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;
140 int dtg_active_format;
145 double external_clock; /* external clock base */
146 int64_t external_clock_time;
149 double audio_diff_cum; /* used for AV difference average computation */
150 double audio_diff_avg_coef;
151 double audio_diff_threshold;
152 int audio_diff_avg_count;
155 int audio_hw_buf_size;
156 uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
159 unsigned int audio_buf_size; /* in bytes */
160 int audio_buf_index; /* in bytes */
161 AVPacket audio_pkt_temp;
163 enum AVSampleFormat audio_src_fmt;
164 AVAudioConvert *reformat_ctx;
167 int show_audio; /* if true, display audio samples */
168 int16_t sample_array[SAMPLE_ARRAY_SIZE];
169 int sample_array_index;
173 FFTSample *rdft_data;
176 SDL_Thread *subtitle_tid;
178 int subtitle_stream_changed;
179 AVStream *subtitle_st;
180 PacketQueue subtitleq;
181 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
182 int subpq_size, subpq_rindex, subpq_windex;
183 SDL_mutex *subpq_mutex;
184 SDL_cond *subpq_cond;
187 double frame_last_pts;
188 double frame_last_delay;
189 double video_clock; ///< pts of last decoded frame / predicted pts of next decoded frame
193 double video_current_pts; ///< current displayed pts (different from video_clock if frame fifos are used)
194 double video_current_pts_drift; ///< video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
195 int64_t video_current_pos; ///< current displayed file pos
196 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
197 int pictq_size, pictq_rindex, pictq_windex;
198 SDL_mutex *pictq_mutex;
199 SDL_cond *pictq_cond;
201 struct SwsContext *img_convert_ctx;
204 // QETimer *video_timer;
206 int width, height, xleft, ytop;
208 PtsCorrectionContext pts_ctx;
211 AVFilterContext *out_video_filter; ///< the last filter in the video chain
215 float skip_frames_index;
219 static void show_help(void);
221 /* options specified by the user */
222 static AVInputFormat *file_iformat;
223 static const char *input_filename;
224 static const char *window_title;
225 static int fs_screen_width;
226 static int fs_screen_height;
227 static int screen_width = 0;
228 static int screen_height = 0;
229 static int audio_disable;
230 static int video_disable;
231 static int wanted_stream[AVMEDIA_TYPE_NB] = {
232 [AVMEDIA_TYPE_AUDIO] = -1,
233 [AVMEDIA_TYPE_VIDEO] = -1,
234 [AVMEDIA_TYPE_SUBTITLE] = -1,
236 static int seek_by_bytes = -1;
237 static int display_disable;
238 static int show_status = 1;
239 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
240 static int64_t start_time = AV_NOPTS_VALUE;
241 static int64_t duration = AV_NOPTS_VALUE;
242 static int debug = 0;
243 static int debug_mv = 0;
245 static int workaround_bugs = 1;
247 static int genpts = 0;
248 static int lowres = 0;
249 static int idct = FF_IDCT_AUTO;
250 static enum AVDiscard skip_frame = AVDISCARD_DEFAULT;
251 static enum AVDiscard skip_idct = AVDISCARD_DEFAULT;
252 static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT;
253 static int error_concealment = 3;
254 static int decoder_reorder_pts = -1;
256 static int exit_on_keydown;
257 static int exit_on_mousedown;
259 static int framedrop = 1;
261 static int rdftspeed = 20;
263 static char *vfilters = NULL;
266 /* current context */
267 static int is_full_screen;
268 static VideoState *cur_stream;
269 static int64_t audio_callback_time;
271 static AVPacket flush_pkt;
273 #define FF_ALLOC_EVENT (SDL_USEREVENT)
274 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
275 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
277 static SDL_Surface *screen;
279 void exit_program(int ret)
284 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
286 /* packet queue handling */
287 static void packet_queue_init(PacketQueue *q)
289 memset(q, 0, sizeof(PacketQueue));
290 q->mutex = SDL_CreateMutex();
291 q->cond = SDL_CreateCond();
292 packet_queue_put(q, &flush_pkt);
295 static void packet_queue_flush(PacketQueue *q)
297 AVPacketList *pkt, *pkt1;
299 SDL_LockMutex(q->mutex);
300 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
302 av_free_packet(&pkt->pkt);
309 SDL_UnlockMutex(q->mutex);
312 static void packet_queue_end(PacketQueue *q)
314 packet_queue_flush(q);
315 SDL_DestroyMutex(q->mutex);
316 SDL_DestroyCond(q->cond);
319 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
323 /* duplicate the packet */
324 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
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(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
440 int wrap, wrap3, width2, skip2;
441 int y, u, v, a, u1, v1, a1, w, h;
442 uint8_t *lum, *cb, *cr;
445 int dstx, dsty, dstw, dsth;
447 dstw = av_clip(rect->w, 0, imgw);
448 dsth = av_clip(rect->h, 0, imgh);
449 dstx = av_clip(rect->x, 0, imgw - dstw);
450 dsty = av_clip(rect->y, 0, imgh - dsth);
451 lum = dst->data[0] + dsty * dst->linesize[0];
452 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
453 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
455 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
457 wrap = dst->linesize[0];
458 wrap3 = rect->pict.linesize[0];
459 p = rect->pict.data[0];
460 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
468 YUVA_IN(y, u, v, a, p, pal);
469 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
470 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
471 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
477 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
478 YUVA_IN(y, u, v, a, p, pal);
482 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
484 YUVA_IN(y, u, v, a, p + BPP, pal);
488 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
489 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
490 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
497 YUVA_IN(y, u, v, a, p, pal);
498 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
499 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
500 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
504 p += wrap3 - dstw * BPP;
505 lum += wrap - dstw - dstx;
506 cb += dst->linesize[1] - width2 - skip2;
507 cr += dst->linesize[2] - width2 - skip2;
509 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
515 YUVA_IN(y, u, v, a, p, pal);
519 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
522 YUVA_IN(y, u, v, a, p, pal);
526 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
527 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
528 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
534 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
535 YUVA_IN(y, u, v, a, p, pal);
539 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
541 YUVA_IN(y, u, v, a, p + BPP, pal);
545 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
549 YUVA_IN(y, u, v, a, p, pal);
553 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
555 YUVA_IN(y, u, v, a, p + BPP, pal);
559 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
561 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
562 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
566 p += -wrap3 + 2 * BPP;
570 YUVA_IN(y, u, v, a, p, pal);
574 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
577 YUVA_IN(y, u, v, a, p, pal);
581 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
582 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
583 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
589 p += wrap3 + (wrap3 - dstw * BPP);
590 lum += wrap + (wrap - dstw - dstx);
591 cb += dst->linesize[1] - width2 - skip2;
592 cr += dst->linesize[2] - width2 - skip2;
594 /* handle odd height */
601 YUVA_IN(y, u, v, a, p, pal);
602 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
603 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
604 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
610 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
611 YUVA_IN(y, u, v, a, p, pal);
615 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
617 YUVA_IN(y, u, v, a, p + BPP, pal);
621 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
622 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
623 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
630 YUVA_IN(y, u, v, a, p, pal);
631 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
632 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
633 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
638 static void free_subpicture(SubPicture *sp)
640 avsubtitle_free(&sp->sub);
