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 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1786 {
1787     char sws_flags_str[128];
1788     int ret;
1789     FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1790     AVFilterContext *filt_src = NULL, *filt_out = NULL;
1791     snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1792     graph->scale_sws_opts = av_strdup(sws_flags_str);
1793
1794     if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1795                                             NULL, is, graph)) < 0)
1796         goto the_end;
1797     if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1798                                             NULL, &ffsink_ctx, graph)) < 0)
1799         goto the_end;
1800
1801     if(vfilters) {
1802         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1803         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
1804
1805         outputs->name    = av_strdup("in");
1806         outputs->filter_ctx = filt_src;
1807         outputs->pad_idx = 0;
1808         outputs->next    = NULL;
1809
1810         inputs->name    = av_strdup("out");
1811         inputs->filter_ctx = filt_out;
1812         inputs->pad_idx = 0;
1813         inputs->next    = NULL;
1814
1815         if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1816             goto the_end;
1817         av_freep(&vfilters);
1818     } else {
1819         if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1820             goto the_end;
1821     }
1822
1823     if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1824         goto the_end;
1825
1826     is->out_video_filter = filt_out;
1827 the_end:
1828     return ret;
1829 }
1830
1831 #endif  /* CONFIG_AVFILTER */
1832
1833 static int video_thread(void *arg)
1834 {
1835     VideoState *is = arg;
1836     AVFrame *frame= avcodec_alloc_frame();
1837     int64_t pts_int;
1838     double pts;
1839     int ret;
1840
1841 #if CONFIG_AVFILTER
1842     AVFilterGraph *graph = avfilter_graph_alloc();
1843     AVFilterContext *filt_out = NULL;
1844     int64_t pos;
1845
1846     if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1847         goto the_end;
1848     filt_out = is->out_video_filter;
1849 #endif
1850
1851     for(;;) {
1852 #if !CONFIG_AVFILTER
1853         AVPacket pkt;
1854 #else
1855         AVFilterBufferRef *picref;
1856         AVRational tb;
1857 #endif
1858         while (is->paused && !is->videoq.abort_request)
1859             SDL_Delay(10);
1860 #if CONFIG_AVFILTER
1861         ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1862         if (picref) {
1863             pts_int = picref->pts;
1864             pos     = picref->pos;
1865             frame->opaque = picref;
1866         }
1867
1868         if (av_cmp_q(tb, is->video_st->time_base)) {
1869             av_unused int64_t pts1 = pts_int;
1870             pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1871             av_dlog(NULL, "video_thread(): "
1872                     "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1873                     tb.num, tb.den, pts1,
1874                     is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1875         }
1876 #else
1877         ret = get_video_frame(is, frame, &pts_int, &pkt);
1878 #endif
1879
1880         if (ret < 0) goto the_end;
1881
1882         if (!ret)
1883             continue;
1884
1885         pts = pts_int*av_q2d(is->video_st->time_base);
1886
1887 #if CONFIG_AVFILTER
1888         ret = output_picture2(is, frame, pts, pos);
1889 #else
1890         ret = output_picture2(is, frame, pts,  pkt.pos);
1891         av_free_packet(&pkt);
1892 #endif
1893         if (ret < 0)
1894             goto the_end;
1895
1896         if (step)
1897             if (cur_stream)
1898                 stream_pause(cur_stream);
1899     }
1900  the_end:
1901 #if CONFIG_AVFILTER
1902     avfilter_graph_free(&graph);
1903 #endif
1904     av_free(frame);
1905     return 0;
1906 }
1907
1908 static int subtitle_thread(void *arg)
1909 {
1910     VideoState *is = arg;
1911     SubPicture *sp;
1912     AVPacket pkt1, *pkt = &pkt1;
1913     int len1, got_subtitle;
1914     double pts;
1915     int i, j;
1916     int r, g, b, y, u, v, a;
1917
1918     for(;;) {
1919         while (is->paused && !is->subtitleq.abort_request) {
1920             SDL_Delay(10);
1921         }
1922         if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1923             break;
1924
1925         if(pkt->data == flush_pkt.data){
1926             avcodec_flush_buffers(is->subtitle_st->codec);
1927             continue;
1928         }
1929         SDL_LockMutex(is->subpq_mutex);
1930         while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1931                !is->subtitleq.abort_request) {
1932             SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1933         }
1934         SDL_UnlockMutex(is->subpq_mutex);
1935
1936         if (is->subtitleq.abort_request)
1937             goto the_end;
1938
1939         sp = &is->subpq[is->subpq_windex];
1940
1941        /* NOTE: ipts is the PTS of the _first_ picture beginning in
1942            this packet, if any */
1943         pts = 0;
1944         if (pkt->pts != AV_NOPTS_VALUE)
1945             pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1946
1947         len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1948                                     &sp->sub, &got_subtitle,
1949                                     pkt);
1950 //            if (len1 < 0)
1951 //                break;
1952         if (got_subtitle && sp->sub.format == 0) {
1953             sp->pts = pts;
1954
1955             for (i = 0; i < sp->sub.num_rects; i++)
1956             {
1957                 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1958                 {
1959                     RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1960                     y = RGB_TO_Y_CCIR(r, g, b);
1961                     u = RGB_TO_U_CCIR(r, g, b, 0);
1962                     v = RGB_TO_V_CCIR(r, g, b, 0);
1963                     YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1964                 }
1965             }
1966
1967             /* now we can update the picture count */
1968             if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1969                 is->subpq_windex = 0;
1970             SDL_LockMutex(is->subpq_mutex);
