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() */
31 #if defined(__linux__)
41 #define MAX_VIDEOQ_SIZE (5 * 256 * 1024)
42 #define MAX_AUDIOQ_SIZE (5 * 16 * 1024)
44 /* SDL audio buffer size, in samples. Should be small to have precise
45 A/V sync as SDL does not have hardware buffer fullness info. */
46 #define SDL_AUDIO_BUFFER_SIZE 1024
48 /* no AV sync correction is done if below the AV sync threshold */
49 #define AV_SYNC_THRESHOLD 0.01
50 /* no AV correction is done if too big error */
51 #define AV_NOSYNC_THRESHOLD 10.0
53 /* maximum audio speed change to get correct sync */
54 #define SAMPLE_CORRECTION_PERCENT_MAX 10
56 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
57 #define AUDIO_DIFF_AVG_NB 20
59 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
60 #define SAMPLE_ARRAY_SIZE (2*65536)
62 typedef struct PacketQueue {
63 AVPacketList *first_pkt, *last_pkt;
71 #define VIDEO_PICTURE_QUEUE_SIZE 1
73 typedef struct VideoPicture {
74 double pts; /* presentation time stamp for this picture */
76 int width, height; /* source height & width */
81 AV_SYNC_AUDIO_MASTER, /* default choice */
83 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
86 typedef struct VideoState {
87 SDL_Thread *parse_tid;
88 SDL_Thread *video_tid;
89 AVInputFormat *iformat;
97 int dtg_active_format;
102 double external_clock; /* external clock base */
103 int64_t external_clock_time;
106 double audio_diff_cum; /* used for AV difference average computation */
107 double audio_diff_avg_coef;
108 double audio_diff_threshold;
109 int audio_diff_avg_count;
112 int audio_hw_buf_size;
113 /* samples output by the codec. we reserve more space for avsync
115 uint8_t audio_buf[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
116 int audio_buf_size; /* in bytes */
117 int audio_buf_index; /* in bytes */
119 uint8_t *audio_pkt_data;
122 int show_audio; /* if true, display audio samples */
123 int16_t sample_array[SAMPLE_ARRAY_SIZE];
124 int sample_array_index;
128 double frame_last_pts;
129 double frame_last_delay;
134 double video_last_P_pts; /* pts of the last P picture (needed if B
135 frames are present) */
136 double video_current_pts; /* current displayed pts (different from
137 video_clock if frame fifos are used) */
138 int64_t video_current_pts_time; /* time at which we updated
139 video_current_pts - used to
140 have running video pts */
141 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
142 int pictq_size, pictq_rindex, pictq_windex;
143 SDL_mutex *pictq_mutex;
144 SDL_cond *pictq_cond;
146 // QETimer *video_timer;
148 int width, height, xleft, ytop;
151 void show_help(void);
152 static int audio_write_get_buf_size(VideoState *is);
154 /* options specified by the user */
155 static AVInputFormat *file_iformat;
156 static AVImageFormat *image_format;
157 static const char *input_filename;
158 static int fs_screen_width;
159 static int fs_screen_height;
160 static int screen_width = 640;
161 static int screen_height = 480;
162 static int audio_disable;
163 static int video_disable;
164 static int display_disable;
165 static int show_status;
166 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
167 static int64_t start_time = AV_NOPTS_VALUE;
168 static int debug = 0;
169 static int debug_mv = 0;
171 static int thread_count = 1;
172 static int workaround_bugs = 1;
175 /* current context */
176 static int is_full_screen;
177 static VideoState *cur_stream;
178 static int64_t audio_callback_time;
180 #define FF_ALLOC_EVENT (SDL_USEREVENT)
181 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
182 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
186 /* packet queue handling */
187 static void packet_queue_init(PacketQueue *q)
189 memset(q, 0, sizeof(PacketQueue));
190 q->mutex = SDL_CreateMutex();
191 q->cond = SDL_CreateCond();
194 static void packet_queue_flush(PacketQueue *q)
196 AVPacketList *pkt, *pkt1;
198 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
200 av_free_packet(&pkt->pkt);
209 static void packet_queue_end(PacketQueue *q)
211 packet_queue_flush(q);
212 SDL_DestroyMutex(q->mutex);
213 SDL_DestroyCond(q->cond);
216 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
220 /* duplicate the packet */
221 if (av_dup_packet(pkt) < 0)
224 pkt1 = av_malloc(sizeof(AVPacketList));
231 SDL_LockMutex(q->mutex);
237 q->last_pkt->next = pkt1;
240 q->size += pkt1->pkt.size;
241 /* XXX: should duplicate packet data in DV case */
242 SDL_CondSignal(q->cond);
244 SDL_UnlockMutex(q->mutex);
248 static void packet_queue_abort(PacketQueue *q)
250 SDL_LockMutex(q->mutex);
252 q->abort_request = 1;
254 SDL_CondSignal(q->cond);
256 SDL_UnlockMutex(q->mutex);
259 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
260 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
265 SDL_LockMutex(q->mutex);
268 if (q->abort_request) {
275 q->first_pkt = pkt1->next;
279 q->size -= pkt1->pkt.size;
288 SDL_CondWait(q->cond, q->mutex);
291 SDL_UnlockMutex(q->mutex);
