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
26 #include "libavutil/avstring.h"
27 #include "libavutil/colorspace.h"
28 #include "libavutil/mathematics.h"
29 #include "libavutil/pixdesc.h"
30 #include "libavutil/imgutils.h"
31 #include "libavutil/dict.h"
32 #include "libavutil/parseutils.h"
33 #include "libavutil/samplefmt.h"
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/audioconvert.h"
38 #include "libavutil/opt.h"
39 #include "libavcodec/avfft.h"
42 # include "libavfilter/avfilter.h"
43 # include "libavfilter/avfiltergraph.h"
49 #include <SDL_thread.h>
52 #undef main /* We don't want SDL to override our main() */
58 const char program_name[] = "avplay";
59 const int program_birth_year = 2003;
61 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
62 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
65 /* SDL audio buffer size, in samples. Should be small to have precise
66 A/V sync as SDL does not have hardware buffer fullness info. */
67 #define SDL_AUDIO_BUFFER_SIZE 1024
69 /* no AV sync correction is done if below the AV sync threshold */
70 #define AV_SYNC_THRESHOLD 0.01
71 /* no AV correction is done if too big error */
72 #define AV_NOSYNC_THRESHOLD 10.0
74 #define FRAME_SKIP_FACTOR 0.05
76 /* maximum audio speed change to get correct sync */
77 #define SAMPLE_CORRECTION_PERCENT_MAX 10
79 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
80 #define AUDIO_DIFF_AVG_NB 20
82 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
83 #define SAMPLE_ARRAY_SIZE (2 * 65536)
85 static int sws_flags = SWS_BICUBIC;
87 typedef struct PacketQueue {
88 AVPacketList *first_pkt, *last_pkt;
96 #define VIDEO_PICTURE_QUEUE_SIZE 2
97 #define SUBPICTURE_QUEUE_SIZE 4
99 typedef struct VideoPicture {
100 double pts; ///< presentation time stamp for this picture
101 double target_clock; ///< av_gettime() time at which this should be displayed ideally
102 int64_t pos; ///< byte position in file
104 int width, height; /* source height & width */
107 enum PixelFormat pix_fmt;
110 AVFilterBufferRef *picref;
114 typedef struct SubPicture {
115 double pts; /* presentation time stamp for this picture */
120 AV_SYNC_AUDIO_MASTER, /* default choice */
121 AV_SYNC_VIDEO_MASTER,
122 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
125 typedef struct VideoState {
126 SDL_Thread *parse_tid;
127 SDL_Thread *video_tid;
128 SDL_Thread *refresh_tid;
129 AVInputFormat *iformat;
138 int read_pause_return;
144 double external_clock; /* external clock base */
145 int64_t external_clock_time;
148 double audio_diff_cum; /* used for AV difference average computation */
149 double audio_diff_avg_coef;
150 double audio_diff_threshold;
151 int audio_diff_avg_count;
154 int audio_hw_buf_size;
155 uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
158 unsigned int audio_buf_size; /* in bytes */
159 int audio_buf_index; /* in bytes */
160 AVPacket audio_pkt_temp;
162 enum AVSampleFormat audio_src_fmt;
163 AVAudioConvert *reformat_ctx;
166 int show_audio; /* if true, display audio samples */
167 int16_t sample_array[SAMPLE_ARRAY_SIZE];
168 int sample_array_index;
172 FFTSample *rdft_data;
175 SDL_Thread *subtitle_tid;
177 int subtitle_stream_changed;
178 AVStream *subtitle_st;
179 PacketQueue subtitleq;
180 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
181 int subpq_size, subpq_rindex, subpq_windex;
182 SDL_mutex *subpq_mutex;
183 SDL_cond *subpq_cond;
186 double frame_last_pts;
187 double frame_last_delay;
188 double video_clock; ///< pts of last decoded frame / predicted pts of next decoded frame
192 double video_current_pts; ///< current displayed pts (different from video_clock if frame fifos are used)
193 double video_current_pts_drift; ///< video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
194 int64_t video_current_pos; ///< current displayed file pos
195 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
196 int pictq_size, pictq_rindex, pictq_windex;
197 SDL_mutex *pictq_mutex;
198 SDL_cond *pictq_cond;
200 struct SwsContext *img_convert_ctx;
203 // QETimer *video_timer;
205 int width, height, xleft, ytop;
207 PtsCorrectionContext pts_ctx;
210 AVFilterContext *out_video_filter; ///< the last filter in the video chain
214 float skip_frames_index;
218 static void show_help(void);
220 /* options specified by the user */
221 static AVInputFormat *file_iformat;
222 static const char *input_filename;
223 static const char *window_title;
224 static int fs_screen_width;
225 static int fs_screen_height;
226 static int screen_width = 0;
227 static int screen_height = 0;
228 static int audio_disable;
229 static int video_disable;
230 static int wanted_stream[AVMEDIA_TYPE_NB] = {
231 [AVMEDIA_TYPE_AUDIO] = -1,
232 [AVMEDIA_TYPE_VIDEO] = -1,
233 [AVMEDIA_TYPE_SUBTITLE] = -1,
235 static int seek_by_bytes = -1;
236 static int display_disable;
237 static int show_status = 1;
238 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
239 static int64_t start_time = AV_NOPTS_VALUE;
240 static int64_t duration = AV_NOPTS_VALUE;
241 static int debug = 0;
242 static int debug_mv = 0;
244 static int workaround_bugs = 1;
246 static int genpts = 0;
247 static int lowres = 0;
248 static int idct = FF_IDCT_AUTO;
249 static enum AVDiscard skip_frame = AVDISCARD_DEFAULT;
250 static enum AVDiscard skip_idct = AVDISCARD_DEFAULT;
251 static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT;
252 static int error_concealment = 3;
253 static int decoder_reorder_pts = -1;
255 static int exit_on_keydown;
256 static int exit_on_mousedown;
258 static int framedrop = 1;
260 static int rdftspeed = 20;
262 static char *vfilters = NULL;
265 /* current context */
266 static int is_full_screen;
267 static VideoState *cur_stream;
268 static int64_t audio_callback_time;
270 static AVPacket flush_pkt;
272 #define FF_ALLOC_EVENT (SDL_USEREVENT)
273 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
274 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
276 static SDL_Surface *screen;
278 void exit_program(int ret)
283 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
285 /* packet queue handling */
286 static void packet_queue_init(PacketQueue *q)
288 memset(q, 0, sizeof(PacketQueue));
289 q->mutex = SDL_CreateMutex();
290 q->cond = SDL_CreateCond();
291 packet_queue_put(q, &flush_pkt);
294 static void packet_queue_flush(PacketQueue *q)
296 AVPacketList *pkt, *pkt1;
298 SDL_LockMutex(q->mutex);
299 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
301 av_free_packet(&pkt->pkt);
308 SDL_UnlockMutex(q->mutex);
311 static void packet_queue_end(PacketQueue *q)
313 packet_queue_flush(q);
314 SDL_DestroyMutex(q->mutex);
315 SDL_DestroyCond(q->cond);
318 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
322 /* duplicate the packet */
323 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
326 pkt1 = av_malloc(sizeof(AVPacketList));
333 SDL_LockMutex(q->mutex);
339 q->last_pkt->next = pkt1;
342 q->size += pkt1->pkt.size + sizeof(*pkt1);
343 /* XXX: should duplicate packet data in DV case */
344 SDL_CondSignal(q->cond);
346 SDL_UnlockMutex(q->mutex);
350 static void packet_queue_abort(PacketQueue *q)
352 SDL_LockMutex(q->mutex);
354 q->abort_request = 1;
356 SDL_CondSignal(q->cond);
358 SDL_UnlockMutex(q->mutex);
361 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
362 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
367 SDL_LockMutex(q->mutex);
370 if (q->abort_request) {
377 q->first_pkt = pkt1->next;
381 q->size -= pkt1->pkt.size + sizeof(*pkt1);
390 SDL_CondWait(q->cond, q->mutex);
393 SDL_UnlockMutex(q->mutex);
397 static inline void fill_rectangle(SDL_Surface *screen,
398 int x, int y, int w, int h, int color)
405 SDL_FillRect(screen, &rect, color);
408 #define ALPHA_BLEND(a, oldp, newp, s)\
409 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
411 #define RGBA_IN(r, g, b, a, s)\
413 unsigned int v = ((const uint32_t *)(s))[0];\
414 a = (v >> 24) & 0xff;\
415 r = (v >> 16) & 0xff;\
416 g = (v >> 8) & 0xff;\
420 #define YUVA_IN(y, u, v, a, s, pal)\
422 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
423 a = (val >> 24) & 0xff;\
424 y = (val >> 16) & 0xff;\
425 u = (val >> 8) & 0xff;\
429 #define YUVA_OUT(d, y, u, v, a)\
431 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
437 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
439 int wrap, wrap3, width2, skip2;
440 int y, u, v, a, u1, v1, a1, w, h;
441 uint8_t *lum, *cb, *cr;
444 int dstx, dsty, dstw, dsth;
446 dstw = av_clip(rect->w, 0, imgw);
447 dsth = av_clip(rect->h, 0, imgh);
448 dstx = av_clip(rect->x, 0, imgw - dstw);
449 dsty = av_clip(rect->y, 0, imgh - dsth);
450 lum = dst->data[0] + dsty * dst->linesize[0];
451 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
452 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
454 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
456 wrap = dst->linesize[0];
457 wrap3 = rect->pict.linesize[0];
458 p = rect->pict.data[0];