1971             is->subpq_size++;
1972             SDL_UnlockMutex(is->subpq_mutex);
1973         }
1974         av_free_packet(pkt);
1975 //        if (step)
1976 //            if (cur_stream)
1977 //                stream_pause(cur_stream);
1978     }
1979  the_end:
1980     return 0;
1981 }
1982
1983 /* copy samples for viewing in editor window */
1984 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1985 {
1986     int size, len, channels;
1987
1988     channels = is->audio_st->codec->channels;
1989
1990     size = samples_size / sizeof(short);
1991     while (size > 0) {
1992         len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1993         if (len > size)
1994             len = size;
1995         memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1996         samples += len;
1997         is->sample_array_index += len;
1998         if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1999             is->sample_array_index = 0;
2000         size -= len;
2001     }
2002 }
2003
2004 /* return the new audio buffer size (samples can be added or deleted
2005    to get better sync if video or external master clock) */
2006 static int synchronize_audio(VideoState *is, short *samples,
2007                              int samples_size1, double pts)
2008 {
2009     int n, samples_size;
2010     double ref_clock;
2011
2012     n = 2 * is->audio_st->codec->channels;
2013     samples_size = samples_size1;
2014
2015     /* if not master, then we try to remove or add samples to correct the clock */
2016     if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
2017          is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
2018         double diff, avg_diff;
2019         int wanted_size, min_size, max_size, nb_samples;
2020
2021         ref_clock = get_master_clock(is);
2022         diff = get_audio_clock(is) - ref_clock;
2023
2024         if (diff < AV_NOSYNC_THRESHOLD) {
2025             is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2026             if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2027                 /* not enough measures to have a correct estimate */
2028                 is->audio_diff_avg_count++;
2029             } else {
2030                 /* estimate the A-V difference */
2031                 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2032
2033                 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2034                     wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2035                     nb_samples = samples_size / n;
2036
2037                     min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2038                     max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2039                     if (wanted_size < min_size)
2040                         wanted_size = min_size;
2041                     else if (wanted_size > max_size)
2042                         wanted_size = max_size;
2043
2044                     /* add or remove samples to correction the synchro */
2045                     if (wanted_size < samples_size) {
2046                         /* remove samples */
2047                         samples_size = wanted_size;
2048                     } else if (wanted_size > samples_size) {
2049                         uint8_t *samples_end, *q;
2050                         int nb;
2051
2052                         /* add samples */
2053                         nb = (samples_size - wanted_size);
2054                         samples_end = (uint8_t *)samples + samples_size - n;
2055                         q = samples_end + n;
2056                         while (nb > 0) {
2057                             memcpy(q, samples_end, n);
2058                             q += n;
2059                             nb -= n;
2060                         }
2061                         samples_size = wanted_size;
2062                     }
2063                 }
2064 #if 0
2065                 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2066                        diff, avg_diff, samples_size - samples_size1,
2067                        is->audio_clock, is->video_clock, is->audio_diff_threshold);
2068 #endif
2069             }
2070         } else {
2071             /* too big difference : may be initial PTS errors, so
2072                reset A-V filter */
2073             is->audio_diff_avg_count = 0;
2074             is->audio_diff_cum = 0;
2075         }
2076     }
2077
2078     return samples_size;
2079 }
2080
2081 /* decode one audio frame and returns its uncompressed size */
2082 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2083 {
2084     AVPacket *pkt_temp = &is->audio_pkt_temp;
2085     AVPacket *pkt = &is->audio_pkt;
2086     AVCodecContext *dec= is->audio_st->codec;
2087     int n, len1, data_size;
2088     double pts;
2089
2090     for(;;) {
2091         /* NOTE: the audio packet can contain several frames */
2092         while (pkt_temp->size > 0) {
2093             data_size = sizeof(is->audio_buf1);
2094             len1 = avcodec_decode_audio3(dec,
2095                                         (int16_t *)is->audio_buf1, &data_size,
2096                                         pkt_temp);
2097             if (len1 < 0) {
2098                 /* if error, we skip the frame */
2099                 pkt_temp->size = 0;
2100                 break;
2101             }
2102
2103             pkt_temp->data += len1;
2104             pkt_temp->size -= len1;
2105             if (data_size <= 0)
2106                 continue;
2107
2108             if (dec->sample_fmt != is->audio_src_fmt) {
2109                 if (is->reformat_ctx)
2110                     av_audio_convert_free(is->reformat_ctx);
2111                 is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2112                                                          dec->sample_fmt, 1, NULL, 0);
2113                 if (!is->reformat_ctx) {
2114                     fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2115                         av_get_sample_fmt_name(dec->sample_fmt),
2116                         av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2117                         break;
2118                 }
2119                 is->audio_src_fmt= dec->sample_fmt;
2120             }
2121
2122             if (is->reformat_ctx) {
2123                 const void *ibuf[6]= {is->audio_buf1};
2124                 void *obuf[6]= {is->audio_buf2};
