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 "libavutil/time.h"
35 #include "libavformat/avformat.h"
36 #include "libavdevice/avdevice.h"
37 #include "libswscale/swscale.h"
38 #include "libavresample/avresample.h"
39 #include "libavutil/opt.h"
40 #include "libavcodec/avfft.h"
43 # include "libavfilter/avfilter.h"
44 # include "libavfilter/avfiltergraph.h"
45 # include "libavfilter/buffersink.h"
46 # include "libavfilter/buffersrc.h"
52 #include <SDL_thread.h>
55 #undef main /* We don't want SDL to override our main() */
60 const char program_name[] = "avplay";
61 const int program_birth_year = 2003;
63 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
64 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
67 /* SDL audio buffer size, in samples. Should be small to have precise
68 A/V sync as SDL does not have hardware buffer fullness info. */
69 #define SDL_AUDIO_BUFFER_SIZE 1024
71 /* no AV sync correction is done if below the AV sync threshold */
72 #define AV_SYNC_THRESHOLD 0.01
73 /* no AV correction is done if too big error */
74 #define AV_NOSYNC_THRESHOLD 10.0
76 #define FRAME_SKIP_FACTOR 0.05
78 /* maximum audio speed change to get correct sync */
79 #define SAMPLE_CORRECTION_PERCENT_MAX 10
81 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
82 #define AUDIO_DIFF_AVG_NB 20
84 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
85 #define SAMPLE_ARRAY_SIZE (2 * 65536)
87 static int sws_flags = SWS_BICUBIC;
89 typedef struct PacketQueue {
90 AVPacketList *first_pkt, *last_pkt;
98 #define VIDEO_PICTURE_QUEUE_SIZE 2
99 #define SUBPICTURE_QUEUE_SIZE 4
101 typedef struct VideoPicture {
102 double pts; ///< presentation time stamp for this picture
103 double target_clock; ///< av_gettime() time at which this should be displayed ideally
104 int64_t pos; ///< byte position in file
106 int width, height; /* source height & width */
109 enum PixelFormat pix_fmt;
112 AVFilterBufferRef *picref;
116 typedef struct SubPicture {
117 double pts; /* presentation time stamp for this picture */
122 AV_SYNC_AUDIO_MASTER, /* default choice */
123 AV_SYNC_VIDEO_MASTER,
124 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
127 typedef struct VideoState {
128 SDL_Thread *parse_tid;
129 SDL_Thread *video_tid;
130 SDL_Thread *refresh_tid;
131 AVInputFormat *iformat;
140 int read_pause_return;
146 double external_clock; /* external clock base */
147 int64_t external_clock_time;
150 double audio_diff_cum; /* used for AV difference average computation */
151 double audio_diff_avg_coef;
152 double audio_diff_threshold;
153 int audio_diff_avg_count;
156 int audio_hw_buf_size;
157 uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
160 unsigned int audio_buf_size; /* in bytes */
161 int audio_buf_index; /* in bytes */
162 AVPacket audio_pkt_temp;
164 enum AVSampleFormat sdl_sample_fmt;
165 uint64_t sdl_channel_layout;
167 enum AVSampleFormat resample_sample_fmt;
168 uint64_t resample_channel_layout;
169 AVAudioResampleContext *avr;
172 int show_audio; /* if true, display audio samples */
173 int16_t sample_array[SAMPLE_ARRAY_SIZE];
174 int sample_array_index;
178 FFTSample *rdft_data;
181 SDL_Thread *subtitle_tid;
183 int subtitle_stream_changed;
184 AVStream *subtitle_st;
185 PacketQueue subtitleq;
186 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
187 int subpq_size, subpq_rindex, subpq_windex;
188 SDL_mutex *subpq_mutex;
189 SDL_cond *subpq_cond;
192 double frame_last_pts;
193 double frame_last_delay;
194 double video_clock; ///< pts of last decoded frame / predicted pts of next decoded frame
198 double video_current_pts; ///< current displayed pts (different from video_clock if frame fifos are used)
199 double video_current_pts_drift; ///< video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
200 int64_t video_current_pos; ///< current displayed file pos
201 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
202 int pictq_size, pictq_rindex, pictq_windex;
203 SDL_mutex *pictq_mutex;
204 SDL_cond *pictq_cond;
206 struct SwsContext *img_convert_ctx;
209 // QETimer *video_timer;
211 int width, height, xleft, ytop;
213 PtsCorrectionContext pts_ctx;
216 AVFilterContext *in_video_filter; ///< the first filter in the video chain
217 AVFilterContext *out_video_filter; ///< the last filter in the video chain
219 FrameBuffer *buffer_pool;
223 float skip_frames_index;
227 static void show_help(void);
229 /* options specified by the user */
