio_st && is->video_st)
1284                 av_diff = get_audio_clock(is) - get_video_clock(is);
1285             printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64"   \r",
1286                    get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
1287             fflush(stdout);
1288             last_time = cur_time;
1289         }
1290     }
1291 }
1292
1293 static void stream_close(VideoState *is)
1294 {
1295     VideoPicture *vp;
1296     int i;
1297     /* XXX: use a special url_shutdown call to abort parse cleanly */
1298     is->abort_request = 1;
1299     SDL_WaitThread(is->parse_tid, NULL);
1300     SDL_WaitThread(is->refresh_tid, NULL);
1301
1302     /* free all pictures */
1303     for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1304         vp = &is->pictq[i];
1305 #if CONFIG_AVFILTER
1306         if (vp->picref) {
1307             avfilter_unref_buffer(vp->picref);
1308             vp->picref = NULL;
1309         }
1310 #endif
1311         if (vp->bmp) {
1312             SDL_FreeYUVOverlay(vp->bmp);
1313             vp->bmp = NULL;
1314         }
1315     }
1316     SDL_DestroyMutex(is->pictq_mutex);
1317     SDL_DestroyCond(is->pictq_cond);
1318     SDL_DestroyMutex(is->subpq_mutex);
1319     SDL_DestroyCond(is->subpq_cond);
1320 #if !CONFIG_AVFILTER
1321     if (is->img_convert_ctx)
1322         sws_freeContext(is->img_convert_ctx);
1323 #endif
1324     av_free(is);
1325 }
1326
1327 static void do_exit(void)
1328 {
1329     if (cur_stream) {
1330         stream_close(cur_stream);
1331         cur_stream = NULL;
1332     }
1333     uninit_opts();
1334 #if CONFIG_AVFILTER
1335     avfilter_uninit();
1336 #endif
1337     if (show_status)
1338         printf("\n");
1339     SDL_Quit();
1340     av_log(NULL, AV_LOG_QUIET, "");
1341     exit(0);
1342 }
1343
1344 /* allocate a picture (needs to do that in main thread to avoid
1345    potential locking problems */
1346 static void alloc_picture(void *opaque)
1347 {
1348     VideoState *is = opaque;
1349     VideoPicture *vp;
1350
1351     vp = &is->pictq[is->pictq_windex];
1352
1353     if (vp->bmp)
1354         SDL_FreeYUVOverlay(vp->bmp);
1355
1356 #if CONFIG_AVFILTER
1357     if (vp->picref)
1358         avfilter_unref_buffer(vp->picref);
1359     vp->picref = NULL;
1360
1361     vp->width   = is->out_video_filter->inputs[0]->w;
1362     vp->height  = is->out_video_filter->inputs[0]->h;
1363     vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1364 #else
1365     vp->width   = is->video_st->codec->width;
1366     vp->height  = is->video_st->codec->height;
1367     vp->pix_fmt = is->video_st->codec->pix_fmt;
1368 #endif
1369
1370     vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1371                                    SDL_YV12_OVERLAY,
1372                                    screen);
1373     if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1374         /* SDL allocates a buffer smaller than requested if the video
1375          * overlay hardware is unable to support the requested size. */
1376         fprintf(stderr, "Error: the video system does not support an image\n"
1377                         "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1378                         "to reduce the image size.\n", vp->width, vp->height );
1379         do_exit();
1380     }
1381
1382     SDL_LockMutex(is->pictq_mutex);
1383     vp->allocated = 1;
1384     SDL_CondSignal(is->pictq_cond);
1385     SDL_UnlockMutex(is->pictq_mutex);
1386 }
1387
1388 /**
1389  *
1390  * @param pts the dts of the pkt / pts of the frame and guessed if not known
1391  */
1392 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1393 {
1394     VideoPicture *vp;
1395     int dst_pix_fmt;
1396 #if CONFIG_AVFILTER
1397     AVPicture pict_src;
1398 #endif
1399     /* wait until we have space to put a new picture */
1400     SDL_LockMutex(is->pictq_mutex);
1401
1402     if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1403         is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1404
1405     while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1406            !is->videoq.abort_request) {
1407         SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1408     }
1409     SDL_UnlockMutex(is->pictq_mutex);
1410
1411     if (is->videoq.abort_request)
1412         return -1;
1413
1414     vp = &is->pictq[is->pictq_windex];
1415
1416     /* alloc or resize hardware picture buffer */
1417     if (!vp->bmp ||
1418 #if CONFIG_AVFILTER
1419         vp->width  != is->out_video_filter->inputs[0]->w ||
1420         vp->height != is->out_video_filter->inputs[0]->h) {
1421 #else
1422         vp->width != is->video_st->codec->width ||
1423         vp->height != is->video_st->codec->height) {
1424 #endif
1425         SDL_Event event;
1426
1427         vp->allocated = 0;
1428
1429         /* the allocation must be done in the main thread to avoid
1430            locking problems */
1431         event.type = FF_ALLOC_EVENT;
1432         event.user.data1 = is;
1433         SDL_PushEvent(&event);
1434
1435         /* wait until the picture is allocated */
1436         SDL_LockMutex(is->pictq_mutex);
1437         while (!vp->allocated && !is->videoq.abort_request) {
1438             SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1439         }
1440         SDL_UnlockMutex(is->pictq_mutex);
1441
1442         if (is->videoq.abort_request)
1443             return -1;
1444     }
1445
1446     /* if the frame is not skipped, then display it */
1447     if (vp->bmp) {
1448         AVPicture pict;
1449 #if CONFIG_AVFILTER
1450         if(vp->picref)
1451             avfilter_unref_buffer(vp->picref);
1452         vp->picref = src_frame->opaque;
1453 #endif
1454
1455         /* get a pointer on the bitmap */
1456         SDL_LockYUVOverlay (vp->bmp);
1457
1458         dst_pix_fmt = PIX_FMT_YUV420P;
1459         memset(&pict,0,sizeof(AVPicture));
1460         pict.data[0] = vp->bmp->pixels[0];
1461         pict.data[1] = vp->bmp->pixels[2];
1462         pict.data[2] = vp->bmp->pixels[1];
1463
1464         pict.linesize[0] = vp->bmp->pitches[0];
1465         pict.linesize[1] = vp->bmp->pitches[2];
1466         pict.linesize[2] = vp->bmp->pitches[1];
1467
1468 #if CONFIG_AVFILTER
1469         pict_src.data[0] = src_frame->data[0];
1470         pict_src.data[1] = src_frame->data[1];
1471         pict_src.data[2] = src_frame->data[2];
1472
1473         pict_src.linesize[0] = src_frame->linesize[0];
1474         pict_src.linesize[1] = src_frame->linesize[1];
1475         pict_src.linesize[2] = src_frame->linesize[2];
1476
1477         //FIXME use direct rendering
1478         av_picture_copy(&pict, &pict_src,
1479                         vp->pix_fmt, vp->width, vp->height);
1480 #else
1481         sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1482         is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1483             vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1484             dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1485         if (is->img_convert_ctx == NULL) {
1486             fprintf(stderr, "Cannot initialize the conversion context\n");
1487             exit(1);
1488         }
1489         sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1490                   0, vp->height, pict.data, pict.linesize);
1491 #endif
1492         /* update the bitmap content */
1493         SDL_UnlockYUVOverlay(vp->bmp);
1494
1495         vp->pts = pts;
1496         vp->pos = pos;
1497
1498         /* now we can update the picture count */
1499         if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1500             is->pictq_windex = 0;
1501         SDL_LockMutex(is->pictq_mutex);
1502         vp->target_clock= compute_target_time(vp->pts, is);
1503
1504         is->pictq_size++;
1505         SDL_UnlockMutex(is->pictq_mutex);
1506     }
1507     return 0;
1508 }
1509
1510 /**
1511  * compute the exact PTS for the picture if it is omitted in the stream
1512  * @param pts1 the dts of the pkt / pts of the frame
1513  */
1514 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1515 {
1516     double frame_delay, pts;
1517
1518     pts = pts1;
1519
1520     if (pts != 0) {
1521         /* update video clock with pts, if present */
1522         is->video_clock = pts;
1523     } else {
1524         pts = is->video_clock;
1525     }
1526     /* update video clock for next frame */
1527     frame_delay = av_q2d(is->video_st->codec->time_base);
1528     /* for MPEG2, the frame can be repeated, so we update the
1529        clock accordingly */