2125                 int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2126                 int ostride[6]= {2};
2127                 int len= data_size/istride[0];
2128                 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2129                     printf("av_audio_convert() failed\n");
2130                     break;
2131                 }
2132                 is->audio_buf= is->audio_buf2;
2133                 /* FIXME: existing code assume that data_size equals framesize*channels*2
2134                           remove this legacy cruft */
2135                 data_size= len*2;
2136             }else{
2137                 is->audio_buf= is->audio_buf1;
2138             }
2139
2140             /* if no pts, then compute it */
2141             pts = is->audio_clock;
2142             *pts_ptr = pts;
2143             n = 2 * dec->channels;
2144             is->audio_clock += (double)data_size /
2145                 (double)(n * dec->sample_rate);
2146 #if defined(DEBUG_SYNC)
2147             {
2148                 static double last_clock;
2149                 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2150                        is->audio_clock - last_clock,
2151                        is->audio_clock, pts);
2152                 last_clock = is->audio_clock;
2153             }
2154 #endif
2155             return data_size;
2156         }
2157
2158         /* free the current packet */
2159         if (pkt->data)
2160             av_free_packet(pkt);
2161
2162         if (is->paused || is->audioq.abort_request) {
2163             return -1;
2164         }
2165
2166         /* read next packet */
2167         if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2168             return -1;
2169         if(pkt->data == flush_pkt.data){
2170             avcodec_flush_buffers(dec);
2171             continue;
2172         }
2173
2174         pkt_temp->data = pkt->data;
2175         pkt_temp->size = pkt->size;
2176
2177         /* if update the audio clock with the pts */
2178         if (pkt->pts != AV_NOPTS_VALUE) {
2179             is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2180         }
2181     }
2182 }
2183
2184 /* get the current audio output buffer size, in samples. With SDL, we
2185    cannot have a precise information */
2186 static int audio_write_get_buf_size(VideoState *is)
2187 {
2188     return is->audio_buf_size - is->audio_buf_index;
2189 }
2190
2191
2192 /* prepare a new audio buffer */
2193 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2194 {
2195     VideoState *is = opaque;
2196     int audio_size, len1;
2197     double pts;
2198
2199     audio_callback_time = av_gettime();
2200
2201     while (len > 0) {
2202         if (is->audio_buf_index >= is->audio_buf_size) {
2203            audio_size = audio_decode_frame(is, &pts);
2204            if (audio_size < 0) {
2205                 /* if error, just output silence */
2206                is->audio_buf = is->audio_buf1;
2207                is->audio_buf_size = 1024;
2208                memset(is->audio_buf, 0, is->audio_buf_size);
2209            } else {
2210                if (is->show_audio)
2211                    update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2212                audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2213                                               pts);
2214                is->audio_buf_size = audio_size;
2215            }
2216            is->audio_buf_index = 0;
2217         }
2218         len1 = is->audio_buf_size - is->audio_buf_index;
2219         if (len1 > len)
2220             len1 = len;
2221         memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2222         len -= len1;
2223         stream += len1;
2224         is->audio_buf_index += len1;
2225     }
2226 }
2227
2228 /* open a given stream. Return 0 if OK */
2229 static int stream_component_open(VideoState *is, int stream_index)
2230 {
2231     AVFormatContext *ic = is->ic;
2232     AVCodecContext *avctx;
2233     AVCodec *codec;
2234     SDL_AudioSpec wanted_spec, spec;
2235
2236     if (stream_index < 0 || stream_index >= ic->nb_streams)
2237         return -1;
2238     avctx = ic->streams[stream_index]->codec;
2239
2240     /* prepare audio output */
2241     if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2242         if (avctx->channels > 0) {
2243             avctx->request_channels = FFMIN(2, avctx->channels);
2244         } else {
2245             avctx->request_channels = 2;
2246         }
2247     }
2248
2249     codec = avcodec_find_decoder(avctx->codec_id);
2250     avctx->debug_mv = debug_mv;
2251     avctx->debug = debug;
2252     avctx->workaround_bugs = workaround_bugs;
2253     avctx->lowres = lowres;
2254     if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2255     avctx->idct_algo= idct;
2256     if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2257     avctx->skip_frame= skip_frame;
2258     avctx->skip_idct= skip_idct;
2259     avctx->skip_loop_filter= skip_loop_filter;
2260     avctx->error_recognition= error_recognition;
2261     avctx->error_concealment= error_concealment;
2262     avcodec_thread_init(avctx, thread_count);
2263
2264     set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2265
2266     if (!codec ||
2267         avcodec_open(avctx, codec) < 0)
2268         return -1;
2269
2270     /* prepare audio output */
2271     if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2272         wanted_spec.freq = avctx->sample_rate;
2273         wanted_spec.format = AUDIO_S16SYS;
2274         wanted_spec.channels = avctx->channels;
2275         wanted_spec.silence = 0;
2276         wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2277         wanted_spec.callback = sdl_audio_callback;
2278         wanted_spec.userdata = is;
2279         if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2280             fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2281             return -1;
2282         }
2283         is->audio_hw_buf_size = spec.size;
2284         is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2285     }
2286
2287     ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2288     switch(avctx->codec_type) {
2289     case AVMEDIA_TYPE_AUDIO:
2290         is->audio_stream = stream_index;
2291         is->audio_st = ic->streams[stream_index];
2292         is->audio_buf_size = 0;
