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 PlayerState {
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;
226 SpecifierOpt *codec_names;
230 /* options specified by the user */
231 static AVInputFormat *file_iformat;
232 static const char *input_filename;
233 static const char *window_title;
234 static int fs_screen_width;
235 static int fs_screen_height;
236 static int screen_width = 0;
237 static int screen_height = 0;
238 static int audio_disable;
239 static int video_disable;
240 static int wanted_stream[AVMEDIA_TYPE_NB] = {
241 [AVMEDIA_TYPE_AUDIO] = -1,
242 [AVMEDIA_TYPE_VIDEO] = -1,
243 [AVMEDIA_TYPE_SUBTITLE] = -1,
245 static int seek_by_bytes = -1;
246 static int display_disable;
247 static int show_status = 1;
248 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
249 static int64_t start_time = AV_NOPTS_VALUE;
250 static int64_t duration = AV_NOPTS_VALUE;
252 static int workaround_bugs = 1;
254 static int genpts = 0;
255 static int idct = FF_IDCT_AUTO;
256 static enum AVDiscard skip_frame = AVDISCARD_DEFAULT;
257 static enum AVDiscard skip_idct = AVDISCARD_DEFAULT;
258 static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT;
259 static int error_concealment = 3;
260 static int decoder_reorder_pts = -1;
261 static int noautoexit;
262 static int exit_on_keydown;
263 static int exit_on_mousedown;
265 static int framedrop = 1;
266 static int infinite_buffer = 0;
268 static int rdftspeed = 20;
270 static char *vfilters = NULL;
272 static int autorotate = 1;
274 /* current context */
275 static int is_full_screen;
276 static PlayerState player_state;
277 static PlayerState *player = &player_state;
278 static int64_t audio_callback_time;
280 static AVPacket flush_pkt;
282 #define FF_ALLOC_EVENT (SDL_USEREVENT)
283 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
284 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
286 static SDL_Surface *screen;
288 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
290 /* packet queue handling */
291 static void packet_queue_init(PacketQueue *q)
293 memset(q, 0, sizeof(PacketQueue));
294 q->mutex = SDL_CreateMutex();
295 q->cond = SDL_CreateCond();
296 packet_queue_put(q, &flush_pkt);
299 static void packet_queue_flush(PacketQueue *q)
301 AVPacketList *pkt, *pkt1;
303 SDL_LockMutex(q->mutex);
304 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
306 av_packet_unref(&pkt->pkt);
313 SDL_UnlockMutex(q->mutex);
316 static void packet_queue_end(PacketQueue *q)
318 packet_queue_flush(q);
319 SDL_DestroyMutex(q->mutex);
320 SDL_DestroyCond(q->cond);
323 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
327 pkt1 = av_malloc(sizeof(AVPacketList));
334 SDL_LockMutex(q->mutex);
340 q->last_pkt->next = pkt1;
343 q->size += pkt1->pkt.size + sizeof(*pkt1);
344 /* XXX: should duplicate packet data in DV case */
345 SDL_CondSignal(q->cond);
347 SDL_UnlockMutex(q->mutex);
351 static void packet_queue_abort(PacketQueue *q)
353 SDL_LockMutex(q->mutex);
355 q->abort_request = 1;
357 SDL_CondSignal(q->cond);
359 SDL_UnlockMutex(q->mutex);
362 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
363 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
368 SDL_LockMutex(q->mutex);
371 if (q->abort_request) {
378 q->first_pkt = pkt1->next;
382 q->size -= pkt1->pkt.size + sizeof(*pkt1);
391 SDL_CondWait(q->cond, q->mutex);
394 SDL_UnlockMutex(q->mutex);
398 static inline void fill_rectangle(SDL_Surface *screen,
399 int x, int y, int w, int h, int color)
406 SDL_FillRect(screen, &rect, color);
409 #define ALPHA_BLEND(a, oldp, newp, s)\
410 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
412 #define RGBA_IN(r, g, b, a, s)\
414 unsigned int v = ((const uint32_t *)(s))[0];\
415 a = (v >> 24) & 0xff;\
416 r = (v >> 16) & 0xff;\
417 g = (v >> 8) & 0xff;\
421 #define YUVA_IN(y, u, v, a, s, pal)\
423 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
424 a = (val >> 24) & 0xff;\
425 y = (val >> 16) & 0xff;\
426 u = (val >> 8) & 0xff;\
430 #define YUVA_OUT(d, y, u, v, a)\
432 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
438 static void blend_subrect(uint8_t *dst[4], uint16_t dst_linesize[4],
439 const AVSubtitleRect *rect, int imgw, int imgh)
441 int wrap, wrap3, width2, skip2;
442 int y, u, v, a, u1, v1, a1, w, h;
443 uint8_t *lum, *cb, *cr;
446 int dstx, dsty, dstw, dsth;
448 dstw = av_clip(rect->w, 0, imgw);
449 dsth = av_clip(rect->h, 0, imgh);
450 dstx = av_clip(rect->x, 0, imgw - dstw);
451 dsty = av_clip(rect->y, 0, imgh - dsth);
452 /* sdl has U and V inverted */
453 lum = dst[0] + dsty * dst_linesize[0];
454 cb = dst[2] + (dsty >> 1) * dst_linesize[2];
455 cr = dst[1] + (dsty >> 1) * dst_linesize[1];
457 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
459 wrap = dst_linesize[0];
460 wrap3 = rect->linesize[0];
462 pal = (const uint32_t *)rect->data[1]; /* Now in YCrCb! */
470 YUVA_IN(y, u, v, a, p, pal);
471 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
472 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
473 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
479 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
480 YUVA_IN(y, u, v, a, p, pal);
484 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
486 YUVA_IN(y, u, v, a, p + BPP, pal);
490 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
491 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
492 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
499 YUVA_IN(y, u, v, a, p, pal);
500 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
501 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
502 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
506 p += wrap3 - dstw * BPP;
507 lum += wrap - dstw - dstx;
508 cb += dst_linesize[2] - width2 - skip2;
509 cr += dst_linesize[1] - width2 - skip2;
511 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
517 YUVA_IN(y, u, v, a, p, pal);
521 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
524 YUVA_IN(y, u, v, a, p, pal);
528 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
529 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
530 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
536 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
537 YUVA_IN(y, u, v, a, p, pal);
541 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
543 YUVA_IN(y, u, v, a, p + BPP, pal);
547 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
551 YUVA_IN(y, u, v, a, p, pal);
555 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
557 YUVA_IN(y, u, v, a, p + BPP, pal);
561 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
563 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
564 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
568 p += -wrap3 + 2 * BPP;
572 YUVA_IN(y, u, v, a, p, pal);
576 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
579 YUVA_IN(y, u, v, a, p, pal);
583 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
584 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
585 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
591 p += wrap3 + (wrap3 - dstw * BPP);
592 lum += wrap + (wrap - dstw - dstx);
593 cb += dst_linesize[2] - width2 - skip2;
594 cr += dst_linesize[1] - width2 - skip2;
596 /* handle odd height */
603 YUVA_IN(y, u, v, a, p, pal);
604 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
605 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
606 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
612 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
613 YUVA_IN(y, u, v, a, p, pal);
617 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
619 YUVA_IN(y, u, v, a, p + BPP, pal);
623 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
624 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
625 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
632 YUVA_IN(y, u, v, a, p, pal);
633 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
634 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
635 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
640 static void free_subpicture(SubPicture *sp)
642 avsubtitle_free(&sp->sub);
645 static void video_image_display(PlayerState *is)
650 int width, height, x, y;
654 vp = &is->pictq[is->pictq_rindex];
660 aspect_ratio = av_q2d(vp->sar);
663 /* XXX: use variable in the frame */
664 if (is->video_st->sample_aspect_ratio.num)
665 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
666 else if (is->video_st->codec->sample_aspect_ratio.num)
667 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
671 if (aspect_ratio <= 0.0)
673 aspect_ratio *= (float)vp->width / (float)vp->height;
677 if (is->subpq_size > 0)
679 sp = &is->subpq[is->subpq_rindex];
