2 * avplay : Simple Media Player based on the Libav libraries
3 * Copyright (c) 2003 Fabrice Bellard
5 * This file is part of Libav.
7 * Libav 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.
12 * Libav 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.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
28 #include "libavutil/avstring.h"
29 #include "libavutil/colorspace.h"
30 #include "libavutil/display.h"
31 #include "libavutil/mathematics.h"
32 #include "libavutil/pixdesc.h"
33 #include "libavutil/imgutils.h"
34 #include "libavutil/dict.h"
35 #include "libavutil/parseutils.h"
36 #include "libavutil/samplefmt.h"
37 #include "libavutil/time.h"
38 #include "libavformat/avformat.h"
39 #include "libavdevice/avdevice.h"
40 #include "libswscale/swscale.h"
41 #include "libavresample/avresample.h"
42 #include "libavutil/opt.h"
43 #include "libavcodec/avfft.h"
46 # include "libavfilter/avfilter.h"
47 # include "libavfilter/buffersink.h"
48 # include "libavfilter/buffersrc.h"
54 #include <SDL_thread.h>
57 #undef main /* We don't want SDL to override our main() */
62 const char program_name[] = "avplay";
63 const int program_birth_year = 2003;
65 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
66 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
69 /* SDL audio buffer size, in samples. Should be small to have precise
70 A/V sync as SDL does not have hardware buffer fullness info. */
71 #define SDL_AUDIO_BUFFER_SIZE 1024
73 /* no AV sync correction is done if below the AV sync threshold */
74 #define AV_SYNC_THRESHOLD 0.01
75 /* no AV correction is done if too big error */
76 #define AV_NOSYNC_THRESHOLD 10.0
78 #define FRAME_SKIP_FACTOR 0.05
80 /* maximum audio speed change to get correct sync */
81 #define SAMPLE_CORRECTION_PERCENT_MAX 10
83 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
84 #define AUDIO_DIFF_AVG_NB 20
86 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
87 #define SAMPLE_ARRAY_SIZE (2 * 65536)
89 static int64_t sws_flags = SWS_BICUBIC;
91 typedef struct PacketQueue {
92 AVPacketList *first_pkt, *last_pkt;
100 #define VIDEO_PICTURE_QUEUE_SIZE 2
101 #define SUBPICTURE_QUEUE_SIZE 4
103 typedef struct VideoPicture {
104 double pts; // presentation timestamp for this picture
105 double target_clock; // av_gettime_relative() time at which this should be displayed ideally
106 int64_t pos; // byte position in file
108 int width, height; /* source height & width */
111 enum AVPixelFormat pix_fmt;
116 typedef struct SubPicture {
117 double pts; /* presentation time stamp for this picture */
122 AV_SYNC_AUDIO_MASTER, /* default choice */
123 AV_SYNC_VIDEO_MASTER,
124 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
127 typedef struct VideoState {
128 SDL_Thread *parse_tid;
129 SDL_Thread *video_tid;
130 SDL_Thread *refresh_tid;
131 AVInputFormat *iformat;
140 int read_pause_return;
146 double external_clock; /* external clock base */
147 int64_t external_clock_time;
150 double audio_diff_cum; /* used for AV difference average computation */
151 double audio_diff_avg_coef;
152 double audio_diff_threshold;
153 int audio_diff_avg_count;
156 int audio_hw_buf_size;
157 uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
160 unsigned int audio_buf_size; /* in bytes */
161 int audio_buf_index; /* in bytes */
162 AVPacket audio_pkt_temp;
164 enum AVSampleFormat sdl_sample_fmt;
165 uint64_t sdl_channel_layout;
168 enum AVSampleFormat resample_sample_fmt;
169 uint64_t resample_channel_layout;
170 int resample_sample_rate;
171 AVAudioResampleContext *avr;
174 int show_audio; /* if true, display audio samples */
175 int16_t sample_array[SAMPLE_ARRAY_SIZE];
176 int sample_array_index;
180 FFTSample *rdft_data;
183 SDL_Thread *subtitle_tid;
185 int subtitle_stream_changed;
186 AVStream *subtitle_st;
187 PacketQueue subtitleq;
188 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
189 int subpq_size, subpq_rindex, subpq_windex;
190 SDL_mutex *subpq_mutex;
191 SDL_cond *subpq_cond;
194 double frame_last_pts;
195 double frame_last_delay;
196 double video_clock; // pts of last decoded frame / predicted pts of next decoded frame
200 double video_current_pts; // current displayed pts (different from video_clock if frame fifos are used)
201 double video_current_pts_drift; // video_current_pts - time (av_gettime_relative) at which we updated video_current_pts - used to have running video pts
202 int64_t video_current_pos; // current displayed file pos
203 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
204 int pictq_size, pictq_rindex, pictq_windex;
205 SDL_mutex *pictq_mutex;
206 SDL_cond *pictq_cond;
208 struct SwsContext *img_convert_ctx;
211 // QETimer *video_timer;
213 int width, height, xleft, ytop;
215 PtsCorrectionContext pts_ctx;
218 AVFilterContext *in_video_filter; // the first filter in the video chain
219 AVFilterContext *out_video_filter; // the last filter in the video chain
223 float skip_frames_index;
227 /* options specified by the user */
228 static AVInputFormat *file_iformat;
229 static const char *input_filename;
230 static const char *window_title;
231 static int fs_screen_width;
232 static int fs_screen_height;
233 static int screen_width = 0;
234 static int screen_height = 0;
235 static int audio_disable;
236 static int video_disable;
237 static int wanted_stream[AVMEDIA_TYPE_NB] = {
238 [AVMEDIA_TYPE_AUDIO] = -1,
239 [AVMEDIA_TYPE_VIDEO] = -1,
240 [AVMEDIA_TYPE_SUBTITLE] = -1,
242 static int seek_by_bytes = -1;
243 static int display_disable;
244 static int show_status = 1;
245 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
246 static int64_t start_time = AV_NOPTS_VALUE;
247 static int64_t duration = AV_NOPTS_VALUE;
249 static int workaround_bugs = 1;
251 static int genpts = 0;
252 static int idct = FF_IDCT_AUTO;
253 static enum AVDiscard skip_frame = AVDISCARD_DEFAULT;
254 static enum AVDiscard skip_idct = AVDISCARD_DEFAULT;
255 static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT;
256 static int error_concealment = 3;
257 static int decoder_reorder_pts = -1;
258 static int noautoexit;
259 static int exit_on_keydown;
260 static int exit_on_mousedown;
262 static int framedrop = 1;
263 static int infinite_buffer = 0;
265 static int rdftspeed = 20;
267 static char *vfilters = NULL;
269 static int autorotate = 1;
271 /* current context */
272 static int is_full_screen;
273 static VideoState *cur_stream;
274 static int64_t audio_callback_time;
276 static AVPacket flush_pkt;
278 #define FF_ALLOC_EVENT (SDL_USEREVENT)
279 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
280 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
282 static SDL_Surface *screen;
284 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
286 /* packet queue handling */
287 static void packet_queue_init(PacketQueue *q)
289 memset(q, 0, sizeof(PacketQueue));
290 q->mutex = SDL_CreateMutex();
291 q->cond = SDL_CreateCond();
292 packet_queue_put(q, &flush_pkt);
295 static void packet_queue_flush(PacketQueue *q)
297 AVPacketList *pkt, *pkt1;
299 SDL_LockMutex(q->mutex);
300 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
302 av_packet_unref(&pkt->pkt);
309 SDL_UnlockMutex(q->mutex);
312 static void packet_queue_end(PacketQueue *q)
314 packet_queue_flush(q);
315 SDL_DestroyMutex(q->mutex);
316 SDL_DestroyCond(q->cond);
319 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
323 pkt1 = av_malloc(sizeof(AVPacketList));
330 SDL_LockMutex(q->mutex);
336 q->last_pkt->next = pkt1;
339 q->size += pkt1->pkt.size + sizeof(*pkt1);
340 /* XXX: should duplicate packet data in DV case */
341 SDL_CondSignal(q->cond);
343 SDL_UnlockMutex(q->mutex);
347 static void packet_queue_abort(PacketQueue *q)
349 SDL_LockMutex(q->mutex);
351 q->abort_request = 1;
353 SDL_CondSignal(q->cond);
355 SDL_UnlockMutex(q->mutex);
358 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
359 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
364 SDL_LockMutex(q->mutex);
367 if (q->abort_request) {
374 q->first_pkt = pkt1->next;
378 q->size -= pkt1->pkt.size + sizeof(*pkt1);
387 SDL_CondWait(q->cond, q->mutex);
390 SDL_UnlockMutex(q->mutex);
394 static inline void fill_rectangle(SDL_Surface *screen,
395 int x, int y, int w, int h, int color)
402 SDL_FillRect(screen, &rect, color);
405 #define ALPHA_BLEND(a, oldp, newp, s)\
406 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
408 #define RGBA_IN(r, g, b, a, s)\
410 unsigned int v = ((const uint32_t *)(s))[0];\
411 a = (v >> 24) & 0xff;\
412 r = (v >> 16) & 0xff;\
413 g = (v >> 8) & 0xff;\
417 #define YUVA_IN(y, u, v, a, s, pal)\
419 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
420 a = (val >> 24) & 0xff;\
421 y = (val >> 16) & 0xff;\
422 u = (val >> 8) & 0xff;\
426 #define YUVA_OUT(d, y, u, v, a)\
428 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