459 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
467 YUVA_IN(y, u, v, a, p, pal);
468 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
469 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
470 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
476 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
477 YUVA_IN(y, u, v, a, p, pal);
481 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
483 YUVA_IN(y, u, v, a, p + BPP, pal);
487 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
488 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
489 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
496 YUVA_IN(y, u, v, a, p, pal);
497 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
498 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
499 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
503 p += wrap3 - dstw * BPP;
504 lum += wrap - dstw - dstx;
505 cb += dst->linesize[1] - width2 - skip2;
506 cr += dst->linesize[2] - width2 - skip2;
508 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
514 YUVA_IN(y, u, v, a, p, pal);
518 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
521 YUVA_IN(y, u, v, a, p, pal);
525 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
526 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
527 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
533 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
534 YUVA_IN(y, u, v, a, p, pal);
538 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
540 YUVA_IN(y, u, v, a, p + BPP, pal);
544 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
548 YUVA_IN(y, u, v, a, p, pal);
552 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
554 YUVA_IN(y, u, v, a, p + BPP, pal);
558 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
560 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
561 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
565 p += -wrap3 + 2 * BPP;
569 YUVA_IN(y, u, v, a, p, pal);
573 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
576 YUVA_IN(y, u, v, a, p, pal);
580 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
581 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
582 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
588 p += wrap3 + (wrap3 - dstw * BPP);
589 lum += wrap + (wrap - dstw - dstx);
590 cb += dst->linesize[1] - width2 - skip2;
591 cr += dst->linesize[2] - width2 - skip2;
593 /* handle odd height */
600 YUVA_IN(y, u, v, a, p, pal);
601 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
602 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
603 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
609 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
610 YUVA_IN(y, u, v, a, p, pal);
614 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
616 YUVA_IN(y, u, v, a, p + BPP, pal);
620 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
621 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
622 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
629 YUVA_IN(y, u, v, a, p, pal);
630 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
631 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
632 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
637 static void free_subpicture(SubPicture *sp)
639 avsubtitle_free(&sp->sub);
642 static void video_image_display(VideoState *is)
648 int width, height, x, y;
652 vp = &is->pictq[is->pictq_rindex];
655 if (vp->picref->video->pixel_aspect.num == 0)
658 aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
661 /* XXX: use variable in the frame */
662 if (is->video_st->sample_aspect_ratio.num)
663 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
664 else if (is->video_st->codec->sample_aspect_ratio.num)
665 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
669 if (aspect_ratio <= 0.0)
671 aspect_ratio *= (float)vp->width / (float)vp->height;
675 if (is->subpq_size > 0)
677 sp = &is->subpq[is->subpq_rindex];
679 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
681 SDL_LockYUVOverlay (vp->bmp);
683 pict.data[0] = vp->bmp->pixels[0];
684 pict.data[1] = vp->bmp->pixels[2];
685 pict.data[2] = vp->bmp->pixels[1];
687 pict.linesize[0] = vp->bmp->pitches[0];
688 pict.linesize[1] = vp->bmp->pitches[2];
689 pict.linesize[2] = vp->bmp->pitches[1];
691 for (i = 0; i < sp->sub.num_rects; i++)
692 blend_subrect(&pict, sp->sub.rects[i],
693 vp->bmp->w, vp->bmp->h);
695 SDL_UnlockYUVOverlay (vp->bmp);
701 /* XXX: we suppose the screen has a 1.0 pixel ratio */
703 width = ((int)rint(height * aspect_ratio)) & ~1;
704 if (width > is->width) {
706 height = ((int)rint(width / aspect_ratio)) & ~1;
708 x = (is->width - width) / 2;
709 y = (is->height - height) / 2;
710 is->no_background = 0;
711 rect.x = is->xleft + x;
712 rect.y = is->ytop + y;
715 SDL_DisplayYUVOverlay(vp->bmp, &rect);
719 /* get the current audio output buffer size, in samples. With SDL, we
720 cannot have a precise information */
721 static int audio_write_get_buf_size(VideoState *is)
723 return is->audio_buf_size - is->audio_buf_index;
726 static inline int compute_mod(int a, int b)
735 static void video_audio_display(VideoState *s)
737 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
738 int ch, channels, h, h2, bgcolor, fgcolor;
740 int rdft_bits, nb_freq;
742 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
744 nb_freq = 1 << (rdft_bits - 1);
746 /* compute display index : center on currently output samples */
747 channels = s->audio_st->codec->channels;
748 nb_display_channels = channels;
750 int data_used = s->show_audio == 1 ? s->width : (2 * nb_freq);
752 delay = audio_write_get_buf_size(s);
755 /* to be more precise, we take into account the time spent since
756 the last buffer computation */
757 if (audio_callback_time) {
758 time_diff = av_gettime() - audio_callback_time;
759 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
762 delay += 2 * data_used;
763 if (delay < data_used)
766 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
767 if (s->show_audio == 1) {
769 for (i = 0; i < 1000; i += channels) {
770 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
771 int a = s->sample_array[idx];
772 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
773 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
774 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
776 if (h < score && (b ^ c) < 0) {
783 s->last_i_start = i_start;
785 i_start = s->last_i_start;
788 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
789 if (s->show_audio == 1) {
790 fill_rectangle(screen,
791 s->xleft, s->ytop, s->width, s->height,
794 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
796 /* total height for one channel */
797 h = s->height / nb_display_channels;
798 /* graph height / 2 */
800 for (ch = 0; ch < nb_display_channels; ch++) {
802 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
803 for (x = 0; x < s->width; x++) {
804 y = (s->sample_array[i] * h2) >> 15;
811 fill_rectangle(screen,
812 s->xleft + x, ys, 1, y,
815 if (i >= SAMPLE_ARRAY_SIZE)
816 i -= SAMPLE_ARRAY_SIZE;
820 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
822 for (ch = 1; ch < nb_display_channels; ch++) {
823 y = s->ytop + ch * h;
824 fill_rectangle(screen,
825 s->xleft, y, s->width, 1,
828 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
830 nb_display_channels= FFMIN(nb_display_channels, 2);
831 if (rdft_bits != s->rdft_bits) {
832 av_rdft_end(s->rdft);
833 av_free(s->rdft_data);
834 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
835 s->rdft_bits = rdft_bits;
836 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
840 for (ch = 0; ch < nb_display_channels; ch++) {
841 data[ch] = s->rdft_data + 2 * nb_freq * ch;
843 for (x = 0; x < 2 * nb_freq; x++) {
844 double w = (x-nb_freq) * (1.0 / nb_freq);
845 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
847 if (i >= SAMPLE_ARRAY_SIZE)
848 i -= SAMPLE_ARRAY_SIZE;
850 av_rdft_calc(s->rdft, data[ch]);
852 // least efficient way to do this, we should of course directly access it but its more than fast enough
853 for (y = 0; y < s->height; y++) {
854 double w = 1 / sqrt(nb_freq);
855 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]));
856 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
857 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
860 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
862 fill_rectangle(screen,
863 s->xpos, s->height-y, 1, 1,
867 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
869 if (s->xpos >= s->width)
874 static int video_open(VideoState *is)
876 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
879 if (is_full_screen) flags |= SDL_FULLSCREEN;
880 else flags |= SDL_RESIZABLE;
882 if (is_full_screen && fs_screen_width) {
884 h = fs_screen_height;
885 } else if (!is_full_screen && screen_width) {
889 } else if (is->out_video_filter && is->out_video_filter->inputs[0]) {
890 w = is->out_video_filter->inputs[0]->w;