230 static AVInputFormat *file_iformat;
231 static const char *input_filename;
232 static const char *window_title;
233 static int fs_screen_width;
234 static int fs_screen_height;
235 static int screen_width = 0;
236 static int screen_height = 0;
237 static int audio_disable;
238 static int video_disable;
239 static int wanted_stream[AVMEDIA_TYPE_NB] = {
240 [AVMEDIA_TYPE_AUDIO] = -1,
241 [AVMEDIA_TYPE_VIDEO] = -1,
242 [AVMEDIA_TYPE_SUBTITLE] = -1,
244 static int seek_by_bytes = -1;
245 static int display_disable;
246 static int show_status = 1;
247 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
248 static int64_t start_time = AV_NOPTS_VALUE;
249 static int64_t duration = AV_NOPTS_VALUE;
250 static int debug = 0;
251 static int debug_mv = 0;
253 static int workaround_bugs = 1;
255 static int genpts = 0;
256 static int idct = FF_IDCT_AUTO;
257 static enum AVDiscard skip_frame = AVDISCARD_DEFAULT;
258 static enum AVDiscard skip_idct = AVDISCARD_DEFAULT;
259 static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT;
260 static int error_concealment = 3;
261 static int decoder_reorder_pts = -1;
263 static int exit_on_keydown;
264 static int exit_on_mousedown;
266 static int framedrop = 1;
267 static int infinite_buffer = 0;
269 static int rdftspeed = 20;
271 static char *vfilters = NULL;
274 /* current context */
275 static int is_full_screen;
276 static VideoState *cur_stream;
277 static int64_t audio_callback_time;
279 static AVPacket flush_pkt;
281 #define FF_ALLOC_EVENT (SDL_USEREVENT)
282 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
283 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
285 static SDL_Surface *screen;
287 void exit_program(int ret)
292 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
294 /* packet queue handling */
295 static void packet_queue_init(PacketQueue *q)
297 memset(q, 0, sizeof(PacketQueue));
298 q->mutex = SDL_CreateMutex();
299 q->cond = SDL_CreateCond();
300 packet_queue_put(q, &flush_pkt);
303 static void packet_queue_flush(PacketQueue *q)
305 AVPacketList *pkt, *pkt1;
307 SDL_LockMutex(q->mutex);
308 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
310 av_free_packet(&pkt->pkt);
317 SDL_UnlockMutex(q->mutex);
320 static void packet_queue_end(PacketQueue *q)
322 packet_queue_flush(q);
323 SDL_DestroyMutex(q->mutex);
324 SDL_DestroyCond(q->cond);
327 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
331 /* duplicate the packet */
332 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
335 pkt1 = av_malloc(sizeof(AVPacketList));
342 SDL_LockMutex(q->mutex);
348 q->last_pkt->next = pkt1;
351 q->size += pkt1->pkt.size + sizeof(*pkt1);
352 /* XXX: should duplicate packet data in DV case */
353 SDL_CondSignal(q->cond);
355 SDL_UnlockMutex(q->mutex);
359 static void packet_queue_abort(PacketQueue *q)
361 SDL_LockMutex(q->mutex);
363 q->abort_request = 1;
365 SDL_CondSignal(q->cond);
367 SDL_UnlockMutex(q->mutex);
370 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
371 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
376 SDL_LockMutex(q->mutex);
379 if (q->abort_request) {
386 q->first_pkt = pkt1->next;
390 q->size -= pkt1->pkt.size + sizeof(*pkt1);
399 SDL_CondWait(q->cond, q->mutex);
402 SDL_UnlockMutex(q->mutex);
406 static inline void fill_rectangle(SDL_Surface *screen,
407 int x, int y, int w, int h, int color)
414 SDL_FillRect(screen, &rect, color);
417 #define ALPHA_BLEND(a, oldp, newp, s)\
418 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
420 #define RGBA_IN(r, g, b, a, s)\
422 unsigned int v = ((const uint32_t *)(s))[0];\
423 a = (v >> 24) & 0xff;\
424 r = (v >> 16) & 0xff;\
425 g = (v >> 8) & 0xff;\
429 #define YUVA_IN(y, u, v, a, s, pal)\
431 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
432 a = (val >> 24) & 0xff;\
433 y = (val >> 16) & 0xff;\
434 u = (val >> 8) & 0xff;\
438 #define YUVA_OUT(d, y, u, v, a)\
440 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
446 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
448 int wrap, wrap3, width2, skip2;
449 int y, u, v, a, u1, v1, a1, w, h;
450 uint8_t *lum, *cb, *cr;
453 int dstx, dsty, dstw, dsth;
455 dstw = av_clip(rect->w, 0, imgw);
456 dsth = av_clip(rect->h, 0, imgh);
457 dstx = av_clip(rect->x, 0, imgw - dstw);
458 dsty = av_clip(rect->y, 0, imgh - dsth);
459 lum = dst->data[0] + dsty * dst->linesize[0];
460 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
461 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