1530     frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1531     is->video_clock += frame_delay;
1532
1533 #if defined(DEBUG_SYNC) && 0
1534     printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1535            av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1536 #endif
1537     return queue_picture(is, src_frame, pts, pos);
1538 }
1539
1540 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1541 {
1542     int len1, got_picture, i;
1543
1544         if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1545             return -1;
1546
1547         if(pkt->data == flush_pkt.data){
1548             avcodec_flush_buffers(is->video_st->codec);
1549
1550             SDL_LockMutex(is->pictq_mutex);
1551             //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1552             for(i=0; i<VIDEO_PICTURE_QUEUE_SIZE; i++){
1553                 is->pictq[i].target_clock= 0;
1554             }
1555             while (is->pictq_size && !is->videoq.abort_request) {
1556                 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1557             }
1558             is->video_current_pos= -1;
1559             SDL_UnlockMutex(is->pictq_mutex);
1560
1561             init_pts_correction(&is->pts_ctx);
1562             is->frame_last_pts= AV_NOPTS_VALUE;
1563             is->frame_last_delay = 0;
1564             is->frame_timer = (double)av_gettime() / 1000000.0;
1565             is->skip_frames= 1;
1566             is->skip_frames_index= 0;
1567             return 0;
1568         }
1569
1570         /* NOTE: ipts is the PTS of the _first_ picture beginning in
1571            this packet, if any */
1572         is->video_st->codec->reordered_opaque= pkt->pts;
1573         len1 = avcodec_decode_video2(is->video_st->codec,
1574                                     frame, &got_picture,
1575                                     pkt);
1576
1577         if (got_picture) {
1578             if (decoder_reorder_pts == -1) {
1579                 *pts = guess_correct_pts(&is->pts_ctx, frame->reordered_opaque, pkt->dts);
1580             } else if (decoder_reorder_pts) {
1581                 *pts = frame->reordered_opaque;
1582             } else {
1583                 *pts = pkt->dts;
1584             }
1585
1586             if (*pts == AV_NOPTS_VALUE) {
1587                 *pts = 0;
1588             }
1589         }
1590
1591 //            if (len1 < 0)
1592 //                break;
1593     if (got_picture){
1594         is->skip_frames_index += 1;
1595         if(is->skip_frames_index >= is->skip_frames){
1596             is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1597             return 1;
1598         }
1599
1600     }
1601     return 0;
1602 }
1603
1604 #if CONFIG_AVFILTER
1605 typedef struct {
1606     VideoState *is;
1607     AVFrame *frame;
1608     int use_dr1;
1609 } FilterPriv;
1610
1611 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1612 {
1613     AVFilterContext *ctx = codec->opaque;
1614     AVFilterBufferRef  *ref;
1615     int perms = AV_PERM_WRITE;
1616     int i, w, h, stride[4];
1617     unsigned edge;
1618
1619     if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1620         if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1621         if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1622         if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1623     }
1624     if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1625
1626     w = codec->width;
1627     h = codec->height;
1628     avcodec_align_dimensions2(codec, &w, &h, stride);
1629     edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1630     w += edge << 1;
1631     h += edge << 1;
1632
1633     if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1634         return -1;
1635
1636     ref->video->w = codec->width;
1637     ref->video->h = codec->height;
1638     for(i = 0; i < 4; i ++) {
1639         unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1640         unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1641
1642         if (ref->data[i]) {
1643             ref->data[i]    += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1644         }
1645         pic->data[i]     = ref->data[i];
1646         pic->linesize[i] = ref->linesize[i];
1647     }
1648     pic->opaque = ref;
1649     pic->age    = INT_MAX;
1650     pic->type   = FF_BUFFER_TYPE_USER;
1651     pic->reordered_opaque = codec->reordered_opaque;
1652     return 0;
1653 }
1654
1655 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1656 {
1657     memset(pic->data, 0, sizeof(pic->data));
1658     avfilter_unref_buffer(pic->opaque);
1659 }
1660
1661 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1662 {
1663     AVFilterBufferRef *ref = pic->opaque;
1664
1665     if (pic->data[0] == NULL) {
1666         pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1667         return codec->get_buffer(codec, pic);
1668     }
1669
1670     if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1671         (codec->pix_fmt != ref->format)) {
1672         av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1673         return -1;
1674     }
1675
1676     pic->reordered_opaque = codec->reordered_opaque;
1677     return 0;
1678 }
1679
1680 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1681 {
1682     FilterPriv *priv = ctx->priv;
1683     AVCodecContext *codec;
1684     if(!opaque) return -1;
1685
1686     priv->is = opaque;
1687     codec    = priv->is->video_st->codec;
1688     codec->opaque = ctx;
1689     if(codec->codec->capabilities & CODEC_CAP_DR1) {
1690         priv->use_dr1 = 1;
1691         codec->get_buffer     = input_get_buffer;
1692         codec->release_buffer = input_release_buffer;
1693         codec->reget_buffer   = input_reget_buffer;
1694     }
1695
1696     priv->frame = avcodec_alloc_frame();
1697
1698     return 0;
1699 }
1700
1701 static void input_uninit(AVFilterContext *ctx)
1702 {
1703     FilterPriv *priv = ctx->priv;
1704     av_free(priv->frame);
1705 }
1706
1707 static int input_request_frame(AVFilterLink *link)
1708 {
1709     FilterPriv *priv = link->src->priv;
1710     AVFilterBufferRef *picref;
1711     int64_t pts = 0;
1712     AVPacket pkt;
1713     int ret;
1714
1715     while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1716         av_free_packet(&pkt);
1717     if (ret < 0)
1718         return -1;
1719
1720     if(priv->use_dr1) {
1721         picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1722     } else {
1723         picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1724         av_image_copy(picref->data, picref->linesize,
1725                       priv->frame->data, priv->frame->linesize,
1726                       picref->format, link->w, link->h);
1727     }
1728     av_free_packet(&pkt);
1729
1730     picref->pts = pts;
1731     picref->pos = pkt.pos;
1732     picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1733     avfilter_start_frame(link, picref);
1734     avfilter_draw_slice(link, 0, link->h, 1);
1735     avfilter_end_frame(link);
1736
1737     return 0;
1738 }
1739
1740 static int input_query_formats(AVFilterContext *ctx)
1741 {
1742     FilterPriv *priv = ctx->priv;
1743     enum PixelFormat pix_fmts[] = {
1744         priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1745     };
1746
1747     avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1748     return 0;
1749 }
1750
1751 static int input_config_props(AVFilterLink *link)
1752 {
1753     FilterPriv *priv  = link->src->priv;
1754     AVCodecContext *c = priv->is->video_st->codec;
1755
1756     link->w = c->width;
1757     link->h = c->height;
1758     link->time_base = priv->is->video_st->time_base;
1759
1760     return 0;
1761 }
1762
1763 static AVFilter input_filter =
1764 {
1765     .name      = "ffplay_input",
1766
1767     .priv_size = sizeof(FilterPriv),
1768
1769     .init      = input_init,
1770     .uninit    = input_uninit,
1771
1772     .query_formats = input_query_formats,
1773
1774     .inputs    = (AVFilterPad[]) {{ .name = NULL }},
1775     .outputs   = (AVFilterPad[]) {{ .name = "default",
1776                                     .type = AVMEDIA_TYPE_VIDEO,
1777                                     .request_frame = input_request_frame,
1778                                     .config_props  = input_config_props, },
1779                                   { .name = NULL }},
1780 };
1781
1782 static int get_filtered_video_frame(AVFilterContext *ctx, AVFrame *frame,
1783                                     int64_t *pts, AVRational *tb, int64_t *pos)
1784 {
1785     AVFilterBufferRef *pic;
