2 * FFplay : Simple Media Player based on the ffmpeg libraries
3 * Copyright (c) 2003 Fabrice Bellard
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 #define HAVE_AV_CONFIG_H
25 #include <SDL_thread.h>
28 #undef main /* We don't want SDL to override our main() */
41 DosGetInfoBlocks(&tib, &pib);
43 // Change flag from VIO to PM:
44 if (pib->pib_ultype==2) pib->pib_ultype = 3;
48 #if defined(__linux__)
58 #define MAX_VIDEOQ_SIZE (5 * 256 * 1024)
59 #define MAX_AUDIOQ_SIZE (5 * 16 * 1024)
61 /* SDL audio buffer size, in samples. Should be small to have precise
62 A/V sync as SDL does not have hardware buffer fullness info. */
63 #define SDL_AUDIO_BUFFER_SIZE 1024
65 /* no AV sync correction is done if below the AV sync threshold */
66 #define AV_SYNC_THRESHOLD 0.01
67 /* no AV correction is done if too big error */
68 #define AV_NOSYNC_THRESHOLD 10.0
70 /* maximum audio speed change to get correct sync */
71 #define SAMPLE_CORRECTION_PERCENT_MAX 10
73 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
74 #define AUDIO_DIFF_AVG_NB 20
76 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
77 #define SAMPLE_ARRAY_SIZE (2*65536)
79 typedef struct PacketQueue {
80 AVPacketList *first_pkt, *last_pkt;
88 #define VIDEO_PICTURE_QUEUE_SIZE 1
90 typedef struct VideoPicture {
91 double pts; /* presentation time stamp for this picture */
93 int width, height; /* source height & width */
98 AV_SYNC_AUDIO_MASTER, /* default choice */
100 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
103 typedef struct VideoState {
104 SDL_Thread *parse_tid;
105 SDL_Thread *video_tid;
106 AVInputFormat *iformat;
115 int dtg_active_format;
120 double external_clock; /* external clock base */
121 int64_t external_clock_time;
124 double audio_diff_cum; /* used for AV difference average computation */
125 double audio_diff_avg_coef;
126 double audio_diff_threshold;
127 int audio_diff_avg_count;
130 int audio_hw_buf_size;
131 /* samples output by the codec. we reserve more space for avsync
133 uint8_t audio_buf[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
134 unsigned int audio_buf_size; /* in bytes */
135 int audio_buf_index; /* in bytes */
137 uint8_t *audio_pkt_data;
140 int show_audio; /* if true, display audio samples */
141 int16_t sample_array[SAMPLE_ARRAY_SIZE];
142 int sample_array_index;
146 double frame_last_pts;
147 double frame_last_delay;
152 double video_last_P_pts; /* pts of the last P picture (needed if B
153 frames are present) */
154 double video_current_pts; /* current displayed pts (different from
155 video_clock if frame fifos are used) */
156 int64_t video_current_pts_time; /* time at which we updated
157 video_current_pts - used to
158 have running video pts */
159 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
160 int pictq_size, pictq_rindex, pictq_windex;
161 SDL_mutex *pictq_mutex;
162 SDL_cond *pictq_cond;
164 SDL_mutex *video_decoder_mutex;
165 SDL_mutex *audio_decoder_mutex;
167 // QETimer *video_timer;
169 int width, height, xleft, ytop;
172 void show_help(void);
173 static int audio_write_get_buf_size(VideoState *is);
175 /* options specified by the user */
176 static AVInputFormat *file_iformat;
177 static AVImageFormat *image_format;
178 static const char *input_filename;
179 static int fs_screen_width;
180 static int fs_screen_height;
181 static int screen_width = 640;
182 static int screen_height = 480;
183 static int audio_disable;
184 static int video_disable;
185 static int display_disable;
186 static int show_status;
187 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
188 static int64_t start_time = AV_NOPTS_VALUE;
189 static int debug = 0;
190 static int debug_mv = 0;
192 static int thread_count = 1;
193 static int workaround_bugs = 1;
195 static int lowres = 0;
196 static int idct = FF_IDCT_AUTO;
198 /* current context */
199 static int is_full_screen;
200 static VideoState *cur_stream;
201 static int64_t audio_callback_time;
203 #define FF_ALLOC_EVENT (SDL_USEREVENT)
204 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
205 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
209 /* packet queue handling */
210 static void packet_queue_init(PacketQueue *q)
212 memset(q, 0, sizeof(PacketQueue));
213 q->mutex = SDL_CreateMutex();
214 q->cond = SDL_CreateCond();
217 static void packet_queue_flush(PacketQueue *q)
219 AVPacketList *pkt, *pkt1;
221 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
223 av_free_packet(&pkt->pkt);
232 static void packet_queue_end(PacketQueue *q)
234 packet_queue_flush(q);
235 SDL_DestroyMutex(q->mutex);
236 SDL_DestroyCond(q->cond);
239 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
243 /* duplicate the packet */
244 if (av_dup_packet(pkt) < 0)
247 pkt1 = av_malloc(sizeof(AVPacketList));
254 SDL_LockMutex(q->mutex);
260 q->last_pkt->next = pkt1;
263 q->size += pkt1->pkt.size;
264 /* XXX: should duplicate packet data in DV case */
265 SDL_CondSignal(q->cond);
267 SDL_UnlockMutex(q->mutex);
271 static void packet_queue_abort(PacketQueue *q)
273 SDL_LockMutex(q->mutex);
275 q->abort_request = 1;
277 SDL_CondSignal(q->cond);