434 static void blend_subrect(uint8_t *dst[4], uint16_t dst_linesize[4],
435 const AVSubtitleRect *rect, int imgw, int imgh)
437 int wrap, wrap3, width2, skip2;
438 int y, u, v, a, u1, v1, a1, w, h;
439 uint8_t *lum, *cb, *cr;
442 int dstx, dsty, dstw, dsth;
444 dstw = av_clip(rect->w, 0, imgw);
445 dsth = av_clip(rect->h, 0, imgh);
446 dstx = av_clip(rect->x, 0, imgw - dstw);
447 dsty = av_clip(rect->y, 0, imgh - dsth);
448 /* sdl has U and V inverted */
449 lum = dst[0] + dsty * dst_linesize[0];
450 cb = dst[2] + (dsty >> 1) * dst_linesize[2];
451 cr = dst[1] + (dsty >> 1) * dst_linesize[1];
453 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
455 wrap = dst_linesize[0];
456 wrap3 = rect->linesize[0];
458 pal = (const uint32_t *)rect->data[1]; /* Now in YCrCb! */
466 YUVA_IN(y, u, v, a, p, pal);
467 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
468 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
469 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
475 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
476 YUVA_IN(y, u, v, a, p, pal);
480 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
482 YUVA_IN(y, u, v, a, p + BPP, pal);
486 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
487 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
488 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
495 YUVA_IN(y, u, v, a, p, pal);
496 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
497 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
498 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
502 p += wrap3 - dstw * BPP;
503 lum += wrap - dstw - dstx;
504 cb += dst_linesize[2] - width2 - skip2;
505 cr += dst_linesize[1] - width2 - skip2;
507 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
513 YUVA_IN(y, u, v, a, p, pal);
517 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
520 YUVA_IN(y, u, v, a, p, pal);
524 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
525 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
526 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
532 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
533 YUVA_IN(y, u, v, a, p, pal);
537 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
539 YUVA_IN(y, u, v, a, p + BPP, pal);
543 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
547 YUVA_IN(y, u, v, a, p, pal);
551 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
553 YUVA_IN(y, u, v, a, p + BPP, pal);
557 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
559 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
560 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
564 p += -wrap3 + 2 * BPP;
568 YUVA_IN(y, u, v, a, p, pal);
572 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
575 YUVA_IN(y, u, v, a, p, pal);
579 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
580 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
581 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
587 p += wrap3 + (wrap3 - dstw * BPP);
588 lum += wrap + (wrap - dstw - dstx);
589 cb += dst_linesize[2] - width2 - skip2;
590 cr += dst_linesize[1] - width2 - skip2;
592 /* handle odd height */
599 YUVA_IN(y, u, v, a, p, pal);
600 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
601 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
602 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
608 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
609 YUVA_IN(y, u, v, a, p, pal);
613 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
615 YUVA_IN(y, u, v, a, p + BPP, pal);
619 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
620 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
621 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
628 YUVA_IN(y, u, v, a, p, pal);
629 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
630 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
631 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
636 static void free_subpicture(SubPicture *sp)
638 avsubtitle_free(&sp->sub);
641 static void video_image_display(VideoState *is)
646 int width, height, x, y;
650 vp = &is->pictq[is->pictq_rindex];
656 aspect_ratio = av_q2d(vp->sar);
659 /* XXX: use variable in the frame */
660 if (is->video_st->sample_aspect_ratio.num)
661 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
662 else if (is->video_st->codec->sample_aspect_ratio.num)
663 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
667 if (aspect_ratio <= 0.0)
669 aspect_ratio *= (float)vp->width / (float)vp->height;
673 if (is->subpq_size > 0)
675 sp = &is->subpq[is->subpq_rindex];
677 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
679 SDL_LockYUVOverlay (vp->bmp);
681 for (i = 0; i < sp->sub.num_rects; i++)
682 blend_subrect(vp->bmp->pixels, vp->bmp->pitches,
683 sp->sub.rects[i], vp->bmp->w, vp->bmp->h);
685 SDL_UnlockYUVOverlay (vp->bmp);
691 /* XXX: we suppose the screen has a 1.0 pixel ratio */
693 width = ((int)rint(height * aspect_ratio)) & ~1;
694 if (width > is->width) {
696 height = ((int)rint(width / aspect_ratio)) & ~1;
698 x = (is->width - width) / 2;
699 y = (is->height - height) / 2;
700 is->no_background = 0;
701 rect.x = is->xleft + x;
702 rect.y = is->ytop + y;
705 SDL_DisplayYUVOverlay(vp->bmp, &rect);
709 /* get the current audio output buffer size, in samples. With SDL, we
710 cannot have a precise information */
711 static int audio_write_get_buf_size(VideoState *is)
713 return is->audio_buf_size - is->audio_buf_index;
716 static inline int compute_mod(int a, int b)
725 static void video_audio_display(VideoState *s)
727 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
728 int ch, channels, h, h2, bgcolor, fgcolor;
730 int rdft_bits, nb_freq;
732 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
734 nb_freq = 1 << (rdft_bits - 1);
736 /* compute display index : center on currently output samples */
737 channels = s->sdl_channels;
738 nb_display_channels = channels;
740 int data_used = s->show_audio == 1 ? s->width : (2 * nb_freq);
742 delay = audio_write_get_buf_size(s);
745 /* to be more precise, we take into account the time spent since
746 the last buffer computation */
747 if (audio_callback_time) {
748 time_diff = av_gettime_relative() - audio_callback_time;
749 delay -= (time_diff * s->sdl_sample_rate) / 1000000;
752 delay += 2 * data_used;
753 if (delay < data_used)
756 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
757 if (s->show_audio == 1) {
759 for (i = 0; i < 1000; i += channels) {
760 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
761 int a = s->sample_array[idx];
762 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
763 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
764 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
766 if (h < score && (b ^ c) < 0) {
773 s->last_i_start = i_start;
775 i_start = s->last_i_start;
778 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
779 if (s->show_audio == 1) {
780 fill_rectangle(screen,
781 s->xleft, s->ytop, s->width, s->height,
784 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
786 /* total height for one channel */
787 h = s->height / nb_display_channels;
788 /* graph height / 2 */
790 for (ch = 0; ch < nb_display_channels; ch++) {
792 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
793 for (x = 0; x < s->width; x++) {
794 y = (s->sample_array[i] * h2) >> 15;
801 fill_rectangle(screen,
802 s->xleft + x, ys, 1, y,
805 if (i >= SAMPLE_ARRAY_SIZE)
806 i -= SAMPLE_ARRAY_SIZE;
810 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
812 for (ch = 1; ch < nb_display_channels; ch++) {
813 y = s->ytop + ch * h;
814 fill_rectangle(screen,
815 s->xleft, y, s->width, 1,
818 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
820 nb_display_channels= FFMIN(nb_display_channels, 2);
821 if (rdft_bits != s->rdft_bits) {
822 av_rdft_end(s->rdft);
823 av_free(s->rdft_data);
824 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
825 s->rdft_bits = rdft_bits;
826 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
830 for (ch = 0; ch < nb_display_channels; ch++) {
831 data[ch] = s->rdft_data + 2 * nb_freq * ch;
833 for (x = 0; x < 2 * nb_freq; x++) {
834 double w = (x-nb_freq) * (1.0 / nb_freq);
835 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
837 if (i >= SAMPLE_ARRAY_SIZE)
838 i -= SAMPLE_ARRAY_SIZE;
840 av_rdft_calc(s->rdft, data[ch]);
842 /* Least efficient way to do this, we should of course
843 * directly access it but it is more than fast enough. */
844 for (y = 0; y < s->height; y++) {
845 double w = 1 / sqrt(nb_freq);
846 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]));
847 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
848 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
851 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
853 fill_rectangle(screen,
854 s->xpos, s->height-y, 1, 1,
