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 "libavcore/samplefmt.h"
  34 #include "libavformat/avformat.h"
  35 #include "libavdevice/avdevice.h"
  36 #include "libswscale/swscale.h"
  37 #include "libavcodec/audioconvert.h"
  38 #include "libavcodec/opt.h"
  39 #include "libavcodec/avfft.h"
  40
  41 #if CONFIG_AVFILTER
  42 # include "libavfilter/avfilter.h"
  43 # include "libavfilter/avfiltergraph.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
  62 //#define DEBUG_SYNC
  63
  64 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
  65 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
  66 #define MIN_FRAMES 5
  67
  68 /* SDL audio buffer size, in samples. Should be small to have precise
  69    A/V sync as SDL does not have hardware buffer fullness info. */
  70 #define SDL_AUDIO_BUFFER_SIZE 1024
  71
  72 /* no AV sync correction is done if below the AV sync threshold */
  73 #define AV_SYNC_THRESHOLD 0.01
  74 /* no AV correction is done if too big error */
  75 #define AV_NOSYNC_THRESHOLD 10.0
  76
  77 #define FRAME_SKIP_FACTOR 0.05
  78
  79 /* maximum audio speed change to get correct sync */
  80 #define SAMPLE_CORRECTION_PERCENT_MAX 10
  81
  82 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
  83 #define AUDIO_DIFF_AVG_NB   20
  84
  85 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
  86 #define SAMPLE_ARRAY_SIZE (2*65536)
  87
  88 static int sws_flags = SWS_BICUBIC;
  89
  90 typedef struct PacketQueue {
  91     AVPacketList *first_pkt, *last_pkt;
  92     int nb_packets;
  93     int size;
  94     int abort_request;
  95     SDL_mutex *mutex;
  96     SDL_cond *cond;
  97 } PacketQueue;
  98
  99 #define VIDEO_PICTURE_QUEUE_SIZE 2
 100 #define SUBPICTURE_QUEUE_SIZE 4
 101
 102 typedef struct VideoPicture {
 103     double pts;                                  ///<presentation time stamp for this picture
 104     double target_clock;                         ///<av_gettime() time at which this should be displayed ideally
 105     int64_t pos;                                 ///<byte position in file
 106     SDL_Overlay *bmp;
 107     int width, height; /* source height & width */
 108     int allocated;
 109     enum PixelFormat pix_fmt;
 110
 111 #if CONFIG_AVFILTER
 112     AVFilterBufferRef *picref;
 113 #endif
 114 } VideoPicture;
 115
 116 typedef struct SubPicture {
 117     double pts; /* presentation time stamp for this picture */
 118     AVSubtitle sub;
 119 } SubPicture;
 120
 121 enum {
 122     AV_SYNC_AUDIO_MASTER, /* default choice */
 123     AV_SYNC_VIDEO_MASTER,
 124     AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
 125 };
 126
 127 typedef struct VideoState {
 128     SDL_Thread *parse_tid;
 129     SDL_Thread *video_tid;
 130     SDL_Thread *refresh_tid;
 131     AVInputFormat *iformat;
 132     int no_background;
 133     int abort_request;
 134     int paused;
 135     int last_paused;
 136     int seek_req;
 137     int seek_flags;
 138     int64_t seek_pos;
 139     int64_t seek_rel;
 140     int read_pause_return;
 141     AVFormatContext *ic;
 142     int dtg_active_format;
 143
 144     int audio_stream;
 145
 146     int av_sync_type;
 147     double external_clock; /* external clock base */
 148     int64_t external_clock_time;
 149
 150     double audio_clock;
 151     double audio_diff_cum; /* used for AV difference average computation */
 152     double audio_diff_avg_coef;
 153     double audio_diff_threshold;
 154     int audio_diff_avg_count;
 155     AVStream *audio_st;
 156     PacketQueue audioq;
 157     int audio_hw_buf_size;
 158     /* samples output by the codec. we reserve more space for avsync
 159        compensation */
 160     DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
 161     DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
 162     uint8_t *audio_buf;
 163     unsigned int audio_buf_size; /* in bytes */
 164     int audio_buf_index; /* in bytes */
 165     AVPacket audio_pkt_temp;
 166     AVPacket audio_pkt;
 167     enum AVSampleFormat audio_src_fmt;
 168     AVAudioConvert *reformat_ctx;
 169
 170     int show_audio; /* if true, display audio samples */
 171     int16_t sample_array[SAMPLE_ARRAY_SIZE];
 172     int sample_array_index;
 173     int last_i_start;
 174     RDFTContext *rdft;
 175     int rdft_bits;
 176     FFTSample *rdft_data;
 177     int xpos;
 178
 179     SDL_Thread *subtitle_tid;
 180     int subtitle_stream;
 181     int subtitle_stream_changed;
 182     AVStream *subtitle_st;
 183     PacketQueue subtitleq;
 184     SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
 185     int subpq_size, subpq_rindex, subpq_windex;
 186     SDL_mutex *subpq_mutex;
 187     SDL_cond *subpq_cond;
 188
 189     double frame_timer;
 190     double frame_last_pts;
 191     double frame_last_delay;
 192     double video_clock;                          ///<pts of last decoded frame / predicted pts of next decoded frame
 193     int video_stream;
 194     AVStream *video_st;
 195     PacketQueue videoq;
 196     double video_current_pts;                    ///<current displayed pts (different from video_clock if frame fifos are used)
 197     double video_current_pts_drift;              ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
 198     int64_t video_current_pos;                   ///<current displayed file pos
 199     VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
 200     int pictq_size, pictq_rindex, pictq_windex;
 201     SDL_mutex *pictq_mutex;
 202     SDL_cond *pictq_cond;
 203 #if !CONFIG_AVFILTER
 204     struct SwsContext *img_convert_ctx;
 205 #endif
 206
 207     //    QETimer *video_timer;
 208     char filename[1024];
 209     int width, height, xleft, ytop;
 210
 211     PtsCorrectionContext pts_ctx;
 212
 213 #if CONFIG_AVFILTER
 214     AVFilterContext *out_video_filter;          ///<the last filter in the video chain
 215 #endif
 216
 217     float skip_frames;
 218     float skip_frames_index;
 219     int refresh;
 220 } VideoState;
 221
 222 static void show_help(void);
 223 static int audio_write_get_buf_size(VideoState *is);
 224
 225 /* options specified by the user */
 226 static AVInputFormat *file_iformat;
 227 static const char *input_filename;
 228 static const char *window_title;
 229 static int fs_screen_width;
 230 static int fs_screen_height;
 231 static int screen_width = 0;
 232 static int screen_height = 0;
 233 static int frame_width = 0;
 234 static int frame_height = 0;
 235 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
 236 static int audio_disable;
 237 static int video_disable;
 238 static int wanted_stream[AVMEDIA_TYPE_NB]={
 239     [AVMEDIA_TYPE_AUDIO]=-1,
 240     [AVMEDIA_TYPE_VIDEO]=-1,
 241     [AVMEDIA_TYPE_SUBTITLE]=-1,
 242 };
 243 static int seek_by_bytes=-1;
 244 static int display_disable;
 245 static int show_status = 1;
 246 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
 247 static int64_t start_time = AV_NOPTS_VALUE;
 248 static int64_t duration = AV_NOPTS_VALUE;
 249 static int debug = 0;
 250 static int debug_mv = 0;
 251 static int step = 0;
 252 static int thread_count = 1;
 253 static int workaround_bugs = 1;
 254 static int fast = 0;
 255 static int genpts = 0;
 256 static int lowres = 0;
 257 static int idct = FF_IDCT_AUTO;
 258 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
 259 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
 260 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
 261 static int error_recognition = FF_ER_CAREFUL;
 262 static int error_concealment = 3;
 263 static int decoder_reorder_pts= -1;
 264 static int autoexit;
 265 static int exit_on_keydown;
 266 static int exit_on_mousedown;
 267 static int loop=1;
 268 static int framedrop=1;
 269
 270 static int rdftspeed=20;
 271 #if CONFIG_AVFILTER
 272 static char *vfilters = NULL;
 273 #endif
 274
 275 /* current context */
 276 static int is_full_screen;
 277 static VideoState *cur_stream;
 278 static int64_t audio_callback_time;
 279
 280 static AVPacket flush_pkt;
 281
 282 #define FF_ALLOC_EVENT   (SDL_USEREVENT)
 283 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
 284 #define FF_QUIT_EVENT    (SDL_USEREVENT + 2)
 285
 286 static SDL_Surface *screen;
 287
 288 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
 289
 290 /* packet queue handling */
 291 static void packet_queue_init(PacketQueue *q)
 292 {
 293     memset(q, 0, sizeof(PacketQueue));
 294     q->mutex = SDL_CreateMutex();
 295     q->cond = SDL_CreateCond();
 296     packet_queue_put(q, &flush_pkt);
 297 }
 298
 299 static void packet_queue_flush(PacketQueue *q)
 300 {
 301     AVPacketList *pkt, *pkt1;
 302
 303     SDL_LockMutex(q->mutex);
 304     for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
 305         pkt1 = pkt->next;
 306         av_free_packet(&pkt->pkt);
 307         av_freep(&pkt);
 308     }
 309     q->last_pkt = NULL;
 310     q->first_pkt = NULL;
 311     q->nb_packets = 0;
 312     q->size = 0;
 313     SDL_UnlockMutex(q->mutex);
 314 }
 315
 316 static void packet_queue_end(PacketQueue *q)
 317 {
 318     packet_queue_flush(q);
 319     SDL_DestroyMutex(q->mutex);
 320     SDL_DestroyCond(q->cond);
 321 }
 322
 323 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
 324 {
 325     AVPacketList *pkt1;
 326
 327     /* duplicate the packet */
 328     if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
 329         return -1;
 330
 331     pkt1 = av_malloc(sizeof(AVPacketList));
 332     if (!pkt1)
 333         return -1;
 334     pkt1->pkt = *pkt;
 335     pkt1->next = NULL;
 336
 337
 338     SDL_LockMutex(q->mutex);
 339
 340     if (!q->last_pkt)
 341
 342         q->first_pkt = pkt1;
 343     else
 344         q->last_pkt->next = pkt1;
 345     q->last_pkt = pkt1;
 346     q->nb_packets++;
 347     q->size += pkt1->pkt.size + sizeof(*pkt1);
 348     /* XXX: should duplicate packet data in DV case */
 349     SDL_CondSignal(q->cond);
 350
 351     SDL_UnlockMutex(q->mutex);
 352     return 0;
 353 }
 354
 355 static void packet_queue_abort(PacketQueue *q)
 356 {
 357     SDL_LockMutex(q->mutex);
 358
 359     q->abort_request = 1;
 360
 361     SDL_CondSignal(q->cond);
 362
 363     SDL_UnlockMutex(q->mutex);
 364 }
 365
 366 /* return < 0 if aborted, 0 if no packet and > 0 if packet.  */
 367 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
 368 {
 369     AVPacketList *pkt1;
 370     int ret;
 371
 372     SDL_LockMutex(q->mutex);
 373
 374     for(;;) {
 375         if (q->abort_request) {
 376             ret = -1;
 377             break;
 378         }
 379
 380         pkt1 = q->first_pkt;
 381         if (pkt1) {
 382             q->first_pkt = pkt1->next;
 383             if (!q->first_pkt)
 384                 q->last_pkt = NULL;
 385             q->nb_packets--;
 386             q->size -= pkt1->pkt.size + sizeof(*pkt1);
 387             *pkt = pkt1->pkt;
 388             av_free(pkt1);
 389             ret = 1;
 390             break;
 391         } else if (!block) {
 392             ret = 0;
 393             break;
 394         } else {
 395             SDL_CondWait(q->cond, q->mutex);
 396         }
 397     }
 398     SDL_UnlockMutex(q->mutex);
 399     return ret;
 400 }
 401
 402 static inline void fill_rectangle(SDL_Surface *screen,
 403                                   int x, int y, int w, int h, int color)
 404 {
 405     SDL_Rect rect;
 406     rect.x = x;
 407     rect.y = y;
 408     rect.w = w;
 409     rect.h = h;
 410     SDL_FillRect(screen, &rect, color);
 411 }
 412
 413 #if 0
 414 /* draw only the border of a rectangle */
 415 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
 416 {
 417     int w1, w2, h1, h2;
 418
 419     /* fill the background */
 420     w1 = x;
 421     if (w1 < 0)
 422         w1 = 0;
 423     w2 = s->width - (x + w);
 424     if (w2 < 0)
 425         w2 = 0;
 426     h1 = y;
 427     if (h1 < 0)
 428         h1 = 0;
 429     h2 = s->height - (y + h);
 430     if (h2 < 0)
 431         h2 = 0;
 432     fill_rectangle(screen,
 433                    s->xleft, s->ytop,
 434                    w1, s->height,
 435                    color);
 436     fill_rectangle(screen,
 437                    s->xleft + s->width - w2, s->ytop,
 438                    w2, s->height,
 439                    color);
 440     fill_rectangle(screen,
 441                    s->xleft + w1, s->ytop,
 442                    s->width - w1 - w2, h1,
 443                    color);
 444     fill_rectangle(screen,
 445                    s->xleft + w1, s->ytop + s->height - h2,
 446                    s->width - w1 - w2, h2,
 447                    color);
 448 }
 449 #endif
 450
 451 #define ALPHA_BLEND(a, oldp, newp, s)\
 452 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
 453
 454 #define RGBA_IN(r, g, b, a, s)\
 455 {\
 456     unsigned int v = ((const uint32_t *)(s))[0];\
 457     a = (v >> 24) & 0xff;\
 458     r = (v >> 16) & 0xff;\
 459     g = (v >> 8) & 0xff;\
 460     b = v & 0xff;\
 461 }
 462
 463 #define YUVA_IN(y, u, v, a, s, pal)\
 464 {\
 465     unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
 466     a = (val >> 24) & 0xff;\
 467     y = (val >> 16) & 0xff;\
 468     u = (val >> 8) & 0xff;\
 469     v = val & 0xff;\
 470 }
 471
 472 #define YUVA_OUT(d, y, u, v, a)\
 473 {\
 474     ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
 475 }
 476
 477
 478 #define BPP 1
 479
 480 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
 481 {
 482     int wrap, wrap3, width2, skip2;
 483     int y, u, v, a, u1, v1, a1, w, h;
 484     uint8_t *lum, *cb, *cr;
 485     const uint8_t *p;
 486     const uint32_t *pal;
 487     int dstx, dsty, dstw, dsth;
 488
 489     dstw = av_clip(rect->w, 0, imgw);
 490     dsth = av_clip(rect->h, 0, imgh);
 491     dstx = av_clip(rect->x, 0, imgw - dstw);
 492     dsty = av_clip(rect->y, 0, imgh - dsth);