295 static inline void fill_rectangle(SDL_Surface *screen,
296 int x, int y, int w, int h, int color)
303 SDL_FillRect(screen, &rect, color);
307 /* draw only the border of a rectangle */
308 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
312 /* fill the background */
316 w2 = s->width - (x + w);
322 h2 = s->height - (y + h);
325 fill_rectangle(screen,
329 fill_rectangle(screen,
330 s->xleft + s->width - w2, s->ytop,
333 fill_rectangle(screen,
334 s->xleft + w1, s->ytop,
335 s->width - w1 - w2, h1,
337 fill_rectangle(screen,
338 s->xleft + w1, s->ytop + s->height - h2,
339 s->width - w1 - w2, h2,
344 static void video_image_display(VideoState *is)
348 int width, height, x, y;
351 vp = &is->pictq[is->pictq_rindex];
353 /* XXX: use variable in the frame */
354 if (is->video_st->codec.sample_aspect_ratio.num == 0)
357 aspect_ratio = av_q2d(is->video_st->codec.sample_aspect_ratio)
358 * is->video_st->codec.width / is->video_st->codec.height;;
359 if (aspect_ratio <= 0.0)
360 aspect_ratio = (float)is->video_st->codec.width /
361 (float)is->video_st->codec.height;
362 /* if an active format is indicated, then it overrides the
365 if (is->video_st->codec.dtg_active_format != is->dtg_active_format) {
366 is->dtg_active_format = is->video_st->codec.dtg_active_format;
367 printf("dtg_active_format=%d\n", is->dtg_active_format);
371 switch(is->video_st->codec.dtg_active_format) {
372 case FF_DTG_AFD_SAME:
377 aspect_ratio = 4.0 / 3.0;
379 case FF_DTG_AFD_16_9:
380 aspect_ratio = 16.0 / 9.0;
382 case FF_DTG_AFD_14_9:
383 aspect_ratio = 14.0 / 9.0;
385 case FF_DTG_AFD_4_3_SP_14_9:
386 aspect_ratio = 14.0 / 9.0;
388 case FF_DTG_AFD_16_9_SP_14_9:
389 aspect_ratio = 14.0 / 9.0;
391 case FF_DTG_AFD_SP_4_3:
392 aspect_ratio = 4.0 / 3.0;
397 /* XXX: we suppose the screen has a 1.0 pixel ratio */
399 width = ((int)rint(height * aspect_ratio)) & -3;
400 if (width > is->width) {
402 height = ((int)rint(width / aspect_ratio)) & -3;
404 x = (is->width - width) / 2;
405 y = (is->height - height) / 2;
406 if (!is->no_background) {
407 /* fill the background */
408 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
410 is->no_background = 0;
412 rect.x = is->xleft + x;
413 rect.y = is->xleft + y;
416 SDL_DisplayYUVOverlay(vp->bmp, &rect);
419 fill_rectangle(screen,
420 is->xleft, is->ytop, is->width, is->height,
421 QERGB(0x00, 0x00, 0x00));
426 static inline int compute_mod(int a, int b)
435 static void video_audio_display(VideoState *s)
437 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
438 int ch, channels, h, h2, bgcolor, fgcolor;
441 /* compute display index : center on currently output samples */
442 channels = s->audio_st->codec.channels;
443 nb_display_channels = channels;
446 delay = audio_write_get_buf_size(s);
449 /* to be more precise, we take into account the time spent since
450 the last buffer computation */
451 if (audio_callback_time) {
452 time_diff = av_gettime() - audio_callback_time;
453 delay += (time_diff * s->audio_st->codec.sample_rate) / 1000000;
456 delay -= s->width / 2;
457 if (delay < s->width)
459 i_start = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
460 s->last_i_start = i_start;
462 i_start = s->last_i_start;
465 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
466 fill_rectangle(screen,
467 s->xleft, s->ytop, s->width, s->height,
470 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
472 /* total height for one channel */
473 h = s->height / nb_display_channels;
474 /* graph height / 2 */
476 for(ch = 0;ch < nb_display_channels; ch++) {
478 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
479 for(x = 0; x < s->width; x++) {
480 y = (s->sample_array[i] * h2) >> 15;
487 fill_rectangle(screen,
488 s->xleft + x, ys, 1, y,
491 if (i >= SAMPLE_ARRAY_SIZE)
492 i -= SAMPLE_ARRAY_SIZE;
496 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
498 for(ch = 1;ch < nb_display_channels; ch++) {
499 y = s->ytop + ch * h;
500 fill_rectangle(screen,
501 s->xleft, y, s->width, 1,
504 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
507 /* display the current picture, if any */
508 static void video_display(VideoState *is)
510 if (is->audio_st && is->show_audio)
511 video_audio_display(is);
512 else if (is->video_st)
513 video_image_display(is);
516 static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
519 event.type = FF_REFRESH_EVENT;
520 event.user.data1 = opaque;
521 SDL_PushEvent(&event);
522 return 0; /* 0 means stop timer */
525 /* schedule a video refresh in 'delay' ms */
526 static void schedule_refresh(VideoState *is, int delay)
528 SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
531 /* get the current audio clock value */
532 static double get_audio_clock(VideoState *is)
535 int hw_buf_size, bytes_per_sec;
536 pts = is->audio_clock;
537 hw_buf_size = audio_write_get_buf_size(is);
540 bytes_per_sec = is->audio_st->codec.sample_rate *
541 2 * is->audio_st->codec.channels;
544 pts -= (double)hw_buf_size / bytes_per_sec;