858 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
860 if (s->xpos >= s->width)
865 static int video_open(VideoState *is)
867 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
870 if (is_full_screen) flags |= SDL_FULLSCREEN;
871 else flags |= SDL_RESIZABLE;
873 if (is_full_screen && fs_screen_width) {
875 h = fs_screen_height;
876 } else if (!is_full_screen && screen_width) {
880 } else if (is->out_video_filter && is->out_video_filter->inputs[0]) {
881 w = is->out_video_filter->inputs[0]->w;
882 h = is->out_video_filter->inputs[0]->h;
884 } else if (is->video_st && is->video_st->codec->width) {
885 w = is->video_st->codec->width;
886 h = is->video_st->codec->height;
892 if (screen && is->width == screen->w && screen->w == w
893 && is->height== screen->h && screen->h == h)
896 #if defined(__APPLE__) && !SDL_VERSION_ATLEAST(1, 2, 14)
897 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X and older SDL */
898 screen = SDL_SetVideoMode(w, h, 24, flags);
900 screen = SDL_SetVideoMode(w, h, 0, flags);
903 fprintf(stderr, "SDL: could not set video mode - exiting\n");
907 window_title = input_filename;
908 SDL_WM_SetCaption(window_title, window_title);
910 is->width = screen->w;
911 is->height = screen->h;
916 /* display the current picture, if any */
917 static void video_display(VideoState *is)
920 video_open(cur_stream);
921 if (is->audio_st && is->show_audio)
922 video_audio_display(is);
923 else if (is->video_st)
924 video_image_display(is);
927 static int refresh_thread(void *opaque)
929 VideoState *is= opaque;
930 while (!is->abort_request) {
932 event.type = FF_REFRESH_EVENT;
933 event.user.data1 = opaque;
936 SDL_PushEvent(&event);
938 av_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
943 /* get the current audio clock value */
944 static double get_audio_clock(VideoState *is)
947 int hw_buf_size, bytes_per_sec;
948 pts = is->audio_clock;
949 hw_buf_size = audio_write_get_buf_size(is);
952 bytes_per_sec = is->sdl_sample_rate * is->sdl_channels *
953 av_get_bytes_per_sample(is->sdl_sample_fmt);
956 pts -= (double)hw_buf_size / bytes_per_sec;
960 /* get the current video clock value */
961 static double get_video_clock(VideoState *is)
964 return is->video_current_pts;
966 return is->video_current_pts_drift + av_gettime_relative() / 1000000.0;
970 /* get the current external clock value */
971 static double get_external_clock(VideoState *is)
974 ti = av_gettime_relative();
975 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
978 /* get the current master clock value */
979 static double get_master_clock(VideoState *is)
983 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
985 val = get_video_clock(is);
987 val = get_audio_clock(is);
988 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
990 val = get_audio_clock(is);
992 val = get_video_clock(is);
994 val = get_external_clock(is);
999 /* seek in the stream */
1000 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1002 if (!is->seek_req) {
1005 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1007 is->seek_flags |= AVSEEK_FLAG_BYTE;
1012 /* pause or resume the video */
1013 static void stream_pause(VideoState *is)
1016 is->frame_timer += av_gettime_relative() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1017 if (is->read_pause_return != AVERROR(ENOSYS)) {
1018 is->video_current_pts = is->video_current_pts_drift + av_gettime_relative() / 1000000.0;
1020 is->video_current_pts_drift = is->video_current_pts - av_gettime_relative() / 1000000.0;
1022 is->paused = !is->paused;
1025 static double compute_target_time(double frame_current_pts, VideoState *is)
1027 double delay, sync_threshold, diff = 0;
1029 /* compute nominal delay */
1030 delay = frame_current_pts - is->frame_last_pts;
1031 if (delay <= 0 || delay >= 10.0) {
1032 /* if incorrect delay, use previous one */
1033 delay = is->frame_last_delay;
1035 is->frame_last_delay = delay;
1037 is->frame_last_pts = frame_current_pts;
1039 /* update delay to follow master synchronisation source */
1040 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1041 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1042 /* if video is slave, we try to correct big delays by
1043 duplicating or deleting a frame */
1044 diff = get_video_clock(is) - get_master_clock(is);
1046 /* skip or repeat frame. We take into account the
1047 delay to compute the threshold. I still don't know
1048 if it is the best guess */
1049 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1050 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1051 if (diff <= -sync_threshold)
1053 else if (diff >= sync_threshold)
1057 is->frame_timer += delay;
1059 av_log(NULL, AV_LOG_TRACE, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
1060 delay, frame_current_pts, -diff);
1062 return is->frame_timer;
1065 /* called to display each frame */
1066 static void video_refresh_timer(void *opaque)
1068 VideoState *is = opaque;
1071 SubPicture *sp, *sp2;
1075 if (is->pictq_size == 0) {
1076 // nothing to do, no picture to display in the que
1078 double time = av_gettime_relative() / 1000000.0;
1080 /* dequeue the picture */
1081 vp = &is->pictq[is->pictq_rindex];
1083 if (time < vp->target_clock)
1085 /* update current video pts */
1086 is->video_current_pts = vp->pts;
1087 is->video_current_pts_drift = is->video_current_pts - time;
1088 is->video_current_pos = vp->pos;
1089 if (is->pictq_size > 1) {
1090 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1091 assert(nextvp->target_clock >= vp->target_clock);
1092 next_target= nextvp->target_clock;
1094 next_target = vp->target_clock + is->video_clock - vp->pts; // FIXME pass durations cleanly
1096 if (framedrop && time > next_target) {
1097 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1098 if (is->pictq_size > 1 || time > next_target + 0.5) {
1099 /* update queue size and signal for next picture */
1100 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1101 is->pictq_rindex = 0;
1103 SDL_LockMutex(is->pictq_mutex);
1105 SDL_CondSignal(is->pictq_cond);
1106 SDL_UnlockMutex(is->pictq_mutex);
1111 if (is->subtitle_st) {
1112 if (is->subtitle_stream_changed) {
1113 SDL_LockMutex(is->subpq_mutex);
1115 while (is->subpq_size) {
1116 free_subpicture(&is->subpq[is->subpq_rindex]);
1118 /* update queue size and signal for next picture */
1119 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1120 is->subpq_rindex = 0;
1124 is->subtitle_stream_changed = 0;
1126 SDL_CondSignal(is->subpq_cond);
1127 SDL_UnlockMutex(is->subpq_mutex);
1129 if (is->subpq_size > 0) {
1130 sp = &is->subpq[is->subpq_rindex];
1132 if (is->subpq_size > 1)
1133 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1137 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1138 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1140 free_subpicture(sp);
1142 /* update queue size and signal for next picture */
1143 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1144 is->subpq_rindex = 0;
1146 SDL_LockMutex(is->subpq_mutex);
1148 SDL_CondSignal(is->subpq_cond);
1149 SDL_UnlockMutex(is->subpq_mutex);
1155 /* display picture */
1156 if (!display_disable)
1159 /* update queue size and signal for next picture */
1160 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1161 is->pictq_rindex = 0;
1163 SDL_LockMutex(is->pictq_mutex);
1165 SDL_CondSignal(is->pictq_cond);
1166 SDL_UnlockMutex(is->pictq_mutex);
1168 } else if (is->audio_st) {
1169 /* draw the next audio frame */
1171 /* if only audio stream, then display the audio bars (better
1172 than nothing, just to test the implementation */
1174 /* display picture */
1175 if (!display_disable)
1179 static int64_t last_time;
1181 int aqsize, vqsize, sqsize;
1184 cur_time = av_gettime_relative();
1185 if (!last_time || (cur_time - last_time) >= 30000) {
1190 aqsize = is->audioq.size;
1192 vqsize = is->videoq.size;
1193 if (is->subtitle_st)
1194 sqsize = is->subtitleq.size;
1196 if (is->audio_st && is->video_st)
1197 av_diff = get_audio_clock(is) - get_video_clock(is);
1198 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1199 get_master_clock(is), av_diff, FFMAX(is->skip_frames - 1, 0), aqsize / 1024,
1200 vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
1202 last_time = cur_time;
1207 static void stream_close(VideoState *is)
1211 /* XXX: use a special url_shutdown call to abort parse cleanly */
1212 is->abort_request = 1;
1213 SDL_WaitThread(is->parse_tid, NULL);
1214 SDL_WaitThread(is->refresh_tid, NULL);
1216 /* free all pictures */
1217 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1220 SDL_FreeYUVOverlay(vp->bmp);
1224 SDL_DestroyMutex(is->pictq_mutex);
1225 SDL_DestroyCond(is->pictq_cond);
1226 SDL_DestroyMutex(is->subpq_mutex);
1227 SDL_DestroyCond(is->subpq_cond);
1228 #if !CONFIG_AVFILTER
1229 if (is->img_convert_ctx)
1230 sws_freeContext(is->img_convert_ctx);
1235 static void do_exit(void)