681 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
683 SDL_LockYUVOverlay (vp->bmp);
685 for (i = 0; i < sp->sub.num_rects; i++)
686 blend_subrect(vp->bmp->pixels, vp->bmp->pitches,
687 sp->sub.rects[i], vp->bmp->w, vp->bmp->h);
689 SDL_UnlockYUVOverlay (vp->bmp);
695 /* XXX: we suppose the screen has a 1.0 pixel ratio */
697 width = ((int)rint(height * aspect_ratio)) & ~1;
698 if (width > is->width) {
700 height = ((int)rint(width / aspect_ratio)) & ~1;
702 x = (is->width - width) / 2;
703 y = (is->height - height) / 2;
704 is->no_background = 0;
705 rect.x = is->xleft + x;
706 rect.y = is->ytop + y;
709 SDL_DisplayYUVOverlay(vp->bmp, &rect);
713 /* get the current audio output buffer size, in samples. With SDL, we
714 cannot have a precise information */
715 static int audio_write_get_buf_size(PlayerState *is)
717 return is->audio_buf_size - is->audio_buf_index;
720 static inline int compute_mod(int a, int b)
729 static void video_audio_display(PlayerState *s)
731 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
732 int ch, channels, h, h2, bgcolor, fgcolor;
734 int rdft_bits, nb_freq;
736 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
738 nb_freq = 1 << (rdft_bits - 1);
740 /* compute display index : center on currently output samples */
741 channels = s->sdl_channels;
742 nb_display_channels = channels;
744 int data_used = s->show_audio == 1 ? s->width : (2 * nb_freq);
746 delay = audio_write_get_buf_size(s);
749 /* to be more precise, we take into account the time spent since
750 the last buffer computation */
751 if (audio_callback_time) {
752 time_diff = av_gettime_relative() - audio_callback_time;
753 delay -= (time_diff * s->sdl_sample_rate) / 1000000;
756 delay += 2 * data_used;
757 if (delay < data_used)
760 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
761 if (s->show_audio == 1) {
763 for (i = 0; i < 1000; i += channels) {
764 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
765 int a = s->sample_array[idx];
766 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
767 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
768 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
770 if (h < score && (b ^ c) < 0) {
777 s->last_i_start = i_start;
779 i_start = s->last_i_start;
782 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
783 if (s->show_audio == 1) {
784 fill_rectangle(screen,
785 s->xleft, s->ytop, s->width, s->height,
788 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
790 /* total height for one channel */
791 h = s->height / nb_display_channels;
792 /* graph height / 2 */
794 for (ch = 0; ch < nb_display_channels; ch++) {
796 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
797 for (x = 0; x < s->width; x++) {
798 y = (s->sample_array[i] * h2) >> 15;
805 fill_rectangle(screen,
806 s->xleft + x, ys, 1, y,
809 if (i >= SAMPLE_ARRAY_SIZE)
810 i -= SAMPLE_ARRAY_SIZE;
814 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
816 for (ch = 1; ch < nb_display_channels; ch++) {
817 y = s->ytop + ch * h;
818 fill_rectangle(screen,
819 s->xleft, y, s->width, 1,
822 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
824 nb_display_channels= FFMIN(nb_display_channels, 2);
825 if (rdft_bits != s->rdft_bits) {
826 av_rdft_end(s->rdft);
827 av_free(s->rdft_data);
828 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
829 s->rdft_bits = rdft_bits;
830 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
834 for (ch = 0; ch < nb_display_channels; ch++) {
835 data[ch] = s->rdft_data + 2 * nb_freq * ch;
837 for (x = 0; x < 2 * nb_freq; x++) {
838 double w = (x-nb_freq) * (1.0 / nb_freq);
839 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
841 if (i >= SAMPLE_ARRAY_SIZE)
842 i -= SAMPLE_ARRAY_SIZE;
844 av_rdft_calc(s->rdft, data[ch]);
846 /* Least efficient way to do this, we should of course
847 * directly access it but it is more than fast enough. */
848 for (y = 0; y < s->height; y++) {
849 double w = 1 / sqrt(nb_freq);
850 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]));
851 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
852 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
855 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
857 fill_rectangle(screen,
858 s->xpos, s->height-y, 1, 1,
862 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
864 if (s->xpos >= s->width)
869 static int video_open(PlayerState *is)
871 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
874 if (is_full_screen) flags |= SDL_FULLSCREEN;
875 else flags |= SDL_RESIZABLE;
877 if (is_full_screen && fs_screen_width) {
879 h = fs_screen_height;
880 } else if (!is_full_screen && screen_width) {
884 } else if (is->out_video_filter && is->out_video_filter->inputs[0]) {
885 w = is->out_video_filter->inputs[0]->w;
886 h = is->out_video_filter->inputs[0]->h;
888 } else if (is->video_st && is->video_st->codec->width) {
889 w = is->video_st->codec->width;
890 h = is->video_st->codec->height;
896 if (screen && is->width == screen->w && screen->w == w
897 && is->height== screen->h && screen->h == h)
900 #if defined(__APPLE__) && !SDL_VERSION_ATLEAST(1, 2, 14)
901 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X and older SDL */
902 screen = SDL_SetVideoMode(w, h, 24, flags);
904 screen = SDL_SetVideoMode(w, h, 0, flags);
907 fprintf(stderr, "SDL: could not set video mode - exiting\n");
911 window_title = input_filename;
912 SDL_WM_SetCaption(window_title, window_title);
914 is->width = screen->w;
915 is->height = screen->h;
920 /* display the current picture, if any */
921 static void video_display(PlayerState *is)
925 if (is->audio_st && is->show_audio)
926 video_audio_display(is);
927 else if (is->video_st)
928 video_image_display(is);
931 static int refresh_thread(void *opaque)
933 PlayerState *is= opaque;
934 while (!is->abort_request) {
936 event.type = FF_REFRESH_EVENT;
937 event.user.data1 = opaque;
940 SDL_PushEvent(&event);
942 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
947 /* get the current audio clock value */
948 static double get_audio_clock(PlayerState *is)
951 int hw_buf_size, bytes_per_sec;
952 pts = is->audio_clock;
953 hw_buf_size = audio_write_get_buf_size(is);
956 bytes_per_sec = is->sdl_sample_rate * is->sdl_channels *
957 av_get_bytes_per_sample(is->sdl_sample_fmt);
960 pts -= (double)hw_buf_size / bytes_per_sec;
964 /* get the current video clock value */
965 static double get_video_clock(PlayerState *is)
968 return is->video_current_pts;
970 return is->video_current_pts_drift + av_gettime_relative() / 1000000.0;
974 /* get the current external clock value */
975 static double get_external_clock(PlayerState *is)
978 ti = av_gettime_relative();
979 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
982 /* get the current master clock value */
983 static double get_master_clock(PlayerState *is)
987 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
989 val = get_video_clock(is);
991 val = get_audio_clock(is);
992 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
994 val = get_audio_clock(is);
996 val = get_video_clock(is);
998 val = get_external_clock(is);
1003 /* seek in the stream */
1004 static void stream_seek(PlayerState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1006 if (!is->seek_req) {
1009 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1011 is->seek_flags |= AVSEEK_FLAG_BYTE;
1016 /* pause or resume the video */
1017 static void stream_pause(PlayerState *is)
1020 is->frame_timer += av_gettime_relative() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1021 if (is->read_pause_return != AVERROR(ENOSYS)) {
1022 is->video_current_pts = is->video_current_pts_drift + av_gettime_relative() / 1000000.0;
1024 is->video_current_pts_drift = is->video_current_pts - av_gettime_relative() / 1000000.0;
1026 is->paused = !is->paused;
1029 static double compute_target_time(double frame_current_pts, PlayerState *is)
1031 double delay, sync_threshold, diff = 0;
1033 /* compute nominal delay */
1034 delay = frame_current_pts - is->frame_last_pts;
1035 if (delay <= 0 || delay >= 10.0) {
1036 /* if incorrect delay, use previous one */
1037 delay = is->frame_last_delay;
1039 is->frame_last_delay = delay;
1041 is->frame_last_pts = frame_current_pts;
1043 /* update delay to follow master synchronisation source */
1044 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1045 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1046 /* if video is slave, we try to correct big delays by
1047 duplicating or deleting a frame */
1048 diff = get_video_clock(is) - get_master_clock(is);
1050 /* skip or repeat frame. We take into account the
1051 delay to compute the threshold. I still don't know