 493     lum = dst->data[0] + dsty * dst->linesize[0];
 494     cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
 495     cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
 496
 497     width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
 498     skip2 = dstx >> 1;
 499     wrap = dst->linesize[0];
 500     wrap3 = rect->pict.linesize[0];
 501     p = rect->pict.data[0];
 502     pal = (const uint32_t *)rect->pict.data[1];  /* Now in YCrCb! */
 503
 504     if (dsty & 1) {
 505         lum += dstx;
 506         cb += skip2;
 507         cr += skip2;
 508
 509         if (dstx & 1) {
 510             YUVA_IN(y, u, v, a, p, pal);
 511             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 512             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
 513             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
 514             cb++;
 515             cr++;
 516             lum++;
 517             p += BPP;
 518         }
 519         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
 520             YUVA_IN(y, u, v, a, p, pal);
 521             u1 = u;
 522             v1 = v;
 523             a1 = a;
 524             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 525
 526             YUVA_IN(y, u, v, a, p + BPP, pal);
 527             u1 += u;
 528             v1 += v;
 529             a1 += a;
 530             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
 531             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
 532             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
 533             cb++;
 534             cr++;
 535             p += 2 * BPP;
 536             lum += 2;
 537         }
 538         if (w) {
 539             YUVA_IN(y, u, v, a, p, pal);
 540             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 541             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
 542             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
 543             p++;
 544             lum++;
 545         }
 546         p += wrap3 - dstw * BPP;
 547         lum += wrap - dstw - dstx;
 548         cb += dst->linesize[1] - width2 - skip2;
 549         cr += dst->linesize[2] - width2 - skip2;
 550     }
 551     for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
 552         lum += dstx;
 553         cb += skip2;
 554         cr += skip2;
 555
 556         if (dstx & 1) {
 557             YUVA_IN(y, u, v, a, p, pal);
 558             u1 = u;
 559             v1 = v;
 560             a1 = a;
 561             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 562             p += wrap3;
 563             lum += wrap;
 564             YUVA_IN(y, u, v, a, p, pal);
 565             u1 += u;
 566             v1 += v;
 567             a1 += a;
 568             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 569             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
 570             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
 571             cb++;
 572             cr++;
 573             p += -wrap3 + BPP;
 574             lum += -wrap + 1;
 575         }
 576         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
 577             YUVA_IN(y, u, v, a, p, pal);
 578             u1 = u;
 579             v1 = v;
 580             a1 = a;
 581             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 582
 583             YUVA_IN(y, u, v, a, p + BPP, pal);
 584             u1 += u;
 585             v1 += v;
 586             a1 += a;
 587             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
 588             p += wrap3;
 589             lum += wrap;
 590
 591             YUVA_IN(y, u, v, a, p, pal);
 592             u1 += u;
 593             v1 += v;
 594             a1 += a;
 595             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 596
 597             YUVA_IN(y, u, v, a, p + BPP, pal);
 598             u1 += u;
 599             v1 += v;
 600             a1 += a;
 601             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
 602
 603             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
 604             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
 605
 606             cb++;
 607             cr++;
 608             p += -wrap3 + 2 * BPP;
 609             lum += -wrap + 2;
 610         }
 611         if (w) {
 612             YUVA_IN(y, u, v, a, p, pal);
 613             u1 = u;
 614             v1 = v;
 615             a1 = a;
 616             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 617             p += wrap3;
 618             lum += wrap;
 619             YUVA_IN(y, u, v, a, p, pal);
 620             u1 += u;
 621             v1 += v;
 622             a1 += a;
 623             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 624             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
 625             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
 626             cb++;
 627             cr++;
 628             p += -wrap3 + BPP;
 629             lum += -wrap + 1;
 630         }
 631         p += wrap3 + (wrap3 - dstw * BPP);
 632         lum += wrap + (wrap - dstw - dstx);
 633         cb += dst->linesize[1] - width2 - skip2;
 634         cr += dst->linesize[2] - width2 - skip2;
 635     }
 636     /* handle odd height */
 637     if (h) {
 638         lum += dstx;
 639         cb += skip2;
 640         cr += skip2;
 641
 642         if (dstx & 1) {
 643             YUVA_IN(y, u, v, a, p, pal);
 644             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 645             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
 646             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
 647             cb++;
 648             cr++;
 649             lum++;
 650             p += BPP;
 651         }
 652         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
 653             YUVA_IN(y, u, v, a, p, pal);
 654             u1 = u;
 655             v1 = v;
 656             a1 = a;
 657             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 658
 659             YUVA_IN(y, u, v, a, p + BPP, pal);
 660             u1 += u;
 661             v1 += v;
 662             a1 += a;
 663             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
 664             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
 665             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
 666             cb++;
 667             cr++;
 668             p += 2 * BPP;
 669             lum += 2;
 670         }
 671         if (w) {
 672             YUVA_IN(y, u, v, a, p, pal);
 673             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 674             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
 675             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
 676         }
 677     }
 678 }
 679
 680 static void free_subpicture(SubPicture *sp)
 681 {
 682     avsubtitle_free(&sp->sub);
 683 }
 684
 685 static void video_image_display(VideoState *is)
 686 {
 687     VideoPicture *vp;
 688     SubPicture *sp;
 689     AVPicture pict;
 690     float aspect_ratio;
 691     int width, height, x, y;
 692     SDL_Rect rect;
 693     int i;
 694
 695     vp = &is->pictq[is->pictq_rindex];
 696     if (vp->bmp) {
 697 #if CONFIG_AVFILTER
 698          if (vp->picref->video->pixel_aspect.num == 0)
 699              aspect_ratio = 0;
 700          else
 701              aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
 702 #else
 703
 704         /* XXX: use variable in the frame */
 705         if (is->video_st->sample_aspect_ratio.num)
 706             aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
 707         else if (is->video_st->codec->sample_aspect_ratio.num)
 708             aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
 709         else
 710             aspect_ratio = 0;
 711 #endif
 712         if (aspect_ratio <= 0.0)
 713             aspect_ratio = 1.0;
 714         aspect_ratio *= (float)vp->width / (float)vp->height;
 715         /* if an active format is indicated, then it overrides the
 716            mpeg format */
 717 #if 0
 718         if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
 719             is->dtg_active_format = is->video_st->codec->dtg_active_format;
 720             printf("dtg_active_format=%d\n", is->dtg_active_format);
 721         }
 722 #endif
 723 #if 0
 724         switch(is->video_st->codec->dtg_active_format) {
 725         case FF_DTG_AFD_SAME:
 726         default:
 727             /* nothing to do */
 728             break;
 729         case FF_DTG_AFD_4_3:
 730             aspect_ratio = 4.0 / 3.0;
 731             break;
 732         case FF_DTG_AFD_16_9:
 733             aspect_ratio = 16.0 / 9.0;
 734             break;
 735         case FF_DTG_AFD_14_9:
 736             aspect_ratio = 14.0 / 9.0;
 737             break;
 738         case FF_DTG_AFD_4_3_SP_14_9:
 739             aspect_ratio = 14.0 / 9.0;
 740             break;
 741         case FF_DTG_AFD_16_9_SP_14_9:
 742             aspect_ratio = 14.0 / 9.0;
 743             break;
 744         case FF_DTG_AFD_SP_4_3:
 745             aspect_ratio = 4.0 / 3.0;
 746             break;
 747         }
 748 #endif
 749
 750         if (is->subtitle_st)
 751         {
 752             if (is->subpq_size > 0)
 753             {
 754                 sp = &is->subpq[is->subpq_rindex];
 755
 756                 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
 757                 {
 758                     SDL_LockYUVOverlay (vp->bmp);
 759
 760                     pict.data[0] = vp->bmp->pixels[0];
 761                     pict.data[1] = vp->bmp->pixels[2];
 762                     pict.data[2] = vp->bmp->pixels[1];
 763
 764                     pict.linesize[0] = vp->bmp->pitches[0];
 765                     pict.linesize[1] = vp->bmp->pitches[2];
 766                     pict.linesize[2] = vp->bmp->pitches[1];
 767
 768                     for (i = 0; i < sp->sub.num_rects; i++)
 769                         blend_subrect(&pict, sp->sub.rects[i],
 770                                       vp->bmp->w, vp->bmp->h);
 771
 772                     SDL_UnlockYUVOverlay (vp->bmp);
 773                 }
 774             }
 775         }
 776
 777
 778         /* XXX: we suppose the screen has a 1.0 pixel ratio */
 779         height = is->height;
 780         width = ((int)rint(height * aspect_ratio)) & ~1;
 781         if (width > is->width) {
 782             width = is->width;
 783             height = ((int)rint(width / aspect_ratio)) & ~1;
 784         }
 785         x = (is->width - width) / 2;
 786         y = (is->height - height) / 2;
 787         if (!is->no_background) {
 788             /* fill the background */
 789             //            fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
 790         } else {
 791             is->no_background = 0;
 792         }
 793         rect.x = is->xleft + x;
 794         rect.y = is->ytop  + y;
 795         rect.w = width;
 796         rect.h = height;
 797         SDL_DisplayYUVOverlay(vp->bmp, &rect);
 798     } else {
 799 #if 0
 800         fill_rectangle(screen,
 801                        is->xleft, is->ytop, is->width, is->height,
 802                        QERGB(0x00, 0x00, 0x00));
 803 #endif
 804     }
 805 }
 806
 807 static inline int compute_mod(int a, int b)
 808 {
 809     a = a % b;
 810     if (a >= 0)
 811         return a;
 812     else
 813         return a + b;
 814 }
 815
 816 static void video_audio_display(VideoState *s)
 817 {
 818     int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
 819     int ch, channels, h, h2, bgcolor, fgcolor;
 820     int16_t time_diff;
 821     int rdft_bits, nb_freq;
 822
 823     for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
 824         ;
 825     nb_freq= 1<<(rdft_bits-1);
 826
 827     /* compute display index : center on currently output samples */
 828     channels = s->audio_st->codec->channels;
 829     nb_display_channels = channels;
 830     if (!s->paused) {
 831         int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
 832         n = 2 * channels;
 833         delay = audio_write_get_buf_size(s);
 834         delay /= n;
 835
 836         /* to be more precise, we take into account the time spent since
 837            the last buffer computation */
 838         if (audio_callback_time) {
 839             time_diff = av_gettime() - audio_callback_time;
 840             delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
 841         }
 842
 843         delay += 2*data_used;
 844         if (delay < data_used)
 845             delay = data_used;
 846
 847         i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
 848         if(s->show_audio==1){
 849             h= INT_MIN;
 850             for(i=0; i<1000; i+=channels){
 851                 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
 852                 int a= s->sample_array[idx];
 853                 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
 854                 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
 855                 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
 856                 int score= a-d;
 857                 if(h<score && (b^c)<0){
 858                     h= score;
 859                     i_start= idx;
 860                 }
 861             }
 862         }
 863
 864         s->last_i_start = i_start;
 865     } else {
 866         i_start = s->last_i_start;
 867     }
 868
 869     bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
 870     if(s->show_audio==1){
 871         fill_rectangle(screen,
 872                        s->xleft, s->ytop, s->width, s->height,
 873                        bgcolor);
 874
 875         fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