2293         is->audio_buf_index = 0;
2294
2295         /* init averaging filter */
2296         is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2297         is->audio_diff_avg_count = 0;
2298         /* since we do not have a precise anough audio fifo fullness,
2299            we correct audio sync only if larger than this threshold */
2300         is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2301
2302         memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2303         packet_queue_init(&is->audioq);
2304         SDL_PauseAudio(0);
2305         break;
2306     case AVMEDIA_TYPE_VIDEO:
2307         is->video_stream = stream_index;
2308         is->video_st = ic->streams[stream_index];
2309
2310 //        is->video_current_pts_time = av_gettime();
2311
2312         packet_queue_init(&is->videoq);
2313         is->video_tid = SDL_CreateThread(video_thread, is);
2314         break;
2315     case AVMEDIA_TYPE_SUBTITLE:
2316         is->subtitle_stream = stream_index;
2317         is->subtitle_st = ic->streams[stream_index];
2318         packet_queue_init(&is->subtitleq);
2319
2320         is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2321         break;
2322     default:
2323         break;
2324     }
2325     return 0;
2326 }
2327
2328 static void stream_component_close(VideoState *is, int stream_index)
2329 {
2330     AVFormatContext *ic = is->ic;
2331     AVCodecContext *avctx;
2332
2333     if (stream_index < 0 || stream_index >= ic->nb_streams)
2334         return;
2335     avctx = ic->streams[stream_index]->codec;
2336
2337     switch(avctx->codec_type) {
2338     case AVMEDIA_TYPE_AUDIO:
2339         packet_queue_abort(&is->audioq);
2340
2341         SDL_CloseAudio();
2342
2343         packet_queue_end(&is->audioq);
2344         if (is->reformat_ctx)
2345             av_audio_convert_free(is->reformat_ctx);
2346         is->reformat_ctx = NULL;
2347         break;
2348     case AVMEDIA_TYPE_VIDEO:
2349         packet_queue_abort(&is->videoq);
2350
2351         /* note: we also signal this mutex to make sure we deblock the
2352            video thread in all cases */
2353         SDL_LockMutex(is->pictq_mutex);
2354         SDL_CondSignal(is->pictq_cond);
2355         SDL_UnlockMutex(is->pictq_mutex);
2356
2357         SDL_WaitThread(is->video_tid, NULL);
2358
2359         packet_queue_end(&is->videoq);
2360         break;
2361     case AVMEDIA_TYPE_SUBTITLE:
2362         packet_queue_abort(&is->subtitleq);
2363
2364         /* note: we also signal this mutex to make sure we deblock the
2365            video thread in all cases */
2366         SDL_LockMutex(is->subpq_mutex);
2367         is->subtitle_stream_changed = 1;
2368
2369         SDL_CondSignal(is->subpq_cond);
2370         SDL_UnlockMutex(is->subpq_mutex);
2371
2372         SDL_WaitThread(is->subtitle_tid, NULL);
2373
2374         packet_queue_end(&is->subtitleq);
2375         break;
2376     default:
2377         break;
2378     }
2379
2380     ic->streams[stream_index]->discard = AVDISCARD_ALL;
2381     avcodec_close(avctx);
2382     switch(avctx->codec_type) {
2383     case AVMEDIA_TYPE_AUDIO:
2384         is->audio_st = NULL;
2385         is->audio_stream = -1;
2386         break;
2387     case AVMEDIA_TYPE_VIDEO:
2388         is->video_st = NULL;
2389         is->video_stream = -1;
2390         break;
2391     case AVMEDIA_TYPE_SUBTITLE:
2392         is->subtitle_st = NULL;
2393         is->subtitle_stream = -1;
2394         break;
2395     default:
2396         break;
2397     }
2398 }
2399
2400 /* since we have only one decoding thread, we can use a global
2401    variable instead of a thread local variable */
2402 static VideoState *global_video_state;
2403
2404 static int decode_interrupt_cb(void)
2405 {
2406     return (global_video_state && global_video_state->abort_request);
2407 }
2408
2409 /* this thread gets the stream from the disk or the network */
2410 static int decode_thread(void *arg)
2411 {
2412     VideoState *is = arg;
2413     AVFormatContext *ic;
2414     int err, i, ret;
2415     int st_index[AVMEDIA_TYPE_NB];
2416     AVPacket pkt1, *pkt = &pkt1;
2417     AVFormatParameters params, *ap = &params;
2418     int eof=0;
2419     int pkt_in_play_range = 0;
2420
2421     ic = avformat_alloc_context();
2422
2423     memset(st_index, -1, sizeof(st_index));
2424     is->video_stream = -1;
2425     is->audio_stream = -1;
2426     is->subtitle_stream = -1;
2427
2428     global_video_state = is;
2429     url_set_interrupt_cb(decode_interrupt_cb);
2430
2431     memset(ap, 0, sizeof(*ap));
2432
2433     ap->prealloced_context = 1;
2434     ap->width = frame_width;
2435     ap->height= frame_height;
2436     ap->time_base= (AVRational){1, 25};
2437     ap->pix_fmt = frame_pix_fmt;
2438
2439     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2440
2441     err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2442     if (err < 0) {
2443         print_error(is->filename, err);
2444         ret = -1;
2445         goto fail;
2446     }
2447     is->ic = ic;
2448
2449     if(genpts)
2450         ic->flags |= AVFMT_FLAG_GENPTS;
2451
2452     err = av_find_stream_info(ic);
2453     if (err < 0) {
2454         fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2455         ret = -1;
2456         goto fail;
2457     }
2458     if(ic->pb)
2459         ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2460
2461     if(seek_by_bytes<0)
2462         seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2463
2464     /* if seeking requested, we execute it */
2465     if (start_time != AV_NOPTS_VALUE) {
2466         int64_t timestamp;
2467
2468         timestamp = start_time;
2469         /* add the stream start time */
2470         if (ic->start_time != AV_NOPTS_VALUE)
2471             timestamp += ic->start_time;
2472         ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2473         if (ret < 0) {
2474             fprintf(stderr, "%s: could not seek to position %0.3f\n",
2475                     is->filename, (double)timestamp / AV_TIME_BASE);
2476         }
2477     }
2478
2479     for (i = 0; i < ic->nb_streams; i++)
2480         ic->streams[i]->discard = AVDISCARD_ALL;
2481     if (!video_disable)
2482         st_index[AVMEDIA_TYPE_VIDEO] =
2483             av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2484                                 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2485     if (!audio_disable)