1238 stream_close(cur_stream);
1242 avformat_network_deinit();
1246 av_log(NULL, AV_LOG_QUIET, "");
1250 /* allocate a picture (needs to do that in main thread to avoid
1251 potential locking problems */
1252 static void alloc_picture(void *opaque)
1254 VideoState *is = opaque;
1257 vp = &is->pictq[is->pictq_windex];
1260 SDL_FreeYUVOverlay(vp->bmp);
1263 vp->width = is->out_video_filter->inputs[0]->w;
1264 vp->height = is->out_video_filter->inputs[0]->h;
1265 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1267 vp->width = is->video_st->codec->width;
1268 vp->height = is->video_st->codec->height;
1269 vp->pix_fmt = is->video_st->codec->pix_fmt;
1272 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1275 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1276 /* SDL allocates a buffer smaller than requested if the video
1277 * overlay hardware is unable to support the requested size. */
1278 fprintf(stderr, "Error: the video system does not support an image\n"
1279 "size of %dx%d pixels. Try using -vf \"scale=w:h\"\n"
1280 "to reduce the image size.\n", vp->width, vp->height );
1284 SDL_LockMutex(is->pictq_mutex);
1286 SDL_CondSignal(is->pictq_cond);
1287 SDL_UnlockMutex(is->pictq_mutex);
1290 /* The 'pts' parameter is the dts of the packet / pts of the frame and
1291 * guessed if not known. */
1292 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1295 #if !CONFIG_AVFILTER
1296 int dst_pix_fmt = AV_PIX_FMT_YUV420P;
1298 /* wait until we have space to put a new picture */
1299 SDL_LockMutex(is->pictq_mutex);
1301 if (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1302 is->skip_frames = FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0 - FRAME_SKIP_FACTOR));
1304 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1305 !is->videoq.abort_request) {
1306 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1308 SDL_UnlockMutex(is->pictq_mutex);
1310 if (is->videoq.abort_request)
1313 vp = &is->pictq[is->pictq_windex];
1315 vp->sar = src_frame->sample_aspect_ratio;
1317 /* alloc or resize hardware picture buffer */
1318 if (!vp->bmp || vp->reallocate ||
1320 vp->width != is->out_video_filter->inputs[0]->w ||
1321 vp->height != is->out_video_filter->inputs[0]->h) {
1323 vp->width != is->video_st->codec->width ||
1324 vp->height != is->video_st->codec->height) {
1331 /* the allocation must be done in the main thread to avoid
1333 event.type = FF_ALLOC_EVENT;
1334 event.user.data1 = is;
1335 SDL_PushEvent(&event);
1337 /* wait until the picture is allocated */
1338 SDL_LockMutex(is->pictq_mutex);
1339 while (!vp->allocated && !is->videoq.abort_request) {
1340 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1342 SDL_UnlockMutex(is->pictq_mutex);
1344 if (is->videoq.abort_request)
1348 /* if the frame is not skipped, then display it */
1353 /* get a pointer on the bitmap */
1354 SDL_LockYUVOverlay (vp->bmp);
1356 data[0] = vp->bmp->pixels[0];
1357 data[1] = vp->bmp->pixels[2];
1358 data[2] = vp->bmp->pixels[1];
1360 linesize[0] = vp->bmp->pitches[0];
1361 linesize[1] = vp->bmp->pitches[2];
1362 linesize[2] = vp->bmp->pitches[1];
1365 // FIXME use direct rendering
1366 av_image_copy(data, linesize, src_frame->data, src_frame->linesize,
1367 vp->pix_fmt, vp->width, vp->height);
1369 av_opt_get_int(sws_opts, "sws_flags", 0, &sws_flags);
1370 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1371 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1372 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1373 if (!is->img_convert_ctx) {
1374 fprintf(stderr, "Cannot initialize the conversion context\n");
1377 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1378 0, vp->height, data, linesize);
1380 /* update the bitmap content */
1381 SDL_UnlockYUVOverlay(vp->bmp);
1386 /* now we can update the picture count */
1387 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1388 is->pictq_windex = 0;
1389 SDL_LockMutex(is->pictq_mutex);
1390 vp->target_clock = compute_target_time(vp->pts, is);
1393 SDL_UnlockMutex(is->pictq_mutex);
1398 /* Compute the exact PTS for the picture if it is omitted in the stream.
1399 * The 'pts1' parameter is the dts of the packet / pts of the frame. */
1400 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1402 double frame_delay, pts;
1408 /* update video clock with pts, if present */
1409 is->video_clock = pts;
1411 pts = is->video_clock;
1413 /* update video clock for next frame */
1414 frame_delay = av_q2d(is->video_st->codec->time_base);
1415 /* for MPEG2, the frame can be repeated, so we update the
1416 clock accordingly */
1417 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1418 is->video_clock += frame_delay;
1420 ret = queue_picture(is, src_frame, pts, pos);
1421 av_frame_unref(src_frame);
1425 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1429 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1432 if (pkt->data == flush_pkt.data) {
1433 avcodec_flush_buffers(is->video_st->codec);
1435 SDL_LockMutex(is->pictq_mutex);
1436 // Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1437 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1438 is->pictq[i].target_clock= 0;
1440 while (is->pictq_size && !is->videoq.abort_request) {
1441 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1443 is->video_current_pos = -1;
1444 SDL_UnlockMutex(is->pictq_mutex);
1446 init_pts_correction(&is->pts_ctx);
1447 is->frame_last_pts = AV_NOPTS_VALUE;
1448 is->frame_last_delay = 0;
1449 is->frame_timer = (double)av_gettime_relative() / 1000000.0;
1450 is->skip_frames = 1;
1451 is->skip_frames_index = 0;
1455 avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
1458 if (decoder_reorder_pts == -1) {
1459 *pts = guess_correct_pts(&is->pts_ctx, frame->pkt_pts, frame->pkt_dts);
1460 } else if (decoder_reorder_pts) {
1461 *pts = frame->pkt_pts;
1463 *pts = frame->pkt_dts;
1466 if (*pts == AV_NOPTS_VALUE) {
1469 if (is->video_st->sample_aspect_ratio.num) {
1470 frame->sample_aspect_ratio = is->video_st->sample_aspect_ratio;
1473 is->skip_frames_index += 1;
1474 if (is->skip_frames_index >= is->skip_frames) {
1475 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1478 av_frame_unref(frame);
1484 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1486 char sws_flags_str[128];
1487 char buffersrc_args[256];
1489 AVFilterContext *filt_src = NULL, *filt_out = NULL, *last_filter;
1490 AVCodecContext *codec = is->video_st->codec;
1492 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%"PRId64, sws_flags);
1493 graph->scale_sws_opts = av_strdup(sws_flags_str);
1495 snprintf(buffersrc_args, sizeof(buffersrc_args), "%d:%d:%d:%d:%d:%d:%d",
1496 codec->width, codec->height, codec->pix_fmt,
1497 is->video_st->time_base.num, is->video_st->time_base.den,
1498 codec->sample_aspect_ratio.num, codec->sample_aspect_ratio.den);
1501 if ((ret = avfilter_graph_create_filter(&filt_src,
1502 avfilter_get_by_name("buffer"),
1503 "src", buffersrc_args, NULL,
1506 if ((ret = avfilter_graph_create_filter(&filt_out,
1507 avfilter_get_by_name("buffersink"),
1508 "out", NULL, NULL, graph)) < 0)
1511 last_filter = filt_out;
1513 /* Note: this macro adds a filter before the lastly added filter, so the
1514 * processing order of the filters is in reverse */
1515 #define INSERT_FILT(name, arg) do { \
1516 AVFilterContext *filt_ctx; \
1518 ret = avfilter_graph_create_filter(&filt_ctx, \
1519 avfilter_get_by_name(name), \
1520 "avplay_" name, arg, NULL, graph); \
1524 ret = avfilter_link(filt_ctx, 0, last_filter, 0); \
1528 last_filter = filt_ctx; \
1531 INSERT_FILT("format", "yuv420p");
1534 uint8_t* displaymatrix = av_stream_get_side_data(is->video_st,
1535 AV_PKT_DATA_DISPLAYMATRIX, NULL);
1536 if (displaymatrix) {
1537 double rot = av_display_rotation_get((int32_t*) displaymatrix);
1538 if (rot < -135 || rot > 135) {
1539 INSERT_FILT("vflip", NULL);
1540 INSERT_FILT("hflip", NULL);
1541 } else if (rot < -45) {
1542 INSERT_FILT("transpose", "dir=clock");
1543 } else if (rot > 45) {
1544 INSERT_FILT("transpose", "dir=cclock");
1550 AVFilterInOut *outputs = avfilter_inout_alloc();
1551 AVFilterInOut *inputs = avfilter_inout_alloc();
1553 outputs->name = av_strdup("in");
1554 outputs->filter_ctx = filt_src;
1555 outputs->pad_idx = 0;
1556 outputs->next = NULL;
1558 inputs->name = av_strdup("out");
1559 inputs->filter_ctx = last_filter;
1560 inputs->pad_idx = 0;
1561 inputs->next = NULL;
1563 if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1566 if ((ret = avfilter_link(filt_src, 0, last_filter, 0)) < 0)
1570 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1573 is->in_video_filter = filt_src;
1574 is->out_video_filter = filt_out;
1579 #endif /* CONFIG_AVFILTER */
1581 static int video_thread(void *arg)
1583 AVPacket pkt = { 0 };
1584 VideoState *is = arg;
1585 AVFrame *frame = av_frame_alloc();