 876
 877         /* total height for one channel */
 878         h = s->height / nb_display_channels;
 879         /* graph height / 2 */
 880         h2 = (h * 9) / 20;
 881         for(ch = 0;ch < nb_display_channels; ch++) {
 882             i = i_start + ch;
 883             y1 = s->ytop + ch * h + (h / 2); /* position of center line */
 884             for(x = 0; x < s->width; x++) {
 885                 y = (s->sample_array[i] * h2) >> 15;
 886                 if (y < 0) {
 887                     y = -y;
 888                     ys = y1 - y;
 889                 } else {
 890                     ys = y1;
 891                 }
 892                 fill_rectangle(screen,
 893                                s->xleft + x, ys, 1, y,
 894                                fgcolor);
 895                 i += channels;
 896                 if (i >= SAMPLE_ARRAY_SIZE)
 897                     i -= SAMPLE_ARRAY_SIZE;
 898             }
 899         }
 900
 901         fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
 902
 903         for(ch = 1;ch < nb_display_channels; ch++) {
 904             y = s->ytop + ch * h;
 905             fill_rectangle(screen,
 906                            s->xleft, y, s->width, 1,
 907                            fgcolor);
 908         }
 909         SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
 910     }else{
 911         nb_display_channels= FFMIN(nb_display_channels, 2);
 912         if(rdft_bits != s->rdft_bits){
 913             av_rdft_end(s->rdft);
 914             av_free(s->rdft_data);
 915             s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
 916             s->rdft_bits= rdft_bits;
 917             s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
 918         }
 919         {
 920             FFTSample *data[2];
 921             for(ch = 0;ch < nb_display_channels; ch++) {
 922                 data[ch] = s->rdft_data + 2*nb_freq*ch;
 923                 i = i_start + ch;
 924                 for(x = 0; x < 2*nb_freq; x++) {
 925                     double w= (x-nb_freq)*(1.0/nb_freq);
 926                     data[ch][x]= s->sample_array[i]*(1.0-w*w);
 927                     i += channels;
 928                     if (i >= SAMPLE_ARRAY_SIZE)
 929                         i -= SAMPLE_ARRAY_SIZE;
 930                 }
 931                 av_rdft_calc(s->rdft, data[ch]);
 932             }
 933             //least efficient way to do this, we should of course directly access it but its more than fast enough
 934             for(y=0; y<s->height; y++){
 935                 double w= 1/sqrt(nb_freq);
 936                 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]));
 937                 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
 938                        + data[1][2*y+1]*data[1][2*y+1])) : a;
 939                 a= FFMIN(a,255);
 940                 b= FFMIN(b,255);
 941                 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
 942
 943                 fill_rectangle(screen,
 944                             s->xpos, s->height-y, 1, 1,
 945                             fgcolor);
 946             }
 947         }
 948         SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
 949         s->xpos++;
 950         if(s->xpos >= s->width)
 951             s->xpos= s->xleft;
 952     }
 953 }
 954
 955 static int video_open(VideoState *is){
 956     int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
 957     int w,h;
 958
 959     if(is_full_screen) flags |= SDL_FULLSCREEN;
 960     else               flags |= SDL_RESIZABLE;
 961
 962     if (is_full_screen && fs_screen_width) {
 963         w = fs_screen_width;
 964         h = fs_screen_height;
 965     } else if(!is_full_screen && screen_width){
 966         w = screen_width;
 967         h = screen_height;
 968 #if CONFIG_AVFILTER
 969     }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
 970         w = is->out_video_filter->inputs[0]->w;
 971         h = is->out_video_filter->inputs[0]->h;
 972 #else
 973     }else if (is->video_st && is->video_st->codec->width){
 974         w = is->video_st->codec->width;
 975         h = is->video_st->codec->height;
 976 #endif
 977     } else {
 978         w = 640;
 979         h = 480;
 980     }
 981     if(screen && is->width == screen->w && screen->w == w
 982        && is->height== screen->h && screen->h == h)
 983         return 0;
 984
 985 #ifndef __APPLE__
 986     screen = SDL_SetVideoMode(w, h, 0, flags);
 987 #else
 988     /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
 989     screen = SDL_SetVideoMode(w, h, 24, flags);
 990 #endif
 991     if (!screen) {
 992         fprintf(stderr, "SDL: could not set video mode - exiting\n");
 993         return -1;
 994     }
 995     if (!window_title)
 996         window_title = input_filename;
 997     SDL_WM_SetCaption(window_title, window_title);
 998
 999     is->width = screen->w;
1000     is->height = screen->h;
1001
1002     return 0;
1003 }
1004
1005 /* display the current picture, if any */
1006 static void video_display(VideoState *is)
1007 {
1008     if(!screen)
1009         video_open(cur_stream);
1010     if (is->audio_st && is->show_audio)
1011         video_audio_display(is);
1012     else if (is->video_st)
1013         video_image_display(is);
1014 }
1015
1016 static int refresh_thread(void *opaque)
1017 {
1018     VideoState *is= opaque;
1019     while(!is->abort_request){
1020         SDL_Event event;
1021         event.type = FF_REFRESH_EVENT;
1022         event.user.data1 = opaque;
1023         if(!is->refresh){
1024             is->refresh=1;
1025             SDL_PushEvent(&event);
1026         }
1027         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
1028     }
1029     return 0;
1030 }
1031
1032 /* get the current audio clock value */
1033 static double get_audio_clock(VideoState *is)
1034 {
1035     double pts;
1036     int hw_buf_size, bytes_per_sec;
1037     pts = is->audio_clock;
1038     hw_buf_size = audio_write_get_buf_size(is);
1039     bytes_per_sec = 0;
1040     if (is->audio_st) {
1041         bytes_per_sec = is->audio_st->codec->sample_rate *
1042             2 * is->audio_st->codec->channels;
1043     }
1044     if (bytes_per_sec)
1045         pts -= (double)hw_buf_size / bytes_per_sec;
1046     return pts;
1047 }
1048
1049 /* get the current video clock value */
1050 static double get_video_clock(VideoState *is)
1051 {
1052     if (is->paused) {
1053         return is->video_current_pts;
1054     } else {
1055         return is->video_current_pts_drift + av_gettime() / 1000000.0;
1056     }
1057 }
1058
1059 /* get the current external clock value */
1060 static double get_external_clock(VideoState *is)
1061 {
1062     int64_t ti;
1063     ti = av_gettime();
1064     return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1065 }
1066
1067 /* get the current master clock value */
1068 static double get_master_clock(VideoState *is)
1069 {
1070     double val;
1071
1072     if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1073         if (is->video_st)
1074             val = get_video_clock(is);
1075         else
1076             val = get_audio_clock(is);
1077     } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1078         if (is->audio_st)
1079             val = get_audio_clock(is);
1080         else
1081             val = get_video_clock(is);
1082     } else {
1083         val = get_external_clock(is);
1084     }
1085     return val;
1086 }
1087
1088 /* seek in the stream */
1089 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1090 {
1091     if (!is->seek_req) {
1092         is->seek_pos = pos;
1093         is->seek_rel = rel;
1094         is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1095         if (seek_by_bytes)
1096             is->seek_flags |= AVSEEK_FLAG_BYTE;
1097         is->seek_req = 1;
1098     }
1099 }
1100
1101 /* pause or resume the video */
1102 static void stream_pause(VideoState *is)
1103 {
1104     if (is->paused) {
1105         is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1106         if(is->read_pause_return != AVERROR(ENOSYS)){
1107             is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1108         }
1109         is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1110     }
1111     is->paused = !is->paused;
1112 }
1113
1114 static double compute_target_time(double frame_current_pts, VideoState *is)
1115 {
1116     double delay, sync_threshold, diff;
1117
1118     /* compute nominal delay */
1119     delay = frame_current_pts - is->frame_last_pts;
1120     if (delay <= 0 || delay >= 10.0) {
1121         /* if incorrect delay, use previous one */
1122         delay = is->frame_last_delay;
1123     } else {
1124         is->frame_last_delay = delay;
1125     }
1126     is->frame_last_pts = frame_current_pts;
1127
1128     /* update delay to follow master synchronisation source */
1129     if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1130          is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1131         /* if video is slave, we try to correct big delays by
1132            duplicating or deleting a frame */
1133         diff = get_video_clock(is) - get_master_clock(is);
1134
1135         /* skip or repeat frame. We take into account the
1136            delay to compute the threshold. I still don't know
1137            if it is the best guess */
1138         sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1139         if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1140             if (diff <= -sync_threshold)
1141                 delay = 0;
1142             else if (diff >= sync_threshold)
1143                 delay = 2 * delay;
1144         }
1145     }
1146     is->frame_timer += delay;
1147 #if defined(DEBUG_SYNC)
1148     printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1149             delay, actual_delay, frame_current_pts, -diff);
1150 #endif
1151
1152     return is->frame_timer;
1153 }
1154
1155 /* called to display each frame */
1156 static void video_refresh_timer(void *opaque)
1157 {
1158     VideoState *is = opaque;
1159     VideoPicture *vp;
1160
1161     SubPicture *sp, *sp2;
1162
1163     if (is->video_st) {
1164 retry:
1165         if (is->pictq_size == 0) {
1166             //nothing to do, no picture to display in the que
1167         } else {
1168             double time= av_gettime()/1000000.0;
1169             double next_target;
1170             /* dequeue the picture */
1171             vp = &is->pictq[is->pictq_rindex];
1172
1173             if(time < vp->target_clock)
1174                 return;
1175             /* update current video pts */
1176             is->video_current_pts = vp->pts;
1177             is->video_current_pts_drift = is->video_current_pts - time;
1178             is->video_current_pos = vp->pos;
1179             if(is->pictq_size > 1){
1180                 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1181                 assert(nextvp->target_clock >= vp->target_clock);
1182                 next_target= nextvp->target_clock;
1183             }else{
1184                 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1185             }
1186             if(framedrop && time > next_target){
1187                 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1188                 if(is->pictq_size > 1 || time > next_target + 0.5){
1189                     /* update queue size and signal for next picture */
1190                     if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1191                         is->pictq_rindex = 0;
1192
1193                     SDL_LockMutex(is->pictq_mutex);
1194                     is->pictq_size--;
1195                     SDL_CondSignal(is->pictq_cond);
1196                     SDL_UnlockMutex(is->pictq_mutex);
1197                     goto retry;
1198                 }
1199             }
1200
1201             if(is->subtitle_st) {
1202                 if (is->subtitle_stream_changed) {
1203                     SDL_LockMutex(is->subpq_mutex);
1204
1205                     while (is->subpq_size) {
1206                         free_subpicture(&is->subpq[is->subpq_rindex]);
1207
1208                         /* update queue size and signal for next picture */
1209                         if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1210                             is->subpq_rindex = 0;
1211
1212                         is->subpq_size--;
1213                     }
1214                     is->subtitle_stream_changed = 0;
1215
1216                     SDL_CondSignal(is->subpq_cond);
1217                     SDL_UnlockMutex(is->subpq_mutex);
1218                 } else {
1219                     if (is->subpq_size > 0) {
1220                         sp = &is->subpq[is->subpq_rindex];
1221
1222                         if (is->subpq_size > 1)
1223                             sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1224                         else
1225                             sp2 = NULL;
1226
1227                         if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1228                                 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1229                         {
1230                             free_subpicture(sp);
1231
1232                             /* update queue size and signal for next picture */
1233                             if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1234                                 is->subpq_rindex = 0;
1235
1236                             SDL_LockMutex(is->subpq_mutex);
1237                             is->subpq_size--;
1238                             SDL_CondSignal(is->subpq_cond);
1239                             SDL_UnlockMutex(is->subpq_mutex);
1240                         }