1786
1787     if(avfilter_request_frame(ctx->inputs[0]))
1788         return -1;
1789     if(!(pic = ctx->inputs[0]->cur_buf))
1790         return -1;
1791     ctx->inputs[0]->cur_buf = NULL;
1792
1793     frame->opaque = pic;
1794     *pts          = pic->pts;
1795     *pos          = pic->pos;
1796     *tb           = ctx->inputs[0]->time_base;
1797
1798     memcpy(frame->data,     pic->data,     sizeof(frame->data));
1799     memcpy(frame->linesize, pic->linesize, sizeof(frame->linesize));
1800
1801     return 1;
1802 }
1803 #endif  /* CONFIG_AVFILTER */
1804
1805 static int video_thread(void *arg)
1806 {
1807     VideoState *is = arg;
1808     AVFrame *frame= avcodec_alloc_frame();
1809     int64_t pts_int;
1810     double pts;
1811     int ret;
1812
1813 #if CONFIG_AVFILTER
1814     int64_t pos;
1815     char sws_flags_str[128];
1816     FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1817     AVFilterContext *filt_src = NULL, *filt_out = NULL;
1818     AVFilterGraph *graph = av_mallocz(sizeof(AVFilterGraph));
1819     snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1820     graph->scale_sws_opts = av_strdup(sws_flags_str);
1821
1822     if (avfilter_open(&filt_src, &input_filter,  "src") < 0) goto the_end;
1823     if (avfilter_open(&filt_out, &ffsink      ,  "out") < 0) goto the_end;
1824
1825     if(avfilter_init_filter(filt_src, NULL, is))             goto the_end;
1826     if(avfilter_init_filter(filt_out, NULL, &ffsink_ctx))    goto the_end;
1827
1828
1829     if(vfilters) {
1830         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1831         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
1832
1833         outputs->name    = av_strdup("in");
1834         outputs->filter  = filt_src;
1835         outputs->pad_idx = 0;
1836         outputs->next    = NULL;
1837
1838         inputs->name    = av_strdup("out");
1839         inputs->filter  = filt_out;
1840         inputs->pad_idx = 0;
1841         inputs->next    = NULL;
1842
1843         if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
1844             goto the_end;
1845         av_freep(&vfilters);
1846     } else {
1847         if(avfilter_link(filt_src, 0, filt_out, 0) < 0)          goto the_end;
1848     }
1849     avfilter_graph_add_filter(graph, filt_src);
1850     avfilter_graph_add_filter(graph, filt_out);
1851
1852     if (avfilter_graph_config(graph, NULL) < 0)
1853         goto the_end;
1854
1855     is->out_video_filter = filt_out;
1856 #endif
1857
1858     for(;;) {
1859 #if !CONFIG_AVFILTER
1860         AVPacket pkt;
1861 #else
1862         AVRational tb;
1863 #endif
1864         while (is->paused && !is->videoq.abort_request)
1865             SDL_Delay(10);
1866 #if CONFIG_AVFILTER
1867         ret = get_filtered_video_frame(filt_out, frame, &pts_int, &tb, &pos);
1868
1869         if (av_cmp_q(tb, is->video_st->time_base)) {
1870             int64_t pts1 = pts_int;
1871             pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1872             av_log(NULL, AV_LOG_DEBUG, "video_thread(): "
1873                    "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1874                    tb.num, tb.den, pts1,
1875                    is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1876         }
1877 #else
1878         ret = get_video_frame(is, frame, &pts_int, &pkt);
1879 #endif
1880
1881         if (ret < 0) goto the_end;
1882
1883         if (!ret)
1884             continue;
1885
1886         pts = pts_int*av_q2d(is->video_st->time_base);
1887
1888 #if CONFIG_AVFILTER
1889         ret = output_picture2(is, frame, pts, pos);
1890 #else
1891         ret = output_picture2(is, frame, pts,  pkt.pos);
1892         av_free_packet(&pkt);
1893 #endif
1894         if (ret < 0)
1895             goto the_end;
1896
1897         if (step)
1898             if (cur_stream)
1899                 stream_pause(cur_stream);
1900     }
1901  the_end:
1902 #if CONFIG_AVFILTER
1903     avfilter_graph_destroy(graph);
1904     av_freep(&graph);
1905 #endif
1906     av_free(frame);
1907     return 0;
1908 }
1909
1910 static int subtitle_thread(void *arg)
1911 {
1912     VideoState *is = arg;
1913     SubPicture *sp;
1914     AVPacket pkt1, *pkt = &pkt1;
1915     int len1, got_subtitle;
1916     double pts;
1917     int i, j;
1918     int r, g, b, y, u, v, a;
1919
1920     for(;;) {
1921         while (is->paused && !is->subtitleq.abort_request) {
1922             SDL_Delay(10);
1923         }
1924         if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1925             break;
1926
1927         if(pkt->data == flush_pkt.data){
1928             avcodec_flush_buffers(is->subtitle_st->codec);
1929             continue;
1930         }
1931         SDL_LockMutex(is->subpq_mutex);
1932         while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1933                !is->subtitleq.abort_request) {
1934             SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1935         }
1936         SDL_UnlockMutex(is->subpq_mutex);
1937
1938         if (is->subtitleq.abort_request)
1939             goto the_end;
1940
1941         sp = &is->subpq[is->subpq_windex];
1942
1943        /* NOTE: ipts is the PTS of the _first_ picture beginning in
1944            this packet, if any */
1945         pts = 0;
1946         if (pkt->pts != AV_NOPTS_VALUE)
1947             pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1948
1949         len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1950                                     &sp->sub, &got_subtitle,
1951                                     pkt);
1952 //            if (len1 < 0)
1953 //                break;
1954         if (got_subtitle && sp->sub.format == 0) {
1955             sp->pts = pts;
1956
1957             for (i = 0; i < sp->sub.num_rects; i++)
1958             {
1959                 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1960                 {
1961                     RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1962                     y = RGB_TO_Y_CCIR(r, g, b);
1963                     u = RGB_TO_U_CCIR(r, g, b, 0);
1964                     v = RGB_TO_V_CCIR(r, g, b, 0);
1965                     YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1966                 }
1967             }
1968
1969             /* now we can update the picture count */
1970             if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1971                 is->subpq_windex = 0;
1972             SDL_LockMutex(is->subpq_mutex);
1973             is->subpq_size++;
1974             SDL_UnlockMutex(is->subpq_mutex);
1975         }
1976         av_free_packet(pkt);
1977 //        if (step)
1978 //            if (cur_stream)
1979 //                stream_pause(cur_stream);
1980     }
1981  the_end:
1982     return 0;
1983 }
1984
1985 /* copy samples for viewing in editor window */
1986 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1987 {
1988     int size, len, channels;
1989
1990     channels = is->audio_st->codec->channels;
1991
1992     size = samples_size / sizeof(short);
1993     while (size > 0) {
1994         len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1995         if (len > size)
1996             len = size;
1997         memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1998         samples += len;
1999         is->sample_array_index += len;
2000         if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
2001             is->sample_array_index = 0;
2002         size -= len;
2003     }
2004 }
2005
2006 /* return the new audio buffer size (samples can be added or deleted
2007    to get better sync if video or external master clock) */
2008 static int synchronize_audio(VideoState *is, short *samples,
2009                              int samples_size1, double pts)
2010 {
2011     int n, samples_size;
2012     double ref_clock;
2013
2014     n = 2 * is->audio_st->codec->channels;
2015     samples_size = samples_size1;
2016
2017     /* if not master, then we try to remove or add samples to correct the clock */
2018     if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
2019          is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
2020         double diff, avg_diff;
2021         int wanted_size, min_size, max_size, nb_samples;
2022
2023         ref_clock = get_master_clock(is);
2024         diff = get_audio_clock(is) - ref_clock;
2025
2026         if (diff < AV_NOSYNC_THRESHOLD) {
2027             is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2028             if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2029                 /* not enough measures to have a correct estimate */