279 SDL_UnlockMutex(q->mutex);
282 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
283 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
288 SDL_LockMutex(q->mutex);
291 if (q->abort_request) {
298 q->first_pkt = pkt1->next;
302 q->size -= pkt1->pkt.size;
311 SDL_CondWait(q->cond, q->mutex);
314 SDL_UnlockMutex(q->mutex);
318 static inline void fill_rectangle(SDL_Surface *screen,
319 int x, int y, int w, int h, int color)
326 SDL_FillRect(screen, &rect, color);
330 /* draw only the border of a rectangle */
331 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
335 /* fill the background */
339 w2 = s->width - (x + w);
345 h2 = s->height - (y + h);
348 fill_rectangle(screen,
352 fill_rectangle(screen,
353 s->xleft + s->width - w2, s->ytop,
356 fill_rectangle(screen,
357 s->xleft + w1, s->ytop,
358 s->width - w1 - w2, h1,
360 fill_rectangle(screen,
361 s->xleft + w1, s->ytop + s->height - h2,
362 s->width - w1 - w2, h2,
367 static void video_image_display(VideoState *is)
371 int width, height, x, y;
374 vp = &is->pictq[is->pictq_rindex];
376 /* XXX: use variable in the frame */
377 if (is->video_st->codec.sample_aspect_ratio.num == 0)
380 aspect_ratio = av_q2d(is->video_st->codec.sample_aspect_ratio)
381 * is->video_st->codec.width / is->video_st->codec.height;;
382 if (aspect_ratio <= 0.0)
383 aspect_ratio = (float)is->video_st->codec.width /
384 (float)is->video_st->codec.height;
385 /* if an active format is indicated, then it overrides the
388 if (is->video_st->codec.dtg_active_format != is->dtg_active_format) {
389 is->dtg_active_format = is->video_st->codec.dtg_active_format;
390 printf("dtg_active_format=%d\n", is->dtg_active_format);
394 switch(is->video_st->codec.dtg_active_format) {
395 case FF_DTG_AFD_SAME:
400 aspect_ratio = 4.0 / 3.0;
402 case FF_DTG_AFD_16_9:
403 aspect_ratio = 16.0 / 9.0;
405 case FF_DTG_AFD_14_9:
406 aspect_ratio = 14.0 / 9.0;
408 case FF_DTG_AFD_4_3_SP_14_9:
409 aspect_ratio = 14.0 / 9.0;
411 case FF_DTG_AFD_16_9_SP_14_9:
412 aspect_ratio = 14.0 / 9.0;
414 case FF_DTG_AFD_SP_4_3:
415 aspect_ratio = 4.0 / 3.0;
420 /* XXX: we suppose the screen has a 1.0 pixel ratio */
422 width = ((int)rint(height * aspect_ratio)) & -3;
423 if (width > is->width) {
425 height = ((int)rint(width / aspect_ratio)) & -3;
427 x = (is->width - width) / 2;
428 y = (is->height - height) / 2;
429 if (!is->no_background) {
430 /* fill the background */
431 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
433 is->no_background = 0;
435 rect.x = is->xleft + x;
436 rect.y = is->xleft + y;
439 SDL_DisplayYUVOverlay(vp->bmp, &rect);
442 fill_rectangle(screen,
443 is->xleft, is->ytop, is->width, is->height,
444 QERGB(0x00, 0x00, 0x00));
449 static inline int compute_mod(int a, int b)
458 static void video_audio_display(VideoState *s)
460 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
461 int ch, channels, h, h2, bgcolor, fgcolor;
464 /* compute display index : center on currently output samples */
465 channels = s->audio_st->codec.channels;
466 nb_display_channels = channels;
469 delay = audio_write_get_buf_size(s);
472 /* to be more precise, we take into account the time spent since
473 the last buffer computation */
474 if (audio_callback_time) {
475 time_diff = av_gettime() - audio_callback_time;
476 delay += (time_diff * s->audio_st->codec.sample_rate) / 1000000;
479 delay -= s->width / 2;
480 if (delay < s->width)
482 i_start = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
483 s->last_i_start = i_start;
485 i_start = s->last_i_start;
488 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
489 fill_rectangle(screen,
490 s->xleft, s->ytop, s->width, s->height,
493 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
495 /* total height for one channel */
496 h = s->height / nb_display_channels;
497 /* graph height / 2 */
499 for(ch = 0;ch < nb_display_channels; ch++) {
501 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
502 for(x = 0; x < s->width; x++) {
503 y = (s->sample_array[i] * h2) >> 15;
510 fill_rectangle(screen,
511 s->xleft + x, ys, 1, y,
514 if (i >= SAMPLE_ARRAY_SIZE)
515 i -= SAMPLE_ARRAY_SIZE;
519 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
521 for(ch = 1;ch < nb_display_channels; ch++) {
522 y = s->ytop + ch * h;
523 fill_rectangle(screen,
524 s->xleft, y, s->width, 1,
527 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
530 /* display the current picture, if any */
531 static void video_display(VideoState *is)
533 if (is->audio_st && is->show_audio)
534 video_audio_display(is);
535 else if (is->video_st)
536 video_image_display(is);
539 static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
542 event.type = FF_REFRESH_EVENT;
543 event.user.data1 = opaque;
544 SDL_PushEvent(&event);
545 return 0; /* 0 means stop timer */
548 /* schedule a video refresh in 'delay' ms */
549 static void schedule_refresh(VideoState *is, int delay)
551 SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
554 /* get the current audio clock value */
555 static double get_audio_clock(VideoState *is)
558 int hw_buf_size, bytes_per_sec;