1241                     }
1242                 }
1243             }
1244
1245             /* display picture */
1246             if (!display_disable)
1247                 video_display(is);
1248
1249             /* update queue size and signal for next picture */
1250             if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1251                 is->pictq_rindex = 0;
1252
1253             SDL_LockMutex(is->pictq_mutex);
1254             is->pictq_size--;
1255             SDL_CondSignal(is->pictq_cond);
1256             SDL_UnlockMutex(is->pictq_mutex);
1257         }
1258     } else if (is->audio_st) {
1259         /* draw the next audio frame */
1260
1261         /* if only audio stream, then display the audio bars (better
1262            than nothing, just to test the implementation */
1263
1264         /* display picture */
1265         if (!display_disable)
1266             video_display(is);
1267     }
1268     if (show_status) {
1269         static int64_t last_time;
1270         int64_t cur_time;
1271         int aqsize, vqsize, sqsize;
1272         double av_diff;
1273
1274         cur_time = av_gettime();
1275         if (!last_time || (cur_time - last_time) >= 30000) {
1276             aqsize = 0;
1277             vqsize = 0;
1278             sqsize = 0;
1279             if (is->audio_st)
1280                 aqsize = is->audioq.size;
1281             if (is->video_st)
1282                 vqsize = is->videoq.size;
1283             if (is->subtitle_st)
1284                 sqsize = is->subtitleq.size;
1285             av_diff = 0;
1286             if (is->audio_st && is->video_st)
1287                 av_diff = get_audio_clock(is) - get_video_clock(is);
1288             printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64"   \r",
1289                    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);
1290             fflush(stdout);
1291             last_time = cur_time;
1292         }
1293     }
1294 }
1295
1296 static void stream_close(VideoState *is)
1297 {
1298     VideoPicture *vp;
1299     int i;
1300     /* XXX: use a special url_shutdown call to abort parse cleanly */
1301     is->abort_request = 1;
1302     SDL_WaitThread(is->parse_tid, NULL);
1303     SDL_WaitThread(is->refresh_tid, NULL);
1304
1305     /* free all pictures */
1306     for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1307         vp = &is->pictq[i];
1308 #if CONFIG_AVFILTER
1309         if (vp->picref) {
1310             avfilter_unref_buffer(vp->picref);
1311             vp->picref = NULL;
1312         }
1313 #endif
1314         if (vp->bmp) {
1315             SDL_FreeYUVOverlay(vp->bmp);
1316             vp->bmp = NULL;
1317         }
1318     }
1319     SDL_DestroyMutex(is->pictq_mutex);
1320     SDL_DestroyCond(is->pictq_cond);
1321     SDL_DestroyMutex(is->subpq_mutex);
1322     SDL_DestroyCond(is->subpq_cond);
1323 #if !CONFIG_AVFILTER
1324     if (is->img_convert_ctx)
1325         sws_freeContext(is->img_convert_ctx);
1326 #endif
1327     av_free(is);
1328 }
1329
1330 static void do_exit(void)
1331 {
1332     if (cur_stream) {
1333         stream_close(cur_stream);
1334         cur_stream = NULL;
1335     }
1336     uninit_opts();
1337 #if CONFIG_AVFILTER
1338     avfilter_uninit();
1339 #endif
1340     if (show_status)
1341         printf("\n");
1342     SDL_Quit();
1343     av_log(NULL, AV_LOG_QUIET, "");
1344     exit(0);
1345 }
1346
1347 /* allocate a picture (needs to do that in main thread to avoid
1348    potential locking problems */
1349 static void alloc_picture(void *opaque)
1350 {
1351     VideoState *is = opaque;
1352     VideoPicture *vp;
1353
1354     vp = &is->pictq[is->pictq_windex];
1355
1356     if (vp->bmp)
1357         SDL_FreeYUVOverlay(vp->bmp);
1358
1359 #if CONFIG_AVFILTER
1360     if (vp->picref)
1361         avfilter_unref_buffer(vp->picref);
1362     vp->picref = NULL;
1363
1364     vp->width   = is->out_video_filter->inputs[0]->w;
1365     vp->height  = is->out_video_filter->inputs[0]->h;
1366     vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1367 #else
1368     vp->width   = is->video_st->codec->width;
1369     vp->height  = is->video_st->codec->height;
1370     vp->pix_fmt = is->video_st->codec->pix_fmt;
1371 #endif
1372
1373     vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1374                                    SDL_YV12_OVERLAY,
1375                                    screen);
1376     if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1377         /* SDL allocates a buffer smaller than requested if the video
1378          * overlay hardware is unable to support the requested size. */
1379         fprintf(stderr, "Error: the video system does not support an image\n"
1380                         "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1381                         "to reduce the image size.\n", vp->width, vp->height );
1382         do_exit();
1383     }
1384
1385     SDL_LockMutex(is->pictq_mutex);
1386     vp->allocated = 1;
1387     SDL_CondSignal(is->pictq_cond);
1388     SDL_UnlockMutex(is->pictq_mutex);
1389 }
1390
1391 /**
1392  *
1393  * @param pts the dts of the pkt / pts of the frame and guessed if not known
1394  */
1395 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1396 {
1397     VideoPicture *vp;
1398     int dst_pix_fmt;
1399 #if CONFIG_AVFILTER
1400     AVPicture pict_src;
1401 #endif
1402     /* wait until we have space to put a new picture */
1403     SDL_LockMutex(is->pictq_mutex);
1404
1405     if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1406         is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1407
1408     while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1409            !is->videoq.abort_request) {
1410         SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1411     }
1412     SDL_UnlockMutex(is->pictq_mutex);
1413
1414     if (is->videoq.abort_request)
1415         return -1;
1416
1417     vp = &is->pictq[is->pictq_windex];
1418
1419     /* alloc or resize hardware picture buffer */
1420     if (!vp->bmp ||
1421 #if CONFIG_AVFILTER
1422         vp->width  != is->out_video_filter->inputs[0]->w ||
1423         vp->height != is->out_video_filter->inputs[0]->h) {
1424 #else
1425         vp->width != is->video_st->codec->width ||
1426         vp->height != is->video_st->codec->height) {
1427 #endif
1428         SDL_Event event;
1429
1430         vp->allocated = 0;
1431
1432         /* the allocation must be done in the main thread to avoid
1433            locking problems */
1434         event.type = FF_ALLOC_EVENT;
1435         event.user.data1 = is;
1436         SDL_PushEvent(&event);
1437
1438         /* wait until the picture is allocated */
1439         SDL_LockMutex(is->pictq_mutex);
1440         while (!vp->allocated && !is->videoq.abort_request) {
1441             SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1442         }
1443         SDL_UnlockMutex(is->pictq_mutex);
1444
1445         if (is->videoq.abort_request)
1446             return -1;
1447     }
1448
1449     /* if the frame is not skipped, then display it */
1450     if (vp->bmp) {
1451         AVPicture pict;
1452 #if CONFIG_AVFILTER
1453         if(vp->picref)
1454             avfilter_unref_buffer(vp->picref);
1455         vp->picref = src_frame->opaque;
1456 #endif
1457
1458         /* get a pointer on the bitmap */
1459         SDL_LockYUVOverlay (vp->bmp);
1460
1461         dst_pix_fmt = PIX_FMT_YUV420P;
1462         memset(&pict,0,sizeof(AVPicture));
1463         pict.data[0] = vp->bmp->pixels[0];
1464         pict.data[1] = vp->bmp->pixels[2];
1465         pict.data[2] = vp->bmp->pixels[1];
1466
1467         pict.linesize[0] = vp->bmp->pitches[0];
1468         pict.linesize[1] = vp->bmp->pitches[2];
1469         pict.linesize[2] = vp->bmp->pitches[1];
1470
1471 #if CONFIG_AVFILTER
1472         pict_src.data[0] = src_frame->data[0];
1473         pict_src.data[1] = src_frame->data[1];
1474         pict_src.data[2] = src_frame->data[2];
1475
1476         pict_src.linesize[0] = src_frame->linesize[0];
1477         pict_src.linesize[1] = src_frame->linesize[1];
1478         pict_src.linesize[2] = src_frame->linesize[2];
1479
1480         //FIXME use direct rendering
1481         av_picture_copy(&pict, &pict_src,
1482                         vp->pix_fmt, vp->width, vp->height);
1483 #else
1484         sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1485         is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1486             vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1487             dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1488         if (is->img_convert_ctx == NULL) {
1489             fprintf(stderr, "Cannot initialize the conversion context\n");
1490             exit(1);
1491         }
1492         sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1493                   0, vp->height, pict.data, pict.linesize);
1494 #endif
1495         /* update the bitmap content */
1496         SDL_UnlockYUVOverlay(vp->bmp);
1497
1498         vp->pts = pts;
1499         vp->pos = pos;
1500
1501         /* now we can update the picture count */
1502         if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1503             is->pictq_windex = 0;
1504         SDL_LockMutex(is->pictq_mutex);
1505         vp->target_clock= compute_target_time(vp->pts, is);
1506
1507         is->pictq_size++;
1508         SDL_UnlockMutex(is->pictq_mutex);
1509     }
1510     return 0;
1511 }
1512
1513 /**
1514  * compute the exact PTS for the picture if it is omitted in the stream
1515  * @param pts1 the dts of the pkt / pts of the frame
1516  */
1517 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1518 {
1519     double frame_delay, pts;
1520
1521     pts = pts1;
1522
1523     if (pts != 0) {
1524         /* update video clock with pts, if present */
1525         is->video_clock = pts;
1526     } else {
1527         pts = is->video_clock;
1528     }
1529     /* update video clock for next frame */
1530     frame_delay = av_q2d(is->video_st->codec->time_base);
1531     /* for MPEG2, the frame can be repeated, so we update the
1532        clock accordingly */
1533     frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1534     is->video_clock += frame_delay;
1535
1536 #if defined(DEBUG_SYNC) && 0
1537     printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1538            av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1539 #endif
1540     return queue_picture(is, src_frame, pts, pos);
1541 }
1542
1543 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1544 {
1545     int len1, got_picture, i;
1546
1547     if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1548         return -1;
1549
1550     if (pkt->data == flush_pkt.data) {
1551         avcodec_flush_buffers(is->video_st->codec);
1552
1553         SDL_LockMutex(is->pictq_mutex);
1554         //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1555         for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1556             is->pictq[i].target_clock= 0;
1557         }
1558         while (is->pictq_size && !is->videoq.abort_request) {
1559             SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1560         }
1561         is->video_current_pos = -1;
1562         SDL_UnlockMutex(is->pictq_mutex);
1563
1564         init_pts_correction(&is->pts_ctx);
1565         is->frame_last_pts = AV_NOPTS_VALUE;
1566         is->frame_last_delay = 0;
1567         is->frame_timer = (double)av_gettime() / 1000000.0;
1568         is->skip_frames = 1;
1569         is->skip_frames_index = 0;
1570         return 0;
1571     }
1572
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->pkt_pts, pkt->dts);
1580         } else if (decoder_reorder_pts) {
1581             *pts = frame->pkt_pts;
1582         } else {
1583             *pts = pkt->dts;
1584         }
1585
1586         if (*pts == AV_NOPTS_VALUE) {
1587             *pts = 0;
1588         }
1589
1590         is->skip_frames_index += 1;
1591         if(is->skip_frames_index >= is->skip_frames){
1592             is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1593             return 1;
1594         }
1595
1596     }
1597     return 0;
1598 }
1599
1600 #if CONFIG_AVFILTER
1601 typedef struct {
1602     VideoState *is;
1603     AVFrame *frame;
1604     int use_dr1;
1605 } FilterPriv;
1606
1607 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1608 {
1609     AVFilterContext *ctx = codec->opaque;
1610     AVFilterBufferRef  *ref;
1611     int perms = AV_PERM_WRITE;
1612     int i, w, h, stride[4];
1613     unsigned edge;
1614
1615     if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1616         perms |= AV_PERM_NEG_LINESIZES;
1617
1618     if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1619         if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1620         if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1621         if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1622     }
1623     if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1624
1625     w = codec->width;
1626     h = codec->height;
1627     avcodec_align_dimensions2(codec, &w, &h, stride);
1628     edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1629     w += edge << 1;
1630     h += edge << 1;
1631
1632     if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1633         return -1;
1634
1635     ref->video->w = codec->width;
1636     ref->video->h = codec->height;
1637     for(i = 0; i < 4; i ++) {
1638         unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1639         unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1640
1641         if (ref->data[i]) {
1642             ref->data[i]    += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1643         }
1644         pic->data[i]     = ref->data[i];