1591 AVFilterGraph *graph = avfilter_graph_alloc();
1592 AVFilterContext *filt_out = NULL, *filt_in = NULL;
1593 int last_w = is->video_st->codec->width;
1594 int last_h = is->video_st->codec->height;
1596 av_frame_free(&frame);
1597 return AVERROR(ENOMEM);
1600 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1602 filt_in = is->in_video_filter;
1603 filt_out = is->out_video_filter;
1608 avfilter_graph_free(&graph);
1610 return AVERROR(ENOMEM);
1617 while (is->paused && !is->videoq.abort_request)
1620 av_packet_unref(&pkt);
1622 ret = get_video_frame(is, frame, &pts_int, &pkt);
1630 if ( last_w != is->video_st->codec->width
1631 || last_h != is->video_st->codec->height) {
1632 av_log(NULL, AV_LOG_TRACE, "Changing size %dx%d -> %dx%d\n", last_w, last_h,
1633 is->video_st->codec->width, is->video_st->codec->height);
1634 avfilter_graph_free(&graph);
1635 graph = avfilter_graph_alloc();
1636 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1638 filt_in = is->in_video_filter;
1639 filt_out = is->out_video_filter;
1640 last_w = is->video_st->codec->width;
1641 last_h = is->video_st->codec->height;
1644 frame->pts = pts_int;
1645 ret = av_buffersrc_add_frame(filt_in, frame);
1650 ret = av_buffersink_get_frame(filt_out, frame);
1656 pts_int = frame->pts;
1657 tb = filt_out->inputs[0]->time_base;
1658 if (av_cmp_q(tb, is->video_st->time_base)) {
1659 av_unused int64_t pts1 = pts_int;
1660 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1661 av_log(NULL, AV_LOG_TRACE, "video_thread(): "
1662 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1663 tb.num, tb.den, pts1,
1664 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1666 pts = pts_int * av_q2d(is->video_st->time_base);
1667 ret = output_picture2(is, frame, pts, 0);
1670 pts = pts_int * av_q2d(is->video_st->time_base);
1671 ret = output_picture2(is, frame, pts, pkt.pos);
1680 stream_pause(cur_stream);
1684 av_freep(&vfilters);
1685 avfilter_graph_free(&graph);
1687 av_packet_unref(&pkt);
1688 av_frame_free(&frame);
1692 static int subtitle_thread(void *arg)
1694 VideoState *is = arg;
1696 AVPacket pkt1, *pkt = &pkt1;
1700 int r, g, b, y, u, v, a;
1703 while (is->paused && !is->subtitleq.abort_request) {
1706 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1709 if (pkt->data == flush_pkt.data) {
1710 avcodec_flush_buffers(is->subtitle_st->codec);
1713 SDL_LockMutex(is->subpq_mutex);
1714 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1715 !is->subtitleq.abort_request) {
1716 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1718 SDL_UnlockMutex(is->subpq_mutex);
1720 if (is->subtitleq.abort_request)
1723 sp = &is->subpq[is->subpq_windex];
1725 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1726 this packet, if any */
1728 if (pkt->pts != AV_NOPTS_VALUE)
1729 pts = av_q2d(is->subtitle_st->time_base) * pkt->pts;
1731 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1732 &got_subtitle, pkt);
1734 if (got_subtitle && sp->sub.format == 0) {
1737 for (i = 0; i < sp->sub.num_rects; i++)
1739 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1741 RGBA_IN(r, g, b, a, (uint32_t *)sp->sub.rects[i]->data[1] + j);
1742 y = RGB_TO_Y_CCIR(r, g, b);
1743 u = RGB_TO_U_CCIR(r, g, b, 0);
1744 v = RGB_TO_V_CCIR(r, g, b, 0);
1745 YUVA_OUT((uint32_t *)sp->sub.rects[i]->data[1] + j, y, u, v, a);
1749 /* now we can update the picture count */
1750 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1751 is->subpq_windex = 0;
1752 SDL_LockMutex(is->subpq_mutex);
1754 SDL_UnlockMutex(is->subpq_mutex);
1756 av_packet_unref(pkt);
1761 /* copy samples for viewing in editor window */
1762 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1766 size = samples_size / sizeof(short);
1768 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1771 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1773 is->sample_array_index += len;
1774 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1775 is->sample_array_index = 0;
1780 /* return the new audio buffer size (samples can be added or deleted
1781 to get better sync if video or external master clock) */
1782 static int synchronize_audio(VideoState *is, short *samples,
1783 int samples_size1, double pts)
1785 int n, samples_size;
1788 n = is->sdl_channels * av_get_bytes_per_sample(is->sdl_sample_fmt);
1789 samples_size = samples_size1;
1791 /* if not master, then we try to remove or add samples to correct the clock */
1792 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1793 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1794 double diff, avg_diff;
1795 int wanted_size, min_size, max_size, nb_samples;
1797 ref_clock = get_master_clock(is);
1798 diff = get_audio_clock(is) - ref_clock;
1800 if (diff < AV_NOSYNC_THRESHOLD) {
1801 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1802 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1803 /* not enough measures to have a correct estimate */
1804 is->audio_diff_avg_count++;
1806 /* estimate the A-V difference */
1807 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1809 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1810 wanted_size = samples_size + ((int)(diff * is->sdl_sample_rate) * n);
1811 nb_samples = samples_size / n;
1813 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1814 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1815 if (wanted_size < min_size)
1816 wanted_size = min_size;
1817 else if (wanted_size > max_size)
1818 wanted_size = max_size;
1820 /* add or remove samples to correction the synchro */
1821 if (wanted_size < samples_size) {
1822 /* remove samples */
1823 samples_size = wanted_size;
1824 } else if (wanted_size > samples_size) {
1825 uint8_t *samples_end, *q;
1829 nb = (samples_size - wanted_size);
1830 samples_end = (uint8_t *)samples + samples_size - n;
1831 q = samples_end + n;
1833 memcpy(q, samples_end, n);
1837 samples_size = wanted_size;
1840 av_log(NULL, AV_LOG_TRACE, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1841 diff, avg_diff, samples_size - samples_size1,
1842 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1845 /* too big difference : may be initial PTS errors, so
1847 is->audio_diff_avg_count = 0;
1848 is->audio_diff_cum = 0;
1852 return samples_size;
1855 /* decode one audio frame and returns its uncompressed size */
1856 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1858 AVPacket *pkt_temp = &is->audio_pkt_temp;
1859 AVPacket *pkt = &is->audio_pkt;
1860 AVCodecContext *dec = is->audio_st->codec;
1861 int n, len1, data_size, got_frame;
1864 int flush_complete = 0;
1867 /* NOTE: the audio packet can contain several frames */
1868 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
1869 int resample_changed, audio_resample;
1872 if (!(is->frame = av_frame_alloc()))
1873 return AVERROR(ENOMEM);
1879 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
1881 /* if error, we skip the frame */
1886 pkt_temp->data += len1;
1887 pkt_temp->size -= len1;
1890 /* stop sending empty packets if the decoder is finished */
1891 if (!pkt_temp->data && (dec->codec->capabilities & AV_CODEC_CAP_DELAY))
1895 data_size = av_samples_get_buffer_size(NULL, dec->channels,
1896 is->frame->nb_samples,
1897 is->frame->format, 1);
1899 audio_resample = is->frame->format != is->sdl_sample_fmt ||
1900 is->frame->channel_layout != is->sdl_channel_layout ||
1901 is->frame->sample_rate != is->sdl_sample_rate;
1903 resample_changed = is->frame->format != is->resample_sample_fmt ||
1904 is->frame->channel_layout != is->resample_channel_layout ||
1905 is->frame->sample_rate != is->resample_sample_rate;
1907 if ((!is->avr && audio_resample) || resample_changed) {
1910 avresample_close(is->avr);
1911 else if (audio_resample) {
1912 is->avr = avresample_alloc_context();
1914 fprintf(stderr, "error allocating AVAudioResampleContext\n");
1918 if (audio_resample) {
1919 av_opt_set_int(is->avr, "in_channel_layout", is->frame->channel_layout, 0);
1920 av_opt_set_int(is->avr, "in_sample_fmt", is->frame->format, 0);
1921 av_opt_set_int(is->avr, "in_sample_rate", is->frame->sample_rate, 0);
1922 av_opt_set_int(is->avr, "out_channel_layout", is->sdl_channel_layout, 0);
1923 av_opt_set_int(is->avr, "out_sample_fmt", is->sdl_sample_fmt, 0);
1924 av_opt_set_int(is->avr, "out_sample_rate", is->sdl_sample_rate, 0);
1926 if ((ret = avresample_open(is->avr)) < 0) {
1927 fprintf(stderr, "error initializing libavresample\n");
1931 is->resample_sample_fmt = is->frame->format;
1932 is->resample_channel_layout = is->frame->channel_layout;
1933 is->resample_sample_rate = is->frame->sample_rate;
1936 if (audio_resample) {
1938 int out_samples, out_size, out_linesize;
1939 int osize = av_get_bytes_per_sample(is->sdl_sample_fmt);
1940 int nb_samples = is->frame->nb_samples;
1942 out_size = av_samples_get_buffer_size(&out_linesize,
1945 is->sdl_sample_fmt, 0);