548 /* get the current video clock value */
549 static double get_video_clock(VideoState *is)
555 delta = (av_gettime() - is->video_current_pts_time) / 1000000.0;
557 return is->video_current_pts + delta;
560 /* get the current external clock value */
561 static double get_external_clock(VideoState *is)
565 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
568 /* get the current master clock value */
569 static double get_master_clock(VideoState *is)
573 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
575 val = get_video_clock(is);
577 val = get_audio_clock(is);
578 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
580 val = get_audio_clock(is);
582 val = get_video_clock(is);
584 val = get_external_clock(is);
589 /* seek in the stream */
590 static void stream_seek(VideoState *is, int64_t pos)
596 /* pause or resume the video */
597 static void stream_pause(VideoState *is)
599 is->paused = !is->paused;
601 is->video_current_pts = get_video_clock(is);
605 /* called to display each frame */
606 static void video_refresh_timer(void *opaque)
608 VideoState *is = opaque;
610 double actual_delay, delay, sync_threshold, ref_clock, diff;
614 if (is->pictq_size == 0) {
615 /* if no picture, need to wait */
616 schedule_refresh(is, 1);
618 /* dequeue the picture */
619 vp = &is->pictq[is->pictq_rindex];
621 /* update current video pts */
622 is->video_current_pts = vp->pts;
623 is->video_current_pts_time = av_gettime();
625 /* compute nominal delay */
626 delay = vp->pts - is->frame_last_pts;
627 if (delay <= 0 || delay >= 1.0) {
628 /* if incorrect delay, use previous one */
629 delay = is->frame_last_delay;
631 is->frame_last_delay = delay;
632 is->frame_last_pts = vp->pts;
634 /* update delay to follow master synchronisation source */
635 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
636 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
637 /* if video is slave, we try to correct big delays by
638 duplicating or deleting a frame */
639 ref_clock = get_master_clock(is);
640 diff = vp->pts - ref_clock;
642 /* skip or repeat frame. We take into account the
643 delay to compute the threshold. I still don't know
644 if it is the best guess */
645 sync_threshold = AV_SYNC_THRESHOLD;
646 if (delay > sync_threshold)
647 sync_threshold = delay;
648 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
649 if (diff <= -sync_threshold)
651 else if (diff >= sync_threshold)
656 is->frame_timer += delay;
657 /* compute the REAL delay (we need to do that to avoid
659 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
660 if (actual_delay < 0.010) {
661 /* XXX: should skip picture */
662 actual_delay = 0.010;
664 /* launch timer for next picture */
665 schedule_refresh(is, (int)(actual_delay * 1000 + 0.5));
667 #if defined(DEBUG_SYNC)
668 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
669 delay, actual_delay, vp->pts, -diff);
672 /* display picture */
675 /* update queue size and signal for next picture */
676 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
677 is->pictq_rindex = 0;
679 SDL_LockMutex(is->pictq_mutex);
681 SDL_CondSignal(is->pictq_cond);
682 SDL_UnlockMutex(is->pictq_mutex);
684 } else if (is->audio_st) {
685 /* draw the next audio frame */
687 schedule_refresh(is, 40);
689 /* if only audio stream, then display the audio bars (better
690 than nothing, just to test the implementation */
692 /* display picture */
695 schedule_refresh(is, 100);
698 static int64_t last_time;
703 cur_time = av_gettime();
704 if (!last_time || (cur_time - last_time) >= 500 * 1000) {
708 aqsize = is->audioq.size;
710 vqsize = is->videoq.size;
712 if (is->audio_st && is->video_st)
713 av_diff = get_audio_clock(is) - get_video_clock(is);
714 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB \r",
715 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024);
717 last_time = cur_time;
722 /* allocate a picture (needs to do that in main thread to avoid
723 potential locking problems */
724 static void alloc_picture(void *opaque)
726 VideoState *is = opaque;
729 vp = &is->pictq[is->pictq_windex];
732 SDL_FreeYUVOverlay(vp->bmp);
735 /* XXX: use generic function */
736 /* XXX: disable overlay if no hardware acceleration or if RGB format */
737 switch(is->video_st->codec.pix_fmt) {
738 case PIX_FMT_YUV420P:
739 case PIX_FMT_YUV422P:
740 case PIX_FMT_YUV444P:
742 case PIX_FMT_YUV410P:
743 case PIX_FMT_YUV411P:
751 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec.width,
752 is->video_st->codec.height,
755 vp->width = is->video_st->codec.width;
756 vp->height = is->video_st->codec.height;
758 SDL_LockMutex(is->pictq_mutex);
760 SDL_CondSignal(is->pictq_cond);
761 SDL_UnlockMutex(is->pictq_mutex);
764 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts)
770 /* wait until we have space to put a new picture */
771 SDL_LockMutex(is->pictq_mutex);
772 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
773 !is->videoq.abort_request) {