1052 if it is the best guess */
1053 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1054 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1055 if (diff <= -sync_threshold)
1057 else if (diff >= sync_threshold)
1061 is->frame_timer += delay;
1063 av_log(NULL, AV_LOG_TRACE, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
1064 delay, frame_current_pts, -diff);
1066 return is->frame_timer;
1069 /* called to display each frame */
1070 static void video_refresh_timer(void *opaque)
1072 PlayerState *is = opaque;
1075 SubPicture *sp, *sp2;
1079 if (is->pictq_size == 0) {
1080 // nothing to do, no picture to display in the que
1082 double time = av_gettime_relative() / 1000000.0;
1084 /* dequeue the picture */
1085 vp = &is->pictq[is->pictq_rindex];
1087 if (time < vp->target_clock)
1089 /* update current video pts */
1090 is->video_current_pts = vp->pts;
1091 is->video_current_pts_drift = is->video_current_pts - time;
1092 is->video_current_pos = vp->pos;
1093 if (is->pictq_size > 1) {
1094 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1095 assert(nextvp->target_clock >= vp->target_clock);
1096 next_target= nextvp->target_clock;
1098 next_target = vp->target_clock + is->video_clock - vp->pts; // FIXME pass durations cleanly
1100 if (framedrop && time > next_target) {
1101 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1102 if (is->pictq_size > 1 || time > next_target + 0.5) {
1103 /* update queue size and signal for next picture */
1104 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1105 is->pictq_rindex = 0;
1107 SDL_LockMutex(is->pictq_mutex);
1109 SDL_CondSignal(is->pictq_cond);
1110 SDL_UnlockMutex(is->pictq_mutex);
1115 if (is->subtitle_st) {
1116 if (is->subtitle_stream_changed) {
1117 SDL_LockMutex(is->subpq_mutex);
1119 while (is->subpq_size) {
1120 free_subpicture(&is->subpq[is->subpq_rindex]);
1122 /* update queue size and signal for next picture */
1123 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1124 is->subpq_rindex = 0;
1128 is->subtitle_stream_changed = 0;
1130 SDL_CondSignal(is->subpq_cond);
1131 SDL_UnlockMutex(is->subpq_mutex);
1133 if (is->subpq_size > 0) {
1134 sp = &is->subpq[is->subpq_rindex];
1136 if (is->subpq_size > 1)
1137 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1141 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1142 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1144 free_subpicture(sp);
1146 /* update queue size and signal for next picture */
1147 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1148 is->subpq_rindex = 0;
1150 SDL_LockMutex(is->subpq_mutex);
1152 SDL_CondSignal(is->subpq_cond);
1153 SDL_UnlockMutex(is->subpq_mutex);
1159 /* display picture */
1160 if (!display_disable)
1163 /* update queue size and signal for next picture */
1164 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1165 is->pictq_rindex = 0;
1167 SDL_LockMutex(is->pictq_mutex);
1169 SDL_CondSignal(is->pictq_cond);
1170 SDL_UnlockMutex(is->pictq_mutex);
1172 } else if (is->audio_st) {
1173 /* draw the next audio frame */
1175 /* if only audio stream, then display the audio bars (better
1176 than nothing, just to test the implementation */
1178 /* display picture */
1179 if (!display_disable)
1183 static int64_t last_time;
1185 int aqsize, vqsize, sqsize;
1188 cur_time = av_gettime_relative();
1189 if (!last_time || (cur_time - last_time) >= 30000) {
1194 aqsize = is->audioq.size;
1196 vqsize = is->videoq.size;
1197 if (is->subtitle_st)
1198 sqsize = is->subtitleq.size;
1200 if (is->audio_st && is->video_st)
1201 av_diff = get_audio_clock(is) - get_video_clock(is);
1202 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1203 get_master_clock(is), av_diff, FFMAX(is->skip_frames - 1, 0), aqsize / 1024,
1204 vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
1206 last_time = cur_time;
1211 static void player_close(PlayerState *is)
1215 /* XXX: use a special url_shutdown call to abort parse cleanly */
1216 is->abort_request = 1;
1217 SDL_WaitThread(is->parse_tid, NULL);
1218 SDL_WaitThread(is->refresh_tid, NULL);
1220 /* free all pictures */
1221 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1224 SDL_FreeYUVOverlay(vp->bmp);
1228 SDL_DestroyMutex(is->pictq_mutex);
1229 SDL_DestroyCond(is->pictq_cond);
1230 SDL_DestroyMutex(is->subpq_mutex);
1231 SDL_DestroyCond(is->subpq_cond);
1232 #if !CONFIG_AVFILTER
1233 if (is->img_convert_ctx)
1234 sws_freeContext(is->img_convert_ctx);
1238 static void do_exit(void)
1241 player_close(player);
1245 avformat_network_deinit();
1249 av_log(NULL, AV_LOG_QUIET, "");
1253 /* allocate a picture (needs to do that in main thread to avoid
1254 potential locking problems */
1255 static void alloc_picture(void *opaque)
1257 PlayerState *is = opaque;
1260 vp = &is->pictq[is->pictq_windex];
1263 SDL_FreeYUVOverlay(vp->bmp);
1266 vp->width = is->out_video_filter->inputs[0]->w;
1267 vp->height = is->out_video_filter->inputs[0]->h;
1268 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1270 vp->width = is->video_st->codec->width;
1271 vp->height = is->video_st->codec->height;
1272 vp->pix_fmt = is->video_st->codec->pix_fmt;
1275 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1278 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1279 /* SDL allocates a buffer smaller than requested if the video
1280 * overlay hardware is unable to support the requested size. */
1281 fprintf(stderr, "Error: the video system does not support an image\n"
1282 "size of %dx%d pixels. Try using -vf \"scale=w:h\"\n"
1283 "to reduce the image size.\n", vp->width, vp->height );
1287 SDL_LockMutex(is->pictq_mutex);
1289 SDL_CondSignal(is->pictq_cond);
1290 SDL_UnlockMutex(is->pictq_mutex);
1293 /* The 'pts' parameter is the dts of the packet / pts of the frame and
1294 * guessed if not known. */
1295 static int queue_picture(PlayerState *is, AVFrame *src_frame, double pts, int64_t pos)
1298 #if !CONFIG_AVFILTER
1299 int dst_pix_fmt = AV_PIX_FMT_YUV420P;
1301 /* wait until we have space to put a new picture */
1302 SDL_LockMutex(is->pictq_mutex);
1304 if (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1305 is->skip_frames = FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0 - FRAME_SKIP_FACTOR));
1307 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1308 !is->videoq.abort_request) {
1309 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1311 SDL_UnlockMutex(is->pictq_mutex);
1313 if (is->videoq.abort_request)
1316 vp = &is->pictq[is->pictq_windex];
1318 vp->sar = src_frame->sample_aspect_ratio;
1320 /* alloc or resize hardware picture buffer */
1321 if (!vp->bmp || vp->reallocate ||
1323 vp->width != is->out_video_filter->inputs[0]->w ||
1324 vp->height != is->out_video_filter->inputs[0]->h) {
1326 vp->width != is->video_st->codec->width ||
1327 vp->height != is->video_st->codec->height) {
1334 /* the allocation must be done in the main thread to avoid
1336 event.type = FF_ALLOC_EVENT;
1337 event.user.data1 = is;
1338 SDL_PushEvent(&event);
1340 /* wait until the picture is allocated */
1341 SDL_LockMutex(is->pictq_mutex);
1342 while (!vp->allocated && !is->videoq.abort_request) {
1343 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1345 SDL_UnlockMutex(is->pictq_mutex);
1347 if (is->videoq.abort_request)
1351 /* if the frame is not skipped, then display it */
1356 /* get a pointer on the bitmap */
1357 SDL_LockYUVOverlay (vp->bmp);
1359 data[0] = vp->bmp->pixels[0];
1360 data[1] = vp->bmp->pixels[2];
1361 data[2] = vp->bmp->pixels[1];
1363 linesize[0] = vp->bmp->pitches[0];
1364 linesize[1] = vp->bmp->pitches[2];
1365 linesize[2] = vp->bmp->pitches[1];
1368 // FIXME use direct rendering
1369 av_image_copy(data, linesize, src_frame->data, src_frame->linesize,
1370 vp->pix_fmt, vp->width, vp->height);
1372 av_opt_get_int(sws_opts, "sws_flags", 0, &sws_flags);
1373 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1374 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1375 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1376 if (!is->img_convert_ctx) {
1377 fprintf(stderr, "Cannot initialize the conversion context\n");
1380 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1381 0, vp->height, data, linesize);
1383 /* update the bitmap content */
1384 SDL_UnlockYUVOverlay(vp->bmp);
1389 /* now we can update the picture count */
1390 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1391 is->pictq_windex = 0;
1392 SDL_LockMutex(is->pictq_mutex);
1393 vp->target_clock = compute_target_time(vp->pts, is);
1396 SDL_UnlockMutex(is->pictq_mutex);
1401 /* Compute the exact PTS for the picture if it is omitted in the stream.