1946 tmp_out = av_realloc(is->audio_buf1, out_size);
1948 return AVERROR(ENOMEM);
1949 is->audio_buf1 = tmp_out;
1951 out_samples = avresample_convert(is->avr,
1953 out_linesize, nb_samples,
1955 is->frame->linesize[0],
1956 is->frame->nb_samples);
1957 if (out_samples < 0) {
1958 fprintf(stderr, "avresample_convert() failed\n");
1961 is->audio_buf = is->audio_buf1;
1962 data_size = out_samples * osize * is->sdl_channels;
1964 is->audio_buf = is->frame->data[0];
1967 /* if no pts, then compute it */
1968 pts = is->audio_clock;
1970 n = is->sdl_channels * av_get_bytes_per_sample(is->sdl_sample_fmt);
1971 is->audio_clock += (double)data_size /
1972 (double)(n * is->sdl_sample_rate);
1975 static double last_clock;
1976 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1977 is->audio_clock - last_clock,
1978 is->audio_clock, pts);
1979 last_clock = is->audio_clock;
1985 /* free the current packet */
1987 av_packet_unref(pkt);
1988 memset(pkt_temp, 0, sizeof(*pkt_temp));
1990 if (is->paused || is->audioq.abort_request) {
1994 /* read next packet */
1995 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
1998 if (pkt->data == flush_pkt.data) {
1999 avcodec_flush_buffers(dec);
2005 /* if update the audio clock with the pts */
2006 if (pkt->pts != AV_NOPTS_VALUE) {
2007 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2012 /* prepare a new audio buffer */
2013 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2015 VideoState *is = opaque;
2016 int audio_size, len1;
2019 audio_callback_time = av_gettime_relative();
2022 if (is->audio_buf_index >= is->audio_buf_size) {
2023 audio_size = audio_decode_frame(is, &pts);
2024 if (audio_size < 0) {
2025 /* if error, just output silence */
2026 is->audio_buf = is->silence_buf;
2027 is->audio_buf_size = sizeof(is->silence_buf);
2030 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2031 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2033 is->audio_buf_size = audio_size;
2035 is->audio_buf_index = 0;
2037 len1 = is->audio_buf_size - is->audio_buf_index;
2040 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2043 is->audio_buf_index += len1;
2047 /* open a given stream. Return 0 if OK */
2048 static int stream_component_open(VideoState *is, int stream_index)
2050 AVFormatContext *ic = is->ic;
2051 AVCodecContext *avctx;
2053 SDL_AudioSpec wanted_spec, spec;
2055 AVDictionaryEntry *t = NULL;
2058 if (stream_index < 0 || stream_index >= ic->nb_streams)
2060 avctx = ic->streams[stream_index]->codec;
2062 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], NULL);
2064 codec = avcodec_find_decoder(avctx->codec_id);
2065 avctx->workaround_bugs = workaround_bugs;
2066 avctx->idct_algo = idct;
2067 avctx->skip_frame = skip_frame;
2068 avctx->skip_idct = skip_idct;
2069 avctx->skip_loop_filter = skip_loop_filter;
2070 avctx->error_concealment = error_concealment;
2073 avctx->flags2 |= AV_CODEC_FLAG2_FAST;
2075 if (!av_dict_get(opts, "threads", NULL, 0))
2076 av_dict_set(&opts, "threads", "auto", 0);
2077 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO)
2078 av_dict_set(&opts, "refcounted_frames", "1", 0);
2080 (ret = avcodec_open2(avctx, codec, &opts)) < 0) {
2083 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2084 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2085 ret = AVERROR_OPTION_NOT_FOUND;
2089 /* prepare audio output */
2090 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2091 is->sdl_sample_rate = avctx->sample_rate;
2093 if (!avctx->channel_layout)
2094 avctx->channel_layout = av_get_default_channel_layout(avctx->channels);
2095 if (!avctx->channel_layout) {
2096 fprintf(stderr, "unable to guess channel layout\n");
2097 ret = AVERROR_INVALIDDATA;
2100 if (avctx->channels == 1)
2101 is->sdl_channel_layout = AV_CH_LAYOUT_MONO;
2103 is->sdl_channel_layout = AV_CH_LAYOUT_STEREO;
2104 is->sdl_channels = av_get_channel_layout_nb_channels(is->sdl_channel_layout);
2106 wanted_spec.format = AUDIO_S16SYS;
2107 wanted_spec.freq = is->sdl_sample_rate;
2108 wanted_spec.channels = is->sdl_channels;
2109 wanted_spec.silence = 0;
2110 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2111 wanted_spec.callback = sdl_audio_callback;
2112 wanted_spec.userdata = is;
2113 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2114 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2115 ret = AVERROR_UNKNOWN;
2118 is->audio_hw_buf_size = spec.size;
2119 is->sdl_sample_fmt = AV_SAMPLE_FMT_S16;
2120 is->resample_sample_fmt = is->sdl_sample_fmt;
2121 is->resample_channel_layout = avctx->channel_layout;
2122 is->resample_sample_rate = avctx->sample_rate;
2125 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2126 switch (avctx->codec_type) {
2127 case AVMEDIA_TYPE_AUDIO:
2128 is->audio_stream = stream_index;
2129 is->audio_st = ic->streams[stream_index];
2130 is->audio_buf_size = 0;
2131 is->audio_buf_index = 0;
2133 /* init averaging filter */
2134 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2135 is->audio_diff_avg_count = 0;
2136 /* since we do not have a precise anough audio fifo fullness,
2137 we correct audio sync only if larger than this threshold */
2138 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2140 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2141 packet_queue_init(&is->audioq);
2144 case AVMEDIA_TYPE_VIDEO:
2145 is->video_stream = stream_index;
2146 is->video_st = ic->streams[stream_index];
2148 packet_queue_init(&is->videoq);
2149 is->video_tid = SDL_CreateThread(video_thread, is);
2151 case AVMEDIA_TYPE_SUBTITLE:
2152 is->subtitle_stream = stream_index;
2153 is->subtitle_st = ic->streams[stream_index];
2154 packet_queue_init(&is->subtitleq);
2156 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2163 av_dict_free(&opts);
2168 static void stream_component_close(VideoState *is, int stream_index)
2170 AVFormatContext *ic = is->ic;
2171 AVCodecContext *avctx;
2173 if (stream_index < 0 || stream_index >= ic->nb_streams)
2175 avctx = ic->streams[stream_index]->codec;
2177 switch (avctx->codec_type) {
2178 case AVMEDIA_TYPE_AUDIO:
2179 packet_queue_abort(&is->audioq);
2183 packet_queue_end(&is->audioq);
2184 av_packet_unref(&is->audio_pkt);
2186 avresample_free(&is->avr);
2187 av_freep(&is->audio_buf1);
2188 is->audio_buf = NULL;
2189 av_frame_free(&is->frame);
2192 av_rdft_end(is->rdft);
2193 av_freep(&is->rdft_data);
2198 case AVMEDIA_TYPE_VIDEO:
2199 packet_queue_abort(&is->videoq);
2201 /* note: we also signal this mutex to make sure we deblock the
2202 video thread in all cases */
2203 SDL_LockMutex(is->pictq_mutex);
2204 SDL_CondSignal(is->pictq_cond);
2205 SDL_UnlockMutex(is->pictq_mutex);
2207 SDL_WaitThread(is->video_tid, NULL);
2209 packet_queue_end(&is->videoq);
2211 case AVMEDIA_TYPE_SUBTITLE:
2212 packet_queue_abort(&is->subtitleq);
2214 /* note: we also signal this mutex to make sure we deblock the
2215 video thread in all cases */
2216 SDL_LockMutex(is->subpq_mutex);
2217 is->subtitle_stream_changed = 1;
2219 SDL_CondSignal(is->subpq_cond);
2220 SDL_UnlockMutex(is->subpq_mutex);
2222 SDL_WaitThread(is->subtitle_tid, NULL);
2224 packet_queue_end(&is->subtitleq);
2230 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2231 avcodec_close(avctx);
2232 switch (avctx->codec_type) {
2233 case AVMEDIA_TYPE_AUDIO:
2234 is->audio_st = NULL;
2235 is->audio_stream = -1;
2237 case AVMEDIA_TYPE_VIDEO:
2238 is->video_st = NULL;
2239 is->video_stream = -1;
2241 case AVMEDIA_TYPE_SUBTITLE:
2242 is->subtitle_st = NULL;
2243 is->subtitle_stream = -1;
2250 /* since we have only one decoding thread, we can use a global
2251 variable instead of a thread local variable */
2252 static VideoState *global_video_state;
2254 static int decode_interrupt_cb(void *ctx)
2256 return global_video_state && global_video_state->abort_request;
2259 /* this thread gets the stream from the disk or the network */
2260 static int decode_thread(void *arg)
2262 VideoState *is = arg;
2263 AVFormatContext *ic = NULL;
2265 int st_index[AVMEDIA_TYPE_NB];
2266 AVPacket pkt1, *pkt = &pkt1;
2268 int pkt_in_play_range = 0;
2269 AVDictionaryEntry *t;
2270 AVDictionary **opts;
2271 int orig_nb_streams;
2273 memset(st_index, -1, sizeof(st_index));
2274 is->video_stream = -1;
2275 is->audio_stream = -1;
2276 is->subtitle_stream = -1;
2278 global_video_state = is;
2280 ic = avformat_alloc_context();
2282 av_log(NULL, AV_LOG_FATAL, "Could not allocate context.\n");
2283 ret = AVERROR(ENOMEM);
2286 ic->interrupt_callback.callback = decode_interrupt_cb;
2287 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2289 print_error(is->filename, err);
2293 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2294 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2295 ret = AVERROR_OPTION_NOT_FOUND;
2301 ic->flags |= AVFMT_FLAG_GENPTS;
2303 opts = setup_find_stream_info_opts(ic, codec_opts);