559 pts = is->audio_clock;
560 hw_buf_size = audio_write_get_buf_size(is);
563 bytes_per_sec = is->audio_st->codec.sample_rate *
564 2 * is->audio_st->codec.channels;
567 pts -= (double)hw_buf_size / bytes_per_sec;
571 /* get the current video clock value */
572 static double get_video_clock(VideoState *is)
578 delta = (av_gettime() - is->video_current_pts_time) / 1000000.0;
580 return is->video_current_pts + delta;
583 /* get the current external clock value */
584 static double get_external_clock(VideoState *is)
588 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
591 /* get the current master clock value */
592 static double get_master_clock(VideoState *is)
596 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
598 val = get_video_clock(is);
600 val = get_audio_clock(is);
601 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
603 val = get_audio_clock(is);
605 val = get_video_clock(is);
607 val = get_external_clock(is);
612 /* seek in the stream */
613 static void stream_seek(VideoState *is, int64_t pos, int rel)
617 is->seek_flags = rel < 0 ? AVSEEK_FLAG_BACKWARD : 0;
620 /* pause or resume the video */
621 static void stream_pause(VideoState *is)
623 is->paused = !is->paused;
625 is->video_current_pts = get_video_clock(is);
629 /* called to display each frame */
630 static void video_refresh_timer(void *opaque)
632 VideoState *is = opaque;
634 double actual_delay, delay, sync_threshold, ref_clock, diff;
638 if (is->pictq_size == 0) {
639 /* if no picture, need to wait */
640 schedule_refresh(is, 1);
642 /* dequeue the picture */
643 vp = &is->pictq[is->pictq_rindex];
645 /* update current video pts */
646 is->video_current_pts = vp->pts;
647 is->video_current_pts_time = av_gettime();
649 /* compute nominal delay */
650 delay = vp->pts - is->frame_last_pts;
651 if (delay <= 0 || delay >= 1.0) {
652 /* if incorrect delay, use previous one */
653 delay = is->frame_last_delay;
655 is->frame_last_delay = delay;
656 is->frame_last_pts = vp->pts;
658 /* update delay to follow master synchronisation source */
659 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
660 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
661 /* if video is slave, we try to correct big delays by
662 duplicating or deleting a frame */
663 ref_clock = get_master_clock(is);
664 diff = vp->pts - ref_clock;
666 /* skip or repeat frame. We take into account the
667 delay to compute the threshold. I still don't know
668 if it is the best guess */
669 sync_threshold = AV_SYNC_THRESHOLD;
670 if (delay > sync_threshold)
671 sync_threshold = delay;
672 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
673 if (diff <= -sync_threshold)
675 else if (diff >= sync_threshold)
680 is->frame_timer += delay;
681 /* compute the REAL delay (we need to do that to avoid
683 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
684 if (actual_delay < 0.010) {
685 /* XXX: should skip picture */
686 actual_delay = 0.010;
688 /* launch timer for next picture */
689 schedule_refresh(is, (int)(actual_delay * 1000 + 0.5));
691 #if defined(DEBUG_SYNC)
692 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
693 delay, actual_delay, vp->pts, -diff);
696 /* display picture */
699 /* update queue size and signal for next picture */
700 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
701 is->pictq_rindex = 0;
703 SDL_LockMutex(is->pictq_mutex);
705 SDL_CondSignal(is->pictq_cond);
706 SDL_UnlockMutex(is->pictq_mutex);
708 } else if (is->audio_st) {
709 /* draw the next audio frame */
711 schedule_refresh(is, 40);
713 /* if only audio stream, then display the audio bars (better
714 than nothing, just to test the implementation */
716 /* display picture */
719 schedule_refresh(is, 100);
722 static int64_t last_time;
727 cur_time = av_gettime();
728 if (!last_time || (cur_time - last_time) >= 500 * 1000) {
732 aqsize = is->audioq.size;
734 vqsize = is->videoq.size;
736 if (is->audio_st && is->video_st)
737 av_diff = get_audio_clock(is) - get_video_clock(is);
738 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB \r",
739 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024);
741 last_time = cur_time;
746 /* allocate a picture (needs to do that in main thread to avoid
747 potential locking problems */
748 static void alloc_picture(void *opaque)
750 VideoState *is = opaque;
753 vp = &is->pictq[is->pictq_windex];
756 SDL_FreeYUVOverlay(vp->bmp);
759 /* XXX: use generic function */
760 /* XXX: disable overlay if no hardware acceleration or if RGB format */
761 switch(is->video_st->codec.pix_fmt) {
762 case PIX_FMT_YUV420P:
763 case PIX_FMT_YUV422P:
764 case PIX_FMT_YUV444P:
766 case PIX_FMT_YUV410P:
767 case PIX_FMT_YUV411P:
775 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec.width,
776 is->video_st->codec.height,
779 vp->width = is->video_st->codec.width;
780 vp->height = is->video_st->codec.height;
782 SDL_LockMutex(is->pictq_mutex);
784 SDL_CondSignal(is->pictq_cond);
785 SDL_UnlockMutex(is->pictq_mutex);
788 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts)
794 /* wait until we have space to put a new picture */