1645         pic->linesize[i] = ref->linesize[i];
1646     }
1647     pic->opaque = ref;
1648     pic->age    = INT_MAX;
1649     pic->type   = FF_BUFFER_TYPE_USER;
1650     pic->reordered_opaque = codec->reordered_opaque;
1651     if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1652     else           pic->pkt_pts = AV_NOPTS_VALUE;
1653     return 0;
1654 }
1655
1656 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1657 {
1658     memset(pic->data, 0, sizeof(pic->data));
1659     avfilter_unref_buffer(pic->opaque);
1660 }
1661
1662 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1663 {
1664     AVFilterBufferRef *ref = pic->opaque;
1665
1666     if (pic->data[0] == NULL) {
1667         pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1668         return codec->get_buffer(codec, pic);
1669     }
1670
1671     if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1672         (codec->pix_fmt != ref->format)) {
1673         av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1674         return -1;
1675     }
1676
1677     pic->reordered_opaque = codec->reordered_opaque;
1678     if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1679     else           pic->pkt_pts = AV_NOPTS_VALUE;
1680     return 0;
1681 }
1682
1683 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1684 {
1685     FilterPriv *priv = ctx->priv;
1686     AVCodecContext *codec;
1687     if(!opaque) return -1;
1688
1689     priv->is = opaque;
1690     codec    = priv->is->video_st->codec;
1691     codec->opaque = ctx;
1692     if(codec->codec->capabilities & CODEC_CAP_DR1) {
1693         priv->use_dr1 = 1;
1694         codec->get_buffer     = input_get_buffer;
1695         codec->release_buffer = input_release_buffer;
1696         codec->reget_buffer   = input_reget_buffer;
1697     }
1698
1699     priv->frame = avcodec_alloc_frame();
1700
1701     return 0;
1702 }
1703
1704 static void input_uninit(AVFilterContext *ctx)
1705 {
1706     FilterPriv *priv = ctx->priv;
1707     av_free(priv->frame);
1708 }
1709
1710 static int input_request_frame(AVFilterLink *link)
1711 {
1712     FilterPriv *priv = link->src->priv;
1713     AVFilterBufferRef *picref;
1714     int64_t pts = 0;
1715     AVPacket pkt;
1716     int ret;
1717
1718     while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1719         av_free_packet(&pkt);
1720     if (ret < 0)
1721         return -1;
1722
1723     if(priv->use_dr1) {
1724         picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1725     } else {
1726         picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1727         av_image_copy(picref->data, picref->linesize,
1728                       priv->frame->data, priv->frame->linesize,
1729                       picref->format, link->w, link->h);
1730     }
1731     av_free_packet(&pkt);
1732
1733     picref->pts = pts;
1734     picref->pos = pkt.pos;
1735     picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1736     avfilter_start_frame(link, picref);
1737     avfilter_draw_slice(link, 0, link->h, 1);
1738     avfilter_end_frame(link);
1739
1740     return 0;
1741 }
1742
1743 static int input_query_formats(AVFilterContext *ctx)
1744 {
1745     FilterPriv *priv = ctx->priv;
1746     enum PixelFormat pix_fmts[] = {
1747         priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1748     };
1749
1750     avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1751     return 0;
1752 }
1753
1754 static int input_config_props(AVFilterLink *link)
1755 {
1756     FilterPriv *priv  = link->src->priv;
1757     AVCodecContext *c = priv->is->video_st->codec;
1758
1759     link->w = c->width;
1760     link->h = c->height;
1761     link->time_base = priv->is->video_st->time_base;
1762
1763     return 0;
1764 }
1765
1766 static AVFilter input_filter =
1767 {
1768     .name      = "ffplay_input",
1769
1770     .priv_size = sizeof(FilterPriv),
1771
1772     .init      = input_init,
1773     .uninit    = input_uninit,
1774
1775     .query_formats = input_query_formats,
1776
1777     .inputs    = (AVFilterPad[]) {{ .name = NULL }},
1778     .outputs   = (AVFilterPad[]) {{ .name = "default",
1779                                     .type = AVMEDIA_TYPE_VIDEO,
1780                                     .request_frame = input_request_frame,
1781                                     .config_props  = input_config_props, },
1782                                   { .name = NULL }},
1783 };
1784
1785 #endif  /* CONFIG_AVFILTER */
1786
1787 static int video_thread(void *arg)
1788 {
1789     VideoState *is = arg;
1790     AVFrame *frame= avcodec_alloc_frame();
1791     int64_t pts_int;
1792     double pts;
1793     int ret;
1794
1795 #if CONFIG_AVFILTER
1796     int64_t pos;
1797     char sws_flags_str[128];
1798     FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1799     AVFilterContext *filt_src = NULL, *filt_out = NULL;
1800     AVFilterGraph *graph = avfilter_graph_alloc();
1801     snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1802     graph->scale_sws_opts = av_strdup(sws_flags_str);
1803
1804     if (avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1805                                      NULL, is, graph) < 0)
1806         goto the_end;
1807     if (avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1808                                      NULL, &ffsink_ctx, graph) < 0)
1809         goto the_end;
1810
1811     if(vfilters) {
1812         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1813         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
1814
1815         outputs->name    = av_strdup("in");
1816         outputs->filter_ctx = filt_src;
1817         outputs->pad_idx = 0;
1818         outputs->next    = NULL;
1819
1820         inputs->name    = av_strdup("out");
1821         inputs->filter_ctx = filt_out;
1822         inputs->pad_idx = 0;
1823         inputs->next    = NULL;
1824
1825         if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
1826             goto the_end;
1827         av_freep(&vfilters);
1828     } else {
1829         if(avfilter_link(filt_src, 0, filt_out, 0) < 0)          goto the_end;
1830     }
1831
1832     if (avfilter_graph_config(graph, NULL) < 0)
1833         goto the_end;
1834
1835     is->out_video_filter = filt_out;
1836 #endif
1837
1838     for(;;) {
1839 #if !CONFIG_AVFILTER
1840         AVPacket pkt;
1841 #else
1842         AVFilterBufferRef *picref;
1843         AVRational tb;
1844 #endif
1845         while (is->paused && !is->videoq.abort_request)
1846             SDL_Delay(10);
1847 #if CONFIG_AVFILTER
1848         ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1849         if (picref) {
1850             pts_int = picref->pts;
1851             pos     = picref->pos;
1852             frame->opaque = picref;
1853         }
1854
1855         if (av_cmp_q(tb, is->video_st->time_base)) {
1856             av_unused int64_t pts1 = pts_int;
1857             pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1858             av_dlog(NULL, "video_thread(): "
1859                     "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1860                     tb.num, tb.den, pts1,
1861                     is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1862         }
1863 #else
1864         ret = get_video_frame(is, frame, &pts_int, &pkt);
1865 #endif
1866
1867         if (ret < 0) goto the_end;
1868
1869         if (!ret)
1870             continue;
1871
1872         pts = pts_int*av_q2d(is->video_st->time_base);
1873
1874 #if CONFIG_AVFILTER
1875         ret = output_picture2(is, frame, pts, pos);
1876 #else
1877         ret = output_picture2(is, frame, pts,  pkt.pos);
1878         av_free_packet(&pkt);
1879 #endif
1880         if (ret < 0)
1881             goto the_end;
1882
1883         if (step)
1884             if (cur_stream)
1885                 stream_pause(cur_stream);
1886     }
1887  the_end:
1888 #if CONFIG_AVFILTER
1889     avfilter_graph_free(graph);
1890     av_freep(&graph);
1891 #endif
1892     av_free(frame);
1893     return 0;
1894 }
1895
1896 static int subtitle_thread(void *arg)
1897 {
1898     VideoState *is = arg;
1899     SubPicture *sp;
1900     AVPacket pkt1, *pkt = &pkt1;
1901     int len1, got_subtitle;
1902     double pts;
1903     int i, j;
1904     int r, g, b, y, u, v, a;
1905
1906     for(;;) {
1907         while (is->paused && !is->subtitleq.abort_request) {
1908             SDL_Delay(10);
1909         }
1910         if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1911             break;
1912
1913         if(pkt->data == flush_pkt.data){
1914             avcodec_flush_buffers(is->subtitle_st->codec);
1915             continue;
1916         }
1917         SDL_LockMutex(is->subpq_mutex);
1918         while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1919                !is->subtitleq.abort_request) {
1920             SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1921         }
1922         SDL_UnlockMutex(is->subpq_mutex);
1923
1924         if (is->subtitleq.abort_request)
1925             goto the_end;
1926
1927         sp = &is->subpq[is->subpq_windex];
1928
1929        /* NOTE: ipts is the PTS of the _first_ picture beginning in
1930            this packet, if any */
1931         pts = 0;
1932         if (pkt->pts != AV_NOPTS_VALUE)
1933             pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1934
1935         len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1936                                     &sp->sub, &got_subtitle,
1937                                     pkt);
1938 //            if (len1 < 0)
1939 //                break;
1940         if (got_subtitle && sp->sub.format == 0) {
1941             sp->pts = pts;
1942
1943             for (i = 0; i < sp->sub.num_rects; i++)
1944             {
1945                 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1946                 {
1947                     RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1948                     y = RGB_TO_Y_CCIR(r, g, b);
1949                     u = RGB_TO_U_CCIR(r, g, b, 0);
1950                     v = RGB_TO_V_CCIR(r, g, b, 0);
1951                     YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1952                 }
1953             }
1954
1955             /* now we can update the picture count */
1956             if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1957                 is->subpq_windex = 0;
1958             SDL_LockMutex(is->subpq_mutex);
1959             is->subpq_size++;
1960             SDL_UnlockMutex(is->subpq_mutex);
1961         }
1962         av_free_packet(pkt);
1963 //        if (step)
1964 //            if (cur_stream)
1965 //                stream_pause(cur_stream);
1966     }
1967  the_end:
1968     return 0;
1969 }
1970
1971 /* copy samples for viewing in editor window */
1972 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1973 {
1974     int size, len, channels;
1975
1976     channels = is->audio_st->codec->channels;
1977
1978     size = samples_size / sizeof(short);
1979     while (size > 0) {
1980         len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1981         if (len > size)
1982             len = size;
1983         memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1984         samples += len;
1985         is->sample_array_index += len;
1986         if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1987             is->sample_array_index = 0;
1988         size -= len;
1989     }
1990 }
1991
1992 /* return the new audio buffer size (samples can be added or deleted
1993    to get better sync if video or external master clock) */
1994 static int synchronize_audio(VideoState *is, short *samples,
1995                              int samples_size1, double pts)
1996 {
1997     int n, samples_size;
1998     double ref_clock;
1999
2000     n = 2 * is->audio_st->codec->channels;
2001     samples_size = samples_size1;
2002
2003     /* if not master, then we try to remove or add samples to correct the clock */
2004     if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
2005          is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
2006         double diff, avg_diff;
2007         int wanted_size, min_size, max_size, nb_samples;
2008
2009         ref_clock = get_master_clock(is);
2010         diff = get_audio_clock(is) - ref_clock;
2011
2012         if (diff < AV_NOSYNC_THRESHOLD) {
2013             is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2014             if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2015                 /* not enough measures to have a correct estimate */
2016                 is->audio_diff_avg_count++;
2017             } else {
2018                 /* estimate the A-V difference */
2019                 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2020
2021                 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2022                     wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2023                     nb_samples = samples_size / n;
2024
2025                     min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2026                     max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2027                     if (wanted_size < min_size)
2028                         wanted_size = min_size;
2029                     else if (wanted_size > max_size)
2030                         wanted_size = max_size;
2031
2032                     /* add or remove samples to correction the synchro */
2033                     if (wanted_size < samples_size) {
2034                         /* remove samples */
2035                         samples_size = wanted_size;
2036                     } else if (wanted_size > samples_size) {
2037                         uint8_t *samples_end, *q;
2038                         int nb;
2039
2040                         /* add samples */