774 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
776 SDL_UnlockMutex(is->pictq_mutex);
778 if (is->videoq.abort_request)
781 vp = &is->pictq[is->pictq_windex];
783 /* alloc or resize hardware picture buffer */
785 vp->width != is->video_st->codec.width ||
786 vp->height != is->video_st->codec.height) {
791 /* the allocation must be done in the main thread to avoid
793 event.type = FF_ALLOC_EVENT;
794 event.user.data1 = is;
795 SDL_PushEvent(&event);
797 /* wait until the picture is allocated */
798 SDL_LockMutex(is->pictq_mutex);
799 while (!vp->allocated && !is->videoq.abort_request) {
800 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
802 SDL_UnlockMutex(is->pictq_mutex);
804 if (is->videoq.abort_request)
808 /* if the frame is not skipped, then display it */
810 /* get a pointer on the bitmap */
811 SDL_LockYUVOverlay (vp->bmp);
813 dst_pix_fmt = PIX_FMT_YUV420P;
814 pict.data[0] = vp->bmp->pixels[0];
815 pict.data[1] = vp->bmp->pixels[2];
816 pict.data[2] = vp->bmp->pixels[1];
818 pict.linesize[0] = vp->bmp->pitches[0];
819 pict.linesize[1] = vp->bmp->pitches[2];
820 pict.linesize[2] = vp->bmp->pitches[1];
821 img_convert(&pict, dst_pix_fmt,
822 (AVPicture *)src_frame, is->video_st->codec.pix_fmt,
823 is->video_st->codec.width, is->video_st->codec.height);
824 /* update the bitmap content */
825 SDL_UnlockYUVOverlay(vp->bmp);
829 /* now we can update the picture count */
830 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
831 is->pictq_windex = 0;
832 SDL_LockMutex(is->pictq_mutex);
834 SDL_UnlockMutex(is->pictq_mutex);
839 /* compute the exact PTS for the picture if it is omitted in the stream */
840 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1)
842 double frame_delay, pts;
846 /* if B frames are present, and if the current picture is a I
847 or P frame, we use the last pts */
848 if (is->video_st->codec.has_b_frames &&
849 src_frame->pict_type != FF_B_TYPE) {
851 pts = is->video_last_P_pts;
852 /* get the pts for the next I or P frame if present */
853 is->video_last_P_pts = pts1;
857 /* update video clock with pts, if present */
858 is->video_clock = pts;
860 pts = is->video_clock;
862 /* update video clock for next frame */
863 frame_delay = (double)is->video_st->codec.frame_rate_base /
864 (double)is->video_st->codec.frame_rate;
865 /* for MPEG2, the frame can be repeated, so we update the
867 if (src_frame->repeat_pict) {
868 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
870 is->video_clock += frame_delay;
872 #if defined(DEBUG_SYNC) && 0
875 if (src_frame->pict_type == FF_B_TYPE)
877 else if (src_frame->pict_type == FF_I_TYPE)
881 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
885 return queue_picture(is, src_frame, pts);
888 static int video_thread(void *arg)
890 VideoState *is = arg;
891 AVPacket pkt1, *pkt = &pkt1;
892 int len1, got_picture;
893 AVFrame *frame= avcodec_alloc_frame();
897 while (is->paused && !is->videoq.abort_request) {
900 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
902 /* NOTE: ipts is the PTS of the _first_ picture beginning in
903 this packet, if any */
905 if (pkt->pts != AV_NOPTS_VALUE)
906 pts = (double)pkt->pts / AV_TIME_BASE;
908 if (is->video_st->codec.codec_id == CODEC_ID_RAWVIDEO) {
909 avpicture_fill((AVPicture *)frame, pkt->data,
910 is->video_st->codec.pix_fmt,
911 is->video_st->codec.width,
912 is->video_st->codec.height);
913 frame->pict_type = FF_I_TYPE;
914 if (output_picture2(is, frame, pts) < 0)
917 len1 = avcodec_decode_video(&is->video_st->codec,
919 pkt->data, pkt->size);
923 if (output_picture2(is, frame, pts) < 0)
930 stream_pause(cur_stream);
937 /* copy samples for viewing in editor window */
938 static void update_sample_display(VideoState *is, short *samples, int samples_size)
940 int size, len, channels;
942 channels = is->audio_st->codec.channels;
944 size = samples_size / sizeof(short);
946 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
949 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
951 is->sample_array_index += len;
952 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
953 is->sample_array_index = 0;
958 /* return the new audio buffer size (samples can be added or deleted
959 to get better sync if video or external master clock) */
960 static int synchronize_audio(VideoState *is, short *samples,
961 int samples_size1, double pts)
966 n = 2 * is->audio_st->codec.channels;
967 samples_size = samples_size1;
969 /* if not master, then we try to remove or add samples to correct the clock */
970 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
971 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
972 double diff, avg_diff;
973 int wanted_size, min_size, max_size, nb_samples;
975 ref_clock = get_master_clock(is);
976 diff = get_audio_clock(is) - ref_clock;
978 if (diff < AV_NOSYNC_THRESHOLD) {
979 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
980 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
981 /* not enough measures to have a correct estimate */