463 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
465 wrap = dst->linesize[0];
466 wrap3 = rect->pict.linesize[0];
467 p = rect->pict.data[0];
468 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
476 YUVA_IN(y, u, v, a, p, pal);
477 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
478 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
479 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
485 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
486 YUVA_IN(y, u, v, a, p, pal);
490 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
492 YUVA_IN(y, u, v, a, p + BPP, pal);
496 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
497 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
498 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
505 YUVA_IN(y, u, v, a, p, pal);
506 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
507 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
508 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
512 p += wrap3 - dstw * BPP;
513 lum += wrap - dstw - dstx;
514 cb += dst->linesize[1] - width2 - skip2;
515 cr += dst->linesize[2] - width2 - skip2;
517 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
523 YUVA_IN(y, u, v, a, p, pal);
527 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
530 YUVA_IN(y, u, v, a, p, pal);
534 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
535 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
536 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
542 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
543 YUVA_IN(y, u, v, a, p, pal);
547 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
549 YUVA_IN(y, u, v, a, p + BPP, pal);
553 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
557 YUVA_IN(y, u, v, a, p, pal);
561 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
563 YUVA_IN(y, u, v, a, p + BPP, pal);
567 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
569 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
570 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
574 p += -wrap3 + 2 * BPP;
578 YUVA_IN(y, u, v, a, p, pal);
582 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
585 YUVA_IN(y, u, v, a, p, pal);
589 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
590 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
591 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
597 p += wrap3 + (wrap3 - dstw * BPP);
598 lum += wrap + (wrap - dstw - dstx);
599 cb += dst->linesize[1] - width2 - skip2;
600 cr += dst->linesize[2] - width2 - skip2;
602 /* handle odd height */
609 YUVA_IN(y, u, v, a, p, pal);
610 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
611 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
612 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
618 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
619 YUVA_IN(y, u, v, a, p, pal);
623 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
625 YUVA_IN(y, u, v, a, p + BPP, pal);
629 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
630 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
631 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
638 YUVA_IN(y, u, v, a, p, pal);
639 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
640 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
641 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
646 static void free_subpicture(SubPicture *sp)
648 avsubtitle_free(&sp->sub);
651 static void video_image_display(VideoState *is)
657 int width, height, x, y;
661 vp = &is->pictq[is->pictq_rindex];
664 if (vp->picref->video->pixel_aspect.num == 0)
667 aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
670 /* XXX: use variable in the frame */
671 if (is->video_st->sample_aspect_ratio.num)
672 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
673 else if (is->video_st->codec->sample_aspect_ratio.num)
674 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
678 if (aspect_ratio <= 0.0)
680 aspect_ratio *= (float)vp->width / (float)vp->height;
684 if (is->subpq_size > 0)
686 sp = &is->subpq[is->subpq_rindex];
688 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
690 SDL_LockYUVOverlay (vp->bmp);
692 pict.data[0] = vp->bmp->pixels[0];
693 pict.data[1] = vp->bmp->pixels[2];
694 pict.data[2] = vp->bmp->pixels[1];
696 pict.linesize[0] = vp->bmp->pitches[0];
697 pict.linesize[1] = vp->bmp->pitches[2];
698 pict.linesize[2] = vp->bmp->pitches[1];
700 for (i = 0; i < sp->sub.num_rects; i++)