891 h = is->out_video_filter->inputs[0]->h;
893 } else if (is->video_st && is->video_st->codec->width) {
894 w = is->video_st->codec->width;
895 h = is->video_st->codec->height;
901 if (screen && is->width == screen->w && screen->w == w
902 && is->height== screen->h && screen->h == h)
905 #if defined(__APPLE__) && !SDL_VERSION_ATLEAST(1, 2, 14)
906 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X and older SDL */
907 screen = SDL_SetVideoMode(w, h, 24, flags);
909 screen = SDL_SetVideoMode(w, h, 0, flags);
912 fprintf(stderr, "SDL: could not set video mode - exiting\n");
916 window_title = input_filename;
917 SDL_WM_SetCaption(window_title, window_title);
919 is->width = screen->w;
920 is->height = screen->h;
925 /* display the current picture, if any */
926 static void video_display(VideoState *is)
929 video_open(cur_stream);
930 if (is->audio_st && is->show_audio)
931 video_audio_display(is);
932 else if (is->video_st)
933 video_image_display(is);
936 static int refresh_thread(void *opaque)
938 VideoState *is= opaque;
939 while (!is->abort_request) {
941 event.type = FF_REFRESH_EVENT;
942 event.user.data1 = opaque;
945 SDL_PushEvent(&event);
947 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
952 /* get the current audio clock value */
953 static double get_audio_clock(VideoState *is)
956 int hw_buf_size, bytes_per_sec;
957 pts = is->audio_clock;
958 hw_buf_size = audio_write_get_buf_size(is);
961 bytes_per_sec = is->audio_st->codec->sample_rate *
962 2 * is->audio_st->codec->channels;
965 pts -= (double)hw_buf_size / bytes_per_sec;
969 /* get the current video clock value */
970 static double get_video_clock(VideoState *is)
973 return is->video_current_pts;
975 return is->video_current_pts_drift + av_gettime() / 1000000.0;
979 /* get the current external clock value */
980 static double get_external_clock(VideoState *is)
984 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
987 /* get the current master clock value */
988 static double get_master_clock(VideoState *is)
992 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
994 val = get_video_clock(is);
996 val = get_audio_clock(is);
997 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
999 val = get_audio_clock(is);
1001 val = get_video_clock(is);
1003 val = get_external_clock(is);
1008 /* seek in the stream */
1009 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1011 if (!is->seek_req) {
1014 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1016 is->seek_flags |= AVSEEK_FLAG_BYTE;
1021 /* pause or resume the video */
1022 static void stream_pause(VideoState *is)
1025 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1026 if (is->read_pause_return != AVERROR(ENOSYS)) {
1027 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1029 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1031 is->paused = !is->paused;
1034 static double compute_target_time(double frame_current_pts, VideoState *is)
1036 double delay, sync_threshold, diff;
1038 /* compute nominal delay */
1039 delay = frame_current_pts - is->frame_last_pts;
1040 if (delay <= 0 || delay >= 10.0) {
1041 /* if incorrect delay, use previous one */
1042 delay = is->frame_last_delay;
1044 is->frame_last_delay = delay;
1046 is->frame_last_pts = frame_current_pts;
1048 /* update delay to follow master synchronisation source */
1049 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1050 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1051 /* if video is slave, we try to correct big delays by
1052 duplicating or deleting a frame */
1053 diff = get_video_clock(is) - get_master_clock(is);
1055 /* skip or repeat frame. We take into account the
1056 delay to compute the threshold. I still don't know
1057 if it is the best guess */
1058 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1059 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1060 if (diff <= -sync_threshold)
1062 else if (diff >= sync_threshold)
1066 is->frame_timer += delay;
1068 av_dlog(NULL, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
1069 delay, frame_current_pts, -diff);
1071 return is->frame_timer;
1074 /* called to display each frame */
1075 static void video_refresh_timer(void *opaque)
1077 VideoState *is = opaque;
1080 SubPicture *sp, *sp2;
1084 if (is->pictq_size == 0) {
1085 // nothing to do, no picture to display in the que
1087 double time = av_gettime() / 1000000.0;
1089 /* dequeue the picture */
1090 vp = &is->pictq[is->pictq_rindex];
1092 if (time < vp->target_clock)
1094 /* update current video pts */
1095 is->video_current_pts = vp->pts;
1096 is->video_current_pts_drift = is->video_current_pts - time;
1097 is->video_current_pos = vp->pos;
1098 if (is->pictq_size > 1) {
1099 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1100 assert(nextvp->target_clock >= vp->target_clock);
1101 next_target= nextvp->target_clock;
1103 next_target = vp->target_clock + is->video_clock - vp->pts; // FIXME pass durations cleanly
1105 if (framedrop && time > next_target) {
1106 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1107 if (is->pictq_size > 1 || time > next_target + 0.5) {
1108 /* update queue size and signal for next picture */
1109 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1110 is->pictq_rindex = 0;
1112 SDL_LockMutex(is->pictq_mutex);
1114 SDL_CondSignal(is->pictq_cond);
1115 SDL_UnlockMutex(is->pictq_mutex);
1120 if (is->subtitle_st) {
1121 if (is->subtitle_stream_changed) {
1122 SDL_LockMutex(is->subpq_mutex);
1124 while (is->subpq_size) {
1125 free_subpicture(&is->subpq[is->subpq_rindex]);
1127 /* update queue size and signal for next picture */
1128 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1129 is->subpq_rindex = 0;
1133 is->subtitle_stream_changed = 0;
1135 SDL_CondSignal(is->subpq_cond);
1136 SDL_UnlockMutex(is->subpq_mutex);
1138 if (is->subpq_size > 0) {
1139 sp = &is->subpq[is->subpq_rindex];
1141 if (is->subpq_size > 1)
1142 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1146 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1147 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1149 free_subpicture(sp);
1151 /* update queue size and signal for next picture */
1152 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1153 is->subpq_rindex = 0;
1155 SDL_LockMutex(is->subpq_mutex);
1157 SDL_CondSignal(is->subpq_cond);
1158 SDL_UnlockMutex(is->subpq_mutex);
1164 /* display picture */
1165 if (!display_disable)
1168 /* update queue size and signal for next picture */
1169 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1170 is->pictq_rindex = 0;
1172 SDL_LockMutex(is->pictq_mutex);
1174 SDL_CondSignal(is->pictq_cond);
1175 SDL_UnlockMutex(is->pictq_mutex);
1177 } else if (is->audio_st) {
1178 /* draw the next audio frame */
1180 /* if only audio stream, then display the audio bars (better
1181 than nothing, just to test the implementation */
1183 /* display picture */
1184 if (!display_disable)
1188 static int64_t last_time;
1190 int aqsize, vqsize, sqsize;
1193 cur_time = av_gettime();
1194 if (!last_time || (cur_time - last_time) >= 30000) {
1199 aqsize = is->audioq.size;
1201 vqsize = is->videoq.size;
1202 if (is->subtitle_st)
1203 sqsize = is->subtitleq.size;
1205 if (is->audio_st && is->video_st)
1206 av_diff = get_audio_clock(is) - get_video_clock(is);
1207 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1208 get_master_clock(is), av_diff, FFMAX(is->skip_frames - 1, 0), aqsize / 1024,
1209 vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
1211 last_time = cur_time;
1216 static void stream_close(VideoState *is)
1220 /* XXX: use a special url_shutdown call to abort parse cleanly */
1221 is->abort_request = 1;
1222 SDL_WaitThread(is->parse_tid, NULL);
1223 SDL_WaitThread(is->refresh_tid, NULL);
1225 /* free all pictures */
1226 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1230 avfilter_unref_buffer(vp->picref);
1235 SDL_FreeYUVOverlay(vp->bmp);
1239 SDL_DestroyMutex(is->pictq_mutex);
1240 SDL_DestroyCond(is->pictq_cond);
1241 SDL_DestroyMutex(is->subpq_mutex);
1242 SDL_DestroyCond(is->subpq_cond);
1243 #if !CONFIG_AVFILTER
1244 if (is->img_convert_ctx)
1245 sws_freeContext(is->img_convert_ctx);
1250 static void do_exit(void)
1253 stream_close(cur_stream);
1260 avformat_network_deinit();
1264 av_log(NULL, AV_LOG_QUIET, "");
1268 /* allocate a picture (needs to do that in main thread to avoid
1269 potential locking problems */
1270 static void alloc_picture(void *opaque)
1272 VideoState *is = opaque;
1275 vp = &is->pictq[is->pictq_windex];
1278 SDL_FreeYUVOverlay(vp->bmp);
1282 avfilter_unref_buffer(vp->picref);
1285 vp->width = is->out_video_filter->inputs[0]->w;
1286 vp->height = is->out_video_filter->inputs[0]->h;
1287 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1289 vp->width = is->video_st->codec->width;
1290 vp->height = is->video_st->codec->height;
1291 vp->pix_fmt = is->video_st->codec->pix_fmt;