643 static void video_image_display(VideoState *is)
649 int width, height, x, y;
653 vp = &is->pictq[is->pictq_rindex];
656 if (vp->picref->video->pixel_aspect.num == 0)
659 aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
662 /* XXX: use variable in the frame */
663 if (is->video_st->sample_aspect_ratio.num)
664 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
665 else if (is->video_st->codec->sample_aspect_ratio.num)
666 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
670 if (aspect_ratio <= 0.0)
672 aspect_ratio *= (float)vp->width / (float)vp->height;
676 if (is->subpq_size > 0)
678 sp = &is->subpq[is->subpq_rindex];
680 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
682 SDL_LockYUVOverlay (vp->bmp);
684 pict.data[0] = vp->bmp->pixels[0];
685 pict.data[1] = vp->bmp->pixels[2];
686 pict.data[2] = vp->bmp->pixels[1];
688 pict.linesize[0] = vp->bmp->pitches[0];
689 pict.linesize[1] = vp->bmp->pitches[2];
690 pict.linesize[2] = vp->bmp->pitches[1];
692 for (i = 0; i < sp->sub.num_rects; i++)
693 blend_subrect(&pict, sp->sub.rects[i],
694 vp->bmp->w, vp->bmp->h);
696 SDL_UnlockYUVOverlay (vp->bmp);
702 /* XXX: we suppose the screen has a 1.0 pixel ratio */
704 width = ((int)rint(height * aspect_ratio)) & ~1;
705 if (width > is->width) {
707 height = ((int)rint(width / aspect_ratio)) & ~1;
709 x = (is->width - width) / 2;
710 y = (is->height - height) / 2;
711 is->no_background = 0;
712 rect.x = is->xleft + x;
713 rect.y = is->ytop + y;
716 SDL_DisplayYUVOverlay(vp->bmp, &rect);
720 /* get the current audio output buffer size, in samples. With SDL, we
721 cannot have a precise information */
722 static int audio_write_get_buf_size(VideoState *is)
724 return is->audio_buf_size - is->audio_buf_index;
727 static inline int compute_mod(int a, int b)
736 static void video_audio_display(VideoState *s)
738 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
739 int ch, channels, h, h2, bgcolor, fgcolor;
741 int rdft_bits, nb_freq;
743 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
745 nb_freq = 1 << (rdft_bits - 1);
747 /* compute display index : center on currently output samples */
748 channels = s->audio_st->codec->channels;
749 nb_display_channels = channels;
751 int data_used = s->show_audio == 1 ? s->width : (2 * nb_freq);
753 delay = audio_write_get_buf_size(s);
756 /* to be more precise, we take into account the time spent since
757 the last buffer computation */
758 if (audio_callback_time) {
759 time_diff = av_gettime() - audio_callback_time;
760 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
763 delay += 2 * data_used;
764 if (delay < data_used)
767 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
768 if (s->show_audio == 1) {
770 for (i = 0; i < 1000; i += channels) {
771 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
772 int a = s->sample_array[idx];
773 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
774 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
775 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
777 if (h < score && (b ^ c) < 0) {
784 s->last_i_start = i_start;
786 i_start = s->last_i_start;
789 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
790 if (s->show_audio == 1) {
791 fill_rectangle(screen,
792 s->xleft, s->ytop, s->width, s->height,
795 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
797 /* total height for one channel */
798 h = s->height / nb_display_channels;
799 /* graph height / 2 */
801 for (ch = 0; ch < nb_display_channels; ch++) {
803 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
804 for (x = 0; x < s->width; x++) {
805 y = (s->sample_array[i] * h2) >> 15;
812 fill_rectangle(screen,
813 s->xleft + x, ys, 1, y,
816 if (i >= SAMPLE_ARRAY_SIZE)
817 i -= SAMPLE_ARRAY_SIZE;
821 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
823 for (ch = 1; ch < nb_display_channels; ch++) {
824 y = s->ytop + ch * h;
825 fill_rectangle(screen,
826 s->xleft, y, s->width, 1,
829 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
831 nb_display_channels= FFMIN(nb_display_channels, 2);
832 if (rdft_bits != s->rdft_bits) {
833 av_rdft_end(s->rdft);
834 av_free(s->rdft_data);
835 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
836 s->rdft_bits = rdft_bits;
837 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
841 for (ch = 0; ch < nb_display_channels; ch++) {
842 data[ch] = s->rdft_data + 2 * nb_freq * ch;
844 for (x = 0; x < 2 * nb_freq; x++) {
845 double w = (x-nb_freq) * (1.0 / nb_freq);
846 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
848 if (i >= SAMPLE_ARRAY_SIZE)
849 i -= SAMPLE_ARRAY_SIZE;
851 av_rdft_calc(s->rdft, data[ch]);
853 // least efficient way to do this, we should of course directly access it but its more than fast enough
854 for (y = 0; y < s->height; y++) {
855 double w = 1 / sqrt(nb_freq);
856 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]));
857 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
858 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
861 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
863 fill_rectangle(screen,
864 s->xpos, s->height-y, 1, 1,
868 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
870 if (s->xpos >= s->width)
875 static int video_open(VideoState *is)
877 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
880 if (is_full_screen) flags |= SDL_FULLSCREEN;
881 else flags |= SDL_RESIZABLE;
883 if (is_full_screen && fs_screen_width) {
885 h = fs_screen_height;
886 } else if (!is_full_screen && screen_width) {
890 } else if (is->out_video_filter && is->out_video_filter->inputs[0]) {
891 w = is->out_video_filter->inputs[0]->w;
892 h = is->out_video_filter->inputs[0]->h;
894 } else if (is->video_st && is->video_st->codec->width) {
895 w = is->video_st->codec->width;
896 h = is->video_st->codec->height;
902 if (screen && is->width == screen->w && screen->w == w
903 && is->height== screen->h && screen->h == h)
906 #if defined(__APPLE__) && !SDL_VERSION_ATLEAST(1, 2, 14)
907 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X and older SDL */
908 screen = SDL_SetVideoMode(w, h, 24, flags);
910 screen = SDL_SetVideoMode(w, h, 0, flags);
913 fprintf(stderr, "SDL: could not set video mode - exiting\n");
917 window_title = input_filename;
918 SDL_WM_SetCaption(window_title, window_title);
920 is->width = screen->w;
921 is->height = screen->h;
926 /* display the current picture, if any */
927 static void video_display(VideoState *is)
930 video_open(cur_stream);
931 if (is->audio_st && is->show_audio)
932 video_audio_display(is);
933 else if (is->video_st)
934 video_image_display(is);
937 static int refresh_thread(void *opaque)
939 VideoState *is= opaque;
940 while (!is->abort_request) {
942 event.type = FF_REFRESH_EVENT;
943 event.user.data1 = opaque;
946 SDL_PushEvent(&event);
948 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
953 /* get the current audio clock value */
954 static double get_audio_clock(VideoState *is)
957 int hw_buf_size, bytes_per_sec;
958 pts = is->audio_clock;
959 hw_buf_size = audio_write_get_buf_size(is);
962 bytes_per_sec = is->audio_st->codec->sample_rate *
963 2 * is->audio_st->codec->channels;
966 pts -= (double)hw_buf_size / bytes_per_sec;
970 /* get the current video clock value */
971 static double get_video_clock(VideoState *is)
974 return is->video_current_pts;
976 return is->video_current_pts_drift + av_gettime() / 1000000.0;
980 /* get the current external clock value */
981 static double get_external_clock(VideoState *is)
985 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
988 /* get the current master clock value */
989 static double get_master_clock(VideoState *is)
993 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
995 val = get_video_clock(is);
997 val = get_audio_clock(is);
998 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1000 val = get_audio_clock(is);
1002 val = get_video_clock(is);
1004 val = get_external_clock(is);
1009 /* seek in the stream */
1010 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1012 if (!is->seek_req) {
1015 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1017 is->seek_flags |= AVSEEK_FLAG_BYTE;
1022 /* pause or resume the video */
1023 static void stream_pause(VideoState *is)
1026 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1027 if (is->read_pause_return != AVERROR(ENOSYS)) {
1028 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1030 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1032 is->paused = !is->paused;