701 blend_subrect(&pict, sp->sub.rects[i],
702 vp->bmp->w, vp->bmp->h);
704 SDL_UnlockYUVOverlay (vp->bmp);
710 /* XXX: we suppose the screen has a 1.0 pixel ratio */
712 width = ((int)rint(height * aspect_ratio)) & ~1;
713 if (width > is->width) {
715 height = ((int)rint(width / aspect_ratio)) & ~1;
717 x = (is->width - width) / 2;
718 y = (is->height - height) / 2;
719 is->no_background = 0;
720 rect.x = is->xleft + x;
721 rect.y = is->ytop + y;
724 SDL_DisplayYUVOverlay(vp->bmp, &rect);
728 /* get the current audio output buffer size, in samples. With SDL, we
729 cannot have a precise information */
730 static int audio_write_get_buf_size(VideoState *is)
732 return is->audio_buf_size - is->audio_buf_index;
735 static inline int compute_mod(int a, int b)
744 static void video_audio_display(VideoState *s)
746 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
747 int ch, channels, h, h2, bgcolor, fgcolor;
749 int rdft_bits, nb_freq;
751 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
753 nb_freq = 1 << (rdft_bits - 1);
755 /* compute display index : center on currently output samples */
756 channels = s->sdl_channels;
757 nb_display_channels = channels;
759 int data_used = s->show_audio == 1 ? s->width : (2 * nb_freq);
761 delay = audio_write_get_buf_size(s);
764 /* to be more precise, we take into account the time spent since
765 the last buffer computation */
766 if (audio_callback_time) {
767 time_diff = av_gettime() - audio_callback_time;
768 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
771 delay += 2 * data_used;
772 if (delay < data_used)
775 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
776 if (s->show_audio == 1) {
778 for (i = 0; i < 1000; i += channels) {
779 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
780 int a = s->sample_array[idx];
781 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
782 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
783 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
785 if (h < score && (b ^ c) < 0) {
792 s->last_i_start = i_start;
794 i_start = s->last_i_start;
797 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
798 if (s->show_audio == 1) {
799 fill_rectangle(screen,
800 s->xleft, s->ytop, s->width, s->height,
803 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
805 /* total height for one channel */
806 h = s->height / nb_display_channels;
807 /* graph height / 2 */
809 for (ch = 0; ch < nb_display_channels; ch++) {
811 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
812 for (x = 0; x < s->width; x++) {
813 y = (s->sample_array[i] * h2) >> 15;
820 fill_rectangle(screen,
821 s->xleft + x, ys, 1, y,
824 if (i >= SAMPLE_ARRAY_SIZE)
825 i -= SAMPLE_ARRAY_SIZE;
829 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
831 for (ch = 1; ch < nb_display_channels; ch++) {
832 y = s->ytop + ch * h;
833 fill_rectangle(screen,
834 s->xleft, y, s->width, 1,
837 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
839 nb_display_channels= FFMIN(nb_display_channels, 2);
840 if (rdft_bits != s->rdft_bits) {
841 av_rdft_end(s->rdft);
842 av_free(s->rdft_data);
843 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
844 s->rdft_bits = rdft_bits;
845 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
849 for (ch = 0; ch < nb_display_channels; ch++) {
850 data[ch] = s->rdft_data + 2 * nb_freq * ch;
852 for (x = 0; x < 2 * nb_freq; x++) {
853 double w = (x-nb_freq) * (1.0 / nb_freq);
854 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
856 if (i >= SAMPLE_ARRAY_SIZE)
857 i -= SAMPLE_ARRAY_SIZE;
859 av_rdft_calc(s->rdft, data[ch]);
861 // least efficient way to do this, we should of course directly access it but its more than fast enough
862 for (y = 0; y < s->height; y++) {
863 double w = 1 / sqrt(nb_freq);
864 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]));
865 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
866 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
869 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
871 fill_rectangle(screen,
872 s->xpos, s->height-y, 1, 1,
876 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
878 if (s->xpos >= s->width)
883 static int video_open(VideoState *is)
885 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
888 if (is_full_screen) flags |= SDL_FULLSCREEN;
889 else flags |= SDL_RESIZABLE;
891 if (is_full_screen && fs_screen_width) {
893 h = fs_screen_height;
894 } else if (!is_full_screen && screen_width) {