982 is->audio_diff_avg_count++;
984 /* estimate the A-V difference */
985 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
987 if (fabs(avg_diff) >= is->audio_diff_threshold) {
988 wanted_size = samples_size + ((int)(diff * is->audio_st->codec.sample_rate) * n);
989 nb_samples = samples_size / n;
991 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
992 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
993 if (wanted_size < min_size)
994 wanted_size = min_size;
995 else if (wanted_size > max_size)
996 wanted_size = max_size;
998 /* add or remove samples to correction the synchro */
999 if (wanted_size < samples_size) {
1000 /* remove samples */
1001 samples_size = wanted_size;
1002 } else if (wanted_size > samples_size) {
1003 uint8_t *samples_end, *q;
1007 nb = (samples_size - wanted_size);
1008 samples_end = (uint8_t *)samples + samples_size - n;
1009 q = samples_end + n;
1011 memcpy(q, samples_end, n);
1015 samples_size = wanted_size;
1019 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1020 diff, avg_diff, samples_size - samples_size1,
1021 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1025 /* too big difference : may be initial PTS errors, so
1027 is->audio_diff_avg_count = 0;
1028 is->audio_diff_cum = 0;
1032 return samples_size;
1035 /* decode one audio frame and returns its uncompressed size */
1036 static int audio_decode_frame(VideoState *is, uint8_t *audio_buf, double *pts_ptr)
1038 AVPacket *pkt = &is->audio_pkt;
1039 int n, len1, data_size;
1043 /* NOTE: the audio packet can contain several frames */
1044 while (is->audio_pkt_size > 0) {
1045 len1 = avcodec_decode_audio(&is->audio_st->codec,
1046 (int16_t *)audio_buf, &data_size,
1047 is->audio_pkt_data, is->audio_pkt_size);
1049 /* if error, we skip the frame */
1050 is->audio_pkt_size = 0;
1054 is->audio_pkt_data += len1;
1055 is->audio_pkt_size -= len1;
1058 /* if no pts, then compute it */
1059 pts = is->audio_clock;
1061 n = 2 * is->audio_st->codec.channels;
1062 is->audio_clock += (double)data_size /
1063 (double)(n * is->audio_st->codec.sample_rate);
1064 #if defined(DEBUG_SYNC)
1066 static double last_clock;
1067 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1068 is->audio_clock - last_clock,
1069 is->audio_clock, pts);
1070 last_clock = is->audio_clock;
1076 /* free the current packet */
1078 av_free_packet(pkt);
1080 if (is->paused || is->audioq.abort_request) {
1084 /* read next packet */
1085 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1087 is->audio_pkt_data = pkt->data;
1088 is->audio_pkt_size = pkt->size;
1090 /* if update the audio clock with the pts */
1091 if (pkt->pts != AV_NOPTS_VALUE) {
1092 is->audio_clock = (double)pkt->pts / AV_TIME_BASE;
1097 /* get the current audio output buffer size, in samples. With SDL, we
1098 cannot have a precise information */
1099 static int audio_write_get_buf_size(VideoState *is)
1101 return is->audio_hw_buf_size - is->audio_buf_index;
1105 /* prepare a new audio buffer */
1106 void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1108 VideoState *is = opaque;
1109 int audio_size, len1;
1112 audio_callback_time = av_gettime();
1115 if (is->audio_buf_index >= is->audio_buf_size) {
1116 audio_size = audio_decode_frame(is, is->audio_buf, &pts);
1117 if (audio_size < 0) {
1118 /* if error, just output silence */
1119 is->audio_buf_size = 1024;
1120 memset(is->audio_buf, 0, is->audio_buf_size);
1123 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1124 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1126 is->audio_buf_size = audio_size;
1128 is->audio_buf_index = 0;
1130 len1 = is->audio_buf_size - is->audio_buf_index;
1133 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1136 is->audio_buf_index += len1;
1141 /* open a given stream. Return 0 if OK */
1142 static int stream_component_open(VideoState *is, int stream_index)
1144 AVFormatContext *ic = is->ic;
1145 AVCodecContext *enc;
1147 SDL_AudioSpec wanted_spec, spec;
1149 if (stream_index < 0 || stream_index >= ic->nb_streams)
1151 enc = &ic->streams[stream_index]->codec;
1153 /* prepare audio output */
1154 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1155 wanted_spec.freq = enc->sample_rate;
1156 wanted_spec.format = AUDIO_S16SYS;
1157 /* hack for AC3. XXX: suppress that */
1158 if (enc->channels > 2)
1160 wanted_spec.channels = enc->channels;
1161 wanted_spec.silence = 0;
1162 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1163 wanted_spec.callback = sdl_audio_callback;
1164 wanted_spec.userdata = is;
1165 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1166 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1169 is->audio_hw_buf_size = spec.size;
1172 codec = avcodec_find_decoder(enc->codec_id);
1173 enc->debug_mv = debug_mv;
1175 enc->workaround_bugs = workaround_bugs;
1176 if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
1178 avcodec_open(enc, codec) < 0)
1180 #if defined(HAVE_PTHREADS) || defined(HAVE_W32THREADS)