2030                 is->audio_diff_avg_count++;
2031             } else {
2032                 /* estimate the A-V difference */
2033                 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2034
2035                 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2036                     wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2037                     nb_samples = samples_size / n;
2038
2039                     min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2040                     max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2041                     if (wanted_size < min_size)
2042                         wanted_size = min_size;
2043                     else if (wanted_size > max_size)
2044                         wanted_size = max_size;
2045
2046                     /* add or remove samples to correction the synchro */
2047                     if (wanted_size < samples_size) {
2048                         /* remove samples */
2049                         samples_size = wanted_size;
2050                     } else if (wanted_size > samples_size) {
2051                         uint8_t *samples_end, *q;
2052                         int nb;
2053
2054                         /* add samples */
2055                         nb = (samples_size - wanted_size);
2056                         samples_end = (uint8_t *)samples + samples_size - n;
2057                         q = samples_end + n;
2058                         while (nb > 0) {
2059                             memcpy(q, samples_end, n);
2060                             q += n;
2061                             nb -= n;
2062                         }
2063                         samples_size = wanted_size;
2064                     }
2065                 }
2066 #if 0
2067                 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2068                        diff, avg_diff, samples_size - samples_size1,
2069                        is->audio_clock, is->video_clock, is->audio_diff_threshold);
2070 #endif
2071             }
2072         } else {
2073             /* too big difference : may be initial PTS errors, so
2074                reset A-V filter */
2075             is->audio_diff_avg_count = 0;
2076             is->audio_diff_cum = 0;
2077         }
2078     }
2079
2080     return samples_size;
2081 }
2082
2083 /* decode one audio frame and returns its uncompressed size */
2084 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2085 {
2086     AVPacket *pkt_temp = &is->audio_pkt_temp;
2087     AVPacket *pkt = &is->audio_pkt;
2088     AVCodecContext *dec= is->audio_st->codec;
2089     int n, len1, data_size;
2090     double pts;
2091
2092     for(;;) {
2093         /* NOTE: the audio packet can contain several frames */
2094         while (pkt_temp->size > 0) {
2095             data_size = sizeof(is->audio_buf1);
2096             len1 = avcodec_decode_audio3(dec,
2097                                         (int16_t *)is->audio_buf1, &data_size,
2098                                         pkt_temp);
2099             if (len1 < 0) {
2100                 /* if error, we skip the frame */
2101                 pkt_temp->size = 0;
2102                 break;
2103             }
2104
2105             pkt_temp->data += len1;
2106             pkt_temp->size -= len1;
2107             if (data_size <= 0)
2108                 continue;
2109
2110             if (dec->sample_fmt != is->audio_src_fmt) {
2111                 if (is->reformat_ctx)
2112                     av_audio_convert_free(is->reformat_ctx);
2113                 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
2114                                                          dec->sample_fmt, 1, NULL, 0);
2115                 if (!is->reformat_ctx) {
2116                     fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2117                         avcodec_get_sample_fmt_name(dec->sample_fmt),
2118                         avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
2119                         break;
2120                 }
2121                 is->audio_src_fmt= dec->sample_fmt;
2122             }
2123
2124             if (is->reformat_ctx) {
2125                 const void *ibuf[6]= {is->audio_buf1};
2126                 void *obuf[6]= {is->audio_buf2};
2127                 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
2128                 int ostride[6]= {2};
2129                 int len= data_size/istride[0];
2130                 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2131                     printf("av_audio_convert() failed\n");
2132                     break;
2133                 }
2134                 is->audio_buf= is->audio_buf2;
2135                 /* FIXME: existing code assume that data_size equals framesize*channels*2
2136                           remove this legacy cruft */
2137                 data_size= len*2;
2138             }else{
2139                 is->audio_buf= is->audio_buf1;
2140             }
2141
2142             /* if no pts, then compute it */
2143             pts = is->audio_clock;
2144             *pts_ptr = pts;
2145             n = 2 * dec->channels;
2146             is->audio_clock += (double)data_size /
2147                 (double)(n * dec->sample_rate);
2148 #if defined(DEBUG_SYNC)
2149             {
2150                 static double last_clock;
2151                 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2152                        is->audio_clock - last_clock,
2153                        is->audio_clock, pts);
2154                 last_clock = is->audio_clock;
2155             }
2156 #endif
2157             return data_size;
2158         }
2159
2160         /* free the current packet */
2161         if (pkt->data)
2162             av_free_packet(pkt);
2163
2164         if (is->paused || is->audioq.abort_request) {
2165             return -1;
2166         }
2167
2168         /* read next packet */
2169         if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2170             return -1;
2171         if(pkt->data == flush_pkt.data){
2172             avcodec_flush_buffers(dec);
2173             continue;
2174         }
2175
2176         pkt_temp->data = pkt->data;
2177         pkt_temp->size = pkt->size;
2178
2179         /* if update the audio clock with the pts */
2180         if (pkt->pts != AV_NOPTS_VALUE) {
2181             is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2182         }
2183     }
2184 }
2185
2186 /* get the current audio output buffer size, in samples. With SDL, we
2187    cannot have a precise information */
2188 static int audio_write_get_buf_size(VideoState *is)
2189 {
2190     return is->audio_buf_size - is->audio_buf_index;
2191 }
2192
2193
2194 /* prepare a new audio buffer */
2195 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2196 {
2197     VideoState *is = opaque;
2198     int audio_size, len1;
2199     double pts;
2200
2201     audio_callback_time = av_gettime();
2202
2203     while (len > 0) {
2204         if (is->audio_buf_index >= is->audio_buf_size) {
2205            audio_size = audio_decode_frame(is, &pts);
2206            if (audio_size < 0) {
2207                 /* if error, just output silence */
2208                is->audio_buf = is->audio_buf1;
2209                is->audio_buf_size = 1024;
2210                memset(is->audio_buf, 0, is->audio_buf_size);
2211            } else {
2212                if (is->show_audio)
2213                    update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2214                audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2215                                               pts);
2216                is->audio_buf_size = audio_size;
2217            }
2218            is->audio_buf_index = 0;
2219         }
2220         len1 = is->audio_buf_size - is->audio_buf_index;
2221         if (len1 > len)
2222             len1 = len;
2223         memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2224         len -= len1;
2225         stream += len1;
2226         is->audio_buf_index += len1;
2227     }
2228 }
2229
2230 /* open a given stream. Return 0 if OK */
2231 static int stream_component_open(VideoState *is, int stream_index)
2232 {
2233     AVFormatContext *ic = is->ic;
2234     AVCodecContext *avctx;
2235     AVCodec *codec;
2236     SDL_AudioSpec wanted_spec, spec;
2237
2238     if (stream_index < 0 || stream_index >= ic->nb_streams)
2239         return -1;
2240     avctx = ic->streams[stream_index]->codec;