2486         st_index[AVMEDIA_TYPE_AUDIO] =
2487             av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2488                                 wanted_stream[AVMEDIA_TYPE_AUDIO],
2489                                 st_index[AVMEDIA_TYPE_VIDEO],
2490                                 NULL, 0);
2491     if (!video_disable)
2492         st_index[AVMEDIA_TYPE_SUBTITLE] =
2493             av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2494                                 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2495                                 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2496                                  st_index[AVMEDIA_TYPE_AUDIO] :
2497                                  st_index[AVMEDIA_TYPE_VIDEO]),
2498                                 NULL, 0);
2499     if (show_status) {
2500         dump_format(ic, 0, is->filename, 0);
2501     }
2502
2503     /* open the streams */
2504     if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2505         stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2506     }
2507
2508     ret=-1;
2509     if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2510         ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2511     }
2512     is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2513     if(ret<0) {
2514         if (!display_disable)
2515             is->show_audio = 2;
2516     }
2517
2518     if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2519         stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2520     }
2521
2522     if (is->video_stream < 0 && is->audio_stream < 0) {
2523         fprintf(stderr, "%s: could not open codecs\n", is->filename);
2524         ret = -1;
2525         goto fail;
2526     }
2527
2528     for(;;) {
2529         if (is->abort_request)
2530             break;
2531         if (is->paused != is->last_paused) {
2532             is->last_paused = is->paused;
2533             if (is->paused)
2534                 is->read_pause_return= av_read_pause(ic);
2535             else
2536                 av_read_play(ic);
2537         }
2538 #if CONFIG_RTSP_DEMUXER
2539         if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2540             /* wait 10 ms to avoid trying to get another packet */
2541             /* XXX: horrible */
2542             SDL_Delay(10);
2543             continue;
2544         }
2545 #endif
2546         if (is->seek_req) {
2547             int64_t seek_target= is->seek_pos;
2548             int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2549             int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2550 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2551 //      of the seek_pos/seek_rel variables
2552
2553             ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2554             if (ret < 0) {
2555                 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2556             }else{
2557                 if (is->audio_stream >= 0) {
2558                     packet_queue_flush(&is->audioq);
2559                     packet_queue_put(&is->audioq, &flush_pkt);
2560                 }
2561                 if (is->subtitle_stream >= 0) {
2562                     packet_queue_flush(&is->subtitleq);
2563                     packet_queue_put(&is->subtitleq, &flush_pkt);
2564                 }
2565                 if (is->video_stream >= 0) {
2566                     packet_queue_flush(&is->videoq);
2567                     packet_queue_put(&is->videoq, &flush_pkt);
2568                 }
2569             }
2570             is->seek_req = 0;
2571             eof= 0;
2572         }
2573
2574         /* if the queue are full, no need to read more */
2575         if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2576             || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2577                 && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
2578                 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2579             /* wait 10 ms */
2580             SDL_Delay(10);
2581             continue;
2582         }
2583         if(eof) {
2584             if(is->video_stream >= 0){
2585                 av_init_packet(pkt);
2586                 pkt->data=NULL;
2587                 pkt->size=0;
2588                 pkt->stream_index= is->video_stream;
2589                 packet_queue_put(&is->videoq, pkt);
2590             }
2591             SDL_Delay(10);
2592             if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2593                 if(loop!=1 && (!loop || --loop)){
2594                     stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2595                 }else if(autoexit){
2596                     ret=AVERROR_EOF;
2597                     goto fail;
2598                 }
2599             }
2600             continue;
2601         }
2602         ret = av_read_frame(ic, pkt);
2603         if (ret < 0) {
2604             if (ret == AVERROR_EOF || url_feof(ic->pb))
2605                 eof=1;
2606             if (url_ferror(ic->pb))
2607                 break;
2608             SDL_Delay(100); /* wait for user event */
2609             continue;
2610         }
2611         /* check if packet is in play range specified by user, then queue, otherwise discard */
2612         pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2613                 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2614                 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2615                 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2616                 <= ((double)duration/1000000);
2617         if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2618             packet_queue_put(&is->audioq, pkt);
2619         } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2620             packet_queue_put(&is->videoq, pkt);
2621         } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2622             packet_queue_put(&is->subtitleq, pkt);
2623         } else {
2624             av_free_packet(pkt);
2625         }
2626     }
2627     /* wait until the end */
2628     while (!is->abort_request) {
2629         SDL_Delay(100);
2630     }
2631
2632     ret = 0;
2633  fail:
2634     /* disable interrupting */
2635     global_video_state = NULL;
2636
2637     /* close each stream */
2638     if (is->audio_stream >= 0)