2041                         nb = (samples_size - wanted_size);
2042                         samples_end = (uint8_t *)samples + samples_size - n;
2043                         q = samples_end + n;
2044                         while (nb > 0) {
2045                             memcpy(q, samples_end, n);
2046                             q += n;
2047                             nb -= n;
2048                         }
2049                         samples_size = wanted_size;
2050                     }
2051                 }
2052 #if 0
2053                 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2054                        diff, avg_diff, samples_size - samples_size1,
2055                        is->audio_clock, is->video_clock, is->audio_diff_threshold);
2056 #endif
2057             }
2058         } else {
2059             /* too big difference : may be initial PTS errors, so
2060                reset A-V filter */
2061             is->audio_diff_avg_count = 0;
2062             is->audio_diff_cum = 0;
2063         }
2064     }
2065
2066     return samples_size;
2067 }
2068
2069 /* decode one audio frame and returns its uncompressed size */
2070 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2071 {
2072     AVPacket *pkt_temp = &is->audio_pkt_temp;
2073     AVPacket *pkt = &is->audio_pkt;
2074     AVCodecContext *dec= is->audio_st->codec;
2075     int n, len1, data_size;
2076     double pts;
2077
2078     for(;;) {
2079         /* NOTE: the audio packet can contain several frames */
2080         while (pkt_temp->size > 0) {
2081             data_size = sizeof(is->audio_buf1);
2082             len1 = avcodec_decode_audio3(dec,
2083                                         (int16_t *)is->audio_buf1, &data_size,
2084                                         pkt_temp);
2085             if (len1 < 0) {
2086                 /* if error, we skip the frame */
2087                 pkt_temp->size = 0;
2088                 break;
2089             }
2090
2091             pkt_temp->data += len1;
2092             pkt_temp->size -= len1;
2093             if (data_size <= 0)
2094                 continue;
2095
2096             if (dec->sample_fmt != is->audio_src_fmt) {
2097                 if (is->reformat_ctx)
2098                     av_audio_convert_free(is->reformat_ctx);
2099                 is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2100                                                          dec->sample_fmt, 1, NULL, 0);
2101                 if (!is->reformat_ctx) {
2102                     fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2103                         av_get_sample_fmt_name(dec->sample_fmt),
2104                         av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2105                         break;
2106                 }
2107                 is->audio_src_fmt= dec->sample_fmt;
2108             }
2109
2110             if (is->reformat_ctx) {
2111                 const void *ibuf[6]= {is->audio_buf1};
2112                 void *obuf[6]= {is->audio_buf2};
2113                 int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2114                 int ostride[6]= {2};
2115                 int len= data_size/istride[0];
2116                 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2117                     printf("av_audio_convert() failed\n");
2118                     break;
2119                 }
2120                 is->audio_buf= is->audio_buf2;
2121                 /* FIXME: existing code assume that data_size equals framesize*channels*2
2122                           remove this legacy cruft */
2123                 data_size= len*2;
2124             }else{
2125                 is->audio_buf= is->audio_buf1;
2126             }
2127
2128             /* if no pts, then compute it */
2129             pts = is->audio_clock;
2130             *pts_ptr = pts;
2131             n = 2 * dec->channels;
2132             is->audio_clock += (double)data_size /
2133                 (double)(n * dec->sample_rate);
2134 #if defined(DEBUG_SYNC)
2135             {
2136                 static double last_clock;
2137                 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2138                        is->audio_clock - last_clock,
2139                        is->audio_clock, pts);
2140                 last_clock = is->audio_clock;
2141             }
2142 #endif
2143             return data_size;
2144         }
2145
2146         /* free the current packet */
2147         if (pkt->data)
2148             av_free_packet(pkt);
2149
2150         if (is->paused || is->audioq.abort_request) {
2151             return -1;
2152         }
2153
2154         /* read next packet */
2155         if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2156             return -1;
2157         if(pkt->data == flush_pkt.data){
2158             avcodec_flush_buffers(dec);
2159             continue;
2160         }
2161
2162         pkt_temp->data = pkt->data;
2163         pkt_temp->size = pkt->size;
2164
2165         /* if update the audio clock with the pts */
2166         if (pkt->pts != AV_NOPTS_VALUE) {
2167             is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2168         }
2169     }
2170 }
2171
2172 /* get the current audio output buffer size, in samples. With SDL, we
2173    cannot have a precise information */
2174 static int audio_write_get_buf_size(VideoState *is)
2175 {
2176     return is->audio_buf_size - is->audio_buf_index;
2177 }
2178
2179
2180 /* prepare a new audio buffer */
2181 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2182 {
2183     VideoState *is = opaque;
2184     int audio_size, len1;
2185     double pts;
2186
2187     audio_callback_time = av_gettime();
2188
2189     while (len > 0) {
2190         if (is->audio_buf_index >= is->audio_buf_size) {
2191            audio_size = audio_decode_frame(is, &pts);
2192            if (audio_size < 0) {
2193                 /* if error, just output silence */
2194                is->audio_buf = is->audio_buf1;
2195                is->audio_buf_size = 1024;
2196                memset(is->audio_buf, 0, is->audio_buf_size);
2197            } else {
2198                if (is->show_audio)
2199                    update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2200                audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2201                                               pts);
2202                is->audio_buf_size = audio_size;
2203            }
2204            is->audio_buf_index = 0;
2205         }
2206         len1 = is->audio_buf_size - is->audio_buf_index;
2207         if (len1 > len)
2208             len1 = len;
2209         memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2210         len -= len1;
2211         stream += len1;
2212         is->audio_buf_index += len1;
2213     }
2214 }
2215
2216 /* open a given stream. Return 0 if OK */
2217 static int stream_component_open(VideoState *is, int stream_index)
2218 {
2219     AVFormatContext *ic = is->ic;
2220     AVCodecContext *avctx;
2221     AVCodec *codec;
2222     SDL_AudioSpec wanted_spec, spec;
2223
2224     if (stream_index < 0 || stream_index >= ic->nb_streams)
2225         return -1;
2226     avctx = ic->streams[stream_index]->codec;
2227
2228     /* prepare audio output */
2229     if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2230         if (avctx->channels > 0) {
2231             avctx->request_channels = FFMIN(2, avctx->channels);
2232         } else {
2233             avctx->request_channels = 2;
2234         }
2235     }
2236
2237     codec = avcodec_find_decoder(avctx->codec_id);
2238     avctx->debug_mv = debug_mv;
2239     avctx->debug = debug;
2240     avctx->workaround_bugs = workaround_bugs;
2241     avctx->lowres = lowres;
2242     if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2243     avctx->idct_algo= idct;
2244     if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2245     avctx->skip_frame= skip_frame;
2246     avctx->skip_idct= skip_idct;
2247     avctx->skip_loop_filter= skip_loop_filter;
2248     avctx->error_recognition= error_recognition;
2249     avctx->error_concealment= error_concealment;
2250     avcodec_thread_init(avctx, thread_count);
2251
2252     set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2253
2254     if (!codec ||
2255         avcodec_open(avctx, codec) < 0)
2256         return -1;
2257
2258     /* prepare audio output */
2259     if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2260         wanted_spec.freq = avctx->sample_rate;
2261         wanted_spec.format = AUDIO_S16SYS;
2262         wanted_spec.channels = avctx->channels;
2263         wanted_spec.silence = 0;
2264         wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2265         wanted_spec.callback = sdl_audio_callback;
2266         wanted_spec.userdata = is;
2267         if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2268             fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2269             return -1;
2270         }
2271         is->audio_hw_buf_size = spec.size;
2272         is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2273     }
2274
2275     ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2276     switch(avctx->codec_type) {
2277     case AVMEDIA_TYPE_AUDIO:
2278         is->audio_stream = stream_index;
2279         is->audio_st = ic->streams[stream_index];
2280         is->audio_buf_size = 0;
2281         is->audio_buf_index = 0;
2282
2283         /* init averaging filter */
2284         is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2285         is->audio_diff_avg_count = 0;
2286         /* since we do not have a precise anough audio fifo fullness,
2287            we correct audio sync only if larger than this threshold */
2288         is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2289
2290         memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2291         packet_queue_init(&is->audioq);
2292         SDL_PauseAudio(0);
2293         break;
2294     case AVMEDIA_TYPE_VIDEO:
2295         is->video_stream = stream_index;
2296         is->video_st = ic->streams[stream_index];
2297
2298 //        is->video_current_pts_time = av_gettime();
2299
2300         packet_queue_init(&is->videoq);
2301         is->video_tid = SDL_CreateThread(video_thread, is);
2302         break;
2303     case AVMEDIA_TYPE_SUBTITLE:
2304         is->subtitle_stream = stream_index;
2305         is->subtitle_st = ic->streams[stream_index];
2306         packet_queue_init(&is->subtitleq);
2307
2308         is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2309         break;
2310     default:
2311         break;
2312     }
2313     return 0;
2314 }
2315
2316 static void stream_component_close(VideoState *is, int stream_index)
2317 {
2318     AVFormatContext *ic = is->ic;
2319     AVCodecContext *avctx;
2320
2321     if (stream_index < 0 || stream_index >= ic->nb_streams)
2322         return;
2323     avctx = ic->streams[stream_index]->codec;
2324
2325     switch(avctx->codec_type) {
2326     case AVMEDIA_TYPE_AUDIO:
2327         packet_queue_abort(&is->audioq);
2328
2329         SDL_CloseAudio();
2330
2331         packet_queue_end(&is->audioq);
2332         if (is->reformat_ctx)
2333             av_audio_convert_free(is->reformat_ctx);
2334         is->reformat_ctx = NULL;
2335         break;
2336     case AVMEDIA_TYPE_VIDEO:
2337         packet_queue_abort(&is->videoq);
2338
2339         /* note: we also signal this mutex to make sure we deblock the
2340            video thread in all cases */
2341         SDL_LockMutex(is->pictq_mutex);
2342         SDL_CondSignal(is->pictq_cond);
2343         SDL_UnlockMutex(is->pictq_mutex);
2344
2345         SDL_WaitThread(is->video_tid, NULL);
2346
2347         packet_queue_end(&is->videoq);
2348         break;
2349     case AVMEDIA_TYPE_SUBTITLE:
2350         packet_queue_abort(&is->subtitleq);
2351
2352         /* note: we also signal this mutex to make sure we deblock the
2353            video thread in all cases */
2354         SDL_LockMutex(is->subpq_mutex);
2355         is->subtitle_stream_changed = 1;
2356
2357         SDL_CondSignal(is->subpq_cond);
2358         SDL_UnlockMutex(is->subpq_mutex);
2359
2360         SDL_WaitThread(is->subtitle_tid, NULL);
2361
2362         packet_queue_end(&is->subtitleq);
2363         break;
2364     default:
2365         break;
2366     }
2367
2368     ic->streams[stream_index]->discard = AVDISCARD_ALL;
2369     avcodec_close(avctx);
2370     switch(avctx->codec_type) {
2371     case AVMEDIA_TYPE_AUDIO:
2372         is->audio_st = NULL;
2373         is->audio_stream = -1;
2374         break;
2375     case AVMEDIA_TYPE_VIDEO:
2376         is->video_st = NULL;
2377         is->video_stream = -1;
2378         break;
2379     case AVMEDIA_TYPE_SUBTITLE:
2380         is->subtitle_st = NULL;
2381         is->subtitle_stream = -1;
2382         break;
2383     default:
2384         break;
2385     }
2386 }
2387
2388 /* since we have only one decoding thread, we can use a global
2389    variable instead of a thread local variable */
2390 static VideoState *global_video_state;
2391
2392 static int decode_interrupt_cb(void)
2393 {
2394     return (global_video_state && global_video_state->abort_request);
2395 }
2396
2397 /* this thread gets the stream from the disk or the network */
2398 static int decode_thread(void *arg)
2399 {
2400     VideoState *is = arg;
2401     AVFormatContext *ic;
2402     int err, i, ret;
2403     int st_index[AVMEDIA_TYPE_NB];
2404     AVPacket pkt1, *pkt = &pkt1;
2405     AVFormatParameters params, *ap = &params;
2406     int eof=0;
2407     int pkt_in_play_range = 0;
2408
2409     ic = avformat_alloc_context();
2410
2411     memset(st_index, -1, sizeof(st_index));
2412     is->video_stream = -1;
2413     is->audio_stream = -1;