1294 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1297 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1298 /* SDL allocates a buffer smaller than requested if the video
1299 * overlay hardware is unable to support the requested size. */
1300 fprintf(stderr, "Error: the video system does not support an image\n"
1301 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1302 "to reduce the image size.\n", vp->width, vp->height );
1306 SDL_LockMutex(is->pictq_mutex);
1308 SDL_CondSignal(is->pictq_cond);
1309 SDL_UnlockMutex(is->pictq_mutex);
1314 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1316 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1322 int dst_pix_fmt = PIX_FMT_YUV420P;
1324 /* wait until we have space to put a new picture */
1325 SDL_LockMutex(is->pictq_mutex);
1327 if (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1328 is->skip_frames = FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0 - FRAME_SKIP_FACTOR));
1330 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1331 !is->videoq.abort_request) {
1332 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1334 SDL_UnlockMutex(is->pictq_mutex);
1336 if (is->videoq.abort_request)
1339 vp = &is->pictq[is->pictq_windex];
1341 /* alloc or resize hardware picture buffer */
1342 if (!vp->bmp || vp->reallocate ||
1344 vp->width != is->out_video_filter->inputs[0]->w ||
1345 vp->height != is->out_video_filter->inputs[0]->h) {
1347 vp->width != is->video_st->codec->width ||
1348 vp->height != is->video_st->codec->height) {
1355 /* the allocation must be done in the main thread to avoid
1357 event.type = FF_ALLOC_EVENT;
1358 event.user.data1 = is;
1359 SDL_PushEvent(&event);
1361 /* wait until the picture is allocated */
1362 SDL_LockMutex(is->pictq_mutex);
1363 while (!vp->allocated && !is->videoq.abort_request) {
1364 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1366 SDL_UnlockMutex(is->pictq_mutex);
1368 if (is->videoq.abort_request)
1372 /* if the frame is not skipped, then display it */
1374 AVPicture pict = { { 0 } };
1377 avfilter_unref_buffer(vp->picref);
1378 vp->picref = src_frame->opaque;
1381 /* get a pointer on the bitmap */
1382 SDL_LockYUVOverlay (vp->bmp);
1384 pict.data[0] = vp->bmp->pixels[0];
1385 pict.data[1] = vp->bmp->pixels[2];
1386 pict.data[2] = vp->bmp->pixels[1];
1388 pict.linesize[0] = vp->bmp->pitches[0];
1389 pict.linesize[1] = vp->bmp->pitches[2];
1390 pict.linesize[2] = vp->bmp->pitches[1];
1393 pict_src.data[0] = src_frame->data[0];
1394 pict_src.data[1] = src_frame->data[1];
1395 pict_src.data[2] = src_frame->data[2];
1397 pict_src.linesize[0] = src_frame->linesize[0];
1398 pict_src.linesize[1] = src_frame->linesize[1];
1399 pict_src.linesize[2] = src_frame->linesize[2];
1401 // FIXME use direct rendering
1402 av_picture_copy(&pict, &pict_src,
1403 vp->pix_fmt, vp->width, vp->height);
1405 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1406 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1407 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1408 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1409 if (is->img_convert_ctx == NULL) {
1410 fprintf(stderr, "Cannot initialize the conversion context\n");
1413 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1414 0, vp->height, pict.data, pict.linesize);
1416 /* update the bitmap content */
1417 SDL_UnlockYUVOverlay(vp->bmp);
1422 /* now we can update the picture count */
1423 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1424 is->pictq_windex = 0;
1425 SDL_LockMutex(is->pictq_mutex);
1426 vp->target_clock = compute_target_time(vp->pts, is);
1429 SDL_UnlockMutex(is->pictq_mutex);
1435 * compute the exact PTS for the picture if it is omitted in the stream
1436 * @param pts1 the dts of the pkt / pts of the frame
1438 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1440 double frame_delay, pts;
1445 /* update video clock with pts, if present */
1446 is->video_clock = pts;
1448 pts = is->video_clock;
1450 /* update video clock for next frame */
1451 frame_delay = av_q2d(is->video_st->codec->time_base);
1452 /* for MPEG2, the frame can be repeated, so we update the
1453 clock accordingly */
1454 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1455 is->video_clock += frame_delay;
1457 return queue_picture(is, src_frame, pts, pos);
1460 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1464 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1467 if (pkt->data == flush_pkt.data) {
1468 avcodec_flush_buffers(is->video_st->codec);
1470 SDL_LockMutex(is->pictq_mutex);
1471 // Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1472 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1473 is->pictq[i].target_clock= 0;
1475 while (is->pictq_size && !is->videoq.abort_request) {
1476 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1478 is->video_current_pos = -1;
1479 SDL_UnlockMutex(is->pictq_mutex);
1481 init_pts_correction(&is->pts_ctx);
1482 is->frame_last_pts = AV_NOPTS_VALUE;
1483 is->frame_last_delay = 0;
1484 is->frame_timer = (double)av_gettime() / 1000000.0;
1485 is->skip_frames = 1;
1486 is->skip_frames_index = 0;
1490 avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
1493 if (decoder_reorder_pts == -1) {
1494 *pts = guess_correct_pts(&is->pts_ctx, frame->pkt_pts, frame->pkt_dts);
1495 } else if (decoder_reorder_pts) {
1496 *pts = frame->pkt_pts;
1498 *pts = frame->pkt_dts;
1501 if (*pts == AV_NOPTS_VALUE) {
1505 is->skip_frames_index += 1;
1506 if (is->skip_frames_index >= is->skip_frames) {
1507 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1522 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1524 AVFilterContext *ctx = codec->opaque;
1525 AVFilterBufferRef *ref;
1526 int perms = AV_PERM_WRITE;
1527 int i, w, h, stride[AV_NUM_DATA_POINTERS];
1531 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1532 perms |= AV_PERM_NEG_LINESIZES;
1534 if (pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1535 if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1536 if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1537 if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1539 if (pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1543 avcodec_align_dimensions2(codec, &w, &h, stride);
1544 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1548 if (!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1551 pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1 + 1;
1552 ref->video->w = codec->width;
1553 ref->video->h = codec->height;
1554 for (i = 0; i < 4; i ++) {
1555 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1556 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1559 ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1561 pic->data[i] = ref->data[i];
1562 pic->linesize[i] = ref->linesize[i];
1565 pic->type = FF_BUFFER_TYPE_USER;
1566 pic->reordered_opaque = codec->reordered_opaque;
1567 pic->width = codec->width;
1568 pic->height = codec->height;
1569 pic->format = codec->pix_fmt;
1570 pic->sample_aspect_ratio = codec->sample_aspect_ratio;
1571 if (codec->pkt) pic->pkt_pts = codec->pkt->pts;
1572 else pic->pkt_pts = AV_NOPTS_VALUE;
1576 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1578 memset(pic->data, 0, sizeof(pic->data));
1579 avfilter_unref_buffer(pic->opaque);
1582 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1584 AVFilterBufferRef *ref = pic->opaque;
1586 if (pic->data[0] == NULL) {
1587 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1588 return codec->get_buffer(codec, pic);
1591 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1592 (codec->pix_fmt != ref->format)) {
1593 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1597 pic->reordered_opaque = codec->reordered_opaque;
1598 if (codec->pkt) pic->pkt_pts = codec->pkt->pts;
1599 else pic->pkt_pts = AV_NOPTS_VALUE;
1603 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1605 FilterPriv *priv = ctx->priv;
1606 AVCodecContext *codec;
1607 if (!opaque) return -1;
1610 codec = priv->is->video_st->codec;
1611 codec->opaque = ctx;
1612 if (codec->codec->capabilities & CODEC_CAP_DR1) {
1614 codec->get_buffer = input_get_buffer;
1615 codec->release_buffer = input_release_buffer;
1616 codec->reget_buffer = input_reget_buffer;
1617 codec->thread_safe_callbacks = 1;
1620 priv->frame = avcodec_alloc_frame();
1625 static void input_uninit(AVFilterContext *ctx)
1627 FilterPriv *priv = ctx->priv;
1628 av_free(priv->frame);
1631 static int input_request_frame(AVFilterLink *link)
1633 FilterPriv *priv = link->src->priv;
1634 AVFilterBufferRef *picref;
1639 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1640 av_free_packet(&pkt);
1644 if (priv->use_dr1) {
1645 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1647 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1648 av_image_copy(picref->data, picref->linesize,
1649 priv->frame->data, priv->frame->linesize,
1650 picref->format, link->w, link->h);
1652 av_free_packet(&pkt);