2241
2242     /* prepare audio output */
2243     if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2244         if (avctx->channels > 0) {
2245             avctx->request_channels = FFMIN(2, avctx->channels);
2246         } else {
2247             avctx->request_channels = 2;
2248         }
2249     }
2250
2251     codec = avcodec_find_decoder(avctx->codec_id);
2252     avctx->debug_mv = debug_mv;
2253     avctx->debug = debug;
2254     avctx->workaround_bugs = workaround_bugs;
2255     avctx->lowres = lowres;
2256     if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2257     avctx->idct_algo= idct;
2258     if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2259     avctx->skip_frame= skip_frame;
2260     avctx->skip_idct= skip_idct;
2261     avctx->skip_loop_filter= skip_loop_filter;
2262     avctx->error_recognition= error_recognition;
2263     avctx->error_concealment= error_concealment;
2264     avcodec_thread_init(avctx, thread_count);
2265
2266     set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2267
2268     if (!codec ||
2269         avcodec_open(avctx, codec) < 0)
2270         return -1;
2271
2272     /* prepare audio output */
2273     if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2274         wanted_spec.freq = avctx->sample_rate;
2275         wanted_spec.format = AUDIO_S16SYS;
2276         wanted_spec.channels = avctx->channels;
2277         wanted_spec.silence = 0;
2278         wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2279         wanted_spec.callback = sdl_audio_callback;
2280         wanted_spec.userdata = is;
2281         if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2282             fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2283             return -1;
2284         }
2285         is->audio_hw_buf_size = spec.size;
2286         is->audio_src_fmt= SAMPLE_FMT_S16;
2287     }
2288
2289     ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2290     switch(avctx->codec_type) {
2291     case AVMEDIA_TYPE_AUDIO:
2292         is->audio_stream = stream_index;
2293         is->audio_st = ic->streams[stream_index];
2294         is->audio_buf_size = 0;
2295         is->audio_buf_index = 0;
2296
2297         /* init averaging filter */
2298         is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2299         is->audio_diff_avg_count = 0;
2300         /* since we do not have a precise anough audio fifo fullness,
2301            we correct audio sync only if larger than this threshold */
2302         is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2303
2304         memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2305         packet_queue_init(&is->audioq);
2306         SDL_PauseAudio(0);
2307         break;
2308     case AVMEDIA_TYPE_VIDEO:
2309         is->video_stream = stream_index;
2310         is->video_st = ic->streams[stream_index];
2311
2312 //        is->video_current_pts_time = av_gettime();
2313
2314         packet_queue_init(&is->videoq);
2315         is->video_tid = SDL_CreateThread(video_thread, is);
2316         break;
2317     case AVMEDIA_TYPE_SUBTITLE:
2318         is->subtitle_stream = stream_index;
2319         is->subtitle_st = ic->streams[stream_index];
2320         packet_queue_init(&is->subtitleq);
2321
2322         is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2323         break;
2324     default:
2325         break;
2326     }
2327     return 0;
2328 }
2329
2330 static void stream_component_close(VideoState *is, int stream_index)
2331 {
2332     AVFormatContext *ic = is->ic;
2333     AVCodecContext *avctx;
2334
2335     if (stream_index < 0 || stream_index >= ic->nb_streams)
2336         return;
2337     avctx = ic->streams[stream_index]->codec;
2338
2339     switch(avctx->codec_type) {
2340     case AVMEDIA_TYPE_AUDIO:
2341         packet_queue_abort(&is->audioq);
2342
2343         SDL_CloseAudio();
2344
2345         packet_queue_end(&is->audioq);
2346         if (is->reformat_ctx)
2347             av_audio_convert_free(is->reformat_ctx);
2348         is->reformat_ctx = NULL;
2349         break;
2350     case AVMEDIA_TYPE_VIDEO:
2351         packet_queue_abort(&is->videoq);
2352
2353         /* note: we also signal this mutex to make sure we deblock the
2354            video thread in all cases */
2355         SDL_LockMutex(is->pictq_mutex);
2356         SDL_CondSignal(is->pictq_cond);
2357         SDL_UnlockMutex(is->pictq_mutex);
2358
2359         SDL_WaitThread(is->video_tid, NULL);
2360
2361         packet_queue_end(&is->videoq);
2362         break;
2363     case AVMEDIA_TYPE_SUBTITLE:
2364         packet_queue_abort(&is->subtitleq);
2365
2366         /* note: we also signal this mutex to make sure we deblock the
2367            video thread in all cases */
2368         SDL_LockMutex(is->subpq_mutex);
2369         is->subtitle_stream_changed = 1;
2370
2371         SDL_CondSignal(is->subpq_cond);
2372         SDL_UnlockMutex(is->subpq_mutex);
2373
2374         SDL_WaitThread(is->subtitle_tid, NULL);
2375
2376         packet_queue_end(&is->subtitleq);
2377         break;
2378     default:
2379         break;
2380     }
2381
2382     ic->streams[stream_index]->discard = AVDISCARD_ALL;
2383     avcodec_close(avctx);
2384     switch(avctx->codec_type) {
2385     case AVMEDIA_TYPE_AUDIO:
2386         is->audio_st = NULL;
2387         is->audio_stream = -1;
2388         break;
2389     case AVMEDIA_TYPE_VIDEO:
2390         is->video_st = NULL;
2391         is->video_stream = -1;
2392         break;
2393     case AVMEDIA_TYPE_SUBTITLE:
2394         is->subtitle_st = NULL;
2395         is->subtitle_stream = -1;
2396         break;
2397     default:
2398         break;
2399     }
2400 }
2401
2402 /* since we have only one decoding thread, we can use a global
2403    variable instead of a thread local variable */
2404 static VideoState *global_video_state;
2405
2406 static int decode_interrupt_cb(void)
2407 {
2408     return (global_video_state && global_video_state->abort_request);
2409 }
2410
2411 /* this thread gets the stream from the disk or the network */
2412 static int decode_thread(void *arg)
2413 {
2414     VideoState *is = arg;
2415     AVFormatContext *ic;
2416     int err, i, ret;
2417     int st_index[AVMEDIA_TYPE_NB];
2418     int st_count[AVMEDIA_TYPE_NB]={0};
2419     int st_best_packet_count[AVMEDIA_TYPE_NB];
2420     AVPacket pkt1, *pkt = &pkt1;
2421     AVFormatParameters params, *ap = &params;
2422     int eof=0;
2423     int pkt_in_play_range = 0;
2424
2425     ic = avformat_alloc_context();
2426
2427     memset(st_index, -1, sizeof(st_index));
2428     memset(st_best_packet_count, -1, sizeof(st_best_packet_count));
2429     is->video_stream = -1;
2430     is->audio_stream = -1;
2431     is->subtitle_stream = -1;
2432
2433     global_video_state = is;
2434     url_set_interrupt_cb(decode_interrupt_cb);
2435
2436     memset(ap, 0, sizeof(*ap));
2437
2438     ap->prealloced_context = 1;
2439     ap->width = frame_width;
2440     ap->height= frame_height;
2441     ap->time_base= (AVRational){1, 25};
2442     ap->pix_fmt = frame_pix_fmt;
2443
2444     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2445
2446     err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2447     if (err < 0) {
2448         print_error(is->filename, err);
2449         ret = -1;
2450         goto fail;
2451     }
2452     is->ic = ic;
2453
2454     if(genpts)
2455         ic->flags |= AVFMT_FLAG_GENPTS;
2456
2457     err = av_find_stream_info(ic);
2458     if (err < 0) {
2459         fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2460         ret = -1;
2461         goto fail;
2462     }
2463     if(ic->pb)
2464         ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2465
2466     if(seek_by_bytes<0)
2467         seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2468
2469     /* if seeking requested, we execute it */
2470     if (start_time != AV_NOPTS_VALUE) {
2471         int64_t timestamp;
2472
2473         timestamp = start_time;
2474         /* add the stream start time */
2475         if (ic->start_time != AV_NOPTS_VALUE)
2476             timestamp += ic->start_time;
2477         ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2478         if (ret < 0) {
2479             fprintf(stderr, "%s: could not seek to position %0.3f\n",
2480                     is->filename, (double)timestamp / AV_TIME_BASE);
2481         }
2482     }
2483
2484     for(i = 0; i < ic->nb_streams; i++) {
2485         AVStream *st= ic->streams[i];
2486         AVCodecContext *avctx = st->codec;
2487         ic->streams[i]->discard = AVDISCARD_ALL;