2414     is->subtitle_stream = -1;
2415
2416     global_video_state = is;
2417     url_set_interrupt_cb(decode_interrupt_cb);
2418
2419     memset(ap, 0, sizeof(*ap));
2420
2421     ap->prealloced_context = 1;
2422     ap->width = frame_width;
2423     ap->height= frame_height;
2424     ap->time_base= (AVRational){1, 25};
2425     ap->pix_fmt = frame_pix_fmt;
2426
2427     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2428
2429     err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2430     if (err < 0) {
2431         print_error(is->filename, err);
2432         ret = -1;
2433         goto fail;
2434     }
2435     is->ic = ic;
2436
2437     if(genpts)
2438         ic->flags |= AVFMT_FLAG_GENPTS;
2439
2440     err = av_find_stream_info(ic);
2441     if (err < 0) {
2442         fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2443         ret = -1;
2444         goto fail;
2445     }
2446     if(ic->pb)
2447         ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2448
2449     if(seek_by_bytes<0)
2450         seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2451
2452     /* if seeking requested, we execute it */
2453     if (start_time != AV_NOPTS_VALUE) {
2454         int64_t timestamp;
2455
2456         timestamp = start_time;
2457         /* add the stream start time */
2458         if (ic->start_time != AV_NOPTS_VALUE)
2459             timestamp += ic->start_time;
2460         ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2461         if (ret < 0) {
2462             fprintf(stderr, "%s: could not seek to position %0.3f\n",
2463                     is->filename, (double)timestamp / AV_TIME_BASE);
2464         }
2465     }
2466
2467     for (i = 0; i < ic->nb_streams; i++)
2468         ic->streams[i]->discard = AVDISCARD_ALL;
2469     if (!video_disable)
2470         st_index[AVMEDIA_TYPE_VIDEO] =
2471             av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2472                                 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2473     if (!audio_disable)
2474         st_index[AVMEDIA_TYPE_AUDIO] =
2475             av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2476                                 wanted_stream[AVMEDIA_TYPE_AUDIO],
2477                                 st_index[AVMEDIA_TYPE_VIDEO],
2478                                 NULL, 0);
2479     if (!video_disable)
2480         st_index[AVMEDIA_TYPE_SUBTITLE] =
2481             av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2482                                 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2483                                 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2484                                  st_index[AVMEDIA_TYPE_AUDIO] :
2485                                  st_index[AVMEDIA_TYPE_VIDEO]),
2486                                 NULL, 0);
2487     if (show_status) {
2488         dump_format(ic, 0, is->filename, 0);
2489     }
2490
2491     /* open the streams */
2492     if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2493         stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2494     }
2495
2496     ret=-1;
2497     if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2498         ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2499     }
2500     is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2501     if(ret<0) {
2502         if (!display_disable)
2503             is->show_audio = 2;
2504     }
2505
2506     if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2507         stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2508     }
2509
2510     if (is->video_stream < 0 && is->audio_stream < 0) {
2511         fprintf(stderr, "%s: could not open codecs\n", is->filename);
2512         ret = -1;
2513         goto fail;
2514     }
2515
2516     for(;;) {
2517         if (is->abort_request)
2518             break;
2519         if (is->paused != is->last_paused) {
2520             is->last_paused = is->paused;
2521             if (is->paused)
2522                 is->read_pause_return= av_read_pause(ic);
2523             else
2524                 av_read_play(ic);
2525         }
2526 #if CONFIG_RTSP_DEMUXER
2527         if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2528             /* wait 10 ms to avoid trying to get another packet */
2529             /* XXX: horrible */
2530             SDL_Delay(10);
2531             continue;
2532         }
2533 #endif
2534         if (is->seek_req) {
2535             int64_t seek_target= is->seek_pos;
2536             int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2537             int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2538 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2539 //      of the seek_pos/seek_rel variables
2540
2541             ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2542             if (ret < 0) {
2543                 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2544             }else{
2545                 if (is->audio_stream >= 0) {
2546                     packet_queue_flush(&is->audioq);
2547                     packet_queue_put(&is->audioq, &flush_pkt);
2548                 }
2549                 if (is->subtitle_stream >= 0) {
2550                     packet_queue_flush(&is->subtitleq);
2551                     packet_queue_put(&is->subtitleq, &flush_pkt);
2552                 }
2553                 if (is->video_stream >= 0) {
2554                     packet_queue_flush(&is->videoq);
2555                     packet_queue_put(&is->videoq, &flush_pkt);
2556                 }
2557             }
2558             is->seek_req = 0;
2559             eof= 0;
2560         }
2561
2562         /* if the queue are full, no need to read more */
2563         if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2564             || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2565                 && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
2566                 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2567             /* wait 10 ms */
2568             SDL_Delay(10);
2569             continue;
2570         }
2571         if(eof) {
2572             if(is->video_stream >= 0){
2573                 av_init_packet(pkt);
2574                 pkt->data=NULL;
2575                 pkt->size=0;
2576                 pkt->stream_index= is->video_stream;
2577                 packet_queue_put(&is->videoq, pkt);
2578             }
2579             SDL_Delay(10);
2580             if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2581                 if(loop!=1 && (!loop || --loop)){
2582                     stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2583                 }else if(autoexit){
2584                     ret=AVERROR_EOF;
2585                     goto fail;
2586                 }
2587             }
2588             continue;
2589         }
2590         ret = av_read_frame(ic, pkt);
2591         if (ret < 0) {
2592             if (ret == AVERROR_EOF || url_feof(ic->pb))
2593                 eof=1;
2594             if (url_ferror(ic->pb))
2595                 break;
2596             SDL_Delay(100); /* wait for user event */
2597             continue;
2598         }
2599         /* check if packet is in play range specified by user, then queue, otherwise discard */
2600         pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2601                 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2602                 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2603                 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2604                 <= ((double)duration/1000000);
2605         if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2606             packet_queue_put(&is->audioq, pkt);
2607         } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2608             packet_queue_put(&is->videoq, pkt);
2609         } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2610             packet_queue_put(&is->subtitleq, pkt);
2611         } else {
2612             av_free_packet(pkt);
2613         }
2614     }
2615     /* wait until the end */
2616     while (!is->abort_request) {
2617         SDL_Delay(100);
2618     }
2619
2620     ret = 0;
2621  fail:
2622     /* disable interrupting */
2623     global_video_state = NULL;
2624
2625     /* close each stream */
2626     if (is->audio_stream >= 0)
2627         stream_component_close(is, is->audio_stream);
2628     if (is->video_stream >= 0)
2629         stream_component_close(is, is->video_stream);
2630     if (is->subtitle_stream >= 0)
2631         stream_component_close(is, is->subtitle_stream);
2632     if (is->ic) {
2633         av_close_input_file(is->ic);
2634         is->ic = NULL; /* safety */
2635     }
2636     url_set_interrupt_cb(NULL);
2637
2638     if (ret != 0) {
2639         SDL_Event event;
2640
2641         event.type = FF_QUIT_EVENT;
2642         event.user.data1 = is;
2643         SDL_PushEvent(&event);
2644     }
2645     return 0;
2646 }
2647
2648 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2649 {
2650     VideoState *is;
2651
2652     is = av_mallocz(sizeof(VideoState));
2653     if (!is)
2654         return NULL;
2655     av_strlcpy(is->filename, filename, sizeof(is->filename));
2656     is->iformat = iformat;
2657     is->ytop = 0;
2658     is->xleft = 0;
2659
2660     /* start video display */
2661     is->pictq_mutex = SDL_CreateMutex();
2662     is->pictq_cond = SDL_CreateCond();
2663
2664     is->subpq_mutex = SDL_CreateMutex();
2665     is->subpq_cond = SDL_CreateCond();
2666
2667     is->av_sync_type = av_sync_type;
2668     is->parse_tid = SDL_CreateThread(decode_thread, is);
2669     if (!is->parse_tid) {
2670         av_free(is);
2671         return NULL;
2672     }
2673     return is;
2674 }
2675
2676 static void stream_cycle_channel(VideoState *is, int codec_type)
2677 {
2678     AVFormatContext *ic = is->ic;
2679     int start_index, stream_index;
2680     AVStream *st;
2681
2682     if (codec_type == AVMEDIA_TYPE_VIDEO)
2683         start_index = is->video_stream;
2684     else if (codec_type == AVMEDIA_TYPE_AUDIO)
2685         start_index = is->audio_stream;
2686     else
2687         start_index = is->subtitle_stream;
2688     if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2689         return;
2690     stream_index = start_index;
2691     for(;;) {
2692         if (++stream_index >= is->ic->nb_streams)
2693         {
2694             if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2695             {
2696                 stream_index = -1;
2697                 goto the_end;
2698             } else
2699                 stream_index = 0;
2700         }
2701         if (stream_index == start_index)
2702             return;
2703         st = ic->streams[stream_index];
2704         if (st->codec->codec_type == codec_type) {
2705             /* check that parameters are OK */
2706             switch(codec_type) {
2707             case AVMEDIA_TYPE_AUDIO:
2708                 if (st->codec->sample_rate != 0 &&
2709                     st->codec->channels != 0)
2710                     goto the_end;
2711                 break;
2712             case AVMEDIA_TYPE_VIDEO:
2713             case AVMEDIA_TYPE_SUBTITLE:
2714                 goto the_end;
2715             default:
2716                 break;
2717             }
2718         }
2719     }
2720  the_end:
2721     stream_component_close(is, start_index);
2722     stream_component_open(is, stream_index);
2723 }
2724
2725
2726 static void toggle_full_screen(void)
2727 {
2728     is_full_screen = !is_full_screen;
2729     if (!fs_screen_width) {
2730         /* use default SDL method */
2731 //        SDL_WM_ToggleFullScreen(screen);
2732     }
2733     video_open(cur_stream);
2734 }
2735
2736 static void toggle_pause(void)
2737 {
2738     if (cur_stream)
2739         stream_pause(cur_stream);
2740     step = 0;
2741 }
2742
2743 static void step_to_next_frame(void)
2744 {
2745     if (cur_stream) {
2746         /* if the stream is paused unpause it, then step */
2747         if (cur_stream->paused)
2748             stream_pause(cur_stream);
2749     }
2750     step = 1;
2751 }
2752
2753 static void toggle_audio_display(void)
2754 {
2755     if (cur_stream) {
2756         int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2757         cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2758         fill_rectangle(screen,
2759                     cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2760                     bgcolor);
2761         SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2762     }
2763 }
2764
2765 /* handle an event sent by the GUI */
2766 static void event_loop(void)
2767 {
2768     SDL_Event event;
2769     double incr, pos, frac;
2770
2771     for(;;) {
2772         double x;
2773         SDL_WaitEvent(&event);
2774         switch(event.type) {
2775         case SDL_KEYDOWN:
2776             if (exit_on_keydown) {
2777                 do_exit();
2778                 break;
2779             }
2780             switch(event.key.keysym.sym) {
2781             case SDLK_ESCAPE:
2782             case SDLK_q:
2783                 do_exit();
2784                 break;
2785             case SDLK_f:
2786                 toggle_full_screen();
2787                 break;
2788             case SDLK_p:
2789             case SDLK_SPACE:
2790                 toggle_pause();
2791                 break;
2792             case SDLK_s: //S: Step to next frame
2793                 step_to_next_frame();
2794                 break;
2795             case SDLK_a:
2796                 if (cur_stream)
2797                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2798                 break;
2799             case SDLK_v:
2800                 if (cur_stream)