1402 * The 'pts1' parameter is the dts of the packet / pts of the frame. */
1403 static int output_picture2(PlayerState *is, AVFrame *src_frame, double pts1, int64_t pos)
1405 double frame_delay, pts;
1411 /* update video clock with pts, if present */
1412 is->video_clock = pts;
1414 pts = is->video_clock;
1416 /* update video clock for next frame */
1417 frame_delay = av_q2d(is->video_st->codec->time_base);
1418 /* for MPEG2, the frame can be repeated, so we update the
1419 clock accordingly */
1420 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1421 is->video_clock += frame_delay;
1423 ret = queue_picture(is, src_frame, pts, pos);
1424 av_frame_unref(src_frame);
1428 static int get_video_frame(PlayerState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1432 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1435 if (pkt->data == flush_pkt.data) {
1436 avcodec_flush_buffers(is->video_st->codec);
1438 SDL_LockMutex(is->pictq_mutex);
1439 // Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1440 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1441 is->pictq[i].target_clock= 0;
1443 while (is->pictq_size && !is->videoq.abort_request) {
1444 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1446 is->video_current_pos = -1;
1447 SDL_UnlockMutex(is->pictq_mutex);
1449 init_pts_correction(&is->pts_ctx);
1450 is->frame_last_pts = AV_NOPTS_VALUE;
1451 is->frame_last_delay = 0;
1452 is->frame_timer = (double)av_gettime_relative() / 1000000.0;
1453 is->skip_frames = 1;
1454 is->skip_frames_index = 0;
1458 avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
1461 if (decoder_reorder_pts == -1) {
1462 *pts = guess_correct_pts(&is->pts_ctx, frame->pkt_pts, frame->pkt_dts);
1463 } else if (decoder_reorder_pts) {
1464 *pts = frame->pkt_pts;
1466 *pts = frame->pkt_dts;
1469 if (*pts == AV_NOPTS_VALUE) {
1472 if (is->video_st->sample_aspect_ratio.num) {
1473 frame->sample_aspect_ratio = is->video_st->sample_aspect_ratio;
1476 is->skip_frames_index += 1;
1477 if (is->skip_frames_index >= is->skip_frames) {
1478 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1481 av_frame_unref(frame);
1487 static int configure_video_filters(AVFilterGraph *graph, PlayerState *is, const char *vfilters)
1489 char sws_flags_str[128];
1490 char buffersrc_args[256];
1492 AVFilterContext *filt_src = NULL, *filt_out = NULL, *last_filter;
1493 AVCodecContext *codec = is->video_st->codec;
1495 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%"PRId64, sws_flags);
1496 graph->scale_sws_opts = av_strdup(sws_flags_str);
1498 snprintf(buffersrc_args, sizeof(buffersrc_args), "%d:%d:%d:%d:%d:%d:%d",
1499 codec->width, codec->height, codec->pix_fmt,
1500 is->video_st->time_base.num, is->video_st->time_base.den,
1501 codec->sample_aspect_ratio.num, codec->sample_aspect_ratio.den);
1504 if ((ret = avfilter_graph_create_filter(&filt_src,
1505 avfilter_get_by_name("buffer"),
1506 "src", buffersrc_args, NULL,
1509 if ((ret = avfilter_graph_create_filter(&filt_out,
1510 avfilter_get_by_name("buffersink"),
1511 "out", NULL, NULL, graph)) < 0)
1514 last_filter = filt_out;
1516 /* Note: this macro adds a filter before the lastly added filter, so the
1517 * processing order of the filters is in reverse */
1518 #define INSERT_FILT(name, arg) do { \
1519 AVFilterContext *filt_ctx; \
1521 ret = avfilter_graph_create_filter(&filt_ctx, \
1522 avfilter_get_by_name(name), \
1523 "avplay_" name, arg, NULL, graph); \
1527 ret = avfilter_link(filt_ctx, 0, last_filter, 0); \
1531 last_filter = filt_ctx; \
1534 INSERT_FILT("format", "yuv420p");
1537 uint8_t* displaymatrix = av_stream_get_side_data(is->video_st,
1538 AV_PKT_DATA_DISPLAYMATRIX, NULL);
1539 if (displaymatrix) {
1540 double rot = av_display_rotation_get((int32_t*) displaymatrix);
1541 if (rot < -135 || rot > 135) {
1542 INSERT_FILT("vflip", NULL);
1543 INSERT_FILT("hflip", NULL);
1544 } else if (rot < -45) {
1545 INSERT_FILT("transpose", "dir=clock");
1546 } else if (rot > 45) {
1547 INSERT_FILT("transpose", "dir=cclock");
1553 AVFilterInOut *outputs = avfilter_inout_alloc();
1554 AVFilterInOut *inputs = avfilter_inout_alloc();
1556 outputs->name = av_strdup("in");
1557 outputs->filter_ctx = filt_src;
1558 outputs->pad_idx = 0;
1559 outputs->next = NULL;
1561 inputs->name = av_strdup("out");
1562 inputs->filter_ctx = last_filter;
1563 inputs->pad_idx = 0;
1564 inputs->next = NULL;
1566 if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1569 if ((ret = avfilter_link(filt_src, 0, last_filter, 0)) < 0)
1573 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1576 is->in_video_filter = filt_src;
1577 is->out_video_filter = filt_out;
1582 #endif /* CONFIG_AVFILTER */
1584 static int video_thread(void *arg)
1586 AVPacket pkt = { 0 };
1587 PlayerState *is = arg;
1588 AVFrame *frame = av_frame_alloc();
1594 AVFilterGraph *graph = avfilter_graph_alloc();
1595 AVFilterContext *filt_out = NULL, *filt_in = NULL;
1596 int last_w = is->video_st->codec->width;
1597 int last_h = is->video_st->codec->height;
1599 av_frame_free(&frame);
1600 return AVERROR(ENOMEM);
1603 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1605 filt_in = is->in_video_filter;
1606 filt_out = is->out_video_filter;
1611 avfilter_graph_free(&graph);
1613 return AVERROR(ENOMEM);
1620 while (is->paused && !is->videoq.abort_request)
1623 av_packet_unref(&pkt);
1625 ret = get_video_frame(is, frame, &pts_int, &pkt);
1633 if ( last_w != is->video_st->codec->width
1634 || last_h != is->video_st->codec->height) {
1635 av_log(NULL, AV_LOG_TRACE, "Changing size %dx%d -> %dx%d\n", last_w, last_h,
1636 is->video_st->codec->width, is->video_st->codec->height);
1637 avfilter_graph_free(&graph);
1638 graph = avfilter_graph_alloc();
1639 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1641 filt_in = is->in_video_filter;
1642 filt_out = is->out_video_filter;
1643 last_w = is->video_st->codec->width;
1644 last_h = is->video_st->codec->height;
1647 frame->pts = pts_int;
1648 ret = av_buffersrc_add_frame(filt_in, frame);
1653 ret = av_buffersink_get_frame(filt_out, frame);
1659 pts_int = frame->pts;
1660 tb = filt_out->inputs[0]->time_base;
1661 if (av_cmp_q(tb, is->video_st->time_base)) {
1662 av_unused int64_t pts1 = pts_int;
1663 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1664 av_log(NULL, AV_LOG_TRACE, "video_thread(): "
1665 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1666 tb.num, tb.den, pts1,
1667 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1669 pts = pts_int * av_q2d(is->video_st->time_base);
1670 ret = output_picture2(is, frame, pts, 0);
1673 pts = pts_int * av_q2d(is->video_st->time_base);
1674 ret = output_picture2(is, frame, pts, pkt.pos);
1683 stream_pause(player);
1687 av_freep(&vfilters);
1688 avfilter_graph_free(&graph);
1690 av_packet_unref(&pkt);
1691 av_frame_free(&frame);
1695 static int subtitle_thread(void *arg)
1697 PlayerState *is = arg;
1699 AVPacket pkt1, *pkt = &pkt1;
1703 int r, g, b, y, u, v, a;
1706 while (is->paused && !is->subtitleq.abort_request) {
1709 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1712 if (pkt->data == flush_pkt.data) {
1713 avcodec_flush_buffers(is->subtitle_st->codec);
1716 SDL_LockMutex(is->subpq_mutex);
1717 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1718 !is->subtitleq.abort_request) {
1719 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1721 SDL_UnlockMutex(is->subpq_mutex);
1723 if (is->subtitleq.abort_request)
1726 sp = &is->subpq[is->subpq_windex];
1728 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1729 this packet, if any */
1731 if (pkt->pts != AV_NOPTS_VALUE)
1732 pts = av_q2d(is->subtitle_st->time_base) * pkt->pts;
1734 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1735 &got_subtitle, pkt);
1737 if (got_subtitle && sp->sub.format == 0) {
1740 for (i = 0; i < sp->sub.num_rects; i++)
1742 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1744 RGBA_IN(r, g, b, a, (uint32_t *)sp->sub.rects[i]->data[1] + j);
1745 y = RGB_TO_Y_CCIR(r, g, b);
1746 u = RGB_TO_U_CCIR(r, g, b, 0);
1747 v = RGB_TO_V_CCIR(r, g, b, 0);
1748 YUVA_OUT((uint32_t *)sp->sub.rects[i]->data[1] + j, y, u, v, a);
1752 /* now we can update the picture count */
1753 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1754 is->subpq_windex = 0;
1755 SDL_LockMutex(is->subpq_mutex);
1757 SDL_UnlockMutex(is->subpq_mutex);