1035 static double compute_target_time(double frame_current_pts, VideoState *is)
1037 double delay, sync_threshold, diff;
1039 /* compute nominal delay */
1040 delay = frame_current_pts - is->frame_last_pts;
1041 if (delay <= 0 || delay >= 10.0) {
1042 /* if incorrect delay, use previous one */
1043 delay = is->frame_last_delay;
1045 is->frame_last_delay = delay;
1047 is->frame_last_pts = frame_current_pts;
1049 /* update delay to follow master synchronisation source */
1050 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1051 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1052 /* if video is slave, we try to correct big delays by
1053 duplicating or deleting a frame */
1054 diff = get_video_clock(is) - get_master_clock(is);
1056 /* skip or repeat frame. We take into account the
1057 delay to compute the threshold. I still don't know
1058 if it is the best guess */
1059 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1060 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1061 if (diff <= -sync_threshold)
1063 else if (diff >= sync_threshold)
1067 is->frame_timer += delay;
1069 av_dlog(NULL, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
1070 delay, frame_current_pts, -diff);
1072 return is->frame_timer;
1075 /* called to display each frame */
1076 static void video_refresh_timer(void *opaque)
1078 VideoState *is = opaque;
1081 SubPicture *sp, *sp2;
1085 if (is->pictq_size == 0) {
1086 // nothing to do, no picture to display in the que
1088 double time = av_gettime() / 1000000.0;
1090 /* dequeue the picture */
1091 vp = &is->pictq[is->pictq_rindex];
1093 if (time < vp->target_clock)
1095 /* update current video pts */
1096 is->video_current_pts = vp->pts;
1097 is->video_current_pts_drift = is->video_current_pts - time;
1098 is->video_current_pos = vp->pos;
1099 if (is->pictq_size > 1) {
1100 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1101 assert(nextvp->target_clock >= vp->target_clock);
1102 next_target= nextvp->target_clock;
1104 next_target = vp->target_clock + is->video_clock - vp->pts; // FIXME pass durations cleanly
1106 if (framedrop && time > next_target) {
1107 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1108 if (is->pictq_size > 1 || time > next_target + 0.5) {
1109 /* update queue size and signal for next picture */
1110 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1111 is->pictq_rindex = 0;
1113 SDL_LockMutex(is->pictq_mutex);
1115 SDL_CondSignal(is->pictq_cond);
1116 SDL_UnlockMutex(is->pictq_mutex);
1121 if (is->subtitle_st) {
1122 if (is->subtitle_stream_changed) {
1123 SDL_LockMutex(is->subpq_mutex);
1125 while (is->subpq_size) {
1126 free_subpicture(&is->subpq[is->subpq_rindex]);
1128 /* update queue size and signal for next picture */
1129 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1130 is->subpq_rindex = 0;
1134 is->subtitle_stream_changed = 0;
1136 SDL_CondSignal(is->subpq_cond);
1137 SDL_UnlockMutex(is->subpq_mutex);
1139 if (is->subpq_size > 0) {
1140 sp = &is->subpq[is->subpq_rindex];
1142 if (is->subpq_size > 1)
1143 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1147 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1148 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1150 free_subpicture(sp);
1152 /* update queue size and signal for next picture */
1153 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1154 is->subpq_rindex = 0;
1156 SDL_LockMutex(is->subpq_mutex);
1158 SDL_CondSignal(is->subpq_cond);
1159 SDL_UnlockMutex(is->subpq_mutex);
1165 /* display picture */
1166 if (!display_disable)
1169 /* update queue size and signal for next picture */
1170 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1171 is->pictq_rindex = 0;
1173 SDL_LockMutex(is->pictq_mutex);
1175 SDL_CondSignal(is->pictq_cond);
1176 SDL_UnlockMutex(is->pictq_mutex);
1178 } else if (is->audio_st) {
1179 /* draw the next audio frame */
1181 /* if only audio stream, then display the audio bars (better
1182 than nothing, just to test the implementation */
1184 /* display picture */
1185 if (!display_disable)
1189 static int64_t last_time;
1191 int aqsize, vqsize, sqsize;
1194 cur_time = av_gettime();
1195 if (!last_time || (cur_time - last_time) >= 30000) {
1200 aqsize = is->audioq.size;
1202 vqsize = is->videoq.size;
1203 if (is->subtitle_st)
1204 sqsize = is->subtitleq.size;
1206 if (is->audio_st && is->video_st)
1207 av_diff = get_audio_clock(is) - get_video_clock(is);
1208 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1209 get_master_clock(is), av_diff, FFMAX(is->skip_frames - 1, 0), aqsize / 1024,
1210 vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
1212 last_time = cur_time;
1217 static void stream_close(VideoState *is)
1221 /* XXX: use a special url_shutdown call to abort parse cleanly */
1222 is->abort_request = 1;
1223 SDL_WaitThread(is->parse_tid, NULL);
1224 SDL_WaitThread(is->refresh_tid, NULL);
1226 /* free all pictures */
1227 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1231 avfilter_unref_buffer(vp->picref);
1236 SDL_FreeYUVOverlay(vp->bmp);
1240 SDL_DestroyMutex(is->pictq_mutex);
1241 SDL_DestroyCond(is->pictq_cond);
1242 SDL_DestroyMutex(is->subpq_mutex);
1243 SDL_DestroyCond(is->subpq_cond);
1244 #if !CONFIG_AVFILTER
1245 if (is->img_convert_ctx)
1246 sws_freeContext(is->img_convert_ctx);
1251 static void do_exit(void)
1254 stream_close(cur_stream);
1261 avformat_network_deinit();
1265 av_log(NULL, AV_LOG_QUIET, "");
1269 /* allocate a picture (needs to do that in main thread to avoid
1270 potential locking problems */
1271 static void alloc_picture(void *opaque)
1273 VideoState *is = opaque;
1276 vp = &is->pictq[is->pictq_windex];
1279 SDL_FreeYUVOverlay(vp->bmp);
1283 avfilter_unref_buffer(vp->picref);
1286 vp->width = is->out_video_filter->inputs[0]->w;
1287 vp->height = is->out_video_filter->inputs[0]->h;
1288 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1290 vp->width = is->video_st->codec->width;
1291 vp->height = is->video_st->codec->height;
1292 vp->pix_fmt = is->video_st->codec->pix_fmt;
1295 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1298 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1299 /* SDL allocates a buffer smaller than requested if the video
1300 * overlay hardware is unable to support the requested size. */
1301 fprintf(stderr, "Error: the video system does not support an image\n"
1302 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1303 "to reduce the image size.\n", vp->width, vp->height );
1307 SDL_LockMutex(is->pictq_mutex);
1309 SDL_CondSignal(is->pictq_cond);
1310 SDL_UnlockMutex(is->pictq_mutex);
1315 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1317 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1323 int dst_pix_fmt = PIX_FMT_YUV420P;
1325 /* wait until we have space to put a new picture */
1326 SDL_LockMutex(is->pictq_mutex);
1328 if (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1329 is->skip_frames = FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0 - FRAME_SKIP_FACTOR));
1331 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1332 !is->videoq.abort_request) {
1333 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1335 SDL_UnlockMutex(is->pictq_mutex);
1337 if (is->videoq.abort_request)
1340 vp = &is->pictq[is->pictq_windex];
1342 /* alloc or resize hardware picture buffer */
1343 if (!vp->bmp || vp->reallocate ||
1345 vp->width != is->out_video_filter->inputs[0]->w ||
1346 vp->height != is->out_video_filter->inputs[0]->h) {
1348 vp->width != is->video_st->codec->width ||
1349 vp->height != is->video_st->codec->height) {
1356 /* the allocation must be done in the main thread to avoid
1358 event.type = FF_ALLOC_EVENT;
1359 event.user.data1 = is;
1360 SDL_PushEvent(&event);
1362 /* wait until the picture is allocated */
1363 SDL_LockMutex(is->pictq_mutex);
1364 while (!vp->allocated && !is->videoq.abort_request) {
1365 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1367 SDL_UnlockMutex(is->pictq_mutex);
1369 if (is->videoq.abort_request)
1373 /* if the frame is not skipped, then display it */
1378 avfilter_unref_buffer(vp->picref);
1379 vp->picref = src_frame->opaque;
1382 /* get a pointer on the bitmap */
1383 SDL_LockYUVOverlay (vp->bmp);
1385 memset(&pict, 0, sizeof(AVPicture));
1386 pict.data[0] = vp->bmp->pixels[0];
1387 pict.data[1] = vp->bmp->pixels[2];