1654 avfilter_copy_frame_props(picref, priv->frame);
1657 avfilter_start_frame(link, picref);
1658 avfilter_draw_slice(link, 0, link->h, 1);
1659 avfilter_end_frame(link);
1664 static int input_query_formats(AVFilterContext *ctx)
1666 FilterPriv *priv = ctx->priv;
1667 enum PixelFormat pix_fmts[] = {
1668 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1671 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1675 static int input_config_props(AVFilterLink *link)
1677 FilterPriv *priv = link->src->priv;
1678 AVCodecContext *c = priv->is->video_st->codec;
1681 link->h = c->height;
1682 link->time_base = priv->is->video_st->time_base;
1687 static AVFilter input_filter =
1689 .name = "avplay_input",
1691 .priv_size = sizeof(FilterPriv),
1694 .uninit = input_uninit,
1696 .query_formats = input_query_formats,
1698 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1699 .outputs = (AVFilterPad[]) {{ .name = "default",
1700 .type = AVMEDIA_TYPE_VIDEO,
1701 .request_frame = input_request_frame,
1702 .config_props = input_config_props, },
1706 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1708 static const enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
1709 char sws_flags_str[128];
1711 SinkContext sink_ctx = { .pix_fmts = pix_fmts };
1712 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1713 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1714 graph->scale_sws_opts = av_strdup(sws_flags_str);
1716 if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1717 NULL, is, graph)) < 0)
1719 if ((ret = avfilter_graph_create_filter(&filt_out, &sink, "out",
1720 NULL, &sink_ctx, graph)) < 0)
1724 AVFilterInOut *outputs = avfilter_inout_alloc();
1725 AVFilterInOut *inputs = avfilter_inout_alloc();
1727 outputs->name = av_strdup("in");
1728 outputs->filter_ctx = filt_src;
1729 outputs->pad_idx = 0;
1730 outputs->next = NULL;
1732 inputs->name = av_strdup("out");
1733 inputs->filter_ctx = filt_out;
1734 inputs->pad_idx = 0;
1735 inputs->next = NULL;
1737 if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1740 if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1744 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1747 is->out_video_filter = filt_out;
1752 #endif /* CONFIG_AVFILTER */
1754 static int video_thread(void *arg)
1756 VideoState *is = arg;
1757 AVFrame *frame = avcodec_alloc_frame();
1763 AVFilterGraph *graph = avfilter_graph_alloc();
1764 AVFilterContext *filt_out = NULL;
1766 int last_w = is->video_st->codec->width;
1767 int last_h = is->video_st->codec->height;
1769 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1771 filt_out = is->out_video_filter;
1775 #if !CONFIG_AVFILTER
1778 AVFilterBufferRef *picref;
1781 while (is->paused && !is->videoq.abort_request)
1784 if ( last_w != is->video_st->codec->width
1785 || last_h != is->video_st->codec->height) {
1786 av_dlog(NULL, "Changing size %dx%d -> %dx%d\n", last_w, last_h,
1787 is->video_st->codec->width, is->video_st->codec->height);
1788 avfilter_graph_free(&graph);
1789 graph = avfilter_graph_alloc();
1790 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1792 filt_out = is->out_video_filter;
1793 last_w = is->video_st->codec->width;
1794 last_h = is->video_st->codec->height;
1796 ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1798 pts_int = picref->pts;
1800 frame->opaque = picref;
1803 if (ret >= 0 && av_cmp_q(tb, is->video_st->time_base)) {
1804 av_unused int64_t pts1 = pts_int;
1805 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1806 av_dlog(NULL, "video_thread(): "
1807 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1808 tb.num, tb.den, pts1,
1809 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1812 ret = get_video_frame(is, frame, &pts_int, &pkt);
1821 pts = pts_int * av_q2d(is->video_st->time_base);
1824 ret = output_picture2(is, frame, pts, pos);
1826 ret = output_picture2(is, frame, pts, pkt.pos);
1827 av_free_packet(&pkt);
1834 stream_pause(cur_stream);
1838 av_freep(&vfilters);
1839 avfilter_graph_free(&graph);
1845 static int subtitle_thread(void *arg)
1847 VideoState *is = arg;
1849 AVPacket pkt1, *pkt = &pkt1;
1853 int r, g, b, y, u, v, a;
1856 while (is->paused && !is->subtitleq.abort_request) {
1859 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1862 if (pkt->data == flush_pkt.data) {
1863 avcodec_flush_buffers(is->subtitle_st->codec);
1866 SDL_LockMutex(is->subpq_mutex);
1867 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1868 !is->subtitleq.abort_request) {
1869 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1871 SDL_UnlockMutex(is->subpq_mutex);
1873 if (is->subtitleq.abort_request)
1876 sp = &is->subpq[is->subpq_windex];
1878 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1879 this packet, if any */
1881 if (pkt->pts != AV_NOPTS_VALUE)
1882 pts = av_q2d(is->subtitle_st->time_base) * pkt->pts;
1884 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1885 &got_subtitle, pkt);
1887 if (got_subtitle && sp->sub.format == 0) {
1890 for (i = 0; i < sp->sub.num_rects; i++)
1892 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1894 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1895 y = RGB_TO_Y_CCIR(r, g, b);
1896 u = RGB_TO_U_CCIR(r, g, b, 0);
1897 v = RGB_TO_V_CCIR(r, g, b, 0);
1898 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1902 /* now we can update the picture count */
1903 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1904 is->subpq_windex = 0;
1905 SDL_LockMutex(is->subpq_mutex);
1907 SDL_UnlockMutex(is->subpq_mutex);
1909 av_free_packet(pkt);
1914 /* copy samples for viewing in editor window */
1915 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1919 size = samples_size / sizeof(short);
1921 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1924 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1926 is->sample_array_index += len;
1927 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1928 is->sample_array_index = 0;
1933 /* return the new audio buffer size (samples can be added or deleted
1934 to get better sync if video or external master clock) */
1935 static int synchronize_audio(VideoState *is, short *samples,
1936 int samples_size1, double pts)
1938 int n, samples_size;
1941 n = 2 * is->audio_st->codec->channels;
1942 samples_size = samples_size1;
1944 /* if not master, then we try to remove or add samples to correct the clock */
1945 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1946 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1947 double diff, avg_diff;
1948 int wanted_size, min_size, max_size, nb_samples;
1950 ref_clock = get_master_clock(is);
1951 diff = get_audio_clock(is) - ref_clock;
1953 if (diff < AV_NOSYNC_THRESHOLD) {
1954 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1955 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1956 /* not enough measures to have a correct estimate */
1957 is->audio_diff_avg_count++;
1959 /* estimate the A-V difference */
1960 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1962 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1963 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1964 nb_samples = samples_size / n;
1966 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1967 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1968 if (wanted_size < min_size)
1969 wanted_size = min_size;
1970 else if (wanted_size > max_size)
1971 wanted_size = max_size;
1973 /* add or remove samples to correction the synchro */
1974 if (wanted_size < samples_size) {
1975 /* remove samples */
1976 samples_size = wanted_size;
1977 } else if (wanted_size > samples_size) {
1978 uint8_t *samples_end, *q;
1982 nb = (samples_size - wanted_size);
1983 samples_end = (uint8_t *)samples + samples_size - n;
1984 q = samples_end + n;
1986 memcpy(q, samples_end, n);
1990 samples_size = wanted_size;
1993 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1994 diff, avg_diff, samples_size - samples_size1,
1995 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1998 /* too big difference : may be initial PTS errors, so
2000 is->audio_diff_avg_count = 0;
2001 is->audio_diff_cum = 0;
2005 return samples_size;
2008 /* decode one audio frame and returns its uncompressed size */
2009 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2011 AVPacket *pkt_temp = &is->audio_pkt_temp;
2012 AVPacket *pkt = &is->audio_pkt;
2013 AVCodecContext *dec = is->audio_st->codec;
2014 int n, len1, data_size, got_frame;
2017 int flush_complete = 0;
2020 /* NOTE: the audio packet can contain several frames */
2021 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
2023 if (!(is->frame = avcodec_alloc_frame()))
2024 return AVERROR(ENOMEM);
2026 avcodec_get_frame_defaults(is->frame);
2031 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
2033 /* if error, we skip the frame */
2038 pkt_temp->data += len1;
2039 pkt_temp->size -= len1;
2042 /* stop sending empty packets if the decoder is finished */