2488         if(avctx->codec_type >= (unsigned)AVMEDIA_TYPE_NB)
2489             continue;
2490         if(st_count[avctx->codec_type]++ != wanted_stream[avctx->codec_type] && wanted_stream[avctx->codec_type] >= 0)
2491             continue;
2492
2493         if(st_best_packet_count[avctx->codec_type] >= st->codec_info_nb_frames)
2494             continue;
2495         st_best_packet_count[avctx->codec_type]= st->codec_info_nb_frames;
2496
2497         switch(avctx->codec_type) {
2498         case AVMEDIA_TYPE_AUDIO:
2499             if (!audio_disable)
2500                 st_index[AVMEDIA_TYPE_AUDIO] = i;
2501             break;
2502         case AVMEDIA_TYPE_VIDEO:
2503         case AVMEDIA_TYPE_SUBTITLE:
2504             if (!video_disable)
2505                 st_index[avctx->codec_type] = i;
2506             break;
2507         default:
2508             break;
2509         }
2510     }
2511     if (show_status) {
2512         dump_format(ic, 0, is->filename, 0);
2513     }
2514
2515     /* open the streams */
2516     if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2517         stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2518     }
2519
2520     ret=-1;
2521     if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2522         ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2523     }
2524     is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2525     if(ret<0) {
2526         if (!display_disable)
2527             is->show_audio = 2;
2528     }
2529
2530     if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2531         stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2532     }
2533
2534     if (is->video_stream < 0 && is->audio_stream < 0) {
2535         fprintf(stderr, "%s: could not open codecs\n", is->filename);
2536         ret = -1;
2537         goto fail;
2538     }
2539
2540     for(;;) {
2541         if (is->abort_request)
2542             break;
2543         if (is->paused != is->last_paused) {
2544             is->last_paused = is->paused;
2545             if (is->paused)
2546                 is->read_pause_return= av_read_pause(ic);
2547             else
2548                 av_read_play(ic);
2549         }
2550 #if CONFIG_RTSP_DEMUXER
2551         if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2552             /* wait 10 ms to avoid trying to get another packet */
2553             /* XXX: horrible */
2554             SDL_Delay(10);
2555             continue;
2556         }
2557 #endif
2558         if (is->seek_req) {
2559             int64_t seek_target= is->seek_pos;
2560             int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2561             int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2562 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2563 //      of the seek_pos/seek_rel variables
2564
2565             ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2566             if (ret < 0) {
2567                 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2568             }else{
2569                 if (is->audio_stream >= 0) {
2570                     packet_queue_flush(&is->audioq);
2571                     packet_queue_put(&is->audioq, &flush_pkt);
2572                 }
2573                 if (is->subtitle_stream >= 0) {
2574                     packet_queue_flush(&is->subtitleq);
2575                     packet_queue_put(&is->subtitleq, &flush_pkt);
2576                 }
2577                 if (is->video_stream >= 0) {
2578                     packet_queue_flush(&is->videoq);
2579                     packet_queue_put(&is->videoq, &flush_pkt);
2580                 }
2581             }
2582             is->seek_req = 0;
2583             eof= 0;
2584         }
2585
2586         /* if the queue are full, no need to read more */
2587         if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2588             || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2589                 && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
2590                 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2591             /* wait 10 ms */
2592             SDL_Delay(10);
2593             continue;
2594         }
2595         if(eof) {
2596             if(is->video_stream >= 0){
2597                 av_init_packet(pkt);
2598                 pkt->data=NULL;
2599                 pkt->size=0;
2600                 pkt->stream_index= is->video_stream;
2601                 packet_queue_put(&is->videoq, pkt);
2602             }
2603             SDL_Delay(10);
2604             if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2605                 if(loop!=1 && (!loop || --loop)){
2606                     stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2607                 }else if(autoexit){
2608                     ret=AVERROR_EOF;
2609                     goto fail;
2610                 }
2611             }
2612             continue;
2613         }
2614         ret = av_read_frame(ic, pkt);
2615         if (ret < 0) {
2616             if (ret == AVERROR_EOF || url_feof(ic->pb))
2617                 eof=1;
2618             if (url_ferror(ic->pb))
2619                 break;
2620             SDL_Delay(100); /* wait for user event */
2621             continue;
2622         }
2623         /* check if packet is in play range specified by user, then queue, otherwise discard */
2624         pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2625                 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2626                 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2627                 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2628                 <= ((double)duration/1000000);
2629         if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2630             packet_queue_put(&is->audioq, pkt);
2631         } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2632             packet_queue_put(&is->videoq, pkt);
2633         } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2634             packet_queue_put(&is->subtitleq, pkt);
2635         } else {
2636             av_free_packet(pkt);
2637         }
2638     }
2639     /* wait until the end */
2640     while (!is->abort_request) {
2641         SDL_Delay(100);
2642     }
2643
2644     ret = 0;
2645  fail:
2646     /* disable interrupting */
2647     global_video_state = NULL;
2648
2649     /* close each stream */
2650     if (is->audio_stream >= 0)
2651         stream_component_close(is, is->audio_stream);
2652     if (is->video_stream >= 0)
2653         stream_component_close(is, is->video_stream);
2654     if (is->subtitle_stream >= 0)
2655         stream_component_close(is, is->subtitle_stream);
2656     if (is->ic) {
2657         av_close_input_file(is->ic);
2658         is->ic = NULL; /* safety */
2659     }
2660     url_set_interrupt_cb(NULL);
2661
2662     if (ret != 0) {
2663         SDL_Event event;
2664
2665         event.type = FF_QUIT_EVENT;
2666         event.user.data1 = is;
2667         SDL_PushEvent(&event);
2668     }
2669     return 0;
2670 }
2671
2672 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2673 {
2674     VideoState *is;
2675
2676     is = av_mallocz(sizeof(VideoState));
2677     if (!is)
2678         return NULL;
2679     av_strlcpy(is->filename, filename, sizeof(is->filename));
2680     is->iformat = iformat;
2681     is->ytop = 0;
2682     is->xleft = 0;
2683
2684     /* start video display */
2685     is->pictq_mutex = SDL_CreateMutex();
2686     is->pictq_cond = SDL_CreateCond();
2687
2688     is->subpq_mutex = SDL_CreateMutex();
2689     is->subpq_cond = SDL_CreateCond();
2690
2691     is->av_sync_type = av_sync_type;
2692     is->parse_tid = SDL_CreateThread(decode_thread, is);
2693     if (!is->parse_tid) {
2694         av_free(is);
2695         return NULL;
2696     }
2697     return is;
2698 }
2699
2700 static void stream_cycle_channel(VideoState *is, int codec_type)
2701 {
2702     AVFormatContext *ic = is->ic;
2703     int start_index, stream_index;
2704     AVStream *st;
2705
2706     if (codec_type == AVMEDIA_TYPE_VIDEO)
2707         start_index = is->video_stream;
2708     else if (codec_type == AVMEDIA_TYPE_AUDIO)
2709         start_index = is->audio_stream;
2710     else
2711         start_index = is->subtitle_stream;
2712     if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2713         return;
2714     stream_index = start_index;
2715     for(;;) {
2716         if (++stream_index >= is->ic->nb_streams)
2717         {