1759 av_packet_unref(pkt);
1764 /* copy samples for viewing in editor window */
1765 static void update_sample_display(PlayerState *is, short *samples, int samples_size)
1769 size = samples_size / sizeof(short);
1771 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1774 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1776 is->sample_array_index += len;
1777 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1778 is->sample_array_index = 0;
1783 /* return the new audio buffer size (samples can be added or deleted
1784 to get better sync if video or external master clock) */
1785 static int synchronize_audio(PlayerState *is, short *samples,
1786 int samples_size1, double pts)
1788 int n, samples_size;
1791 n = is->sdl_channels * av_get_bytes_per_sample(is->sdl_sample_fmt);
1792 samples_size = samples_size1;
1794 /* if not master, then we try to remove or add samples to correct the clock */
1795 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1796 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1797 double diff, avg_diff;
1798 int wanted_size, min_size, max_size, nb_samples;
1800 ref_clock = get_master_clock(is);
1801 diff = get_audio_clock(is) - ref_clock;
1803 if (diff < AV_NOSYNC_THRESHOLD) {
1804 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1805 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1806 /* not enough measures to have a correct estimate */
1807 is->audio_diff_avg_count++;
1809 /* estimate the A-V difference */
1810 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1812 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1813 wanted_size = samples_size + ((int)(diff * is->sdl_sample_rate) * n);
1814 nb_samples = samples_size / n;
1816 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1817 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1818 if (wanted_size < min_size)
1819 wanted_size = min_size;
1820 else if (wanted_size > max_size)
1821 wanted_size = max_size;
1823 /* add or remove samples to correction the synchro */
1824 if (wanted_size < samples_size) {
1825 /* remove samples */
1826 samples_size = wanted_size;
1827 } else if (wanted_size > samples_size) {
1828 uint8_t *samples_end, *q;
1832 nb = (samples_size - wanted_size);
1833 samples_end = (uint8_t *)samples + samples_size - n;
1834 q = samples_end + n;
1836 memcpy(q, samples_end, n);
1840 samples_size = wanted_size;
1843 av_log(NULL, AV_LOG_TRACE, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1844 diff, avg_diff, samples_size - samples_size1,
1845 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1848 /* too big difference : may be initial PTS errors, so
1850 is->audio_diff_avg_count = 0;
1851 is->audio_diff_cum = 0;
1855 return samples_size;
1858 /* decode one audio frame and returns its uncompressed size */
1859 static int audio_decode_frame(PlayerState *is, double *pts_ptr)
1861 AVPacket *pkt_temp = &is->audio_pkt_temp;
1862 AVPacket *pkt = &is->audio_pkt;
1863 AVCodecContext *dec = is->audio_st->codec;
1864 int n, len1, data_size, got_frame;
1867 int flush_complete = 0;
1870 /* NOTE: the audio packet can contain several frames */
1871 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
1872 int resample_changed, audio_resample;
1875 if (!(is->frame = av_frame_alloc()))
1876 return AVERROR(ENOMEM);
1882 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
1884 /* if error, we skip the frame */
1889 pkt_temp->data += len1;
1890 pkt_temp->size -= len1;
1893 /* stop sending empty packets if the decoder is finished */
1894 if (!pkt_temp->data && (dec->codec->capabilities & AV_CODEC_CAP_DELAY))
1898 data_size = av_samples_get_buffer_size(NULL, dec->channels,
1899 is->frame->nb_samples,
1900 is->frame->format, 1);
1902 audio_resample = is->frame->format != is->sdl_sample_fmt ||
1903 is->frame->channel_layout != is->sdl_channel_layout ||
1904 is->frame->sample_rate != is->sdl_sample_rate;
1906 resample_changed = is->frame->format != is->resample_sample_fmt ||
1907 is->frame->channel_layout != is->resample_channel_layout ||
1908 is->frame->sample_rate != is->resample_sample_rate;
1910 if ((!is->avr && audio_resample) || resample_changed) {
1913 avresample_close(is->avr);
1914 else if (audio_resample) {
1915 is->avr = avresample_alloc_context();
1917 fprintf(stderr, "error allocating AVAudioResampleContext\n");
1921 if (audio_resample) {
1922 av_opt_set_int(is->avr, "in_channel_layout", is->frame->channel_layout, 0);
1923 av_opt_set_int(is->avr, "in_sample_fmt", is->frame->format, 0);
1924 av_opt_set_int(is->avr, "in_sample_rate", is->frame->sample_rate, 0);
1925 av_opt_set_int(is->avr, "out_channel_layout", is->sdl_channel_layout, 0);
1926 av_opt_set_int(is->avr, "out_sample_fmt", is->sdl_sample_fmt, 0);
1927 av_opt_set_int(is->avr, "out_sample_rate", is->sdl_sample_rate, 0);
1929 if ((ret = avresample_open(is->avr)) < 0) {
1930 fprintf(stderr, "error initializing libavresample\n");
1934 is->resample_sample_fmt = is->frame->format;
1935 is->resample_channel_layout = is->frame->channel_layout;
1936 is->resample_sample_rate = is->frame->sample_rate;
1939 if (audio_resample) {
1941 int out_samples, out_size, out_linesize;
1942 int osize = av_get_bytes_per_sample(is->sdl_sample_fmt);
1943 int nb_samples = is->frame->nb_samples;
1945 out_size = av_samples_get_buffer_size(&out_linesize,
1948 is->sdl_sample_fmt, 0);
1949 tmp_out = av_realloc(is->audio_buf1, out_size);
1951 return AVERROR(ENOMEM);
1952 is->audio_buf1 = tmp_out;
1954 out_samples = avresample_convert(is->avr,
1956 out_linesize, nb_samples,
1958 is->frame->linesize[0],
1959 is->frame->nb_samples);
1960 if (out_samples < 0) {
1961 fprintf(stderr, "avresample_convert() failed\n");
1964 is->audio_buf = is->audio_buf1;
1965 data_size = out_samples * osize * is->sdl_channels;
1967 is->audio_buf = is->frame->data[0];
1970 /* if no pts, then compute it */
1971 pts = is->audio_clock;
1973 n = is->sdl_channels * av_get_bytes_per_sample(is->sdl_sample_fmt);
1974 is->audio_clock += (double)data_size /
1975 (double)(n * is->sdl_sample_rate);
1978 static double last_clock;
1979 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1980 is->audio_clock - last_clock,
1981 is->audio_clock, pts);
1982 last_clock = is->audio_clock;
1988 /* free the current packet */
1990 av_packet_unref(pkt);
1991 memset(pkt_temp, 0, sizeof(*pkt_temp));
1993 if (is->paused || is->audioq.abort_request) {
1997 /* read next packet */
1998 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
2001 if (pkt->data == flush_pkt.data) {
2002 avcodec_flush_buffers(dec);
2008 /* if update the audio clock with the pts */
2009 if (pkt->pts != AV_NOPTS_VALUE) {
2010 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2015 /* prepare a new audio buffer */
2016 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2018 PlayerState *is = opaque;
2019 int audio_size, len1;
2022 audio_callback_time = av_gettime_relative();
2025 if (is->audio_buf_index >= is->audio_buf_size) {
2026 audio_size = audio_decode_frame(is, &pts);
2027 if (audio_size < 0) {
2028 /* if error, just output silence */
2029 is->audio_buf = is->silence_buf;
2030 is->audio_buf_size = sizeof(is->silence_buf);
2033 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2034 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2036 is->audio_buf_size = audio_size;
2038 is->audio_buf_index = 0;
2040 len1 = is->audio_buf_size - is->audio_buf_index;
2043 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2046 is->audio_buf_index += len1;
2050 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type)
2052 const AVCodecDescriptor *desc;
2053 AVCodec *codec = avcodec_find_decoder_by_name(name);
2055 if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
2056 codec = avcodec_find_decoder(desc->id);
2058 av_log(NULL, AV_LOG_VERBOSE, "Matched decoder '%s' for codec '%s'.\n",
2059 codec->name, desc->name);
2063 av_log(NULL, AV_LOG_FATAL, "Unknown decoder '%s'\n", name);
2067 if (codec->type != type) {
2068 av_log(NULL, AV_LOG_FATAL, "Invalid decoder type '%s'\n", name);
2075 static AVCodec *choose_decoder(PlayerState *is, AVFormatContext *ic, AVStream *st)
2077 char *codec_name = NULL;
2080 for (i = 0; i < is->nb_codec_names; i++) {
2081 char *spec = is->codec_names[i].specifier;
2082 if ((ret = check_stream_specifier(ic, st, spec)) > 0)
2083 codec_name = is->codec_names[i].u.str;