795 SDL_LockMutex(is->pictq_mutex);
796 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
797 !is->videoq.abort_request) {
798 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
800 SDL_UnlockMutex(is->pictq_mutex);
802 if (is->videoq.abort_request)
805 vp = &is->pictq[is->pictq_windex];
807 /* alloc or resize hardware picture buffer */
809 vp->width != is->video_st->codec.width ||
810 vp->height != is->video_st->codec.height) {
815 /* the allocation must be done in the main thread to avoid
817 event.type = FF_ALLOC_EVENT;
818 event.user.data1 = is;
819 SDL_PushEvent(&event);
821 /* wait until the picture is allocated */
822 SDL_LockMutex(is->pictq_mutex);
823 while (!vp->allocated && !is->videoq.abort_request) {
824 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
826 SDL_UnlockMutex(is->pictq_mutex);
828 if (is->videoq.abort_request)
832 /* if the frame is not skipped, then display it */
834 /* get a pointer on the bitmap */
835 SDL_LockYUVOverlay (vp->bmp);
837 dst_pix_fmt = PIX_FMT_YUV420P;
838 pict.data[0] = vp->bmp->pixels[0];
839 pict.data[1] = vp->bmp->pixels[2];
840 pict.data[2] = vp->bmp->pixels[1];
842 pict.linesize[0] = vp->bmp->pitches[0];
843 pict.linesize[1] = vp->bmp->pitches[2];
844 pict.linesize[2] = vp->bmp->pitches[1];
845 img_convert(&pict, dst_pix_fmt,
846 (AVPicture *)src_frame, is->video_st->codec.pix_fmt,
847 is->video_st->codec.width, is->video_st->codec.height);
848 /* update the bitmap content */
849 SDL_UnlockYUVOverlay(vp->bmp);
853 /* now we can update the picture count */
854 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
855 is->pictq_windex = 0;
856 SDL_LockMutex(is->pictq_mutex);
858 SDL_UnlockMutex(is->pictq_mutex);
863 /* compute the exact PTS for the picture if it is omitted in the stream */
864 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1)
866 double frame_delay, pts;
871 /* update video clock with pts, if present */
872 is->video_clock = pts;
874 pts = is->video_clock;
876 /* update video clock for next frame */
877 frame_delay = av_q2d(is->video_st->codec.time_base);
878 /* for MPEG2, the frame can be repeated, so we update the
880 if (src_frame->repeat_pict) {
881 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
883 is->video_clock += frame_delay;
885 #if defined(DEBUG_SYNC) && 0
888 if (src_frame->pict_type == FF_B_TYPE)
890 else if (src_frame->pict_type == FF_I_TYPE)
894 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
898 return queue_picture(is, src_frame, pts);
901 static int video_thread(void *arg)
903 VideoState *is = arg;
904 AVPacket pkt1, *pkt = &pkt1;
905 int len1, got_picture;
906 AVFrame *frame= avcodec_alloc_frame();
910 while (is->paused && !is->videoq.abort_request) {
913 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
915 /* NOTE: ipts is the PTS of the _first_ picture beginning in
916 this packet, if any */
918 if (pkt->dts != AV_NOPTS_VALUE)
919 pts = av_q2d(is->video_st->time_base)*pkt->dts;
921 SDL_LockMutex(is->video_decoder_mutex);
922 len1 = avcodec_decode_video(&is->video_st->codec,
924 pkt->data, pkt->size);
925 SDL_UnlockMutex(is->video_decoder_mutex);
929 if (output_picture2(is, frame, pts) < 0)
935 stream_pause(cur_stream);
942 /* copy samples for viewing in editor window */
943 static void update_sample_display(VideoState *is, short *samples, int samples_size)
945 int size, len, channels;
947 channels = is->audio_st->codec.channels;
949 size = samples_size / sizeof(short);
951 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
954 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
956 is->sample_array_index += len;
957 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
958 is->sample_array_index = 0;
963 /* return the new audio buffer size (samples can be added or deleted
964 to get better sync if video or external master clock) */
965 static int synchronize_audio(VideoState *is, short *samples,
966 int samples_size1, double pts)
971 n = 2 * is->audio_st->codec.channels;
972 samples_size = samples_size1;
974 /* if not master, then we try to remove or add samples to correct the clock */
975 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
976 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
977 double diff, avg_diff;
978 int wanted_size, min_size, max_size, nb_samples;
980 ref_clock = get_master_clock(is);
981 diff = get_audio_clock(is) - ref_clock;
983 if (diff < AV_NOSYNC_THRESHOLD) {
984 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
985 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
986 /* not enough measures to have a correct estimate */
987 is->audio_diff_avg_count++;
989 /* estimate the A-V difference */
990 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
992 if (fabs(avg_diff) >= is->audio_diff_threshold) {
993 wanted_size = samples_size + ((int)(diff * is->audio_st->codec.sample_rate) * n);
994 nb_samples = samples_size / n;
996 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
997 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
998 if (wanted_size < min_size)
999 wanted_size = min_size;