1182 avcodec_thread_init(enc, thread_count);
1184 enc->thread_count= thread_count;
1185 switch(enc->codec_type) {
1186 case CODEC_TYPE_AUDIO:
1187 is->audio_stream = stream_index;
1188 is->audio_st = ic->streams[stream_index];
1189 is->audio_buf_size = 0;
1190 is->audio_buf_index = 0;
1192 /* init averaging filter */
1193 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1194 is->audio_diff_avg_count = 0;
1195 /* since we do not have a precise anough audio fifo fullness,
1196 we correct audio sync only if larger than this threshold */
1197 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
1199 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1200 packet_queue_init(&is->audioq);
1203 case CODEC_TYPE_VIDEO:
1204 is->video_stream = stream_index;
1205 is->video_st = ic->streams[stream_index];
1207 is->frame_last_delay = 40e-3;
1208 is->frame_timer = (double)av_gettime() / 1000000.0;
1209 is->video_current_pts_time = av_gettime();
1211 packet_queue_init(&is->videoq);
1212 is->video_tid = SDL_CreateThread(video_thread, is);
1220 static void stream_component_close(VideoState *is, int stream_index)
1222 AVFormatContext *ic = is->ic;
1223 AVCodecContext *enc;
1225 enc = &ic->streams[stream_index]->codec;
1227 switch(enc->codec_type) {
1228 case CODEC_TYPE_AUDIO:
1229 packet_queue_abort(&is->audioq);
1233 packet_queue_end(&is->audioq);
1235 case CODEC_TYPE_VIDEO:
1236 packet_queue_abort(&is->videoq);
1238 /* note: we also signal this mutex to make sure we deblock the
1239 video thread in all cases */
1240 SDL_LockMutex(is->pictq_mutex);
1241 SDL_CondSignal(is->pictq_cond);
1242 SDL_UnlockMutex(is->pictq_mutex);
1244 SDL_WaitThread(is->video_tid, NULL);
1246 packet_queue_end(&is->videoq);
1253 switch(enc->codec_type) {
1254 case CODEC_TYPE_AUDIO:
1255 is->audio_st = NULL;
1256 is->audio_stream = -1;
1258 case CODEC_TYPE_VIDEO:
1259 is->video_st = NULL;
1260 is->video_stream = -1;
1267 void dump_stream_info(AVFormatContext *s)
1270 fprintf(stderr, "Track: %d\n", s->track);
1271 if (s->title[0] != '\0')
1272 fprintf(stderr, "Title: %s\n", s->title);
1273 if (s->author[0] != '\0')
1274 fprintf(stderr, "Author: %s\n", s->author);
1275 if (s->album[0] != '\0')
1276 fprintf(stderr, "Album: %s\n", s->album);
1278 fprintf(stderr, "Year: %d\n", s->year);
1279 if (s->genre[0] != '\0')
1280 fprintf(stderr, "Genre: %s\n", s->genre);
1283 /* since we have only one decoding thread, we can use a global
1284 variable instead of a thread local variable */
1285 static VideoState *global_video_state;
1287 static int decode_interrupt_cb(void)
1289 return (global_video_state && global_video_state->abort_request);
1292 /* this thread gets the stream from the disk or the network */
1293 static int decode_thread(void *arg)
1295 VideoState *is = arg;
1296 AVFormatContext *ic;
1297 int err, i, ret, video_index, audio_index, use_play;
1298 AVPacket pkt1, *pkt = &pkt1;
1299 AVFormatParameters params, *ap = ¶ms;
1303 is->video_stream = -1;
1304 is->audio_stream = -1;
1306 global_video_state = is;
1307 url_set_interrupt_cb(decode_interrupt_cb);
1309 memset(ap, 0, sizeof(*ap));
1310 ap->image_format = image_format;
1311 ap->initial_pause = 1; /* we force a pause when starting an RTSP
1314 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
1316 print_error(is->filename, err);
1321 #ifdef CONFIG_NETWORK
1322 use_play = (ic->iformat == &rtsp_demux);
1327 err = av_find_stream_info(ic);
1329 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1335 /* if seeking requested, we execute it */
1336 if (start_time != AV_NOPTS_VALUE) {
1339 timestamp = start_time;
1340 /* add the stream start time */
1341 if (ic->start_time != AV_NOPTS_VALUE)
1342 timestamp += ic->start_time;
1343 ret = av_seek_frame(ic, -1, timestamp);
1345 fprintf(stderr, "%s: could not seek to position %0.3f\n",
1346 is->filename, (double)timestamp / AV_TIME_BASE);
1350 /* now we can begin to play (RTSP stream only) */
1354 err = av_find_stream_info(ic);
1356 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1362 for(i = 0; i < ic->nb_streams; i++) {
1363 AVCodecContext *enc = &ic->streams[i]->codec;
1364 switch(enc->codec_type) {
1365 case CODEC_TYPE_AUDIO:
1366 if (audio_index < 0 && !audio_disable)
1369 case CODEC_TYPE_VIDEO:
1370 if (video_index < 0 && !video_disable)
1378 dump_format(ic, 0, is->filename, 0);
1379 dump_stream_info(ic);
1382 /* open the streams */
1383 if (audio_index >= 0) {
1384 stream_component_open(is, audio_index);
1387 if (video_index >= 0) {
1388 stream_component_open(is, video_index);
1390 if (!display_disable)
1394 if (is->video_stream < 0 && is->audio_stream < 0) {
1395 fprintf(stderr, "%s: could not open codecs\n", is->filename);
1401 if (is->abort_request)
1403 #ifdef CONFIG_NETWORK
1404 if (is->paused != is->last_paused) {
1405 is->last_paused = is->paused;
1411 if (is->paused && ic->iformat == &rtsp_demux) {
1412 /* wait 10 ms to avoid trying to get another packet */