2718             if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2719             {
2720                 stream_index = -1;
2721                 goto the_end;
2722             } else
2723                 stream_index = 0;
2724         }
2725         if (stream_index == start_index)
2726             return;
2727         st = ic->streams[stream_index];
2728         if (st->codec->codec_type == codec_type) {
2729             /* check that parameters are OK */
2730             switch(codec_type) {
2731             case AVMEDIA_TYPE_AUDIO:
2732                 if (st->codec->sample_rate != 0 &&
2733                     st->codec->channels != 0)
2734                     goto the_end;
2735                 break;
2736             case AVMEDIA_TYPE_VIDEO:
2737             case AVMEDIA_TYPE_SUBTITLE:
2738                 goto the_end;
2739             default:
2740                 break;
2741             }
2742         }
2743     }
2744  the_end:
2745     stream_component_close(is, start_index);
2746     stream_component_open(is, stream_index);
2747 }
2748
2749
2750 static void toggle_full_screen(void)
2751 {
2752     is_full_screen = !is_full_screen;
2753     if (!fs_screen_width) {
2754         /* use default SDL method */
2755 //        SDL_WM_ToggleFullScreen(screen);
2756     }
2757     video_open(cur_stream);
2758 }
2759
2760 static void toggle_pause(void)
2761 {
2762     if (cur_stream)
2763         stream_pause(cur_stream);
2764     step = 0;
2765 }
2766
2767 static void step_to_next_frame(void)
2768 {
2769     if (cur_stream) {
2770         /* if the stream is paused unpause it, then step */
2771         if (cur_stream->paused)
2772             stream_pause(cur_stream);
2773     }
2774     step = 1;
2775 }
2776
2777 static void toggle_audio_display(void)
2778 {
2779     if (cur_stream) {
2780         int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2781         cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2782         fill_rectangle(screen,
2783                     cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2784                     bgcolor);
2785         SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2786     }
2787 }
2788
2789 /* handle an event sent by the GUI */
2790 static void event_loop(void)
2791 {
2792     SDL_Event event;
2793     double incr, pos, frac;
2794
2795     for(;;) {
2796         double x;
2797         SDL_WaitEvent(&event);
2798         switch(event.type) {
2799         case SDL_KEYDOWN:
2800             if (exit_on_keydown) {
2801                 do_exit();
2802                 break;
2803             }
2804             switch(event.key.keysym.sym) {
2805             case SDLK_ESCAPE:
2806             case SDLK_q:
2807                 do_exit();
2808                 break;
2809             case SDLK_f:
2810                 toggle_full_screen();
2811                 break;
2812             case SDLK_p:
2813             case SDLK_SPACE:
2814                 toggle_pause();
2815                 break;
2816             case SDLK_s: //S: Step to next frame
2817                 step_to_next_frame();
2818                 break;
2819             case SDLK_a:
2820                 if (cur_stream)
2821                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2822                 break;
2823             case SDLK_v:
2824                 if (cur_stream)
2825                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2826                 break;
2827             case SDLK_t:
2828                 if (cur_stream)
2829                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2830                 break;
2831             case SDLK_w:
2832                 toggle_audio_display();
2833                 break;
2834             case SDLK_LEFT:
2835                 incr = -10.0;
2836                 goto do_seek;
2837             case SDLK_RIGHT:
2838                 incr = 10.0;
2839                 goto do_seek;
2840             case SDLK_UP:
2841                 incr = 60.0;
2842                 goto do_seek;
2843             case SDLK_DOWN:
2844                 incr = -60.0;
2845             do_seek:
2846                 if (cur_stream) {
2847                     if (seek_by_bytes) {
2848                         if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2849                             pos= cur_stream->video_current_pos;
2850                         }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2851                             pos= cur_stream->audio_pkt.pos;
2852                         }else
2853                             pos = url_ftell(cur_stream->ic->pb);
2854                         if (cur_stream->ic->bit_rate)
2855                             incr *= cur_stream->ic->bit_rate / 8.0;
2856                         else
2857                             incr *= 180000.0;
2858                         pos += incr;
2859                         stream_seek(cur_stream, pos, incr, 1);
2860                     } else {
2861                         pos = get_master_clock(cur_stream);
2862                         pos += incr;
2863                         stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2864                     }
2865                 }
2866                 break;
2867             default:
2868                 break;
2869             }
2870             break;
2871         case SDL_MOUSEBUTTONDOWN:
2872             if (exit_on_mousedown) {
2873                 do_exit();
2874                 break;
2875             }
2876         case SDL_MOUSEMOTION:
2877             if(event.type ==SDL_MOUSEBUTTONDOWN){
2878                 x= event.button.x;
2879             }else{
2880                 if(event.motion.state != SDL_PRESSED)
2881                     break;
2882                 x= event.motion.x;
2883             }
2884             if (cur_stream) {
2885                 if(seek_by_bytes || cur_stream->ic->duration<=0){
2886                     uint64_t size=  url_fsize(cur_stream->ic->pb);
2887                     stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2888                 }else{
2889                     int64_t ts;
2890                     int ns, hh, mm, ss;
2891                     int tns, thh, tmm, tss;
2892                     tns = cur_stream->ic->duration/1000000LL;
2893                     thh = tns/3600;
2894                     tmm = (tns%3600)/60;
2895                     tss = (tns%60);
2896                     frac = x/cur_stream->width;
2897                     ns = frac*tns;
2898                     hh = ns/3600;
2899                     mm = (ns%3600)/60;
2900                     ss = (ns%60);
2901                     fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d)       \n", frac*100,
2902                             hh, mm, ss, thh, tmm, tss);
2903                     ts = frac*cur_stream->ic->duration;
2904                     if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2905                         ts += cur_stream->ic->start_time;
2906                     stream_seek(cur_stream, ts, 0, 0);
2907                 }
2908             }
2909             break;
2910         case SDL_VIDEORESIZE:
2911             if (cur_stream) {
2912                 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2913                                           SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2914                 screen_width = cur_stream->width = event.resize.w;
2915                 screen_height= cur_stream->height= event.resize.h;
2916             }
2917             break;
2918         case SDL_QUIT:
2919         case FF_QUIT_EVENT:
2920             do_exit();
2921             break;
2922         case FF_ALLOC_EVENT:
2923             video_open(event.user.data1);
2924             alloc_picture(event.user.data1);
2925             break;
2926         case FF_REFRESH_EVENT:
2927             video_refresh_timer(event.user.data1);
2928             cur_stream->refresh=0;
2929             break;
2930         default:
2931             break;
2932         }
2933     }
2934 }
2935
2936 static void opt_frame_size(const char *arg)
2937 {
2938     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2939         fprintf(stderr, "Incorrect frame size\n");
2940         exit(1);
2941     }
2942     if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2943         fprintf(stderr, "Frame size must be a multiple of 2\n");
2944         exit(1);
2945     }
2946 }
2947
2948 static int opt_width(const char *opt, const char *arg)
2949 {
2950     screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2951     return 0;
2952 }
2953