1000 else if (wanted_size > max_size)
1001 wanted_size = max_size;
1003 /* add or remove samples to correction the synchro */
1004 if (wanted_size < samples_size) {
1005 /* remove samples */
1006 samples_size = wanted_size;
1007 } else if (wanted_size > samples_size) {
1008 uint8_t *samples_end, *q;
1012 nb = (samples_size - wanted_size);
1013 samples_end = (uint8_t *)samples + samples_size - n;
1014 q = samples_end + n;
1016 memcpy(q, samples_end, n);
1020 samples_size = wanted_size;
1024 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1025 diff, avg_diff, samples_size - samples_size1,
1026 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1030 /* too big difference : may be initial PTS errors, so
1032 is->audio_diff_avg_count = 0;
1033 is->audio_diff_cum = 0;
1037 return samples_size;
1040 /* decode one audio frame and returns its uncompressed size */
1041 static int audio_decode_frame(VideoState *is, uint8_t *audio_buf, double *pts_ptr)
1043 AVPacket *pkt = &is->audio_pkt;
1044 int n, len1, data_size;
1048 /* NOTE: the audio packet can contain several frames */
1049 while (is->audio_pkt_size > 0) {
1050 SDL_LockMutex(is->audio_decoder_mutex);
1051 len1 = avcodec_decode_audio(&is->audio_st->codec,
1052 (int16_t *)audio_buf, &data_size,
1053 is->audio_pkt_data, is->audio_pkt_size);
1054 SDL_UnlockMutex(is->audio_decoder_mutex);
1056 /* if error, we skip the frame */
1057 is->audio_pkt_size = 0;
1061 is->audio_pkt_data += len1;
1062 is->audio_pkt_size -= len1;
1065 /* if no pts, then compute it */
1066 pts = is->audio_clock;
1068 n = 2 * is->audio_st->codec.channels;
1069 is->audio_clock += (double)data_size /
1070 (double)(n * is->audio_st->codec.sample_rate);
1071 #if defined(DEBUG_SYNC)
1073 static double last_clock;
1074 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1075 is->audio_clock - last_clock,
1076 is->audio_clock, pts);
1077 last_clock = is->audio_clock;
1083 /* free the current packet */
1085 av_free_packet(pkt);
1087 if (is->paused || is->audioq.abort_request) {
1091 /* read next packet */
1092 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1094 is->audio_pkt_data = pkt->data;
1095 is->audio_pkt_size = pkt->size;
1097 /* if update the audio clock with the pts */
1098 if (pkt->pts != AV_NOPTS_VALUE) {
1099 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1104 /* get the current audio output buffer size, in samples. With SDL, we
1105 cannot have a precise information */
1106 static int audio_write_get_buf_size(VideoState *is)
1108 return is->audio_hw_buf_size - is->audio_buf_index;
1112 /* prepare a new audio buffer */
1113 void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1115 VideoState *is = opaque;
1116 int audio_size, len1;
1119 audio_callback_time = av_gettime();
1122 if (is->audio_buf_index >= is->audio_buf_size) {
1123 audio_size = audio_decode_frame(is, is->audio_buf, &pts);
1124 if (audio_size < 0) {
1125 /* if error, just output silence */
1126 is->audio_buf_size = 1024;
1127 memset(is->audio_buf, 0, is->audio_buf_size);
1130 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1131 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1133 is->audio_buf_size = audio_size;
1135 is->audio_buf_index = 0;
1137 len1 = is->audio_buf_size - is->audio_buf_index;
1140 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1143 is->audio_buf_index += len1;
1148 /* open a given stream. Return 0 if OK */
1149 static int stream_component_open(VideoState *is, int stream_index)
1151 AVFormatContext *ic = is->ic;
1152 AVCodecContext *enc;
1154 SDL_AudioSpec wanted_spec, spec;
1156 if (stream_index < 0 || stream_index >= ic->nb_streams)
1158 enc = &ic->streams[stream_index]->codec;
1160 /* prepare audio output */
1161 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1162 wanted_spec.freq = enc->sample_rate;
1163 wanted_spec.format = AUDIO_S16SYS;
1164 /* hack for AC3. XXX: suppress that */
1165 if (enc->channels > 2)
1167 wanted_spec.channels = enc->channels;
1168 wanted_spec.silence = 0;
1169 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1170 wanted_spec.callback = sdl_audio_callback;
1171 wanted_spec.userdata = is;
1172 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1173 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1176 is->audio_hw_buf_size = spec.size;
1179 codec = avcodec_find_decoder(enc->codec_id);
1180 enc->debug_mv = debug_mv;
1183 av_log_set_level(AV_LOG_DEBUG);
1184 enc->workaround_bugs = workaround_bugs;
1185 enc->lowres = lowres;
1186 if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
1187 enc->idct_algo= idct;
1188 if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
1190 avcodec_open(enc, codec) < 0)
1192 #if defined(HAVE_THREADS)
1194 avcodec_thread_init(enc, thread_count);
1196 enc->thread_count= thread_count;
1197 switch(enc->codec_type) {
1198 case CODEC_TYPE_AUDIO:
1199 is->audio_stream = stream_index;
1200 is->audio_st = ic->streams[stream_index];
1201 is->audio_buf_size = 0;
1202 is->audio_buf_index = 0;
1204 /* init averaging filter */
1205 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1206 is->audio_diff_avg_count = 0;