2801                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2802                 break;
2803             case SDLK_t:
2804                 if (cur_stream)
2805                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2806                 break;
2807             case SDLK_w:
2808                 toggle_audio_display();
2809                 break;
2810             case SDLK_LEFT:
2811                 incr = -10.0;
2812                 goto do_seek;
2813             case SDLK_RIGHT:
2814                 incr = 10.0;
2815                 goto do_seek;
2816             case SDLK_UP:
2817                 incr = 60.0;
2818                 goto do_seek;
2819             case SDLK_DOWN:
2820                 incr = -60.0;
2821             do_seek:
2822                 if (cur_stream) {
2823                     if (seek_by_bytes) {
2824                         if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2825                             pos= cur_stream->video_current_pos;
2826                         }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2827                             pos= cur_stream->audio_pkt.pos;
2828                         }else
2829                             pos = url_ftell(cur_stream->ic->pb);
2830                         if (cur_stream->ic->bit_rate)
2831                             incr *= cur_stream->ic->bit_rate / 8.0;
2832                         else
2833                             incr *= 180000.0;
2834                         pos += incr;
2835                         stream_seek(cur_stream, pos, incr, 1);
2836                     } else {
2837                         pos = get_master_clock(cur_stream);
2838                         pos += incr;
2839                         stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2840                     }
2841                 }
2842                 break;
2843             default:
2844                 break;
2845             }
2846             break;
2847         case SDL_MOUSEBUTTONDOWN:
2848             if (exit_on_mousedown) {
2849                 do_exit();
2850                 break;
2851             }
2852         case SDL_MOUSEMOTION:
2853             if(event.type ==SDL_MOUSEBUTTONDOWN){
2854                 x= event.button.x;
2855             }else{
2856                 if(event.motion.state != SDL_PRESSED)
2857                     break;
2858                 x= event.motion.x;
2859             }
2860             if (cur_stream) {
2861                 if(seek_by_bytes || cur_stream->ic->duration<=0){
2862                     uint64_t size=  url_fsize(cur_stream->ic->pb);
2863                     stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2864                 }else{
2865                     int64_t ts;
2866                     int ns, hh, mm, ss;
2867                     int tns, thh, tmm, tss;
2868                     tns = cur_stream->ic->duration/1000000LL;
2869                     thh = tns/3600;
2870                     tmm = (tns%3600)/60;
2871                     tss = (tns%60);
2872                     frac = x/cur_stream->width;
2873                     ns = frac*tns;
2874                     hh = ns/3600;
2875                     mm = (ns%3600)/60;
2876                     ss = (ns%60);
2877                     fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d)       \n", frac*100,
2878                             hh, mm, ss, thh, tmm, tss);
2879                     ts = frac*cur_stream->ic->duration;
2880                     if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2881                         ts += cur_stream->ic->start_time;
2882                     stream_seek(cur_stream, ts, 0, 0);
2883                 }
2884             }
2885             break;
2886         case SDL_VIDEORESIZE:
2887             if (cur_stream) {
2888                 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2889                                           SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2890                 screen_width = cur_stream->width = event.resize.w;
2891                 screen_height= cur_stream->height= event.resize.h;
2892             }
2893             break;
2894         case SDL_QUIT:
2895         case FF_QUIT_EVENT:
2896             do_exit();
2897             break;
2898         case FF_ALLOC_EVENT:
2899             video_open(event.user.data1);
2900             alloc_picture(event.user.data1);
2901             break;
2902         case FF_REFRESH_EVENT:
2903             video_refresh_timer(event.user.data1);
2904             cur_stream->refresh=0;
2905             break;
2906         default:
2907             break;
2908         }
2909     }
2910 }
2911
2912 static void opt_frame_size(const char *arg)
2913 {
2914     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2915         fprintf(stderr, "Incorrect frame size\n");
2916         exit(1);
2917     }
2918     if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2919         fprintf(stderr, "Frame size must be a multiple of 2\n");
2920         exit(1);
2921     }
2922 }
2923
2924 static int opt_width(const char *opt, const char *arg)
2925 {
2926     screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2927     return 0;
2928 }
2929
2930 static int opt_height(const char *opt, const char *arg)
2931 {
2932     screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2933     return 0;
2934 }
2935
2936 static void opt_format(const char *arg)
2937 {
2938     file_iformat = av_find_input_format(arg);
2939     if (!file_iformat) {
2940         fprintf(stderr, "Unknown input format: %s\n", arg);
2941         exit(1);
2942     }
2943 }
2944
2945 static void opt_frame_pix_fmt(const char *arg)
2946 {
2947     frame_pix_fmt = av_get_pix_fmt(arg);
2948 }
2949
2950 static int opt_sync(const char *opt, const char *arg)
2951 {
2952     if (!strcmp(arg, "audio"))
2953         av_sync_type = AV_SYNC_AUDIO_MASTER;
2954     else if (!strcmp(arg, "video"))
2955         av_sync_type = AV_SYNC_VIDEO_MASTER;
2956     else if (!strcmp(arg, "ext"))
2957         av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2958     else {
2959         fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2960         exit(1);
2961     }
2962     return 0;
2963 }
2964
2965 static int opt_seek(const char *opt, const char *arg)
2966 {
2967     start_time = parse_time_or_die(opt, arg, 1);
2968     return 0;
2969 }
2970
2971 static int opt_duration(const char *opt, const char *arg)
2972 {
2973     duration = parse_time_or_die(opt, arg, 1);
2974     return 0;
2975 }
2976
2977 static int opt_debug(const char *opt, const char *arg)
2978 {
2979     av_log_set_level(99);
2980     debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2981     return 0;
2982 }
2983
2984 static int opt_vismv(const char *opt, const char *arg)
2985 {
2986     debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2987     return 0;
2988 }
2989
2990 static int opt_thread_count(const char *opt, const char *arg)
2991 {
2992     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2993 #if !HAVE_THREADS
2994     fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2995 #endif
2996     return 0;
2997 }
2998
2999 static const OptionDef options[] = {
3000 #include "cmdutils_common_opts.h"
3001     { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
3002     { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
3003     { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3004     { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
3005     { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
3006     { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
3007     { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
3008     { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
3009     { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
3010     { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
3011     { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play  \"duration\" seconds of audio/video", "duration" },
3012     { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3013     { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3014     { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3015     { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3016     { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3017     { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3018     { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3019     { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3020     { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3021     { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3022     { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3023     { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3024     { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3025     { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3026     { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3027     { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo",  "algo" },
3028     { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)",  "threshold" },
3029     { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options",  "bit_mask" },
3030     { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3031     { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3032     { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3033     { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3034     { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3035     { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3036     { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3037     { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3038 #if CONFIG_AVFILTER
3039     { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3040 #endif
3041     { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3042     { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3043     { NULL, },
3044 };
3045
3046 static void show_usage(void)
3047 {
3048     printf("Simple media player\n");
3049     printf("usage: ffplay [options] input_file\n");
3050     printf("\n");
3051 }
3052
3053 static void show_help(void)
3054 {
3055     av_log_set_callback(log_callback_help);
3056     show_usage();
3057     show_help_options(options, "Main options:\n",
3058                       OPT_EXPERT, 0);
3059     show_help_options(options, "\nAdvanced options:\n",
3060                       OPT_EXPERT, OPT_EXPERT);
3061     printf("\n");
3062     av_opt_show2(avcodec_opts[0], NULL,
3063                  AV_OPT_FLAG_DECODING_PARAM, 0);
3064     printf("\n");
3065     av_opt_show2(avformat_opts, NULL,
3066                  AV_OPT_FLAG_DECODING_PARAM, 0);
3067 #if !CONFIG_AVFILTER
3068     printf("\n");
3069     av_opt_show2(sws_opts, NULL,
3070                  AV_OPT_FLAG_ENCODING_PARAM, 0);
3071 #endif
3072     printf("\nWhile playing:\n"
3073            "q, ESC              quit\n"
3074            "f                   toggle full screen\n"
3075            "p, SPC              pause\n"
3076            "a                   cycle audio channel\n"
3077            "v                   cycle video channel\n"
3078            "t                   cycle subtitle channel\n"
3079            "w                   show audio waves\n"
3080            "s                   activate frame-step mode\n"
3081            "left/right          seek backward/forward 10 seconds\n"
3082            "down/up             seek backward/forward 1 minute\n"
3083            "mouse click         seek to percentage in file corresponding to fraction of width\n"
3084            );
3085 }
3086
3087 static void opt_input_file(const char *filename)
3088 {
3089     if (input_filename) {
3090         fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3091                 filename, input_filename);
3092         exit(1);
3093     }
3094     if (!strcmp(filename, "-"))
3095         filename = "pipe:";
3096     input_filename = filename;
3097 }
3098
3099 /* Called from the main */
3100 int main(int argc, char **argv)
3101 {
3102     int flags;
3103
3104     av_log_set_flags(AV_LOG_SKIP_REPEATED);
3105
3106     /* register all codecs, demux and protocols */
3107     avcodec_register_all();
3108 #if CONFIG_AVDEVICE
3109     avdevice_register_all();
3110 #endif
3111 #if CONFIG_AVFILTER
3112     avfilter_register_all();
3113 #endif
3114     av_register_all();
3115
3116     init_opts();
3117
3118     show_banner();
3119
3120     parse_options(argc, argv, options, opt_input_file);
3121
3122     if (!input_filename) {
3123         show_usage();
3124         fprintf(stderr, "An input file must be specified\n");
3125         fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3126         exit(1);
3127     }
3128
3129     if (display_disable) {
3130         video_disable = 1;
3131     }
3132     flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3133 #if !defined(__MINGW32__) && !defined(__APPLE__)
3134     flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3135 #endif
3136     if (SDL_Init (flags)) {
3137         fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3138         exit(1);
3139     }
3140
3141     if (!display_disable) {
3142 #if HAVE_SDL_VIDEO_SIZE
3143         const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3144         fs_screen_width = vi->current_w;
3145         fs_screen_height = vi->current_h;
3146 #endif
3147     }
3148
3149     SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3150     SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3151     SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3152
3153     av_init_packet(&flush_pkt);
3154     flush_pkt.data= "FLUSH";
3155
3156     cur_stream = stream_open(input_filename, file_iformat);
3157
3158     event_loop();
3159
3160     /* never returns */
3161
3162     return 0;
3163 }