2954 static int opt_height(const char *opt, const char *arg)
2955 {
2956     screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2957     return 0;
2958 }
2959
2960 static void opt_format(const char *arg)
2961 {
2962     file_iformat = av_find_input_format(arg);
2963     if (!file_iformat) {
2964         fprintf(stderr, "Unknown input format: %s\n", arg);
2965         exit(1);
2966     }
2967 }
2968
2969 static void opt_frame_pix_fmt(const char *arg)
2970 {
2971     frame_pix_fmt = av_get_pix_fmt(arg);
2972 }
2973
2974 static int opt_sync(const char *opt, const char *arg)
2975 {
2976     if (!strcmp(arg, "audio"))
2977         av_sync_type = AV_SYNC_AUDIO_MASTER;
2978     else if (!strcmp(arg, "video"))
2979         av_sync_type = AV_SYNC_VIDEO_MASTER;
2980     else if (!strcmp(arg, "ext"))
2981         av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2982     else {
2983         fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2984         exit(1);
2985     }
2986     return 0;
2987 }
2988
2989 static int opt_seek(const char *opt, const char *arg)
2990 {
2991     start_time = parse_time_or_die(opt, arg, 1);
2992     return 0;
2993 }
2994
2995 static int opt_duration(const char *opt, const char *arg)
2996 {
2997     duration = parse_time_or_die(opt, arg, 1);
2998     return 0;
2999 }
3000
3001 static int opt_debug(const char *opt, const char *arg)
3002 {
3003     av_log_set_level(99);
3004     debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3005     return 0;
3006 }
3007
3008 static int opt_vismv(const char *opt, const char *arg)
3009 {
3010     debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
3011     return 0;
3012 }
3013
3014 static int opt_thread_count(const char *opt, const char *arg)
3015 {
3016     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3017 #if !HAVE_THREADS
3018     fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
3019 #endif
3020     return 0;
3021 }
3022
3023 static const OptionDef options[] = {
3024 #include "cmdutils_common_opts.h"
3025     { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
3026     { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
3027     { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3028     { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
3029     { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
3030     { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
3031     { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
3032     { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
3033     { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
3034     { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
3035     { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play  \"duration\" seconds of audio/video", "duration" },
3036     { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3037     { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3038     { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3039     { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3040     { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3041     { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3042     { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3043     { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3044     { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3045     { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3046     { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3047     { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3048     { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3049     { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3050     { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3051     { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo",  "algo" },
3052     { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)",  "threshold" },
3053     { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options",  "bit_mask" },
3054     { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3055     { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3056     { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3057     { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3058     { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3059     { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3060     { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3061     { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3062 #if CONFIG_AVFILTER
3063     { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3064 #endif
3065     { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3066     { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3067     { NULL, },
3068 };
3069
3070 static void show_usage(void)
3071 {
3072     printf("Simple media player\n");
3073     printf("usage: ffplay [options] input_file\n");
3074     printf("\n");
3075 }
3076
3077 static void show_help(void)
3078 {
3079     av_log_set_callback(log_callback_help);
3080     show_usage();
3081     show_help_options(options, "Main options:\n",
3082                       OPT_EXPERT, 0);
3083     show_help_options(options, "\nAdvanced options:\n",
3084                       OPT_EXPERT, OPT_EXPERT);
3085     printf("\n");
3086     av_opt_show2(avcodec_opts[0], NULL,
3087                  AV_OPT_FLAG_DECODING_PARAM, 0);
3088     printf("\n");
3089     av_opt_show2(avformat_opts, NULL,
3090                  AV_OPT_FLAG_DECODING_PARAM, 0);
3091 #if !CONFIG_AVFILTER
3092     printf("\n");
3093     av_opt_show2(sws_opts, NULL,
3094                  AV_OPT_FLAG_ENCODING_PARAM, 0);
3095 #endif
3096     printf("\nWhile playing:\n"
3097            "q, ESC              quit\n"
3098            "f                   toggle full screen\n"
3099            "p, SPC              pause\n"
3100            "a                   cycle audio channel\n"
3101            "v                   cycle video channel\n"
3102            "t                   cycle subtitle channel\n"
3103            "w                   show audio waves\n"
3104            "s                   activate frame-step mode\n"
3105            "left/right          seek backward/forward 10 seconds\n"
3106            "down/up             seek backward/forward 1 minute\n"
3107            "mouse click         seek to percentage in file corresponding to fraction of width\n"
3108            );
3109 }
3110
3111 static void opt_input_file(const char *filename)
3112 {
3113     if (input_filename) {
3114         fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3115                 filename, input_filename);
3116         exit(1);
3117     }
3118     if (!strcmp(filename, "-"))
3119         filename = "pipe:";
3120     input_filename = filename;
3121 }
3122
3123 /* Called from the main */
3124 int main(int argc, char **argv)
3125 {
3126     int flags;
3127
3128     av_log_set_flags(AV_LOG_SKIP_REPEATED);
3129
3130     /* register all codecs, demux and protocols */
3131     avcodec_register_all();
3132 #if CONFIG_AVDEVICE
3133     avdevice_register_all();
3134 #endif
3135 #if CONFIG_AVFILTER
3136     avfilter_register_all();
3137 #endif
3138     av_register_all();
3139
3140     init_opts();
3141
3142     show_banner();
3143
3144     parse_options(argc, argv, options, opt_input_file);
3145
3146     if (!input_filename) {
3147         show_usage();
3148         fprintf(stderr, "An input file must be specified\n");
3149         fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3150         exit(1);
3151     }
3152
3153     if (display_disable) {
3154         video_disable = 1;
3155     }
3156     flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3157 #if !defined(__MINGW32__) && !defined(__APPLE__)
3158     flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3159 #endif
3160     if (SDL_Init (flags)) {
3161         fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3162         exit(1);
3163     }
3164
3165     if (!display_disable) {
3166 #if HAVE_SDL_VIDEO_SIZE
3167         const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3168         fs_screen_width = vi->current_w;
3169         fs_screen_height = vi->current_h;
3170 #endif
3171     }
3172
3173     SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3174     SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3175     SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3176
3177     av_init_packet(&flush_pkt);
3178     flush_pkt.data= "FLUSH";
3179
3180     cur_stream = stream_open(input_filename, file_iformat);
3181
3182     event_loop();
3183
3184     /* never returns */
3185
3186     return 0;
3187 }