1388 pict.data[2] = vp->bmp->pixels[1];
1390 pict.linesize[0] = vp->bmp->pitches[0];
1391 pict.linesize[1] = vp->bmp->pitches[2];
1392 pict.linesize[2] = vp->bmp->pitches[1];
1395 pict_src.data[0] = src_frame->data[0];
1396 pict_src.data[1] = src_frame->data[1];
1397 pict_src.data[2] = src_frame->data[2];
1399 pict_src.linesize[0] = src_frame->linesize[0];
1400 pict_src.linesize[1] = src_frame->linesize[1];
1401 pict_src.linesize[2] = src_frame->linesize[2];
1403 // FIXME use direct rendering
1404 av_picture_copy(&pict, &pict_src,
1405 vp->pix_fmt, vp->width, vp->height);
1407 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1408 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1409 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1410 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1411 if (is->img_convert_ctx == NULL) {
1412 fprintf(stderr, "Cannot initialize the conversion context\n");
1415 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1416 0, vp->height, pict.data, pict.linesize);
1418 /* update the bitmap content */
1419 SDL_UnlockYUVOverlay(vp->bmp);
1424 /* now we can update the picture count */
1425 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1426 is->pictq_windex = 0;
1427 SDL_LockMutex(is->pictq_mutex);
1428 vp->target_clock = compute_target_time(vp->pts, is);
1431 SDL_UnlockMutex(is->pictq_mutex);
1437 * compute the exact PTS for the picture if it is omitted in the stream
1438 * @param pts1 the dts of the pkt / pts of the frame
1440 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1442 double frame_delay, pts;
1447 /* update video clock with pts, if present */
1448 is->video_clock = pts;
1450 pts = is->video_clock;
1452 /* update video clock for next frame */
1453 frame_delay = av_q2d(is->video_st->codec->time_base);
1454 /* for MPEG2, the frame can be repeated, so we update the
1455 clock accordingly */
1456 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1457 is->video_clock += frame_delay;
1459 return queue_picture(is, src_frame, pts, pos);
1462 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1466 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1469 if (pkt->data == flush_pkt.data) {
1470 avcodec_flush_buffers(is->video_st->codec);
1472 SDL_LockMutex(is->pictq_mutex);
1473 // Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1474 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1475 is->pictq[i].target_clock= 0;
1477 while (is->pictq_size && !is->videoq.abort_request) {
1478 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1480 is->video_current_pos = -1;
1481 SDL_UnlockMutex(is->pictq_mutex);
1483 init_pts_correction(&is->pts_ctx);
1484 is->frame_last_pts = AV_NOPTS_VALUE;
1485 is->frame_last_delay = 0;
1486 is->frame_timer = (double)av_gettime() / 1000000.0;
1487 is->skip_frames = 1;
1488 is->skip_frames_index = 0;
1492 avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
1495 if (decoder_reorder_pts == -1) {
1496 *pts = guess_correct_pts(&is->pts_ctx, frame->pkt_pts, frame->pkt_dts);
1497 } else if (decoder_reorder_pts) {
1498 *pts = frame->pkt_pts;
1500 *pts = frame->pkt_dts;
1503 if (*pts == AV_NOPTS_VALUE) {
1507 is->skip_frames_index += 1;
1508 if (is->skip_frames_index >= is->skip_frames) {
1509 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1524 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1526 AVFilterContext *ctx = codec->opaque;
1527 AVFilterBufferRef *ref;
1528 int perms = AV_PERM_WRITE;
1529 int i, w, h, stride[AV_NUM_DATA_POINTERS];
1533 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1534 perms |= AV_PERM_NEG_LINESIZES;
1536 if (pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1537 if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1538 if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1539 if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1541 if (pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1545 avcodec_align_dimensions2(codec, &w, &h, stride);
1546 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1550 if (!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1553 pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1 + 1;
1554 ref->video->w = codec->width;
1555 ref->video->h = codec->height;
1556 for (i = 0; i < 4; i ++) {
1557 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1558 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1561 ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1563 pic->data[i] = ref->data[i];
1564 pic->linesize[i] = ref->linesize[i];
1567 pic->type = FF_BUFFER_TYPE_USER;
1568 pic->reordered_opaque = codec->reordered_opaque;
1569 if (codec->pkt) pic->pkt_pts = codec->pkt->pts;
1570 else pic->pkt_pts = AV_NOPTS_VALUE;
1574 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1576 memset(pic->data, 0, sizeof(pic->data));
1577 avfilter_unref_buffer(pic->opaque);
1580 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1582 AVFilterBufferRef *ref = pic->opaque;
1584 if (pic->data[0] == NULL) {
1585 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1586 return codec->get_buffer(codec, pic);
1589 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1590 (codec->pix_fmt != ref->format)) {
1591 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1595 pic->reordered_opaque = codec->reordered_opaque;
1596 if (codec->pkt) pic->pkt_pts = codec->pkt->pts;
1597 else pic->pkt_pts = AV_NOPTS_VALUE;
1601 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1603 FilterPriv *priv = ctx->priv;
1604 AVCodecContext *codec;
1605 if (!opaque) return -1;
1608 codec = priv->is->video_st->codec;
1609 codec->opaque = ctx;
1610 if (codec->codec->capabilities & CODEC_CAP_DR1) {
1612 codec->get_buffer = input_get_buffer;
1613 codec->release_buffer = input_release_buffer;
1614 codec->reget_buffer = input_reget_buffer;
1615 codec->thread_safe_callbacks = 1;
1618 priv->frame = avcodec_alloc_frame();
1623 static void input_uninit(AVFilterContext *ctx)
1625 FilterPriv *priv = ctx->priv;
1626 av_free(priv->frame);
1629 static int input_request_frame(AVFilterLink *link)
1631 FilterPriv *priv = link->src->priv;
1632 AVFilterBufferRef *picref;
1637 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1638 av_free_packet(&pkt);
1642 if (priv->use_dr1) {
1643 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1645 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1646 av_image_copy(picref->data, picref->linesize,
1647 priv->frame->data, priv->frame->linesize,
1648 picref->format, link->w, link->h);
1650 av_free_packet(&pkt);
1652 avfilter_copy_frame_props(picref, priv->frame);
1655 avfilter_start_frame(link, picref);
1656 avfilter_draw_slice(link, 0, link->h, 1);
1657 avfilter_end_frame(link);
1662 static int input_query_formats(AVFilterContext *ctx)
1664 FilterPriv *priv = ctx->priv;
1665 enum PixelFormat pix_fmts[] = {
1666 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1669 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1673 static int input_config_props(AVFilterLink *link)
1675 FilterPriv *priv = link->src->priv;
1676 AVCodecContext *c = priv->is->video_st->codec;
1679 link->h = c->height;
1680 link->time_base = priv->is->video_st->time_base;
1685 static AVFilter input_filter =
1687 .name = "avplay_input",
1689 .priv_size = sizeof(FilterPriv),
1692 .uninit = input_uninit,
1694 .query_formats = input_query_formats,
1696 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1697 .outputs = (AVFilterPad[]) {{ .name = "default",
1698 .type = AVMEDIA_TYPE_VIDEO,
1699 .request_frame = input_request_frame,
1700 .config_props = input_config_props, },
1704 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1706 char sws_flags_str[128];
1708 SinkContext sink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1709 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1710 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1711 graph->scale_sws_opts = av_strdup(sws_flags_str);
1713 if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1714 NULL, is, graph)) < 0)
1716 if ((ret = avfilter_graph_create_filter(&filt_out, &sink, "out",
1717 NULL, &sink_ctx, graph)) < 0)
1721 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1722 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
1724 outputs->name = av_strdup("in");
1725 outputs->filter_ctx = filt_src;
1726 outputs->pad_idx = 0;
1727 outputs->next = NULL;
1729 inputs->name = av_strdup("out");
1730 inputs->filter_ctx = filt_out;
1731 inputs->pad_idx = 0;
1732 inputs->next = NULL;