2043 if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
2047 data_size = av_samples_get_buffer_size(NULL, dec->channels,
2048 is->frame->nb_samples,
2049 dec->sample_fmt, 1);
2051 if (dec->sample_fmt != is->audio_src_fmt) {
2052 if (is->reformat_ctx)
2053 av_audio_convert_free(is->reformat_ctx);
2054 is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2055 dec->sample_fmt, 1, NULL, 0);
2056 if (!is->reformat_ctx) {
2057 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2058 av_get_sample_fmt_name(dec->sample_fmt),
2059 av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2062 is->audio_src_fmt= dec->sample_fmt;
2065 if (is->reformat_ctx) {
2066 const void *ibuf[6] = { is->frame->data[0] };
2068 int istride[6] = { av_get_bytes_per_sample(dec->sample_fmt) };
2069 int ostride[6] = { 2 };
2070 int len= data_size/istride[0];
2071 obuf[0] = av_realloc(is->audio_buf1, FFALIGN(len * ostride[0], 32));
2073 return AVERROR(ENOMEM);
2075 is->audio_buf1 = obuf[0];
2076 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len) < 0) {
2077 printf("av_audio_convert() failed\n");
2080 is->audio_buf = is->audio_buf1;
2081 /* FIXME: existing code assume that data_size equals framesize*channels*2
2082 remove this legacy cruft */
2083 data_size = len * 2;
2085 is->audio_buf = is->frame->data[0];
2088 /* if no pts, then compute it */
2089 pts = is->audio_clock;
2091 n = 2 * dec->channels;
2092 is->audio_clock += (double)data_size /
2093 (double)(n * dec->sample_rate);
2096 static double last_clock;
2097 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2098 is->audio_clock - last_clock,
2099 is->audio_clock, pts);
2100 last_clock = is->audio_clock;
2106 /* free the current packet */
2108 av_free_packet(pkt);
2109 memset(pkt_temp, 0, sizeof(*pkt_temp));
2111 if (is->paused || is->audioq.abort_request) {
2115 /* read next packet */
2116 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
2119 if (pkt->data == flush_pkt.data) {
2120 avcodec_flush_buffers(dec);
2126 /* if update the audio clock with the pts */
2127 if (pkt->pts != AV_NOPTS_VALUE) {
2128 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2133 /* prepare a new audio buffer */
2134 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2136 VideoState *is = opaque;
2137 int audio_size, len1;
2140 audio_callback_time = av_gettime();
2143 if (is->audio_buf_index >= is->audio_buf_size) {
2144 audio_size = audio_decode_frame(is, &pts);
2145 if (audio_size < 0) {
2146 /* if error, just output silence */
2147 is->audio_buf = is->silence_buf;
2148 is->audio_buf_size = sizeof(is->silence_buf);
2151 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2152 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2154 is->audio_buf_size = audio_size;
2156 is->audio_buf_index = 0;
2158 len1 = is->audio_buf_size - is->audio_buf_index;
2161 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2164 is->audio_buf_index += len1;
2168 /* open a given stream. Return 0 if OK */
2169 static int stream_component_open(VideoState *is, int stream_index)
2171 AVFormatContext *ic = is->ic;
2172 AVCodecContext *avctx;
2174 SDL_AudioSpec wanted_spec, spec;
2176 AVDictionaryEntry *t = NULL;
2178 if (stream_index < 0 || stream_index >= ic->nb_streams)
2180 avctx = ic->streams[stream_index]->codec;
2182 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index]);
2184 codec = avcodec_find_decoder(avctx->codec_id);
2185 avctx->debug_mv = debug_mv;
2186 avctx->debug = debug;
2187 avctx->workaround_bugs = workaround_bugs;
2188 avctx->lowres = lowres;
2189 avctx->idct_algo = idct;
2190 avctx->skip_frame = skip_frame;
2191 avctx->skip_idct = skip_idct;
2192 avctx->skip_loop_filter = skip_loop_filter;
2193 avctx->error_concealment = error_concealment;
2195 if (lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2196 if (fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2198 if (!av_dict_get(opts, "threads", NULL, 0))
2199 av_dict_set(&opts, "threads", "auto", 0);
2201 avcodec_open2(avctx, codec, &opts) < 0)
2203 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2204 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2205 return AVERROR_OPTION_NOT_FOUND;
2208 /* prepare audio output */
2209 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2210 wanted_spec.freq = avctx->sample_rate;
2211 wanted_spec.format = AUDIO_S16SYS;
2212 wanted_spec.channels = avctx->channels;
2213 wanted_spec.silence = 0;
2214 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2215 wanted_spec.callback = sdl_audio_callback;
2216 wanted_spec.userdata = is;
2217 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2218 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2221 is->audio_hw_buf_size = spec.size;
2222 is->audio_src_fmt = AV_SAMPLE_FMT_S16;
2225 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2226 switch (avctx->codec_type) {
2227 case AVMEDIA_TYPE_AUDIO:
2228 is->audio_stream = stream_index;
2229 is->audio_st = ic->streams[stream_index];
2230 is->audio_buf_size = 0;
2231 is->audio_buf_index = 0;
2233 /* init averaging filter */
2234 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2235 is->audio_diff_avg_count = 0;
2236 /* since we do not have a precise anough audio fifo fullness,
2237 we correct audio sync only if larger than this threshold */
2238 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2240 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2241 packet_queue_init(&is->audioq);
2244 case AVMEDIA_TYPE_VIDEO:
2245 is->video_stream = stream_index;
2246 is->video_st = ic->streams[stream_index];
2248 packet_queue_init(&is->videoq);
2249 is->video_tid = SDL_CreateThread(video_thread, is);
2251 case AVMEDIA_TYPE_SUBTITLE:
2252 is->subtitle_stream = stream_index;
2253 is->subtitle_st = ic->streams[stream_index];
2254 packet_queue_init(&is->subtitleq);
2256 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2264 static void stream_component_close(VideoState *is, int stream_index)
2266 AVFormatContext *ic = is->ic;
2267 AVCodecContext *avctx;
2269 if (stream_index < 0 || stream_index >= ic->nb_streams)
2271 avctx = ic->streams[stream_index]->codec;
2273 switch (avctx->codec_type) {
2274 case AVMEDIA_TYPE_AUDIO:
2275 packet_queue_abort(&is->audioq);
2279 packet_queue_end(&is->audioq);
2280 av_free_packet(&is->audio_pkt);
2281 if (is->reformat_ctx)
2282 av_audio_convert_free(is->reformat_ctx);
2283 is->reformat_ctx = NULL;
2284 av_freep(&is->audio_buf1);
2285 is->audio_buf = NULL;
2286 av_freep(&is->frame);
2289 av_rdft_end(is->rdft);
2290 av_freep(&is->rdft_data);
2295 case AVMEDIA_TYPE_VIDEO:
2296 packet_queue_abort(&is->videoq);
2298 /* note: we also signal this mutex to make sure we deblock the
2299 video thread in all cases */
2300 SDL_LockMutex(is->pictq_mutex);
2301 SDL_CondSignal(is->pictq_cond);
2302 SDL_UnlockMutex(is->pictq_mutex);
2304 SDL_WaitThread(is->video_tid, NULL);
2306 packet_queue_end(&is->videoq);
2308 case AVMEDIA_TYPE_SUBTITLE:
2309 packet_queue_abort(&is->subtitleq);
2311 /* note: we also signal this mutex to make sure we deblock the
2312 video thread in all cases */
2313 SDL_LockMutex(is->subpq_mutex);
2314 is->subtitle_stream_changed = 1;
2316 SDL_CondSignal(is->subpq_cond);
2317 SDL_UnlockMutex(is->subpq_mutex);
2319 SDL_WaitThread(is->subtitle_tid, NULL);
2321 packet_queue_end(&is->subtitleq);
2327 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2328 avcodec_close(avctx);
2329 switch (avctx->codec_type) {
2330 case AVMEDIA_TYPE_AUDIO:
2331 is->audio_st = NULL;
2332 is->audio_stream = -1;
2334 case AVMEDIA_TYPE_VIDEO:
2335 is->video_st = NULL;
2336 is->video_stream = -1;
2338 case AVMEDIA_TYPE_SUBTITLE:
2339 is->subtitle_st = NULL;
2340 is->subtitle_stream = -1;
2347 /* since we have only one decoding thread, we can use a global
2348 variable instead of a thread local variable */
2349 static VideoState *global_video_state;
2351 static int decode_interrupt_cb(void *ctx)
2353 return global_video_state && global_video_state->abort_request;
2356 /* this thread gets the stream from the disk or the network */
2357 static int decode_thread(void *arg)
2359 VideoState *is = arg;
2360 AVFormatContext *ic = NULL;
2362 int st_index[AVMEDIA_TYPE_NB];
2363 AVPacket pkt1, *pkt = &pkt1;
2365 int pkt_in_play_range = 0;
2366 AVDictionaryEntry *t;
2367 AVDictionary **opts;
2368 int orig_nb_streams;
2370 memset(st_index, -1, sizeof(st_index));
2371 is->video_stream = -1;
2372 is->audio_stream = -1;
2373 is->subtitle_stream = -1;
2375 global_video_state = is;
2377 ic = avformat_alloc_context();
2378 ic->interrupt_callback.callback = decode_interrupt_cb;
2379 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2381 print_error(is->filename, err);
2385 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2386 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2387 ret = AVERROR_OPTION_NOT_FOUND;
2393 ic->flags |= AVFMT_FLAG_GENPTS;
2395 opts = setup_find_stream_info_opts(ic, codec_opts);
2396 orig_nb_streams = ic->nb_streams;