2089 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type);
2090 st->codec->codec_id = codec->id;
2093 return avcodec_find_decoder(st->codec->codec_id);
2096 /* open a given stream. Return 0 if OK */
2097 static int stream_component_open(PlayerState *is, int stream_index)
2099 AVFormatContext *ic = is->ic;
2100 AVCodecContext *avctx;
2102 SDL_AudioSpec wanted_spec, spec;
2104 AVDictionaryEntry *t = NULL;
2107 if (stream_index < 0 || stream_index >= ic->nb_streams)
2109 avctx = ic->streams[stream_index]->codec;
2111 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], NULL);
2113 codec = choose_decoder(is, ic, ic->streams[stream_index]);
2114 avctx->workaround_bugs = workaround_bugs;
2115 avctx->idct_algo = idct;
2116 avctx->skip_frame = skip_frame;
2117 avctx->skip_idct = skip_idct;
2118 avctx->skip_loop_filter = skip_loop_filter;
2119 avctx->error_concealment = error_concealment;
2122 avctx->flags2 |= AV_CODEC_FLAG2_FAST;
2124 if (!av_dict_get(opts, "threads", NULL, 0))
2125 av_dict_set(&opts, "threads", "auto", 0);
2126 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO)
2127 av_dict_set(&opts, "refcounted_frames", "1", 0);
2129 (ret = avcodec_open2(avctx, codec, &opts)) < 0) {
2132 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2133 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2134 ret = AVERROR_OPTION_NOT_FOUND;
2138 /* prepare audio output */
2139 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2140 is->sdl_sample_rate = avctx->sample_rate;
2142 if (!avctx->channel_layout)
2143 avctx->channel_layout = av_get_default_channel_layout(avctx->channels);
2144 if (!avctx->channel_layout) {
2145 fprintf(stderr, "unable to guess channel layout\n");
2146 ret = AVERROR_INVALIDDATA;
2149 if (avctx->channels == 1)
2150 is->sdl_channel_layout = AV_CH_LAYOUT_MONO;
2152 is->sdl_channel_layout = AV_CH_LAYOUT_STEREO;
2153 is->sdl_channels = av_get_channel_layout_nb_channels(is->sdl_channel_layout);
2155 wanted_spec.format = AUDIO_S16SYS;
2156 wanted_spec.freq = is->sdl_sample_rate;
2157 wanted_spec.channels = is->sdl_channels;
2158 wanted_spec.silence = 0;
2159 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2160 wanted_spec.callback = sdl_audio_callback;
2161 wanted_spec.userdata = is;
2162 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2163 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2164 ret = AVERROR_UNKNOWN;
2167 is->audio_hw_buf_size = spec.size;
2168 is->sdl_sample_fmt = AV_SAMPLE_FMT_S16;
2169 is->resample_sample_fmt = is->sdl_sample_fmt;
2170 is->resample_channel_layout = avctx->channel_layout;
2171 is->resample_sample_rate = avctx->sample_rate;
2174 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2175 switch (avctx->codec_type) {
2176 case AVMEDIA_TYPE_AUDIO:
2177 is->audio_stream = stream_index;
2178 is->audio_st = ic->streams[stream_index];
2179 is->audio_buf_size = 0;
2180 is->audio_buf_index = 0;
2182 /* init averaging filter */
2183 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2184 is->audio_diff_avg_count = 0;
2185 /* since we do not have a precise anough audio fifo fullness,
2186 we correct audio sync only if larger than this threshold */
2187 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2189 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2190 packet_queue_init(&is->audioq);
2193 case AVMEDIA_TYPE_VIDEO:
2194 is->video_stream = stream_index;
2195 is->video_st = ic->streams[stream_index];
2197 packet_queue_init(&is->videoq);
2198 is->video_tid = SDL_CreateThread(video_thread, is);
2200 case AVMEDIA_TYPE_SUBTITLE:
2201 is->subtitle_stream = stream_index;
2202 is->subtitle_st = ic->streams[stream_index];
2203 packet_queue_init(&is->subtitleq);
2205 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2212 av_dict_free(&opts);
2217 static void stream_component_close(PlayerState *is, int stream_index)
2219 AVFormatContext *ic = is->ic;
2220 AVCodecContext *avctx;
2222 if (stream_index < 0 || stream_index >= ic->nb_streams)
2224 avctx = ic->streams[stream_index]->codec;
2226 switch (avctx->codec_type) {
2227 case AVMEDIA_TYPE_AUDIO:
2228 packet_queue_abort(&is->audioq);
2232 packet_queue_end(&is->audioq);
2233 av_packet_unref(&is->audio_pkt);
2235 avresample_free(&is->avr);
2236 av_freep(&is->audio_buf1);
2237 is->audio_buf = NULL;
2238 av_frame_free(&is->frame);
2241 av_rdft_end(is->rdft);
2242 av_freep(&is->rdft_data);
2247 case AVMEDIA_TYPE_VIDEO:
2248 packet_queue_abort(&is->videoq);
2250 /* note: we also signal this mutex to make sure we deblock the
2251 video thread in all cases */
2252 SDL_LockMutex(is->pictq_mutex);
2253 SDL_CondSignal(is->pictq_cond);
2254 SDL_UnlockMutex(is->pictq_mutex);
2256 SDL_WaitThread(is->video_tid, NULL);
2258 packet_queue_end(&is->videoq);
2260 case AVMEDIA_TYPE_SUBTITLE:
2261 packet_queue_abort(&is->subtitleq);
2263 /* note: we also signal this mutex to make sure we deblock the
2264 video thread in all cases */
2265 SDL_LockMutex(is->subpq_mutex);
2266 is->subtitle_stream_changed = 1;
2268 SDL_CondSignal(is->subpq_cond);
2269 SDL_UnlockMutex(is->subpq_mutex);
2271 SDL_WaitThread(is->subtitle_tid, NULL);
2273 packet_queue_end(&is->subtitleq);
2279 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2280 avcodec_close(avctx);
2281 switch (avctx->codec_type) {
2282 case AVMEDIA_TYPE_AUDIO:
2283 is->audio_st = NULL;
2284 is->audio_stream = -1;
2286 case AVMEDIA_TYPE_VIDEO:
2287 is->video_st = NULL;
2288 is->video_stream = -1;
2290 case AVMEDIA_TYPE_SUBTITLE:
2291 is->subtitle_st = NULL;
2292 is->subtitle_stream = -1;
2299 /* since we have only one decoding thread, we can use a global
2300 variable instead of a thread local variable */
2301 static PlayerState *global_video_state;
2303 static int decode_interrupt_cb(void *ctx)
2305 return global_video_state && global_video_state->abort_request;
2308 static void stream_close(PlayerState *is)
2310 /* disable interrupting */
2311 global_video_state = NULL;
2313 /* close each stream */
2314 if (is->audio_stream >= 0)
2315 stream_component_close(is, is->audio_stream);
2316 if (is->video_stream >= 0)
2317 stream_component_close(is, is->video_stream);
2318 if (is->subtitle_stream >= 0)
2319 stream_component_close(is, is->subtitle_stream);
2321 avformat_close_input(&is->ic);
2325 static int stream_setup(PlayerState *is)
2327 AVFormatContext *ic = NULL;
2329 int st_index[AVMEDIA_TYPE_NB];
2330 AVDictionaryEntry *t;
2331 AVDictionary **opts;
2332 int orig_nb_streams;
2334 memset(st_index, -1, sizeof(st_index));
2335 is->video_stream = -1;
2336 is->audio_stream = -1;
2337 is->subtitle_stream = -1;
2339 global_video_state = is;
2341 ic = avformat_alloc_context();
2343 av_log(NULL, AV_LOG_FATAL, "Could not allocate context.\n");
2344 ret = AVERROR(ENOMEM);
2347 ic->interrupt_callback.callback = decode_interrupt_cb;
2348 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2350 print_error(is->filename, err);
2355 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2356 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2357 ret = AVERROR_OPTION_NOT_FOUND;
2363 ic->flags |= AVFMT_FLAG_GENPTS;
2365 opts = setup_find_stream_info_opts(ic, codec_opts);
2366 orig_nb_streams = ic->nb_streams;
2368 for (i = 0; i < ic->nb_streams; i++)
2369 ic->streams[i]->codec->codec = choose_decoder(is, ic, ic->streams[i]);
2371 err = avformat_find_stream_info(ic, opts);
2373 for (i = 0; i < orig_nb_streams; i++)
2374 av_dict_free(&opts[i]);
2378 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2384 ic->pb->eof_reached = 0; // FIXME hack, avplay maybe should not use url_feof() to test for the end
2386 if (seek_by_bytes < 0)
2387 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2389 /* if seeking requested, we execute it */
2390 if (start_time != AV_NOPTS_VALUE) {
2393 timestamp = start_time;
2394 /* add the stream start time */
2395 if (ic->start_time != AV_NOPTS_VALUE)
2396 timestamp += ic->start_time;
2397 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2399 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2400 is->filename, (double)timestamp / AV_TIME_BASE);
2404 for (i = 0; i < ic->nb_streams; i++)
2405 ic->streams[i]->discard = AVDISCARD_ALL;
2407 st_index[AVMEDIA_TYPE_VIDEO] =
2408 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2409 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2411 st_index[AVMEDIA_TYPE_AUDIO] =