1734 if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1736 av_freep(&vfilters);
1738 if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1742 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1745 is->out_video_filter = filt_out;
1750 #endif /* CONFIG_AVFILTER */
1752 static int video_thread(void *arg)
1754 VideoState *is = arg;
1755 AVFrame *frame = avcodec_alloc_frame();
1761 AVFilterGraph *graph = avfilter_graph_alloc();
1762 AVFilterContext *filt_out = NULL;
1764 int last_w = is->video_st->codec->width;
1765 int last_h = is->video_st->codec->height;
1767 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1769 filt_out = is->out_video_filter;
1773 #if !CONFIG_AVFILTER
1776 AVFilterBufferRef *picref;
1779 while (is->paused && !is->videoq.abort_request)
1782 if ( last_w != is->video_st->codec->width
1783 || last_h != is->video_st->codec->height) {
1784 av_dlog(NULL, "Changing size %dx%d -> %dx%d\n", last_w, last_h,
1785 is->video_st->codec->width, is->video_st->codec->height);
1786 avfilter_graph_free(&graph);
1787 graph = avfilter_graph_alloc();
1788 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1790 filt_out = is->out_video_filter;
1791 last_w = is->video_st->codec->width;
1792 last_h = is->video_st->codec->height;
1794 ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1796 pts_int = picref->pts;
1798 frame->opaque = picref;
1801 if (av_cmp_q(tb, is->video_st->time_base)) {
1802 av_unused int64_t pts1 = pts_int;
1803 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1804 av_dlog(NULL, "video_thread(): "
1805 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1806 tb.num, tb.den, pts1,
1807 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1810 ret = get_video_frame(is, frame, &pts_int, &pkt);
1819 pts = pts_int * av_q2d(is->video_st->time_base);
1822 ret = output_picture2(is, frame, pts, pos);
1824 ret = output_picture2(is, frame, pts, pkt.pos);
1825 av_free_packet(&pkt);
1832 stream_pause(cur_stream);
1836 avfilter_graph_free(&graph);
1842 static int subtitle_thread(void *arg)
1844 VideoState *is = arg;
1846 AVPacket pkt1, *pkt = &pkt1;
1850 int r, g, b, y, u, v, a;
1853 while (is->paused && !is->subtitleq.abort_request) {
1856 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1859 if (pkt->data == flush_pkt.data) {
1860 avcodec_flush_buffers(is->subtitle_st->codec);
1863 SDL_LockMutex(is->subpq_mutex);
1864 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1865 !is->subtitleq.abort_request) {
1866 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1868 SDL_UnlockMutex(is->subpq_mutex);
1870 if (is->subtitleq.abort_request)
1873 sp = &is->subpq[is->subpq_windex];
1875 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1876 this packet, if any */
1878 if (pkt->pts != AV_NOPTS_VALUE)
1879 pts = av_q2d(is->subtitle_st->time_base) * pkt->pts;
1881 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1882 &got_subtitle, pkt);
1884 if (got_subtitle && sp->sub.format == 0) {
1887 for (i = 0; i < sp->sub.num_rects; i++)
1889 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1891 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1892 y = RGB_TO_Y_CCIR(r, g, b);
1893 u = RGB_TO_U_CCIR(r, g, b, 0);
1894 v = RGB_TO_V_CCIR(r, g, b, 0);
1895 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1899 /* now we can update the picture count */
1900 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1901 is->subpq_windex = 0;
1902 SDL_LockMutex(is->subpq_mutex);
1904 SDL_UnlockMutex(is->subpq_mutex);
1906 av_free_packet(pkt);
1911 /* copy samples for viewing in editor window */
1912 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1916 size = samples_size / sizeof(short);
1918 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1921 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1923 is->sample_array_index += len;
1924 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1925 is->sample_array_index = 0;
1930 /* return the new audio buffer size (samples can be added or deleted
1931 to get better sync if video or external master clock) */
1932 static int synchronize_audio(VideoState *is, short *samples,
1933 int samples_size1, double pts)
1935 int n, samples_size;
1938 n = 2 * is->audio_st->codec->channels;
1939 samples_size = samples_size1;
1941 /* if not master, then we try to remove or add samples to correct the clock */
1942 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1943 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1944 double diff, avg_diff;
1945 int wanted_size, min_size, max_size, nb_samples;
1947 ref_clock = get_master_clock(is);
1948 diff = get_audio_clock(is) - ref_clock;
1950 if (diff < AV_NOSYNC_THRESHOLD) {
1951 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1952 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1953 /* not enough measures to have a correct estimate */
1954 is->audio_diff_avg_count++;
1956 /* estimate the A-V difference */
1957 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1959 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1960 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1961 nb_samples = samples_size / n;
1963 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1964 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1965 if (wanted_size < min_size)
1966 wanted_size = min_size;
1967 else if (wanted_size > max_size)
1968 wanted_size = max_size;
1970 /* add or remove samples to correction the synchro */
1971 if (wanted_size < samples_size) {
1972 /* remove samples */
1973 samples_size = wanted_size;
1974 } else if (wanted_size > samples_size) {
1975 uint8_t *samples_end, *q;
1979 nb = (samples_size - wanted_size);
1980 samples_end = (uint8_t *)samples + samples_size - n;
1981 q = samples_end + n;
1983 memcpy(q, samples_end, n);
1987 samples_size = wanted_size;
1990 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1991 diff, avg_diff, samples_size - samples_size1,
1992 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1995 /* too big difference : may be initial PTS errors, so
1997 is->audio_diff_avg_count = 0;
1998 is->audio_diff_cum = 0;
2002 return samples_size;
2005 /* decode one audio frame and returns its uncompressed size */
2006 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2008 AVPacket *pkt_temp = &is->audio_pkt_temp;
2009 AVPacket *pkt = &is->audio_pkt;
2010 AVCodecContext *dec = is->audio_st->codec;
2011 int n, len1, data_size, got_frame;
2014 int flush_complete = 0;
2017 /* NOTE: the audio packet can contain several frames */
2018 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
2020 if (!(is->frame = avcodec_alloc_frame()))
2021 return AVERROR(ENOMEM);
2023 avcodec_get_frame_defaults(is->frame);
2028 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
2030 /* if error, we skip the frame */
2035 pkt_temp->data += len1;
2036 pkt_temp->size -= len1;
2039 /* stop sending empty packets if the decoder is finished */
2040 if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
2044 data_size = av_samples_get_buffer_size(NULL, dec->channels,
2045 is->frame->nb_samples,
2046 dec->sample_fmt, 1);
2048 if (dec->sample_fmt != is->audio_src_fmt) {
2049 if (is->reformat_ctx)
2050 av_audio_convert_free(is->reformat_ctx);
2051 is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2052 dec->sample_fmt, 1, NULL, 0);
2053 if (!is->reformat_ctx) {
2054 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2055 av_get_sample_fmt_name(dec->sample_fmt),
2056 av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2059 is->audio_src_fmt= dec->sample_fmt;
2062 if (is->reformat_ctx) {
2063 const void *ibuf[6] = { is->frame->data[0] };
2065 int istride[6] = { av_get_bytes_per_sample(dec->sample_fmt) };
2066 int ostride[6] = { 2 };
2067 int len= data_size/istride[0];
2068 obuf[0] = av_realloc(is->audio_buf1, FFALIGN(len * ostride[0], 32));
2070 return AVERROR(ENOMEM);
2072 is->audio_buf1 = obuf[0];
2073 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len) < 0) {
2074 printf("av_audio_convert() failed\n");
2077 is->audio_buf = is->audio_buf1;
2078 /* FIXME: existing code assume that data_size equals framesize*channels*2
2079 remove this legacy cruft */
2080 data_size = len * 2;
2082 is->audio_buf = is->frame->data[0];
2085 /* if no pts, then compute it */
2086 pts = is->audio_clock;
2088 n = 2 * dec->channels;
2089 is->audio_clock += (double)data_size /
2090 (double)(n * dec->sample_rate);
2093 static double last_clock;