1207 /* since we do not have a precise anough audio fifo fullness,
1208 we correct audio sync only if larger than this threshold */
1209 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
1211 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1212 packet_queue_init(&is->audioq);
1215 case CODEC_TYPE_VIDEO:
1216 is->video_stream = stream_index;
1217 is->video_st = ic->streams[stream_index];
1219 is->frame_last_delay = 40e-3;
1220 is->frame_timer = (double)av_gettime() / 1000000.0;
1221 is->video_current_pts_time = av_gettime();
1223 packet_queue_init(&is->videoq);
1224 is->video_tid = SDL_CreateThread(video_thread, is);
1232 static void stream_component_close(VideoState *is, int stream_index)
1234 AVFormatContext *ic = is->ic;
1235 AVCodecContext *enc;
1237 enc = &ic->streams[stream_index]->codec;
1239 switch(enc->codec_type) {
1240 case CODEC_TYPE_AUDIO:
1241 packet_queue_abort(&is->audioq);
1245 packet_queue_end(&is->audioq);
1247 case CODEC_TYPE_VIDEO:
1248 packet_queue_abort(&is->videoq);
1250 /* note: we also signal this mutex to make sure we deblock the
1251 video thread in all cases */
1252 SDL_LockMutex(is->pictq_mutex);
1253 SDL_CondSignal(is->pictq_cond);
1254 SDL_UnlockMutex(is->pictq_mutex);
1256 SDL_WaitThread(is->video_tid, NULL);
1258 packet_queue_end(&is->videoq);
1265 switch(enc->codec_type) {
1266 case CODEC_TYPE_AUDIO:
1267 is->audio_st = NULL;
1268 is->audio_stream = -1;
1270 case CODEC_TYPE_VIDEO:
1271 is->video_st = NULL;
1272 is->video_stream = -1;
1279 void dump_stream_info(AVFormatContext *s)
1282 fprintf(stderr, "Track: %d\n", s->track);
1283 if (s->title[0] != '\0')
1284 fprintf(stderr, "Title: %s\n", s->title);
1285 if (s->author[0] != '\0')
1286 fprintf(stderr, "Author: %s\n", s->author);
1287 if (s->album[0] != '\0')
1288 fprintf(stderr, "Album: %s\n", s->album);
1290 fprintf(stderr, "Year: %d\n", s->year);
1291 if (s->genre[0] != '\0')
1292 fprintf(stderr, "Genre: %s\n", s->genre);
1295 /* since we have only one decoding thread, we can use a global
1296 variable instead of a thread local variable */
1297 static VideoState *global_video_state;
1299 static int decode_interrupt_cb(void)
1301 return (global_video_state && global_video_state->abort_request);
1304 /* this thread gets the stream from the disk or the network */
1305 static int decode_thread(void *arg)
1307 VideoState *is = arg;
1308 AVFormatContext *ic;
1309 int err, i, ret, video_index, audio_index, use_play;
1310 AVPacket pkt1, *pkt = &pkt1;
1311 AVFormatParameters params, *ap = ¶ms;
1315 is->video_stream = -1;
1316 is->audio_stream = -1;
1318 global_video_state = is;
1319 url_set_interrupt_cb(decode_interrupt_cb);
1321 memset(ap, 0, sizeof(*ap));
1322 ap->image_format = image_format;
1323 ap->initial_pause = 1; /* we force a pause when starting an RTSP
1326 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
1328 print_error(is->filename, err);
1333 #ifdef CONFIG_NETWORK
1334 use_play = (ic->iformat == &rtsp_demux);
1339 err = av_find_stream_info(ic);
1341 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1345 ic->pb.eof_reached= 0; //FIXME hack, ffplay maybe shouldnt use url_feof() to test for the end
1348 /* if seeking requested, we execute it */
1349 if (start_time != AV_NOPTS_VALUE) {
1352 timestamp = start_time;
1353 /* add the stream start time */
1354 if (ic->start_time != AV_NOPTS_VALUE)
1355 timestamp += ic->start_time;
1356 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
1358 fprintf(stderr, "%s: could not seek to position %0.3f\n",
1359 is->filename, (double)timestamp / AV_TIME_BASE);
1363 /* now we can begin to play (RTSP stream only) */
1367 err = av_find_stream_info(ic);
1369 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1375 for(i = 0; i < ic->nb_streams; i++) {
1376 AVCodecContext *enc = &ic->streams[i]->codec;
1377 switch(enc->codec_type) {
1378 case CODEC_TYPE_AUDIO:
1379 if (audio_index < 0 && !audio_disable)
1382 case CODEC_TYPE_VIDEO:
1383 if (video_index < 0 && !video_disable)
1391 dump_format(ic, 0, is->filename, 0);
1392 dump_stream_info(ic);
1395 /* open the streams */
1396 if (audio_index >= 0) {
1397 stream_component_open(is, audio_index);
1400 if (video_index >= 0) {
1401 stream_component_open(is, video_index);
1403 if (!display_disable)
1407 if (is->video_stream < 0 && is->audio_stream < 0) {
1408 fprintf(stderr, "%s: could not open codecs\n", is->filename);
1414 if (is->abort_request)
1416 #ifdef CONFIG_NETWORK
1417 if (is->paused != is->last_paused) {
1418 is->last_paused = is->paused;
1424 if (is->paused && ic->iformat == &rtsp_demux) {
1425 /* wait 10 ms to avoid trying to get another packet */
1432 /* XXX: must lock decoder threads */
1433 ret = av_seek_frame(is->ic, -1, is->seek_pos, is->seek_flags);
1435 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
1437 if (is->audio_stream >= 0) {
1438 packet_queue_flush(&is->audioq);
1440 if (is->video_stream >= 0) {
1441 packet_queue_flush(&is->videoq);
1442 SDL_LockMutex(is->video_decoder_mutex);
1443 avcodec_flush_buffers(&ic->streams[video_index]->codec);
1444 SDL_UnlockMutex(is->video_decoder_mutex);