2639         stream_component_close(is, is->audio_stream);
2640     if (is->video_stream >= 0)
2641         stream_component_close(is, is->video_stream);
2642     if (is->subtitle_stream >= 0)
2643         stream_component_close(is, is->subtitle_stream);
2644     if (is->ic) {
2645         av_close_input_file(is->ic);
2646         is->ic = NULL; /* safety */
2647     }
2648     url_set_interrupt_cb(NULL);
2649
2650     if (ret != 0) {
2651         SDL_Event event;
2652
2653         event.type = FF_QUIT_EVENT;
2654         event.user.data1 = is;
2655         SDL_PushEvent(&event);
2656     }
2657     return 0;
2658 }
2659
2660 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2661 {
2662     VideoState *is;
2663
2664     is = av_mallocz(sizeof(VideoState));
2665     if (!is)
2666         return NULL;
2667     av_strlcpy(is->filename, filename, sizeof(is->filename));
2668     is->iformat = iformat;
2669     is->ytop = 0;
2670     is->xleft = 0;
2671
2672     /* start video display */
2673     is->pictq_mutex = SDL_CreateMutex();
2674     is->pictq_cond = SDL_CreateCond();
2675
2676     is->subpq_mutex = SDL_CreateMutex();
2677     is->subpq_cond = SDL_CreateCond();
2678
2679     is->av_sync_type = av_sync_type;
2680     is->parse_tid = SDL_CreateThread(decode_thread, is);
2681     if (!is->parse_tid) {
2682         av_free(is);
2683         return NULL;
2684     }
2685     return is;
2686 }
2687
2688 static void stream_cycle_channel(VideoState *is, int codec_type)
2689 {
2690     AVFormatContext *ic = is->ic;
2691     int start_index, stream_index;
2692     AVStream *st;
2693
2694     if (codec_type == AVMEDIA_TYPE_VIDEO)
2695         start_index = is->video_stream;
2696     else if (codec_type == AVMEDIA_TYPE_AUDIO)
2697         start_index = is->audio_stream;
2698     else
2699         start_index = is->subtitle_stream;
2700     if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2701         return;
2702     stream_index = start_index;
2703     for(;;) {
2704         if (++stream_index >= is->ic->nb_streams)
2705         {
2706             if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2707             {
2708                 stream_index = -1;
2709                 goto the_end;
2710             } else
2711                 stream_index = 0;
2712         }
2713         if (stream_index == start_index)
2714             return;
2715         st = ic->streams[stream_index];
2716         if (st->codec->codec_type == codec_type) {
2717             /* check that parameters are OK */
2718             switch(codec_type) {
2719             case AVMEDIA_TYPE_AUDIO:
2720                 if (st->codec->sample_rate != 0 &&
2721                     st->codec->channels != 0)
2722                     goto the_end;
2723                 break;
2724             case AVMEDIA_TYPE_VIDEO:
2725             case AVMEDIA_TYPE_SUBTITLE:
2726                 goto the_end;
2727             default:
2728                 break;
2729             }
2730         }
2731     }
2732  the_end:
2733     stream_component_close(is, start_index);
2734     stream_component_open(is, stream_index);
2735 }
2736
2737
2738 static void toggle_full_screen(void)
2739 {
2740     is_full_screen = !is_full_screen;
2741     if (!fs_screen_width) {
2742         /* use default SDL method */
2743 //        SDL_WM_ToggleFullScreen(screen);
2744     }
2745     video_open(cur_stream);
2746 }
2747
2748 static void toggle_pause(void)
2749 {
2750     if (cur_stream)
2751         stream_pause(cur_stream);
2752     step = 0;
2753 }
2754
2755 static void step_to_next_frame(void)
2756 {
2757     if (cur_stream) {
2758         /* if the stream is paused unpause it, then step */
2759         if (cur_stream->paused)
2760             stream_pause(cur_stream);
2761     }
2762     step = 1;
2763 }
2764
2765 static void toggle_audio_display(void)
2766 {
2767     if (cur_stream) {
2768         int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2769         cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2770         fill_rectangle(screen,
2771                     cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2772                     bgcolor);
2773         SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2774     }
2775 }
2776
2777 /* handle an event sent by the GUI */
2778 static void event_loop(void)
2779 {
2780     SDL_Event event;
2781     double incr, pos, frac;
2782
2783     for(;;) {
2784         double x;
2785         SDL_WaitEvent(&event);
2786         switch(event.type) {
2787         case SDL_KEYDOWN:
2788             if (exit_on_keydown) {
2789                 do_exit();
2790                 break;
2791             }
2792             switch(event.key.keysym.sym) {
2793             case SDLK_ESCAPE:
2794             case SDLK_q:
2795                 do_exit();
2796                 break;
2797             case SDLK_f:
2798                 toggle_full_screen();
2799                 break;
2800             case SDLK_p:
2801             case SDLK_SPACE:
2802                 toggle_pause();
2803                 break;
2804             case SDLK_s: //S: Step to next frame
2805                 step_to_next_frame();
2806                 break;
2807             case SDLK_a:
2808                 if (cur_stream)
2809                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2810                 break;
2811             case SDLK_v:
2812                 if (cur_stream)
2813                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2814                 break;
2815             case SDLK_t:
2816                 if (cur_stream)
2817                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2818                 break;
2819             case SDLK_w:
2820                 toggle_audio_display();
2821                 break;
2822             case SDLK_LEFT:
2823                 incr = -10.0;
2824                 goto do_seek;
2825             case SDLK_RIGHT:
2826                 incr = 10.0;
2827                 goto do_seek;
2828             case SDLK_UP:
2829                 incr = 60.0;
2830                 goto do_seek;
2831             case SDLK_DOWN:
2832                 incr = -60.0;
2833             do_seek:
2834                 if (cur_stream) {
2835                     if (seek_by_bytes) {
2836                         if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2837                             pos= cur_stream->video_current_pos;