2094 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2095 is->audio_clock - last_clock,
2096 is->audio_clock, pts);
2097 last_clock = is->audio_clock;
2103 /* free the current packet */
2105 av_free_packet(pkt);
2106 memset(pkt_temp, 0, sizeof(*pkt_temp));
2108 if (is->paused || is->audioq.abort_request) {
2112 /* read next packet */
2113 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
2116 if (pkt->data == flush_pkt.data) {
2117 avcodec_flush_buffers(dec);
2123 /* if update the audio clock with the pts */
2124 if (pkt->pts != AV_NOPTS_VALUE) {
2125 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2130 /* prepare a new audio buffer */
2131 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2133 VideoState *is = opaque;
2134 int audio_size, len1;
2137 audio_callback_time = av_gettime();
2140 if (is->audio_buf_index >= is->audio_buf_size) {
2141 audio_size = audio_decode_frame(is, &pts);
2142 if (audio_size < 0) {
2143 /* if error, just output silence */
2144 is->audio_buf = is->silence_buf;
2145 is->audio_buf_size = sizeof(is->silence_buf);
2148 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2149 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2151 is->audio_buf_size = audio_size;
2153 is->audio_buf_index = 0;
2155 len1 = is->audio_buf_size - is->audio_buf_index;
2158 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2161 is->audio_buf_index += len1;
2165 /* open a given stream. Return 0 if OK */
2166 static int stream_component_open(VideoState *is, int stream_index)
2168 AVFormatContext *ic = is->ic;
2169 AVCodecContext *avctx;
2171 SDL_AudioSpec wanted_spec, spec;
2173 AVDictionaryEntry *t = NULL;
2175 if (stream_index < 0 || stream_index >= ic->nb_streams)
2177 avctx = ic->streams[stream_index]->codec;
2179 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index]);
2181 codec = avcodec_find_decoder(avctx->codec_id);
2182 avctx->debug_mv = debug_mv;
2183 avctx->debug = debug;
2184 avctx->workaround_bugs = workaround_bugs;
2185 avctx->lowres = lowres;
2186 avctx->idct_algo = idct;
2187 avctx->skip_frame = skip_frame;
2188 avctx->skip_idct = skip_idct;
2189 avctx->skip_loop_filter = skip_loop_filter;
2190 avctx->error_concealment = error_concealment;
2192 if (lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2193 if (fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2195 if (!av_dict_get(opts, "threads", NULL, 0))
2196 av_dict_set(&opts, "threads", "auto", 0);
2198 avcodec_open2(avctx, codec, &opts) < 0)
2200 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2201 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2202 return AVERROR_OPTION_NOT_FOUND;
2205 /* prepare audio output */
2206 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2207 wanted_spec.freq = avctx->sample_rate;
2208 wanted_spec.format = AUDIO_S16SYS;
2209 wanted_spec.channels = avctx->channels;
2210 wanted_spec.silence = 0;
2211 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2212 wanted_spec.callback = sdl_audio_callback;
2213 wanted_spec.userdata = is;
2214 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2215 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2218 is->audio_hw_buf_size = spec.size;
2219 is->audio_src_fmt = AV_SAMPLE_FMT_S16;
2222 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2223 switch (avctx->codec_type) {
2224 case AVMEDIA_TYPE_AUDIO:
2225 is->audio_stream = stream_index;
2226 is->audio_st = ic->streams[stream_index];
2227 is->audio_buf_size = 0;
2228 is->audio_buf_index = 0;
2230 /* init averaging filter */
2231 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2232 is->audio_diff_avg_count = 0;
2233 /* since we do not have a precise anough audio fifo fullness,
2234 we correct audio sync only if larger than this threshold */
2235 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2237 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2238 packet_queue_init(&is->audioq);
2241 case AVMEDIA_TYPE_VIDEO:
2242 is->video_stream = stream_index;
2243 is->video_st = ic->streams[stream_index];
2245 packet_queue_init(&is->videoq);
2246 is->video_tid = SDL_CreateThread(video_thread, is);
2248 case AVMEDIA_TYPE_SUBTITLE:
2249 is->subtitle_stream = stream_index;
2250 is->subtitle_st = ic->streams[stream_index];
2251 packet_queue_init(&is->subtitleq);
2253 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2261 static void stream_component_close(VideoState *is, int stream_index)
2263 AVFormatContext *ic = is->ic;
2264 AVCodecContext *avctx;
2266 if (stream_index < 0 || stream_index >= ic->nb_streams)
2268 avctx = ic->streams[stream_index]->codec;
2270 switch (avctx->codec_type) {
2271 case AVMEDIA_TYPE_AUDIO:
2272 packet_queue_abort(&is->audioq);
2276 packet_queue_end(&is->audioq);
2277 av_free_packet(&is->audio_pkt);
2278 if (is->reformat_ctx)
2279 av_audio_convert_free(is->reformat_ctx);
2280 is->reformat_ctx = NULL;
2281 av_freep(&is->audio_buf1);
2282 is->audio_buf = NULL;
2283 av_freep(&is->frame);
2286 av_rdft_end(is->rdft);
2287 av_freep(&is->rdft_data);
2292 case AVMEDIA_TYPE_VIDEO:
2293 packet_queue_abort(&is->videoq);
2295 /* note: we also signal this mutex to make sure we deblock the
2296 video thread in all cases */
2297 SDL_LockMutex(is->pictq_mutex);
2298 SDL_CondSignal(is->pictq_cond);
2299 SDL_UnlockMutex(is->pictq_mutex);
2301 SDL_WaitThread(is->video_tid, NULL);
2303 packet_queue_end(&is->videoq);
2305 case AVMEDIA_TYPE_SUBTITLE:
2306 packet_queue_abort(&is->subtitleq);
2308 /* note: we also signal this mutex to make sure we deblock the
2309 video thread in all cases */
2310 SDL_LockMutex(is->subpq_mutex);
2311 is->subtitle_stream_changed = 1;
2313 SDL_CondSignal(is->subpq_cond);
2314 SDL_UnlockMutex(is->subpq_mutex);
2316 SDL_WaitThread(is->subtitle_tid, NULL);
2318 packet_queue_end(&is->subtitleq);
2324 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2325 avcodec_close(avctx);
2326 switch (avctx->codec_type) {
2327 case AVMEDIA_TYPE_AUDIO:
2328 is->audio_st = NULL;
2329 is->audio_stream = -1;
2331 case AVMEDIA_TYPE_VIDEO:
2332 is->video_st = NULL;
2333 is->video_stream = -1;
2335 case AVMEDIA_TYPE_SUBTITLE:
2336 is->subtitle_st = NULL;
2337 is->subtitle_stream = -1;
2344 /* since we have only one decoding thread, we can use a global
2345 variable instead of a thread local variable */
2346 static VideoState *global_video_state;
2348 static int decode_interrupt_cb(void *ctx)
2350 return global_video_state && global_video_state->abort_request;
2353 /* this thread gets the stream from the disk or the network */
2354 static int decode_thread(void *arg)
2356 VideoState *is = arg;
2357 AVFormatContext *ic = NULL;
2359 int st_index[AVMEDIA_TYPE_NB];
2360 AVPacket pkt1, *pkt = &pkt1;
2362 int pkt_in_play_range = 0;
2363 AVDictionaryEntry *t;
2364 AVDictionary **opts;
2365 int orig_nb_streams;
2367 memset(st_index, -1, sizeof(st_index));
2368 is->video_stream = -1;
2369 is->audio_stream = -1;
2370 is->subtitle_stream = -1;
2372 global_video_state = is;
2374 ic = avformat_alloc_context();
2375 ic->interrupt_callback.callback = decode_interrupt_cb;
2376 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2378 print_error(is->filename, err);
2382 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2383 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2384 ret = AVERROR_OPTION_NOT_FOUND;
2390 ic->flags |= AVFMT_FLAG_GENPTS;
2392 opts = setup_find_stream_info_opts(ic, codec_opts);
2393 orig_nb_streams = ic->nb_streams;
2395 err = avformat_find_stream_info(ic, opts);
2397 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2401 for (i = 0; i < orig_nb_streams; i++)
2402 av_dict_free(&opts[i]);
2406 ic->pb->eof_reached = 0; // FIXME hack, avplay maybe should not use url_feof() to test for the end
2408 if (seek_by_bytes < 0)
2409 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2411 /* if seeking requested, we execute it */
2412 if (start_time != AV_NOPTS_VALUE) {
2415 timestamp = start_time;
2416 /* add the stream start time */
2417 if (ic->start_time != AV_NOPTS_VALUE)
2418 timestamp += ic->start_time;
2419 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2421 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2422 is->filename, (double)timestamp / AV_TIME_BASE);
2426 for (i = 0; i < ic->nb_streams; i++)
2427 ic->streams[i]->discard = AVDISCARD_ALL;
2429 st_index[AVMEDIA_TYPE_VIDEO] =
2430 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2431 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2433 st_index[AVMEDIA_TYPE_AUDIO] =