1450 /* if the queue are full, no need to read more */
1451 if (is->audioq.size > MAX_AUDIOQ_SIZE ||
1452 is->videoq.size > MAX_VIDEOQ_SIZE ||
1453 url_feof(&ic->pb)) {
1458 ret = av_read_frame(ic, pkt);
1460 if (url_feof(&ic->pb) && url_ferror(&ic->pb) == 0) {
1461 SDL_Delay(100); /* wait for user event */
1466 if (pkt->stream_index == is->audio_stream) {
1467 packet_queue_put(&is->audioq, pkt);
1468 } else if (pkt->stream_index == is->video_stream) {
1469 packet_queue_put(&is->videoq, pkt);
1471 av_free_packet(pkt);
1474 /* wait until the end */
1475 while (!is->abort_request) {
1481 /* disable interrupting */
1482 global_video_state = NULL;
1484 /* close each stream */
1485 if (is->audio_stream >= 0)
1486 stream_component_close(is, is->audio_stream);
1487 if (is->video_stream >= 0)
1488 stream_component_close(is, is->video_stream);
1490 av_close_input_file(is->ic);
1491 is->ic = NULL; /* safety */
1493 url_set_interrupt_cb(NULL);
1498 event.type = FF_QUIT_EVENT;
1499 event.user.data1 = is;
1500 SDL_PushEvent(&event);
1505 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
1509 is = av_mallocz(sizeof(VideoState));
1512 pstrcpy(is->filename, sizeof(is->filename), filename);
1513 is->iformat = iformat;
1515 is->width = screen->w;
1516 is->height = screen->h;
1521 /* start video display */
1522 is->pictq_mutex = SDL_CreateMutex();
1523 is->pictq_cond = SDL_CreateCond();
1525 is->audio_decoder_mutex = SDL_CreateMutex();
1526 is->video_decoder_mutex = SDL_CreateMutex();
1528 /* add the refresh timer to draw the picture */
1529 schedule_refresh(is, 40);
1531 is->av_sync_type = av_sync_type;
1532 is->parse_tid = SDL_CreateThread(decode_thread, is);
1533 if (!is->parse_tid) {
1540 static void stream_close(VideoState *is)
1544 /* XXX: use a special url_shutdown call to abort parse cleanly */
1545 is->abort_request = 1;
1546 SDL_WaitThread(is->parse_tid, NULL);
1548 /* free all pictures */
1549 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1552 SDL_FreeYUVOverlay(vp->bmp);
1556 SDL_DestroyMutex(is->pictq_mutex);
1557 SDL_DestroyCond(is->pictq_cond);
1558 SDL_DestroyMutex(is->audio_decoder_mutex);
1559 SDL_DestroyMutex(is->video_decoder_mutex);
1562 void stream_cycle_channel(VideoState *is, int codec_type)
1564 AVFormatContext *ic = is->ic;
1565 int start_index, stream_index;
1568 if (codec_type == CODEC_TYPE_VIDEO)
1569 start_index = is->video_stream;
1571 start_index = is->audio_stream;
1572 if (start_index < 0)
1574 stream_index = start_index;
1576 if (++stream_index >= is->ic->nb_streams)
1578 if (stream_index == start_index)
1580 st = ic->streams[stream_index];
1581 if (st->codec.codec_type == codec_type) {
1582 /* check that parameters are OK */
1583 switch(codec_type) {
1584 case CODEC_TYPE_AUDIO:
1585 if (st->codec.sample_rate != 0 &&
1586 st->codec.channels != 0)
1589 case CODEC_TYPE_VIDEO:
1597 stream_component_close(is, start_index);
1598 stream_component_open(is, stream_index);
1602 void toggle_full_screen(void)
1605 is_full_screen = !is_full_screen;
1606 if (!fs_screen_width) {
1607 /* use default SDL method */
1608 SDL_WM_ToggleFullScreen(screen);
1610 /* use the recorded resolution */
1611 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
1612 if (is_full_screen) {
1613 w = fs_screen_width;
1614 h = fs_screen_height;
1615 flags |= SDL_FULLSCREEN;
1619 flags |= SDL_RESIZABLE;
1621 screen = SDL_SetVideoMode(w, h, 0, flags);
1622 cur_stream->width = w;
1623 cur_stream->height = h;
1627 void toggle_pause(void)
1630 stream_pause(cur_stream);
1634 void step_to_next_frame(void)
1637 if (cur_stream->paused)
1638 cur_stream->paused=0;
1639 cur_stream->video_current_pts = get_video_clock(cur_stream);
1647 stream_close(cur_stream);
1656 void toggle_audio_display(void)
1659 cur_stream->show_audio = !cur_stream->show_audio;
1663 /* handle an event sent by the GUI */
1664 void event_loop(void)
1667 double incr, pos, frac;
1670 SDL_WaitEvent(&event);
1671 switch(event.type) {
1673 switch(event.key.keysym.sym) {
1679 toggle_full_screen();
1685 case SDLK_s: //S: Step to next frame
1686 step_to_next_frame();
1690 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
1694 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
1697 toggle_audio_display();
1712 pos = get_master_clock(cur_stream);
1714 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), incr);
1721 case SDL_MOUSEBUTTONDOWN:
1724 int tns, thh, tmm, tss;
1725 tns = cur_stream->ic->duration/1000000LL;
1727 tmm = (tns%3600)/60;
1729 frac = (double)event.button.x/(double)cur_stream->width;
1734 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
1735 hh, mm, ss, thh, tmm, tss);
1736 stream_seek(cur_stream, (int64_t)(cur_stream->ic->start_time+frac*cur_stream->ic->duration), 0);
1739 case SDL_VIDEORESIZE:
1741 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
1742 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
1743 cur_stream->width = event.resize.w;
1744 cur_stream->height = event.resize.h;
1751 case FF_ALLOC_EVENT:
1752 alloc_picture(event.user.data1);
1754 case FF_REFRESH_EVENT:
1755 video_refresh_timer(event.user.data1);