2412 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2413 wanted_stream[AVMEDIA_TYPE_AUDIO],
2414 st_index[AVMEDIA_TYPE_VIDEO],
2417 st_index[AVMEDIA_TYPE_SUBTITLE] =
2418 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2419 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2420 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2421 st_index[AVMEDIA_TYPE_AUDIO] :
2422 st_index[AVMEDIA_TYPE_VIDEO]),
2425 av_dump_format(ic, 0, is->filename, 0);
2428 /* open the streams */
2429 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2430 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2434 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2435 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2438 if (!display_disable)
2442 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2443 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2446 if (is->video_stream < 0 && is->audio_stream < 0) {
2447 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2458 /* this thread gets the stream from the disk or the network */
2459 static int decode_thread(void *arg)
2461 PlayerState *is = arg;
2462 AVPacket pkt1, *pkt = &pkt1;
2463 AVFormatContext *ic = is->ic;
2464 int pkt_in_play_range = 0;
2468 if (is->abort_request)
2470 if (is->paused != is->last_paused) {
2471 is->last_paused = is->paused;
2473 is->read_pause_return = av_read_pause(ic);
2477 #if CONFIG_RTSP_DEMUXER
2478 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2479 /* wait 10 ms to avoid trying to get another packet */
2486 int64_t seek_target = is->seek_pos;
2487 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2488 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2489 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2490 // of the seek_pos/seek_rel variables
2492 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2494 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2496 if (is->audio_stream >= 0) {
2497 packet_queue_flush(&is->audioq);
2498 packet_queue_put(&is->audioq, &flush_pkt);
2500 if (is->subtitle_stream >= 0) {
2501 packet_queue_flush(&is->subtitleq);
2502 packet_queue_put(&is->subtitleq, &flush_pkt);
2504 if (is->video_stream >= 0) {
2505 packet_queue_flush(&is->videoq);
2506 packet_queue_put(&is->videoq, &flush_pkt);
2513 /* if the queue are full, no need to read more */
2514 if (!infinite_buffer &&
2515 (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2516 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream < 0)
2517 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0)
2518 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0)))) {
2524 if (is->video_stream >= 0) {
2525 av_init_packet(pkt);
2528 pkt->stream_index = is->video_stream;
2529 packet_queue_put(&is->videoq, pkt);
2531 if (is->audio_stream >= 0 &&
2532 (is->audio_st->codec->codec->capabilities & AV_CODEC_CAP_DELAY)) {
2533 av_init_packet(pkt);
2536 pkt->stream_index = is->audio_stream;
2537 packet_queue_put(&is->audioq, pkt);
2540 if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) {
2541 if (loop != 1 && (!loop || --loop)) {
2542 stream_seek(player, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2543 } else if (!noautoexit) {
2550 ret = av_read_frame(ic, pkt);
2552 if (ret == AVERROR_EOF || (ic->pb && ic->pb->eof_reached))
2554 if (ic->pb && ic->pb->error)
2556 SDL_Delay(100); /* wait for user event */
2559 /* check if packet is in play range specified by user, then queue, otherwise discard */
2560 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2561 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2562 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2563 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2564 <= ((double)duration / 1000000);
2565 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2566 packet_queue_put(&is->audioq, pkt);
2567 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2568 packet_queue_put(&is->videoq, pkt);
2569 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2570 packet_queue_put(&is->subtitleq, pkt);
2572 av_packet_unref(pkt);
2575 /* wait until the end */
2576 while (!is->abort_request) {
2588 event.type = FF_QUIT_EVENT;
2589 event.user.data1 = is;
2590 SDL_PushEvent(&event);
2595 static int stream_open(PlayerState *is,
2596 const char *filename, AVInputFormat *iformat)
2600 av_strlcpy(is->filename, filename, sizeof(is->filename));
2601 is->iformat = iformat;
2605 if ((ret = stream_setup(is)) < 0) {
2609 /* start video display */
2610 is->pictq_mutex = SDL_CreateMutex();
2611 is->pictq_cond = SDL_CreateCond();
2613 is->subpq_mutex = SDL_CreateMutex();
2614 is->subpq_cond = SDL_CreateCond();
2616 is->av_sync_type = av_sync_type;
2617 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2618 if (!is->refresh_tid)
2620 is->parse_tid = SDL_CreateThread(decode_thread, is);
2626 static void stream_cycle_channel(PlayerState *is, int codec_type)
2628 AVFormatContext *ic = is->ic;
2629 int start_index, stream_index;
2632 if (codec_type == AVMEDIA_TYPE_VIDEO)
2633 start_index = is->video_stream;
2634 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2635 start_index = is->audio_stream;
2637 start_index = is->subtitle_stream;
2638 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2640 stream_index = start_index;
2642 if (++stream_index >= is->ic->nb_streams)
2644 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2651 if (stream_index == start_index)
2653 st = ic->streams[stream_index];
2654 if (st->codec->codec_type == codec_type) {
2655 /* check that parameters are OK */
2656 switch (codec_type) {
2657 case AVMEDIA_TYPE_AUDIO:
2658 if (st->codec->sample_rate != 0 &&
2659 st->codec->channels != 0)
2662 case AVMEDIA_TYPE_VIDEO:
2663 case AVMEDIA_TYPE_SUBTITLE:
2671 stream_component_close(is, start_index);
2672 stream_component_open(is, stream_index);
2676 static void toggle_full_screen(void)
2678 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2679 /* OS X needs to empty the picture_queue */
2681 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++)
2682 player->pictq[i].reallocate = 1;
2684 is_full_screen = !is_full_screen;
2688 static void toggle_pause(void)
2691 stream_pause(player);
2695 static void step_to_next_frame(void)
2698 /* if the stream is paused unpause it, then step */
2700 stream_pause(player);
2705 static void toggle_audio_display(void)
2708 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2709 player->show_audio = (player->show_audio + 1) % 3;
2710 fill_rectangle(screen,
2711 player->xleft, player->ytop, player->width, player->height,
2713 SDL_UpdateRect(screen, player->xleft, player->ytop, player->width, player->height);
2717 static void seek_chapter(PlayerState *is, int incr)
2719 int64_t pos = get_master_clock(is) * AV_TIME_BASE;
2722 if (!is->ic->nb_chapters)
2725 /* find the current chapter */
2726 for (i = 0; i < is->ic->nb_chapters; i++) {
2727 AVChapter *ch = is->ic->chapters[i];
2728 if (av_compare_ts(pos, AV_TIME_BASE_Q, ch->start, ch->time_base) < 0) {
2736 if (i >= is->ic->nb_chapters)
2739 av_log(NULL, AV_LOG_VERBOSE, "Seeking to chapter %d.\n", i);
2740 stream_seek(is, av_rescale_q(is->ic->chapters[i]->start, is->ic->chapters[i]->time_base,
2741 AV_TIME_BASE_Q), 0, 0);
2744 /* handle an event sent by the GUI */
2745 static void event_loop(void)
2748 double incr, pos, frac;
2752 SDL_WaitEvent(&event);
2753 switch (event.type) {
2755 if (exit_on_keydown) {
2759 switch (event.key.keysym.sym) {
2765 toggle_full_screen();
2771 case SDLK_s: // S: Step to next frame
2772 step_to_next_frame();
2776 stream_cycle_channel(player, AVMEDIA_TYPE_AUDIO);
2780 stream_cycle_channel(player, AVMEDIA_TYPE_VIDEO);
2784 stream_cycle_channel(player, AVMEDIA_TYPE_SUBTITLE);
2787 toggle_audio_display();
2790 seek_chapter(player, 1);
2793 seek_chapter(player, -1);
2808 if (seek_by_bytes) {
2809 if (player->video_stream >= 0 && player->video_current_pos >= 0) {
2810 pos = player->video_current_pos;
2811 } else if (player->audio_stream >= 0 && player->audio_pkt.pos >= 0) {
2812 pos = player->audio_pkt.pos;
2814 pos = avio_tell(player->ic->pb);
2815 if (player->ic->bit_rate)
2816 incr *= player->ic->bit_rate / 8.0;
2820 stream_seek(player, pos, incr, 1);
2822 pos = get_master_clock(player);
2824 stream_seek(player, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2832 case SDL_MOUSEBUTTONDOWN:
2833 if (exit_on_mousedown) {
2837 case SDL_MOUSEMOTION:
2838 if (event.type == SDL_MOUSEBUTTONDOWN) {
2841 if (event.motion.state != SDL_PRESSED)
2846 if (seek_by_bytes || player->ic->duration <= 0) {
2847 uint64_t size = avio_size(player->ic->pb);
2848 stream_seek(player, size*x/player->width, 0, 1);
2852 int tns, thh, tmm, tss;
2853 tns = player->ic->duration / 1000000LL;
2855 tmm = (tns % 3600) / 60;
2857 frac = x / player->width;
2860 mm = (ns % 3600) / 60;
2862 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2863 hh, mm, ss, thh, tmm, tss);
2864 ts = frac * player->ic->duration;
2865 if (player->ic->start_time != AV_NOPTS_VALUE)
2866 ts += player->ic->start_time;
2867 stream_seek(player, ts, 0, 0);
2871 case SDL_VIDEORESIZE:
2873 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2874 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2875 screen_width = player->width = event.resize.w;
2876 screen_height = player->height = event.resize.h;
2883 case FF_ALLOC_EVENT:
2884 video_open(event.user.data1);
2885 alloc_picture(event.user.data1);
2887 case FF_REFRESH_EVENT:
2888 video_refresh_timer(event.user.data1);
2889 player->refresh = 0;
2897 static int opt_frame_size(void *optctx, const char *opt, const char *arg)
2899 av_log(NULL, AV_LOG_ERROR,
2900 "Option '%s' has been removed, use private format options instead\n", opt);
2901 return AVERROR(EINVAL);
2904 static int opt_width(void *optctx, const char *opt, const char *arg)
2906 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2910 static int opt_height(void *optctx, const char *opt, const char *arg)
2912 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2916 static int opt_format(void *optctx, const char *opt, const char *arg)
2918 file_iformat = av_find_input_format(arg);
2919 if (!file_iformat) {
2920 fprintf(stderr, "Unknown input format: %s\n", arg);
2921 return AVERROR(EINVAL);
2926 static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg)
2928 av_log(NULL, AV_LOG_ERROR,
2929 "Option '%s' has been removed, use private format options instead\n", opt);
2930 return AVERROR(EINVAL);
2933 static int opt_sync(void *optctx, const char *opt, const char *arg)
2935 if (!strcmp(arg, "audio"))
2936 av_sync_type = AV_SYNC_AUDIO_MASTER;
2937 else if (!strcmp(arg, "video"))
2938 av_sync_type = AV_SYNC_VIDEO_MASTER;
2939 else if (!strcmp(arg, "ext"))
2940 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2942 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2948 static int opt_seek(void *optctx, const char *opt, const char *arg)
2950 start_time = parse_time_or_die(opt, arg, 1);
2954 static int opt_duration(void *optctx, const char *opt, const char *arg)
2956 duration = parse_time_or_die(opt, arg, 1);
2960 #define OFF(x) offsetof(PlayerState, x)
2961 static const OptionDef options[] = {
2962 #include "cmdutils_common_opts.h"
2963 { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" },
2964 { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" },
2965 { "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
2966 { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" },
2967 { "an", OPT_BOOL, { &audio_disable }, "disable audio" },
2968 { "vn", OPT_BOOL, { &video_disable }, "disable video" },
2969 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
2970 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
2971 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
2972 { "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" },
2973 { "t", HAS_ARG, { .func_arg = opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
2974 { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
2975 { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" },
2976 { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" },
2977 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" },
2978 { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" },
2979 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { &workaround_bugs }, "workaround bugs", "" },
2980 { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" },
2981 { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" },
2982 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2983 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_loop_filter }, "", "" },
2984 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_frame }, "", "" },
2985 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_idct }, "", "" },
2986 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { &idct }, "set idct algo", "algo" },
2987 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { &error_concealment }, "set error concealment options", "bit_mask" },
2988 { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
2989 { "noautoexit", OPT_BOOL | OPT_EXPERT, { &noautoexit }, "Do not exit at the end of playback", "" },
2990 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" },
2991 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" },
2992 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" },
2993 { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" },
2994 { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" },
2995 { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" },
2997 { "vf", OPT_STRING | HAS_ARG, { &vfilters }, "video filters", "filter list" },
2999 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" },
3000 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { opt_default }, "generic catch all option", "" },
3001 { "i", 0, { NULL }, "avconv compatibility dummy option", ""},
3002 { "autorotate", OPT_BOOL, { &autorotate }, "automatically rotate video", "" },
3003 { "c", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFF(codec_names) }, "codec name", "codec" },
3004 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFF(codec_names) }, "codec name", "codec" },
3009 static void show_usage(void)
3011 printf("Simple media player\n");
3012 printf("usage: %s [options] input_file\n", program_name);
3016 void show_help_default(const char *opt, const char *arg)
3018 av_log_set_callback(log_callback_help);
3020 show_help_options(options, "Main options:", 0, OPT_EXPERT, 0);
3021 show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0);
3023 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3024 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3025 #if !CONFIG_AVFILTER
3026 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3028 printf("\nWhile playing:\n"
3030 "f toggle full screen\n"
3032 "a cycle audio channel\n"
3033 "v cycle video channel\n"
3034 "t cycle subtitle channel\n"
3035 "w show audio waves\n"
3036 "s activate frame-step mode\n"
3037 "left/right seek backward/forward 10 seconds\n"
3038 "down/up seek backward/forward 1 minute\n"
3039 "mouse click seek to percentage in file corresponding to fraction of width\n"
3043 static void opt_input_file(void *optctx, const char *filename)
3045 if (input_filename) {
3046 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3047 filename, input_filename);
3050 if (!strcmp(filename, "-"))
3052 input_filename = filename;
3055 /* Called from the main */
3056 int main(int argc, char **argv)
3060 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3061 parse_loglevel(argc, argv, options);
3063 /* register all codecs, demux and protocols */
3064 avcodec_register_all();
3066 avdevice_register_all();
3069 avfilter_register_all();
3072 avformat_network_init();
3078 parse_options(player, argc, argv, options, opt_input_file);
3080 if (!input_filename) {
3082 fprintf(stderr, "An input file must be specified\n");
3083 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3087 if (display_disable) {
3090 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3091 #if !defined(__MINGW32__) && !defined(__APPLE__)
3092 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3094 if (SDL_Init (flags)) {
3095 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3099 if (!display_disable) {
3100 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3101 fs_screen_width = vi->current_w;
3102 fs_screen_height = vi->current_h;
3105 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3106 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3107 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3109 av_init_packet(&flush_pkt);
3110 flush_pkt.data = (uint8_t *)&flush_pkt;
3112 if (stream_open(player, input_filename, file_iformat) < 0) {
3113 fprintf(stderr, "Could not setup the player\n");
3114 stream_close(player);