2838                         }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2839                             pos= cur_stream->audio_pkt.pos;
2840                         }else
2841                             pos = url_ftell(cur_stream->ic->pb);
2842                         if (cur_stream->ic->bit_rate)
2843                             incr *= cur_stream->ic->bit_rate / 8.0;
2844                         else
2845                             incr *= 180000.0;
2846                         pos += incr;
2847                         stream_seek(cur_stream, pos, incr, 1);
2848                     } else {
2849                         pos = get_master_clock(cur_stream);
2850                         pos += incr;
2851                         stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2852                     }
2853                 }
2854                 break;
2855             default:
2856                 break;
2857             }
2858             break;
2859         case SDL_MOUSEBUTTONDOWN:
2860             if (exit_on_mousedown) {
2861                 do_exit();
2862                 break;
2863             }
2864         case SDL_MOUSEMOTION:
2865             if(event.type ==SDL_MOUSEBUTTONDOWN){
2866                 x= event.button.x;
2867             }else{
2868                 if(event.motion.state != SDL_PRESSED)
2869                     break;
2870                 x= event.motion.x;
2871             }
2872             if (cur_stream) {
2873                 if(seek_by_bytes || cur_stream->ic->duration<=0){
2874                     uint64_t size=  url_fsize(cur_stream->ic->pb);
2875                     stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2876                 }else{
2877                     int64_t ts;
2878                     int ns, hh, mm, ss;
2879                     int tns, thh, tmm, tss;
2880                     tns = cur_stream->ic->duration/1000000LL;
2881                     thh = tns/3600;
2882                     tmm = (tns%3600)/60;
2883                     tss = (tns%60);
2884                     frac = x/cur_stream->width;
2885                     ns = frac*tns;
2886                     hh = ns/3600;
2887                     mm = (ns%3600)/60;
2888                     ss = (ns%60);
2889                     fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d)       \n", frac*100,
2890                             hh, mm, ss, thh, tmm, tss);
2891                     ts = frac*cur_stream->ic->duration;
2892                     if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2893                         ts += cur_stream->ic->start_time;
2894                     stream_seek(cur_stream, ts, 0, 0);
2895                 }
2896             }
2897             break;
2898         case SDL_VIDEORESIZE:
2899             if (cur_stream) {
2900                 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2901                                           SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2902                 screen_width = cur_stream->width = event.resize.w;
2903                 screen_height= cur_stream->height= event.resize.h;
2904             }
2905             break;
2906         case SDL_QUIT:
2907         case FF_QUIT_EVENT:
2908             do_exit();
2909             break;
2910         case FF_ALLOC_EVENT:
2911             video_open(event.user.data1);
2912             alloc_picture(event.user.data1);
2913             break;
2914         case FF_REFRESH_EVENT:
2915             video_refresh_timer(event.user.data1);
2916             cur_stream->refresh=0;
2917             break;
2918         default:
2919             break;
2920         }
2921     }
2922 }
2923
2924 static void opt_frame_size(const char *arg)
2925 {
2926     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2927         fprintf(stderr, "Incorrect frame size\n");
2928         exit(1);
2929     }
2930     if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2931         fprintf(stderr, "Frame size must be a multiple of 2\n");
2932         exit(1);
2933     }
2934 }
2935
2936 static int opt_width(const char *opt, const char *arg)
2937 {
2938     screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2939     return 0;
2940 }
2941
2942 static int opt_height(const char *opt, const char *arg)
2943 {
2944     screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2945     return 0;
2946 }
2947
2948 static void opt_format(const char *arg)
2949 {
2950     file_iformat = av_find_input_format(arg);
2951     if (!file_iformat) {
2952         fprintf(stderr, "Unknown input format: %s\n", arg);
2953         exit(1);
2954     }
2955 }
2956
2957 static void opt_frame_pix_fmt(const char *arg)
2958 {
2959     frame_pix_fmt = av_get_pix_fmt(arg);
2960 }
2961
2962 static int opt_sync(const char *opt, const char *arg)
2963 {
2964     if (!strcmp(arg, "audio"))
2965         av_sync_type = AV_SYNC_AUDIO_MASTER;
2966     else if (!strcmp(arg, "video"))
2967         av_sync_type = AV_SYNC_VIDEO_MASTER;
2968     else if (!strcmp(arg, "ext"))
2969         av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2970     else {
2971         fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2972         exit(1);
2973     }
2974     return 0;
2975 }
2976
2977 static int opt_seek(const char *opt, const char *arg)
2978 {
2979     start_time = parse_time_or_die(opt, arg, 1);
2980     return 0;
2981 }
2982
2983 static int opt_duration(const char *opt, const char *arg)
2984 {
2985     duration = parse_time_or_die(opt, arg, 1);
2986     return 0;
2987 }
2988
2989 static int opt_debug(const char *opt, const char *arg)
2990 {
2991     av_log_set_level(99);
2992     debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2993     return 0;
2994 }
2995
2996 static int opt_vismv(const char *opt, const char *arg)
2997 {
2998     debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2999     return 0;
3000 }
3001
3002 static int opt_thread_count(const char *opt, const char *arg)
3003 {
3004     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3005 #if !HAVE_THREADS
3006     fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
3007 #endif
3008     return 0;
3009 }
3010
3011 static const OptionDef options[] = {
3012 #include "cmdutils_common_opts.h"
3013     { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
3014     { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