1763 void opt_width(const char *arg)
1765 screen_width = atoi(arg);
1768 void opt_height(const char *arg)
1770 screen_height = atoi(arg);
1773 static void opt_format(const char *arg)
1775 file_iformat = av_find_input_format(arg);
1776 if (!file_iformat) {
1777 fprintf(stderr, "Unknown input format: %s\n", arg);
1782 static void opt_image_format(const char *arg)
1786 for(f = first_image_format; f != NULL; f = f->next) {
1787 if (!strcmp(arg, f->name))
1791 fprintf(stderr, "Unknown image format: '%s'\n", arg);
1797 #ifdef CONFIG_NETWORK
1798 void opt_rtp_tcp(void)
1800 /* only tcp protocol */
1801 rtsp_default_protocols = (1 << RTSP_PROTOCOL_RTP_TCP);
1805 void opt_sync(const char *arg)
1807 if (!strcmp(arg, "audio"))
1808 av_sync_type = AV_SYNC_AUDIO_MASTER;
1809 else if (!strcmp(arg, "video"))
1810 av_sync_type = AV_SYNC_VIDEO_MASTER;
1811 else if (!strcmp(arg, "ext"))
1812 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
1817 void opt_seek(const char *arg)
1819 start_time = parse_date(arg, 1);
1822 static void opt_debug(const char *arg)
1827 static void opt_vismv(const char *arg)
1829 debug_mv = atoi(arg);
1832 static void opt_thread_count(const char *arg)
1834 thread_count= atoi(arg);
1835 #if !defined(HAVE_THREADS)
1836 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
1840 const OptionDef options[] = {
1841 { "h", 0, {(void*)show_help}, "show help" },
1842 { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
1843 { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
1845 /* disabled as SDL/X11 does not support it correctly on application launch */
1846 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
1848 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
1849 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
1850 { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
1851 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
1852 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
1853 { "img", HAS_ARG, {(void*)opt_image_format}, "force image format", "img_fmt" },
1854 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
1855 { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
1856 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
1857 { "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
1858 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
1859 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
1860 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
1861 #ifdef CONFIG_NETWORK
1862 { "rtp_tcp", OPT_EXPERT, {(void*)&opt_rtp_tcp}, "force RTP/TCP protocol usage", "" },
1864 { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
1865 { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
1869 void show_help(void)
1871 printf("ffplay version " FFMPEG_VERSION ", Copyright (c) 2003 Fabrice Bellard\n"
1872 "usage: ffplay [options] input_file\n"
1873 "Simple media player\n");
1875 show_help_options(options, "Main options:\n",
1877 show_help_options(options, "\nAdvanced options:\n",
1878 OPT_EXPERT, OPT_EXPERT);
1879 printf("\nWhile playing:\n"
1881 "f toggle full screen\n"
1883 "a cycle audio channel\n"
1884 "v cycle video channel\n"
1885 "w show audio waves\n"
1886 "left/right seek backward/forward 10 seconds\n"
1887 "down/up seek backward/forward 1 minute\n"
1888 "mouse click seek to percentage in file corresponding to fraction of width\n"
1893 void parse_arg_file(const char *filename)
1895 if (!strcmp(filename, "-"))
1897 input_filename = filename;
1900 /* Called from the main */
1901 int main(int argc, char **argv)
1905 /* register all codecs, demux and protocols */
1909 MorphToPM(); // Morph the VIO application to a PM one to be able to use Win* functions
1911 // Make stdout and stderr unbuffered
1912 setbuf( stdout, NULL );
1913 setbuf( stderr, NULL );
1916 parse_options(argc, argv, options);
1918 if (!input_filename)
1921 if (display_disable) {
1924 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
1925 #ifndef CONFIG_WIN32
1926 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on win32 */
1928 if (SDL_Init (flags)) {
1929 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
1933 if (!display_disable) {
1935 /* save the screen resolution... SDL should allow full screen
1936 by resizing the window */
1939 dpy = XOpenDisplay(NULL);
1941 fs_screen_width = DisplayWidth(dpy, DefaultScreen(dpy));
1942 fs_screen_height = DisplayHeight(dpy, DefaultScreen(dpy));
1947 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
1948 if (is_full_screen && fs_screen_width) {
1949 w = fs_screen_width;
1950 h = fs_screen_height;
1951 flags |= SDL_FULLSCREEN;
1955 flags |= SDL_RESIZABLE;
1957 screen = SDL_SetVideoMode(w, h, 0, flags);
1959 fprintf(stderr, "SDL: could not set video mode - exiting\n");
1962 SDL_WM_SetCaption("FFplay", "FFplay");
1965 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
1966 SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
1967 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
1968 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
1970 cur_stream = stream_open(input_filename, file_iformat);