2304 orig_nb_streams = ic->nb_streams;
2306 err = avformat_find_stream_info(ic, opts);
2308 for (i = 0; i < orig_nb_streams; i++)
2309 av_dict_free(&opts[i]);
2313 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2319 ic->pb->eof_reached = 0; // FIXME hack, avplay maybe should not use url_feof() to test for the end
2321 if (seek_by_bytes < 0)
2322 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2324 /* if seeking requested, we execute it */
2325 if (start_time != AV_NOPTS_VALUE) {
2328 timestamp = start_time;
2329 /* add the stream start time */
2330 if (ic->start_time != AV_NOPTS_VALUE)
2331 timestamp += ic->start_time;
2332 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2334 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2335 is->filename, (double)timestamp / AV_TIME_BASE);
2339 for (i = 0; i < ic->nb_streams; i++)
2340 ic->streams[i]->discard = AVDISCARD_ALL;
2342 st_index[AVMEDIA_TYPE_VIDEO] =
2343 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2344 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2346 st_index[AVMEDIA_TYPE_AUDIO] =
2347 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2348 wanted_stream[AVMEDIA_TYPE_AUDIO],
2349 st_index[AVMEDIA_TYPE_VIDEO],
2352 st_index[AVMEDIA_TYPE_SUBTITLE] =
2353 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2354 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2355 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2356 st_index[AVMEDIA_TYPE_AUDIO] :
2357 st_index[AVMEDIA_TYPE_VIDEO]),
2360 av_dump_format(ic, 0, is->filename, 0);
2363 /* open the streams */
2364 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2365 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2369 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2370 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2372 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2374 if (!display_disable)
2378 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2379 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2382 if (is->video_stream < 0 && is->audio_stream < 0) {
2383 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2389 if (is->abort_request)
2391 if (is->paused != is->last_paused) {
2392 is->last_paused = is->paused;
2394 is->read_pause_return = av_read_pause(ic);
2398 #if CONFIG_RTSP_DEMUXER
2399 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2400 /* wait 10 ms to avoid trying to get another packet */
2407 int64_t seek_target = is->seek_pos;
2408 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2409 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2410 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2411 // of the seek_pos/seek_rel variables
2413 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2415 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2417 if (is->audio_stream >= 0) {
2418 packet_queue_flush(&is->audioq);
2419 packet_queue_put(&is->audioq, &flush_pkt);
2421 if (is->subtitle_stream >= 0) {
2422 packet_queue_flush(&is->subtitleq);
2423 packet_queue_put(&is->subtitleq, &flush_pkt);
2425 if (is->video_stream >= 0) {
2426 packet_queue_flush(&is->videoq);
2427 packet_queue_put(&is->videoq, &flush_pkt);
2434 /* if the queue are full, no need to read more */
2435 if (!infinite_buffer &&
2436 (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2437 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream < 0)
2438 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0)
2439 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0)))) {
2445 if (is->video_stream >= 0) {
2446 av_init_packet(pkt);
2449 pkt->stream_index = is->video_stream;
2450 packet_queue_put(&is->videoq, pkt);
2452 if (is->audio_stream >= 0 &&
2453 (is->audio_st->codec->codec->capabilities & AV_CODEC_CAP_DELAY)) {
2454 av_init_packet(pkt);
2457 pkt->stream_index = is->audio_stream;
2458 packet_queue_put(&is->audioq, pkt);
2461 if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) {
2462 if (loop != 1 && (!loop || --loop)) {
2463 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2464 } else if (!noautoexit) {
2471 ret = av_read_frame(ic, pkt);
2473 if (ret == AVERROR_EOF || (ic->pb && ic->pb->eof_reached))
2475 if (ic->pb && ic->pb->error)
2477 SDL_Delay(100); /* wait for user event */
2480 /* check if packet is in play range specified by user, then queue, otherwise discard */
2481 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2482 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2483 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2484 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2485 <= ((double)duration / 1000000);
2486 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2487 packet_queue_put(&is->audioq, pkt);
2488 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2489 packet_queue_put(&is->videoq, pkt);
2490 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2491 packet_queue_put(&is->subtitleq, pkt);
2493 av_packet_unref(pkt);
2496 /* wait until the end */
2497 while (!is->abort_request) {
2503 /* disable interrupting */
2504 global_video_state = NULL;
2506 /* close each stream */
2507 if (is->audio_stream >= 0)
2508 stream_component_close(is, is->audio_stream);
2509 if (is->video_stream >= 0)
2510 stream_component_close(is, is->video_stream);
2511 if (is->subtitle_stream >= 0)
2512 stream_component_close(is, is->subtitle_stream);
2514 avformat_close_input(&is->ic);
2520 event.type = FF_QUIT_EVENT;
2521 event.user.data1 = is;
2522 SDL_PushEvent(&event);
2527 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2531 is = av_mallocz(sizeof(VideoState));
2534 av_strlcpy(is->filename, filename, sizeof(is->filename));
2535 is->iformat = iformat;
2539 /* start video display */
2540 is->pictq_mutex = SDL_CreateMutex();
2541 is->pictq_cond = SDL_CreateCond();
2543 is->subpq_mutex = SDL_CreateMutex();
2544 is->subpq_cond = SDL_CreateCond();
2546 is->av_sync_type = av_sync_type;
2547 is->parse_tid = SDL_CreateThread(decode_thread, is);
2548 if (!is->parse_tid) {
2555 static void stream_cycle_channel(VideoState *is, int codec_type)
2557 AVFormatContext *ic = is->ic;
2558 int start_index, stream_index;
2561 if (codec_type == AVMEDIA_TYPE_VIDEO)
2562 start_index = is->video_stream;
2563 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2564 start_index = is->audio_stream;
2566 start_index = is->subtitle_stream;
2567 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2569 stream_index = start_index;
2571 if (++stream_index >= is->ic->nb_streams)
2573 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2580 if (stream_index == start_index)
2582 st = ic->streams[stream_index];
2583 if (st->codec->codec_type == codec_type) {
2584 /* check that parameters are OK */
2585 switch (codec_type) {
2586 case AVMEDIA_TYPE_AUDIO:
2587 if (st->codec->sample_rate != 0 &&
2588 st->codec->channels != 0)
2591 case AVMEDIA_TYPE_VIDEO:
2592 case AVMEDIA_TYPE_SUBTITLE:
2600 stream_component_close(is, start_index);
2601 stream_component_open(is, stream_index);
2605 static void toggle_full_screen(void)
2607 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2608 /* OS X needs to empty the picture_queue */
2610 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++)
2611 cur_stream->pictq[i].reallocate = 1;
2613 is_full_screen = !is_full_screen;
2614 video_open(cur_stream);
2617 static void toggle_pause(void)
2620 stream_pause(cur_stream);
2624 static void step_to_next_frame(void)
2627 /* if the stream is paused unpause it, then step */
2628 if (cur_stream->paused)
2629 stream_pause(cur_stream);
2634 static void toggle_audio_display(void)
2637 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2638 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2639 fill_rectangle(screen,
2640 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2642 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2646 static void seek_chapter(VideoState *is, int incr)
2648 int64_t pos = get_master_clock(is) * AV_TIME_BASE;
2651 if (!is->ic->nb_chapters)
2654 /* find the current chapter */
2655 for (i = 0; i < is->ic->nb_chapters; i++) {
2656 AVChapter *ch = is->ic->chapters[i];
2657 if (av_compare_ts(pos, AV_TIME_BASE_Q, ch->start, ch->time_base) < 0) {
2665 if (i >= is->ic->nb_chapters)
2668 av_log(NULL, AV_LOG_VERBOSE, "Seeking to chapter %d.\n", i);
2669 stream_seek(is, av_rescale_q(is->ic->chapters[i]->start, is->ic->chapters[i]->time_base,
2670 AV_TIME_BASE_Q), 0, 0);
2673 /* handle an event sent by the GUI */
2674 static void event_loop(void)
2677 double incr, pos, frac;
2681 SDL_WaitEvent(&event);
2682 switch (event.type) {
2684 if (exit_on_keydown) {
2688 switch (event.key.keysym.sym) {
2694 toggle_full_screen();
2700 case SDLK_s: // S: Step to next frame
2701 step_to_next_frame();
2705 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2709 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2713 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2716 toggle_audio_display();