3015     { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3016     { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
3017     { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
3018     { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
3019     { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
3020     { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
3021     { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
3022     { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
3023     { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play  \"duration\" seconds of audio/video", "duration" },
3024     { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3025     { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3026     { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3027     { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3028     { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3029     { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3030     { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3031     { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3032     { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3033     { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3034     { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3035     { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3036     { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3037     { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3038     { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3039     { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo",  "algo" },
3040     { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)",  "threshold" },
3041     { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options",  "bit_mask" },
3042     { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3043     { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3044     { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3045     { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3046     { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3047     { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3048     { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3049     { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3050 #if CONFIG_AVFILTER
3051     { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3052 #endif
3053     { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3054     { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3055     { NULL, },
3056 };
3057
3058 static void show_usage(void)
3059 {
3060     printf("Simple media player\n");
3061     printf("usage: ffplay [options] input_file\n");
3062     printf("\n");
3063 }
3064
3065 static void show_help(void)
3066 {
3067     av_log_set_callback(log_callback_help);
3068     show_usage();
3069     show_help_options(options, "Main options:\n",
3070                       OPT_EXPERT, 0);
3071     show_help_options(options, "\nAdvanced options:\n",
3072                       OPT_EXPERT, OPT_EXPERT);
3073     printf("\n");
3074     av_opt_show2(avcodec_opts[0], NULL,
3075                  AV_OPT_FLAG_DECODING_PARAM, 0);
3076     printf("\n");
3077     av_opt_show2(avformat_opts, NULL,
3078                  AV_OPT_FLAG_DECODING_PARAM, 0);
3079 #if !CONFIG_AVFILTER
3080     printf("\n");
3081     av_opt_show2(sws_opts, NULL,
3082                  AV_OPT_FLAG_ENCODING_PARAM, 0);
3083 #endif
3084     printf("\nWhile playing:\n"
3085            "q, ESC              quit\n"
3086            "f                   toggle full screen\n"
3087            "p, SPC              pause\n"
3088            "a                   cycle audio channel\n"
3089            "v                   cycle video channel\n"
3090            "t                   cycle subtitle channel\n"
3091            "w                   show audio waves\n"
3092            "s                   activate frame-step mode\n"
3093            "left/right          seek backward/forward 10 seconds\n"
3094            "down/up             seek backward/forward 1 minute\n"
3095            "mouse click         seek to percentage in file corresponding to fraction of width\n"
3096            );
3097 }
3098
3099 static void opt_input_file(const char *filename)
3100 {
3101     if (input_filename) {
3102         fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3103                 filename, input_filename);
3104         exit(1);
3105     }
3106     if (!strcmp(filename, "-"))
3107         filename = "pipe:";
3108     input_filename = filename;
3109 }
3110
3111 /* Called from the main */
3112 int main(int argc, char **argv)
3113 {
3114     int flags;
3115
3116     av_log_set_flags(AV_LOG_SKIP_REPEATED);
3117
3118     /* register all codecs, demux and protocols */
3119     avcodec_register_all();
3120 #if CONFIG_AVDEVICE
3121     avdevice_register_all();
3122 #endif
3123 #if CONFIG_AVFILTER
3124     avfilter_register_all();
3125 #endif
3126     av_register_all();
3127
3128     init_opts();
3129
3130     show_banner();
3131
3132     parse_options(argc, argv, options, opt_input_file);
3133
3134     if (!input_filename) {
3135         show_usage();
3136         fprintf(stderr, "An input file must be specified\n");
3137         fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3138         exit(1);
3139     }
3140
3141     if (display_disable) {
3142         video_disable = 1;
3143     }
3144     flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3145 #if !defined(__MINGW32__) && !defined(__APPLE__)
3146     flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3147 #endif
3148     if (SDL_Init (flags)) {
3149         fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3150         exit(1);
3151     }
3152
3153     if (!display_disable) {
3154 #if HAVE_SDL_VIDEO_SIZE
3155         const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3156         fs_screen_width = vi->current_w;
3157         fs_screen_height = vi->current_h;
3158 #endif
3159     }
3160
3161     SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3162     SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3163     SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3164
3165     av_init_packet(&flush_pkt);
3166     flush_pkt.data= "FLUSH";
3167
3168     cur_stream = stream_open(input_filename, file_iformat);
3169
3170     event_loop();
3171
3172     /* never returns */
3173
3174     return 0;
3175 }