2434 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2435 wanted_stream[AVMEDIA_TYPE_AUDIO],
2436 st_index[AVMEDIA_TYPE_VIDEO],
2439 st_index[AVMEDIA_TYPE_SUBTITLE] =
2440 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2441 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2442 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2443 st_index[AVMEDIA_TYPE_AUDIO] :
2444 st_index[AVMEDIA_TYPE_VIDEO]),
2447 av_dump_format(ic, 0, is->filename, 0);
2450 /* open the streams */
2451 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2452 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2456 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2457 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2459 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2461 if (!display_disable)
2465 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2466 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2469 if (is->video_stream < 0 && is->audio_stream < 0) {
2470 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2476 if (is->abort_request)
2478 if (is->paused != is->last_paused) {
2479 is->last_paused = is->paused;
2481 is->read_pause_return = av_read_pause(ic);
2485 #if CONFIG_RTSP_DEMUXER
2486 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2487 /* wait 10 ms to avoid trying to get another packet */
2494 int64_t seek_target = is->seek_pos;
2495 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2496 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2497 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2498 // of the seek_pos/seek_rel variables
2500 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2502 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2504 if (is->audio_stream >= 0) {
2505 packet_queue_flush(&is->audioq);
2506 packet_queue_put(&is->audioq, &flush_pkt);
2508 if (is->subtitle_stream >= 0) {
2509 packet_queue_flush(&is->subtitleq);
2510 packet_queue_put(&is->subtitleq, &flush_pkt);
2512 if (is->video_stream >= 0) {
2513 packet_queue_flush(&is->videoq);
2514 packet_queue_put(&is->videoq, &flush_pkt);
2521 /* if the queue are full, no need to read more */
2522 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2523 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream < 0)
2524 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0)
2525 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0))) {
2531 if (is->video_stream >= 0) {
2532 av_init_packet(pkt);
2535 pkt->stream_index = is->video_stream;
2536 packet_queue_put(&is->videoq, pkt);
2538 if (is->audio_stream >= 0 &&
2539 is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
2540 av_init_packet(pkt);
2543 pkt->stream_index = is->audio_stream;
2544 packet_queue_put(&is->audioq, pkt);
2547 if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) {
2548 if (loop != 1 && (!loop || --loop)) {
2549 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2550 } else if (autoexit) {
2557 ret = av_read_frame(ic, pkt);
2559 if (ret == AVERROR_EOF || (ic->pb && ic->pb->eof_reached))
2561 if (ic->pb && ic->pb->error)
2563 SDL_Delay(100); /* wait for user event */
2566 /* check if packet is in play range specified by user, then queue, otherwise discard */
2567 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2568 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2569 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2570 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2571 <= ((double)duration / 1000000);
2572 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2573 packet_queue_put(&is->audioq, pkt);
2574 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2575 packet_queue_put(&is->videoq, pkt);
2576 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2577 packet_queue_put(&is->subtitleq, pkt);
2579 av_free_packet(pkt);
2582 /* wait until the end */
2583 while (!is->abort_request) {
2589 /* disable interrupting */
2590 global_video_state = NULL;
2592 /* close each stream */
2593 if (is->audio_stream >= 0)
2594 stream_component_close(is, is->audio_stream);
2595 if (is->video_stream >= 0)
2596 stream_component_close(is, is->video_stream);
2597 if (is->subtitle_stream >= 0)
2598 stream_component_close(is, is->subtitle_stream);
2600 avformat_close_input(&is->ic);
2606 event.type = FF_QUIT_EVENT;
2607 event.user.data1 = is;
2608 SDL_PushEvent(&event);
2613 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2617 is = av_mallocz(sizeof(VideoState));
2620 av_strlcpy(is->filename, filename, sizeof(is->filename));
2621 is->iformat = iformat;
2625 /* start video display */
2626 is->pictq_mutex = SDL_CreateMutex();
2627 is->pictq_cond = SDL_CreateCond();
2629 is->subpq_mutex = SDL_CreateMutex();
2630 is->subpq_cond = SDL_CreateCond();
2632 is->av_sync_type = av_sync_type;
2633 is->parse_tid = SDL_CreateThread(decode_thread, is);
2634 if (!is->parse_tid) {
2641 static void stream_cycle_channel(VideoState *is, int codec_type)
2643 AVFormatContext *ic = is->ic;
2644 int start_index, stream_index;
2647 if (codec_type == AVMEDIA_TYPE_VIDEO)
2648 start_index = is->video_stream;
2649 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2650 start_index = is->audio_stream;
2652 start_index = is->subtitle_stream;
2653 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2655 stream_index = start_index;
2657 if (++stream_index >= is->ic->nb_streams)
2659 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2666 if (stream_index == start_index)
2668 st = ic->streams[stream_index];
2669 if (st->codec->codec_type == codec_type) {
2670 /* check that parameters are OK */
2671 switch (codec_type) {
2672 case AVMEDIA_TYPE_AUDIO:
2673 if (st->codec->sample_rate != 0 &&
2674 st->codec->channels != 0)
2677 case AVMEDIA_TYPE_VIDEO:
2678 case AVMEDIA_TYPE_SUBTITLE:
2686 stream_component_close(is, start_index);
2687 stream_component_open(is, stream_index);
2691 static void toggle_full_screen(void)
2693 is_full_screen = !is_full_screen;
2694 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2695 /* OS X needs to empty the picture_queue */
2696 for (int i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
2697 cur_stream->pictq[i].reallocate = 1;
2700 video_open(cur_stream);
2703 static void toggle_pause(void)
2706 stream_pause(cur_stream);
2710 static void step_to_next_frame(void)
2713 /* if the stream is paused unpause it, then step */
2714 if (cur_stream->paused)
2715 stream_pause(cur_stream);
2720 static void toggle_audio_display(void)
2723 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2724 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2725 fill_rectangle(screen,
2726 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2728 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2732 /* handle an event sent by the GUI */
2733 static void event_loop(void)
2736 double incr, pos, frac;
2740 SDL_WaitEvent(&event);
2741 switch (event.type) {
2743 if (exit_on_keydown) {
2747 switch (event.key.keysym.sym) {
2753 toggle_full_screen();
2759 case SDLK_s: // S: Step to next frame
2760 step_to_next_frame();
2764 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2768 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2772 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2775 toggle_audio_display();
2790 if (seek_by_bytes) {
2791 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) {
2792 pos = cur_stream->video_current_pos;
2793 } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) {
2794 pos = cur_stream->audio_pkt.pos;
2796 pos = avio_tell(cur_stream->ic->pb);
2797 if (cur_stream->ic->bit_rate)
2798 incr *= cur_stream->ic->bit_rate / 8.0;
2802 stream_seek(cur_stream, pos, incr, 1);
2804 pos = get_master_clock(cur_stream);
2806 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2814 case SDL_MOUSEBUTTONDOWN:
2815 if (exit_on_mousedown) {
2819 case SDL_MOUSEMOTION:
2820 if (event.type == SDL_MOUSEBUTTONDOWN) {
2823 if (event.motion.state != SDL_PRESSED)
2828 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
2829 uint64_t size = avio_size(cur_stream->ic->pb);
2830 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2834 int tns, thh, tmm, tss;
2835 tns = cur_stream->ic->duration / 1000000LL;
2837 tmm = (tns % 3600) / 60;
2839 frac = x / cur_stream->width;
2842 mm = (ns % 3600) / 60;
2844 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2845 hh, mm, ss, thh, tmm, tss);