2719 seek_chapter(cur_stream, 1);
2722 seek_chapter(cur_stream, -1);
2737 if (seek_by_bytes) {
2738 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) {
2739 pos = cur_stream->video_current_pos;
2740 } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) {
2741 pos = cur_stream->audio_pkt.pos;
2743 pos = avio_tell(cur_stream->ic->pb);
2744 if (cur_stream->ic->bit_rate)
2745 incr *= cur_stream->ic->bit_rate / 8.0;
2749 stream_seek(cur_stream, pos, incr, 1);
2751 pos = get_master_clock(cur_stream);
2753 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2761 case SDL_MOUSEBUTTONDOWN:
2762 if (exit_on_mousedown) {
2766 case SDL_MOUSEMOTION:
2767 if (event.type == SDL_MOUSEBUTTONDOWN) {
2770 if (event.motion.state != SDL_PRESSED)
2775 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
2776 uint64_t size = avio_size(cur_stream->ic->pb);
2777 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2781 int tns, thh, tmm, tss;
2782 tns = cur_stream->ic->duration / 1000000LL;
2784 tmm = (tns % 3600) / 60;
2786 frac = x / cur_stream->width;
2789 mm = (ns % 3600) / 60;
2791 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2792 hh, mm, ss, thh, tmm, tss);
2793 ts = frac * cur_stream->ic->duration;
2794 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2795 ts += cur_stream->ic->start_time;
2796 stream_seek(cur_stream, ts, 0, 0);
2800 case SDL_VIDEORESIZE:
2802 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2803 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2804 screen_width = cur_stream->width = event.resize.w;
2805 screen_height = cur_stream->height = event.resize.h;
2812 case FF_ALLOC_EVENT:
2813 video_open(event.user.data1);
2814 alloc_picture(event.user.data1);
2816 case FF_REFRESH_EVENT:
2817 video_refresh_timer(event.user.data1);
2818 cur_stream->refresh = 0;
2826 static int opt_frame_size(void *optctx, const char *opt, const char *arg)
2828 av_log(NULL, AV_LOG_ERROR,
2829 "Option '%s' has been removed, use private format options instead\n", opt);
2830 return AVERROR(EINVAL);
2833 static int opt_width(void *optctx, const char *opt, const char *arg)
2835 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2839 static int opt_height(void *optctx, const char *opt, const char *arg)
2841 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2845 static int opt_format(void *optctx, const char *opt, const char *arg)
2847 file_iformat = av_find_input_format(arg);
2848 if (!file_iformat) {
2849 fprintf(stderr, "Unknown input format: %s\n", arg);
2850 return AVERROR(EINVAL);
2855 static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg)
2857 av_log(NULL, AV_LOG_ERROR,
2858 "Option '%s' has been removed, use private format options instead\n", opt);
2859 return AVERROR(EINVAL);
2862 static int opt_sync(void *optctx, const char *opt, const char *arg)
2864 if (!strcmp(arg, "audio"))
2865 av_sync_type = AV_SYNC_AUDIO_MASTER;
2866 else if (!strcmp(arg, "video"))
2867 av_sync_type = AV_SYNC_VIDEO_MASTER;
2868 else if (!strcmp(arg, "ext"))
2869 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2871 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2877 static int opt_seek(void *optctx, const char *opt, const char *arg)
2879 start_time = parse_time_or_die(opt, arg, 1);
2883 static int opt_duration(void *optctx, const char *opt, const char *arg)
2885 duration = parse_time_or_die(opt, arg, 1);
2889 static const OptionDef options[] = {
2890 #include "cmdutils_common_opts.h"
2891 { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" },
2892 { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" },
2893 { "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
2894 { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" },
2895 { "an", OPT_BOOL, { &audio_disable }, "disable audio" },
2896 { "vn", OPT_BOOL, { &video_disable }, "disable video" },
2897 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
2898 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
2899 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
2900 { "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" },
2901 { "t", HAS_ARG, { .func_arg = opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
2902 { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
2903 { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" },
2904 { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" },
2905 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" },
2906 { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" },
2907 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { &workaround_bugs }, "workaround bugs", "" },
2908 { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" },
2909 { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" },
2910 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2911 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_loop_filter }, "", "" },
2912 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_frame }, "", "" },
2913 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_idct }, "", "" },
2914 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { &idct }, "set idct algo", "algo" },
2915 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { &error_concealment }, "set error concealment options", "bit_mask" },
2916 { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
2917 { "noautoexit", OPT_BOOL | OPT_EXPERT, { &noautoexit }, "Do not exit at the end of playback", "" },
2918 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" },
2919 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" },
2920 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" },
2921 { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" },
2922 { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" },
2923 { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" },
2925 { "vf", OPT_STRING | HAS_ARG, { &vfilters }, "video filters", "filter list" },
2927 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" },
2928 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { opt_default }, "generic catch all option", "" },
2929 { "i", 0, { NULL }, "avconv compatibility dummy option", ""},
2930 { "autorotate", OPT_BOOL, { &autorotate }, "automatically rotate video", "" },
2934 static void show_usage(void)
2936 printf("Simple media player\n");
2937 printf("usage: %s [options] input_file\n", program_name);
2941 void show_help_default(const char *opt, const char *arg)
2943 av_log_set_callback(log_callback_help);
2945 show_help_options(options, "Main options:", 0, OPT_EXPERT, 0);
2946 show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0);
2948 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
2949 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
2950 #if !CONFIG_AVFILTER
2951 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
2953 printf("\nWhile playing:\n"
2955 "f toggle full screen\n"
2957 "a cycle audio channel\n"
2958 "v cycle video channel\n"
2959 "t cycle subtitle channel\n"
2960 "w show audio waves\n"
2961 "s activate frame-step mode\n"
2962 "left/right seek backward/forward 10 seconds\n"
2963 "down/up seek backward/forward 1 minute\n"
2964 "mouse click seek to percentage in file corresponding to fraction of width\n"
2968 static void opt_input_file(void *optctx, const char *filename)
2970 if (input_filename) {
2971 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
2972 filename, input_filename);
2975 if (!strcmp(filename, "-"))
2977 input_filename = filename;
2980 /* Called from the main */
2981 int main(int argc, char **argv)
2985 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2986 parse_loglevel(argc, argv, options);
2988 /* register all codecs, demux and protocols */
2989 avcodec_register_all();
2991 avdevice_register_all();
2994 avfilter_register_all();
2997 avformat_network_init();
3003 parse_options(NULL, argc, argv, options, opt_input_file);
3005 if (!input_filename) {
3007 fprintf(stderr, "An input file must be specified\n");
3008 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3012 if (display_disable) {
3015 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3016 #if !defined(__MINGW32__) && !defined(__APPLE__)
3017 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3019 if (SDL_Init (flags)) {
3020 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3024 if (!display_disable) {
3025 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3026 fs_screen_width = vi->current_w;
3027 fs_screen_height = vi->current_h;
3030 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3031 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3032 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3034 av_init_packet(&flush_pkt);
3035 flush_pkt.data = (uint8_t *)&flush_pkt;
3037 cur_stream = stream_open(input_filename, file_iformat);