1419 /* XXX: must lock decoder threads */
1420 ret = av_seek_frame(is->ic, -1, is->seek_pos);
1422 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
1424 if (is->audio_stream >= 0) {
1425 packet_queue_flush(&is->audioq);
1427 if (is->video_stream >= 0) {
1428 packet_queue_flush(&is->videoq);
1429 avcodec_flush_buffers(&ic->streams[video_index]->codec);
1435 /* if the queue are full, no need to read more */
1436 if (is->audioq.size > MAX_AUDIOQ_SIZE ||
1437 is->videoq.size > MAX_VIDEOQ_SIZE ||
1438 url_feof(&ic->pb)) {
1443 ret = av_read_frame(ic, pkt);
1447 if (pkt->stream_index == is->audio_stream) {
1448 packet_queue_put(&is->audioq, pkt);
1449 } else if (pkt->stream_index == is->video_stream) {
1450 packet_queue_put(&is->videoq, pkt);
1452 av_free_packet(pkt);
1455 /* wait until the end */
1456 while (!is->abort_request) {
1462 /* disable interrupting */
1463 global_video_state = NULL;
1465 /* close each stream */
1466 if (is->audio_stream >= 0)
1467 stream_component_close(is, is->audio_stream);
1468 if (is->video_stream >= 0)
1469 stream_component_close(is, is->video_stream);
1471 av_close_input_file(is->ic);
1472 is->ic = NULL; /* safety */
1474 url_set_interrupt_cb(NULL);
1479 event.type = FF_QUIT_EVENT;
1480 event.user.data1 = is;
1481 SDL_PushEvent(&event);
1486 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
1490 is = av_mallocz(sizeof(VideoState));
1493 pstrcpy(is->filename, sizeof(is->filename), filename);
1494 is->iformat = iformat;
1496 is->width = screen->w;
1497 is->height = screen->h;
1502 /* start video display */
1503 is->pictq_mutex = SDL_CreateMutex();
1504 is->pictq_cond = SDL_CreateCond();
1506 /* add the refresh timer to draw the picture */
1507 schedule_refresh(is, 40);
1509 is->av_sync_type = av_sync_type;
1510 is->parse_tid = SDL_CreateThread(decode_thread, is);
1511 if (!is->parse_tid) {
1518 static void stream_close(VideoState *is)
1522 /* XXX: use a special url_shutdown call to abort parse cleanly */
1523 is->abort_request = 1;
1524 SDL_WaitThread(is->parse_tid, NULL);
1526 /* free all pictures */
1527 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1530 SDL_FreeYUVOverlay(vp->bmp);
1534 SDL_DestroyMutex(is->pictq_mutex);
1535 SDL_DestroyCond(is->pictq_cond);
1538 void stream_cycle_channel(VideoState *is, int codec_type)
1540 AVFormatContext *ic = is->ic;
1541 int start_index, stream_index;
1544 if (codec_type == CODEC_TYPE_VIDEO)
1545 start_index = is->video_stream;
1547 start_index = is->audio_stream;
1548 if (start_index < 0)
1550 stream_index = start_index;
1552 if (++stream_index >= is->ic->nb_streams)
1554 if (stream_index == start_index)
1556 st = ic->streams[stream_index];
1557 if (st->codec.codec_type == codec_type) {
1558 /* check that parameters are OK */
1559 switch(codec_type) {
1560 case CODEC_TYPE_AUDIO:
1561 if (st->codec.sample_rate != 0 &&
1562 st->codec.channels != 0)
1565 case CODEC_TYPE_VIDEO:
1573 stream_component_close(is, start_index);
1574 stream_component_open(is, stream_index);
1578 void toggle_full_screen(void)
1581 is_full_screen = !is_full_screen;
1582 if (!fs_screen_width) {
1583 /* use default SDL method */
1584 SDL_WM_ToggleFullScreen(screen);
1586 /* use the recorded resolution */
1587 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
1588 if (is_full_screen) {
1589 w = fs_screen_width;
1590 h = fs_screen_height;
1591 flags |= SDL_FULLSCREEN;
1595 flags |= SDL_RESIZABLE;
1597 screen = SDL_SetVideoMode(w, h, 0, flags);
1598 cur_stream->width = w;
1599 cur_stream->height = h;
1603 void toggle_pause(void)
1606 stream_pause(cur_stream);
1610 void step_to_next_frame(void)
1613 if (cur_stream->paused)
1614 cur_stream->paused=0;
1615 cur_stream->video_current_pts = get_video_clock(cur_stream);
1623 stream_close(cur_stream);
1632 void toggle_audio_display(void)
1635 cur_stream->show_audio = !cur_stream->show_audio;
1639 /* handle an event sent by the GUI */
1640 void event_loop(void)
1643 double incr, pos, frac;
1646 SDL_WaitEvent(&event);
1647 switch(event.type) {
1649 switch(event.key.keysym.sym) {
1655 toggle_full_screen();
1661 case SDLK_s: //S: Step to next frame
1662 step_to_next_frame();
1666 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
1670 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
1673 toggle_audio_display();
1688 pos = get_master_clock(cur_stream);
1690 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE));
1697 case SDL_MOUSEBUTTONDOWN:
1700 int tns, thh, tmm, tss;
1701 tns = cur_stream->ic->duration/1000000LL;
1703 tmm = (tns%3600)/60;
1705 frac = (double)event.button.x/(double)cur_stream->width;
1710 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
1711 hh, mm, ss, thh, tmm, tss);
1712 stream_seek(cur_stream, (int64_t)(cur_stream->ic->start_time+frac*cur_stream->ic->duration));
1715 case SDL_VIDEORESIZE:
1717 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
1718 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
1719 cur_stream->width = event.resize.w;