2846 ts = frac * cur_stream->ic->duration;
2847 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2848 ts += cur_stream->ic->start_time;
2849 stream_seek(cur_stream, ts, 0, 0);
2853 case SDL_VIDEORESIZE:
2855 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2856 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2857 screen_width = cur_stream->width = event.resize.w;
2858 screen_height = cur_stream->height = event.resize.h;
2865 case FF_ALLOC_EVENT:
2866 video_open(event.user.data1);
2867 alloc_picture(event.user.data1);
2869 case FF_REFRESH_EVENT:
2870 video_refresh_timer(event.user.data1);
2871 cur_stream->refresh = 0;
2879 static int opt_frame_size(const char *opt, const char *arg)
2881 av_log(NULL, AV_LOG_ERROR,
2882 "Option '%s' has been removed, use private format options instead\n", opt);
2883 return AVERROR(EINVAL);
2886 static int opt_width(const char *opt, const char *arg)
2888 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2892 static int opt_height(const char *opt, const char *arg)
2894 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2898 static int opt_format(const char *opt, const char *arg)
2900 file_iformat = av_find_input_format(arg);
2901 if (!file_iformat) {
2902 fprintf(stderr, "Unknown input format: %s\n", arg);
2903 return AVERROR(EINVAL);
2908 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2910 av_log(NULL, AV_LOG_ERROR,
2911 "Option '%s' has been removed, use private format options instead\n", opt);
2912 return AVERROR(EINVAL);
2915 static int opt_sync(const char *opt, const char *arg)
2917 if (!strcmp(arg, "audio"))
2918 av_sync_type = AV_SYNC_AUDIO_MASTER;
2919 else if (!strcmp(arg, "video"))
2920 av_sync_type = AV_SYNC_VIDEO_MASTER;
2921 else if (!strcmp(arg, "ext"))
2922 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2924 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2930 static int opt_seek(const char *opt, const char *arg)
2932 start_time = parse_time_or_die(opt, arg, 1);
2936 static int opt_duration(const char *opt, const char *arg)
2938 duration = parse_time_or_die(opt, arg, 1);
2942 static int opt_debug(const char *opt, const char *arg)
2944 av_log_set_level(99);
2945 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2949 static int opt_vismv(const char *opt, const char *arg)
2951 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2955 static const OptionDef options[] = {
2956 #include "cmdutils_common_opts.h"
2957 { "x", HAS_ARG, { (void*)opt_width }, "force displayed width", "width" },
2958 { "y", HAS_ARG, { (void*)opt_height }, "force displayed height", "height" },
2959 { "s", HAS_ARG | OPT_VIDEO, { (void*)opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
2960 { "fs", OPT_BOOL, { (void*)&is_full_screen }, "force full screen" },
2961 { "an", OPT_BOOL, { (void*)&audio_disable }, "disable audio" },
2962 { "vn", OPT_BOOL, { (void*)&video_disable }, "disable video" },
2963 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
2964 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
2965 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
2966 { "ss", HAS_ARG, { (void*)&opt_seek }, "seek to a given position in seconds", "pos" },
2967 { "t", HAS_ARG, { (void*)&opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
2968 { "bytes", OPT_INT | HAS_ARG, { (void*)&seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
2969 { "nodisp", OPT_BOOL, { (void*)&display_disable }, "disable graphical display" },
2970 { "f", HAS_ARG, { (void*)opt_format }, "force format", "fmt" },
2971 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { (void*)opt_frame_pix_fmt }, "set pixel format", "format" },
2972 { "stats", OPT_BOOL | OPT_EXPERT, { (void*)&show_status }, "show status", "" },
2973 { "debug", HAS_ARG | OPT_EXPERT, { (void*)opt_debug }, "print specific debug info", "" },
2974 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&workaround_bugs }, "workaround bugs", "" },
2975 { "vismv", HAS_ARG | OPT_EXPERT, { (void*)opt_vismv }, "visualize motion vectors", "" },
2976 { "fast", OPT_BOOL | OPT_EXPERT, { (void*)&fast }, "non spec compliant optimizations", "" },
2977 { "genpts", OPT_BOOL | OPT_EXPERT, { (void*)&genpts }, "generate pts", "" },
2978 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2979 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&lowres }, "", "" },
2980 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_loop_filter }, "", "" },
2981 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_frame }, "", "" },
2982 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_idct }, "", "" },
2983 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&idct }, "set idct algo", "algo" },
2984 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&error_concealment }, "set error concealment options", "bit_mask" },
2985 { "sync", HAS_ARG | OPT_EXPERT, { (void*)opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
2986 { "autoexit", OPT_BOOL | OPT_EXPERT, { (void*)&autoexit }, "exit at the end", "" },
2987 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_keydown }, "exit on key down", "" },
2988 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_mousedown }, "exit on mouse down", "" },
2989 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&loop }, "set number of times the playback shall be looped", "loop count" },
2990 { "framedrop", OPT_BOOL | OPT_EXPERT, { (void*)&framedrop }, "drop frames when cpu is too slow", "" },
2991 { "window_title", OPT_STRING | HAS_ARG, { (void*)&window_title }, "set window title", "window title" },
2993 { "vf", OPT_STRING | HAS_ARG, { (void*)&vfilters }, "video filters", "filter list" },
2995 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { (void*)&rdftspeed }, "rdft speed", "msecs" },
2996 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { (void*)opt_default }, "generic catch all option", "" },
2997 { "i", 0, { NULL }, "avconv compatibility dummy option", ""},
3001 static void show_usage(void)
3003 printf("Simple media player\n");
3004 printf("usage: %s [options] input_file\n", program_name);
3008 static void show_help(void)
3010 av_log_set_callback(log_callback_help);
3012 show_help_options(options, "Main options:\n",
3014 show_help_options(options, "\nAdvanced options:\n",
3015 OPT_EXPERT, OPT_EXPERT);
3017 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3018 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3019 #if !CONFIG_AVFILTER
3020 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3022 printf("\nWhile playing:\n"
3024 "f toggle full screen\n"
3026 "a cycle audio channel\n"
3027 "v cycle video channel\n"
3028 "t cycle subtitle channel\n"
3029 "w show audio waves\n"
3030 "s activate frame-step mode\n"
3031 "left/right seek backward/forward 10 seconds\n"
3032 "down/up seek backward/forward 1 minute\n"
3033 "mouse click seek to percentage in file corresponding to fraction of width\n"
3037 static void opt_input_file(void *optctx, const char *filename)
3039 if (input_filename) {
3040 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3041 filename, input_filename);
3044 if (!strcmp(filename, "-"))
3046 input_filename = filename;
3049 /* Called from the main */
3050 int main(int argc, char **argv)
3054 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3055 parse_loglevel(argc, argv, options);
3057 /* register all codecs, demux and protocols */
3058 avcodec_register_all();
3060 avdevice_register_all();
3063 avfilter_register_all();
3066 avformat_network_init();
3072 parse_options(NULL, argc, argv, options, opt_input_file);
3074 if (!input_filename) {
3076 fprintf(stderr, "An input file must be specified\n");
3077 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3081 if (display_disable) {
3084 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3085 #if !defined(__MINGW32__) && !defined(__APPLE__)
3086 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3088 if (SDL_Init (flags)) {
3089 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3093 if (!display_disable) {
3094 #if HAVE_SDL_VIDEO_SIZE
3095 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3096 fs_screen_width = vi->current_w;
3097 fs_screen_height = vi->current_h;
3101 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3102 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3103 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3105 av_init_packet(&flush_pkt);
3106 flush_pkt.data = "FLUSH";
3108 cur_stream = stream_open(input_filename, file_iformat);