2398 err = avformat_find_stream_info(ic, opts);
2400 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2404 for (i = 0; i < orig_nb_streams; i++)
2405 av_dict_free(&opts[i]);
2409 ic->pb->eof_reached = 0; // FIXME hack, avplay maybe should not use url_feof() to test for the end
2411 if (seek_by_bytes < 0)
2412 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2414 /* if seeking requested, we execute it */
2415 if (start_time != AV_NOPTS_VALUE) {
2418 timestamp = start_time;
2419 /* add the stream start time */
2420 if (ic->start_time != AV_NOPTS_VALUE)
2421 timestamp += ic->start_time;
2422 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2424 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2425 is->filename, (double)timestamp / AV_TIME_BASE);
2429 for (i = 0; i < ic->nb_streams; i++)
2430 ic->streams[i]->discard = AVDISCARD_ALL;
2432 st_index[AVMEDIA_TYPE_VIDEO] =
2433 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2434 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2436 st_index[AVMEDIA_TYPE_AUDIO] =
2437 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2438 wanted_stream[AVMEDIA_TYPE_AUDIO],
2439 st_index[AVMEDIA_TYPE_VIDEO],
2442 st_index[AVMEDIA_TYPE_SUBTITLE] =
2443 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2444 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2445 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2446 st_index[AVMEDIA_TYPE_AUDIO] :
2447 st_index[AVMEDIA_TYPE_VIDEO]),
2450 av_dump_format(ic, 0, is->filename, 0);
2453 /* open the streams */
2454 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2455 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2459 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2460 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2462 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2464 if (!display_disable)
2468 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2469 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2472 if (is->video_stream < 0 && is->audio_stream < 0) {
2473 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2479 if (is->abort_request)
2481 if (is->paused != is->last_paused) {
2482 is->last_paused = is->paused;
2484 is->read_pause_return = av_read_pause(ic);
2488 #if CONFIG_RTSP_DEMUXER
2489 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2490 /* wait 10 ms to avoid trying to get another packet */
2497 int64_t seek_target = is->seek_pos;
2498 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2499 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2500 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2501 // of the seek_pos/seek_rel variables
2503 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2505 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2507 if (is->audio_stream >= 0) {
2508 packet_queue_flush(&is->audioq);
2509 packet_queue_put(&is->audioq, &flush_pkt);
2511 if (is->subtitle_stream >= 0) {
2512 packet_queue_flush(&is->subtitleq);
2513 packet_queue_put(&is->subtitleq, &flush_pkt);
2515 if (is->video_stream >= 0) {
2516 packet_queue_flush(&is->videoq);
2517 packet_queue_put(&is->videoq, &flush_pkt);
2524 /* if the queue are full, no need to read more */
2525 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2526 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream < 0)
2527 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0)
2528 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0))) {
2534 if (is->video_stream >= 0) {
2535 av_init_packet(pkt);
2538 pkt->stream_index = is->video_stream;
2539 packet_queue_put(&is->videoq, pkt);
2541 if (is->audio_stream >= 0 &&
2542 is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
2543 av_init_packet(pkt);
2546 pkt->stream_index = is->audio_stream;
2547 packet_queue_put(&is->audioq, pkt);
2550 if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) {
2551 if (loop != 1 && (!loop || --loop)) {
2552 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2553 } else if (autoexit) {
2560 ret = av_read_frame(ic, pkt);
2562 if (ret == AVERROR_EOF || (ic->pb && ic->pb->eof_reached))
2564 if (ic->pb && ic->pb->error)
2566 SDL_Delay(100); /* wait for user event */
2569 /* check if packet is in play range specified by user, then queue, otherwise discard */
2570 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2571 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2572 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2573 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2574 <= ((double)duration / 1000000);
2575 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2576 packet_queue_put(&is->audioq, pkt);
2577 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2578 packet_queue_put(&is->videoq, pkt);
2579 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2580 packet_queue_put(&is->subtitleq, pkt);
2582 av_free_packet(pkt);
2585 /* wait until the end */
2586 while (!is->abort_request) {
2592 /* disable interrupting */
2593 global_video_state = NULL;
2595 /* close each stream */
2596 if (is->audio_stream >= 0)
2597 stream_component_close(is, is->audio_stream);
2598 if (is->video_stream >= 0)
2599 stream_component_close(is, is->video_stream);
2600 if (is->subtitle_stream >= 0)
2601 stream_component_close(is, is->subtitle_stream);
2603 avformat_close_input(&is->ic);
2609 event.type = FF_QUIT_EVENT;
2610 event.user.data1 = is;
2611 SDL_PushEvent(&event);
2616 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2620 is = av_mallocz(sizeof(VideoState));
2623 av_strlcpy(is->filename, filename, sizeof(is->filename));
2624 is->iformat = iformat;
2628 /* start video display */
2629 is->pictq_mutex = SDL_CreateMutex();
2630 is->pictq_cond = SDL_CreateCond();
2632 is->subpq_mutex = SDL_CreateMutex();
2633 is->subpq_cond = SDL_CreateCond();
2635 is->av_sync_type = av_sync_type;
2636 is->parse_tid = SDL_CreateThread(decode_thread, is);
2637 if (!is->parse_tid) {
2644 static void stream_cycle_channel(VideoState *is, int codec_type)
2646 AVFormatContext *ic = is->ic;
2647 int start_index, stream_index;
2650 if (codec_type == AVMEDIA_TYPE_VIDEO)
2651 start_index = is->video_stream;
2652 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2653 start_index = is->audio_stream;
2655 start_index = is->subtitle_stream;
2656 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2658 stream_index = start_index;
2660 if (++stream_index >= is->ic->nb_streams)
2662 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2669 if (stream_index == start_index)
2671 st = ic->streams[stream_index];
2672 if (st->codec->codec_type == codec_type) {
2673 /* check that parameters are OK */
2674 switch (codec_type) {
2675 case AVMEDIA_TYPE_AUDIO:
2676 if (st->codec->sample_rate != 0 &&
2677 st->codec->channels != 0)
2680 case AVMEDIA_TYPE_VIDEO:
2681 case AVMEDIA_TYPE_SUBTITLE:
2689 stream_component_close(is, start_index);
2690 stream_component_open(is, stream_index);
2694 static void toggle_full_screen(void)
2696 is_full_screen = !is_full_screen;
2697 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2698 /* OS X needs to empty the picture_queue */
2699 for (int i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
2700 cur_stream->pictq[i].reallocate = 1;
2703 video_open(cur_stream);
2706 static void toggle_pause(void)
2709 stream_pause(cur_stream);
2713 static void step_to_next_frame(void)
2716 /* if the stream is paused unpause it, then step */
2717 if (cur_stream->paused)
2718 stream_pause(cur_stream);
2723 static void toggle_audio_display(void)
2726 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2727 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2728 fill_rectangle(screen,
2729 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2731 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2735 /* handle an event sent by the GUI */
2736 static void event_loop(void)
2739 double incr, pos, frac;
2743 SDL_WaitEvent(&event);
2744 switch (event.type) {
2746 if (exit_on_keydown) {
2750 switch (event.key.keysym.sym) {
2756 toggle_full_screen();
2762 case SDLK_s: // S: Step to next frame
2763 step_to_next_frame();
2767 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2771 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2775 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2778 toggle_audio_display();
2793 if (seek_by_bytes) {
2794 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) {
2795 pos = cur_stream->video_current_pos;
2796 } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) {
2797 pos = cur_stream->audio_pkt.pos;
2799 pos = avio_tell(cur_stream->ic->pb);
2800 if (cur_stream->ic->bit_rate)
2801 incr *= cur_stream->ic->bit_rate / 8.0;
2805 stream_seek(cur_stream, pos, incr, 1);
2807 pos = get_master_clock(cur_stream);
2809 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2817 case SDL_MOUSEBUTTONDOWN:
2818 if (exit_on_mousedown) {
2822 case SDL_MOUSEMOTION:
2823 if (event.type == SDL_MOUSEBUTTONDOWN) {