1720 cur_stream->height = event.resize.h;
1727 case FF_ALLOC_EVENT:
1728 alloc_picture(event.user.data1);
1730 case FF_REFRESH_EVENT:
1731 video_refresh_timer(event.user.data1);
1739 void opt_width(const char *arg)
1741 screen_width = atoi(arg);
1744 void opt_height(const char *arg)
1746 screen_height = atoi(arg);
1749 static void opt_format(const char *arg)
1751 file_iformat = av_find_input_format(arg);
1752 if (!file_iformat) {
1753 fprintf(stderr, "Unknown input format: %s\n", arg);
1758 static void opt_image_format(const char *arg)
1762 for(f = first_image_format; f != NULL; f = f->next) {
1763 if (!strcmp(arg, f->name))
1767 fprintf(stderr, "Unknown image format: '%s'\n", arg);
1773 #ifdef CONFIG_NETWORK
1774 void opt_rtp_tcp(void)
1776 /* only tcp protocol */
1777 rtsp_default_protocols = (1 << RTSP_PROTOCOL_RTP_TCP);
1781 void opt_sync(const char *arg)
1783 if (!strcmp(arg, "audio"))
1784 av_sync_type = AV_SYNC_AUDIO_MASTER;
1785 else if (!strcmp(arg, "video"))
1786 av_sync_type = AV_SYNC_VIDEO_MASTER;
1787 else if (!strcmp(arg, "ext"))
1788 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
1793 void opt_seek(const char *arg)
1795 start_time = parse_date(arg, 1);
1798 static void opt_debug(const char *arg)
1803 static void opt_vismv(const char *arg)
1805 debug_mv = atoi(arg);
1808 static void opt_thread_count(const char *arg)
1810 thread_count= atoi(arg);
1811 #if !defined(HAVE_PTHREADS) && !defined(HAVE_W32THREADS)
1812 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
1816 const OptionDef options[] = {
1817 { "h", 0, {(void*)show_help}, "show help" },
1818 { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
1819 { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
1821 /* disabled as SDL/X11 does not support it correctly on application launch */
1822 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
1824 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
1825 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
1826 { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
1827 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
1828 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
1829 { "img", HAS_ARG, {(void*)opt_image_format}, "force image format", "img_fmt" },
1830 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
1831 { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
1832 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
1833 { "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
1834 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
1835 #ifdef CONFIG_NETWORK
1836 { "rtp_tcp", OPT_EXPERT, {(void*)&opt_rtp_tcp}, "force RTP/TCP protocol usage", "" },
1838 { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
1839 { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
1843 void show_help(void)
1845 printf("ffplay version " FFMPEG_VERSION ", Copyright (c) 2003 Fabrice Bellard\n"
1846 "usage: ffplay [options] input_file\n"
1847 "Simple media player\n");
1849 show_help_options(options, "Main options:\n",
1851 show_help_options(options, "\nAdvanced options:\n",
1852 OPT_EXPERT, OPT_EXPERT);
1853 printf("\nWhile playing:\n"
1855 "f toggle full screen\n"
1857 "a cycle audio channel\n"
1858 "v cycle video channel\n"
1859 "w show audio waves\n"
1860 "left/right seek backward/forward 10 seconds\n"
1861 "down/up seek backward/forward 1 minute\n"
1862 "mouse click seek to percentage in file corresponding to fraction of width\n"
1867 void parse_arg_file(const char *filename)
1869 if (!strcmp(filename, "-"))
1871 input_filename = filename;
1874 /* Called from the main */
1875 int main(int argc, char **argv)
1879 /* register all codecs, demux and protocols */
1882 parse_options(argc, argv, options);
1884 if (!input_filename)
1887 if (display_disable) {
1890 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
1891 #ifndef CONFIG_WIN32
1892 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on win32 */
1894 if (SDL_Init (flags)) {
1895 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
1899 if (!display_disable) {
1901 /* save the screen resolution... SDL should allow full screen
1902 by resizing the window */
1905 dpy = XOpenDisplay(NULL);
1907 fs_screen_width = DisplayWidth(dpy, DefaultScreen(dpy));
1908 fs_screen_height = DisplayHeight(dpy, DefaultScreen(dpy));
1913 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
1914 if (is_full_screen && fs_screen_width) {
1915 w = fs_screen_width;
1916 h = fs_screen_height;
1917 flags |= SDL_FULLSCREEN;
1921 flags |= SDL_RESIZABLE;
1923 screen = SDL_SetVideoMode(w, h, 0, flags);
1925 fprintf(stderr, "SDL: could not set video mode - exiting\n");
1928 SDL_WM_SetCaption("FFplay", "FFplay");
1931 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
1932 SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
1933 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
1934 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
1936 cur_stream = stream_open(input_filename, file_iformat);