2826 if (event.motion.state != SDL_PRESSED)
2831 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
2832 uint64_t size = avio_size(cur_stream->ic->pb);
2833 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2837 int tns, thh, tmm, tss;
2838 tns = cur_stream->ic->duration / 1000000LL;
2840 tmm = (tns % 3600) / 60;
2842 frac = x / cur_stream->width;
2845 mm = (ns % 3600) / 60;
2847 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2848 hh, mm, ss, thh, tmm, tss);
2849 ts = frac * cur_stream->ic->duration;
2850 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2851 ts += cur_stream->ic->start_time;
2852 stream_seek(cur_stream, ts, 0, 0);
2856 case SDL_VIDEORESIZE:
2858 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2859 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2860 screen_width = cur_stream->width = event.resize.w;
2861 screen_height = cur_stream->height = event.resize.h;
2868 case FF_ALLOC_EVENT:
2869 video_open(event.user.data1);
2870 alloc_picture(event.user.data1);
2872 case FF_REFRESH_EVENT:
2873 video_refresh_timer(event.user.data1);
2874 cur_stream->refresh = 0;
2882 static int opt_frame_size(const char *opt, const char *arg)
2884 av_log(NULL, AV_LOG_ERROR,
2885 "Option '%s' has been removed, use private format options instead\n", opt);
2886 return AVERROR(EINVAL);
2889 static int opt_width(const char *opt, const char *arg)
2891 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2895 static int opt_height(const char *opt, const char *arg)
2897 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2901 static int opt_format(const char *opt, const char *arg)
2903 file_iformat = av_find_input_format(arg);
2904 if (!file_iformat) {
2905 fprintf(stderr, "Unknown input format: %s\n", arg);
2906 return AVERROR(EINVAL);
2911 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2913 av_log(NULL, AV_LOG_ERROR,
2914 "Option '%s' has been removed, use private format options instead\n", opt);
2915 return AVERROR(EINVAL);
2918 static int opt_sync(const char *opt, const char *arg)
2920 if (!strcmp(arg, "audio"))
2921 av_sync_type = AV_SYNC_AUDIO_MASTER;
2922 else if (!strcmp(arg, "video"))
2923 av_sync_type = AV_SYNC_VIDEO_MASTER;
2924 else if (!strcmp(arg, "ext"))
2925 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2927 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2933 static int opt_seek(const char *opt, const char *arg)
2935 start_time = parse_time_or_die(opt, arg, 1);
2939 static int opt_duration(const char *opt, const char *arg)
2941 duration = parse_time_or_die(opt, arg, 1);
2945 static int opt_debug(const char *opt, const char *arg)
2947 av_log_set_level(99);
2948 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2952 static int opt_vismv(const char *opt, const char *arg)
2954 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2958 static const OptionDef options[] = {
2959 #include "cmdutils_common_opts.h"
2960 { "x", HAS_ARG, { (void*)opt_width }, "force displayed width", "width" },
2961 { "y", HAS_ARG, { (void*)opt_height }, "force displayed height", "height" },
2962 { "s", HAS_ARG | OPT_VIDEO, { (void*)opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
2963 { "fs", OPT_BOOL, { (void*)&is_full_screen }, "force full screen" },
2964 { "an", OPT_BOOL, { (void*)&audio_disable }, "disable audio" },
2965 { "vn", OPT_BOOL, { (void*)&video_disable }, "disable video" },
2966 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
2967 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
2968 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
2969 { "ss", HAS_ARG, { (void*)&opt_seek }, "seek to a given position in seconds", "pos" },
2970 { "t", HAS_ARG, { (void*)&opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
2971 { "bytes", OPT_INT | HAS_ARG, { (void*)&seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
2972 { "nodisp", OPT_BOOL, { (void*)&display_disable }, "disable graphical display" },
2973 { "f", HAS_ARG, { (void*)opt_format }, "force format", "fmt" },
2974 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { (void*)opt_frame_pix_fmt }, "set pixel format", "format" },
2975 { "stats", OPT_BOOL | OPT_EXPERT, { (void*)&show_status }, "show status", "" },
2976 { "debug", HAS_ARG | OPT_EXPERT, { (void*)opt_debug }, "print specific debug info", "" },
2977 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&workaround_bugs }, "workaround bugs", "" },
2978 { "vismv", HAS_ARG | OPT_EXPERT, { (void*)opt_vismv }, "visualize motion vectors", "" },
2979 { "fast", OPT_BOOL | OPT_EXPERT, { (void*)&fast }, "non spec compliant optimizations", "" },
2980 { "genpts", OPT_BOOL | OPT_EXPERT, { (void*)&genpts }, "generate pts", "" },
2981 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2982 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&lowres }, "", "" },
2983 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_loop_filter }, "", "" },
2984 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_frame }, "", "" },
2985 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_idct }, "", "" },
2986 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&idct }, "set idct algo", "algo" },
2987 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&error_concealment }, "set error concealment options", "bit_mask" },
2988 { "sync", HAS_ARG | OPT_EXPERT, { (void*)opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
2989 { "autoexit", OPT_BOOL | OPT_EXPERT, { (void*)&autoexit }, "exit at the end", "" },
2990 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_keydown }, "exit on key down", "" },
2991 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_mousedown }, "exit on mouse down", "" },
2992 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&loop }, "set number of times the playback shall be looped", "loop count" },
2993 { "framedrop", OPT_BOOL | OPT_EXPERT, { (void*)&framedrop }, "drop frames when cpu is too slow", "" },
2994 { "window_title", OPT_STRING | HAS_ARG, { (void*)&window_title }, "set window title", "window title" },
2996 { "vf", OPT_STRING | HAS_ARG, { (void*)&vfilters }, "video filters", "filter list" },
2998 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { (void*)&rdftspeed }, "rdft speed", "msecs" },
2999 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { (void*)opt_default }, "generic catch all option", "" },
3000 { "i", 0, { NULL }, "avconv compatibility dummy option", ""},
3004 static void show_usage(void)
3006 printf("Simple media player\n");
3007 printf("usage: %s [options] input_file\n", program_name);
3011 static void show_help(void)
3013 av_log_set_callback(log_callback_help);
3015 show_help_options(options, "Main options:\n",
3017 show_help_options(options, "\nAdvanced options:\n",
3018 OPT_EXPERT, OPT_EXPERT);
3020 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3021 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3022 #if !CONFIG_AVFILTER
3023 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3025 printf("\nWhile playing:\n"
3027 "f toggle full screen\n"
3029 "a cycle audio channel\n"
3030 "v cycle video channel\n"
3031 "t cycle subtitle channel\n"
3032 "w show audio waves\n"
3033 "s activate frame-step mode\n"
3034 "left/right seek backward/forward 10 seconds\n"
3035 "down/up seek backward/forward 1 minute\n"
3036 "mouse click seek to percentage in file corresponding to fraction of width\n"
3040 static void opt_input_file(void *optctx, const char *filename)
3042 if (input_filename) {
3043 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3044 filename, input_filename);
3047 if (!strcmp(filename, "-"))
3049 input_filename = filename;
3052 /* Called from the main */
3053 int main(int argc, char **argv)
3057 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3058 parse_loglevel(argc, argv, options);
3060 /* register all codecs, demux and protocols */
3061 avcodec_register_all();
3063 avdevice_register_all();
3066 avfilter_register_all();
3069 avformat_network_init();
3075 parse_options(NULL, argc, argv, options, opt_input_file);
3077 if (!input_filename) {
3079 fprintf(stderr, "An input file must be specified\n");
3080 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3084 if (display_disable) {
3087 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3088 #if !defined(__MINGW32__) && !defined(__APPLE__)
3089 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3091 if (SDL_Init (flags)) {
3092 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3096 if (!display_disable) {
3097 #if HAVE_SDL_VIDEO_SIZE
3098 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3099 fs_screen_width = vi->current_w;
3100 fs_screen_height = vi->current_h;
3104 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3105 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3106 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3108 av_init_packet(&flush_pkt);
3109 flush_pkt.data = "FLUSH";
3111 cur_stream = stream_open(input_filename, file_iformat);