898 } else if (is->out_video_filter && is->out_video_filter->inputs[0]) {
899 w = is->out_video_filter->inputs[0]->w;
900 h = is->out_video_filter->inputs[0]->h;
902 } else if (is->video_st && is->video_st->codec->width) {
903 w = is->video_st->codec->width;
904 h = is->video_st->codec->height;
910 if (screen && is->width == screen->w && screen->w == w
911 && is->height== screen->h && screen->h == h)
914 #if defined(__APPLE__) && !SDL_VERSION_ATLEAST(1, 2, 14)
915 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X and older SDL */
916 screen = SDL_SetVideoMode(w, h, 24, flags);
918 screen = SDL_SetVideoMode(w, h, 0, flags);
921 fprintf(stderr, "SDL: could not set video mode - exiting\n");
925 window_title = input_filename;
926 SDL_WM_SetCaption(window_title, window_title);
928 is->width = screen->w;
929 is->height = screen->h;
934 /* display the current picture, if any */
935 static void video_display(VideoState *is)
938 video_open(cur_stream);
939 if (is->audio_st && is->show_audio)
940 video_audio_display(is);
941 else if (is->video_st)
942 video_image_display(is);
945 static int refresh_thread(void *opaque)
947 VideoState *is= opaque;
948 while (!is->abort_request) {
950 event.type = FF_REFRESH_EVENT;
951 event.user.data1 = opaque;
954 SDL_PushEvent(&event);
956 av_usleep(is->audio_st && is->show_audio ? rdftspeed * 1000 : 5000); // FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
961 /* get the current audio clock value */
962 static double get_audio_clock(VideoState *is)
965 int hw_buf_size, bytes_per_sec;
966 pts = is->audio_clock;
967 hw_buf_size = audio_write_get_buf_size(is);
970 bytes_per_sec = is->audio_st->codec->sample_rate * is->sdl_channels *
971 av_get_bytes_per_sample(is->sdl_sample_fmt);
974 pts -= (double)hw_buf_size / bytes_per_sec;
978 /* get the current video clock value */
979 static double get_video_clock(VideoState *is)
982 return is->video_current_pts;
984 return is->video_current_pts_drift + av_gettime() / 1000000.0;
988 /* get the current external clock value */
989 static double get_external_clock(VideoState *is)
993 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
996 /* get the current master clock value */
997 static double get_master_clock(VideoState *is)
1001 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1003 val = get_video_clock(is);
1005 val = get_audio_clock(is);
1006 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1008 val = get_audio_clock(is);
1010 val = get_video_clock(is);
1012 val = get_external_clock(is);
1017 /* seek in the stream */
1018 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1020 if (!is->seek_req) {
1023 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1025 is->seek_flags |= AVSEEK_FLAG_BYTE;
1030 /* pause or resume the video */
1031 static void stream_pause(VideoState *is)
1034 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1035 if (is->read_pause_return != AVERROR(ENOSYS)) {
1036 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1038 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1040 is->paused = !is->paused;
1043 static double compute_target_time(double frame_current_pts, VideoState *is)
1045 double delay, sync_threshold, diff;
1047 /* compute nominal delay */
1048 delay = frame_current_pts - is->frame_last_pts;
1049 if (delay <= 0 || delay >= 10.0) {
1050 /* if incorrect delay, use previous one */
1051 delay = is->frame_last_delay;
1053 is->frame_last_delay = delay;
1055 is->frame_last_pts = frame_current_pts;
1057 /* update delay to follow master synchronisation source */
1058 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1059 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1060 /* if video is slave, we try to correct big delays by
1061 duplicating or deleting a frame */
1062 diff = get_video_clock(is) - get_master_clock(is);
1064 /* skip or repeat frame. We take into account the
1065 delay to compute the threshold. I still don't know
1066 if it is the best guess */
1067 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1068 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1069 if (diff <= -sync_threshold)
1071 else if (diff >= sync_threshold)
1075 is->frame_timer += delay;
1077 av_dlog(NULL, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
1078 delay, frame_current_pts, -diff);
1080 return is->frame_timer;
1083 /* called to display each frame */
1084 static void video_refresh_timer(void *opaque)
1086 VideoState *is = opaque;
1089 SubPicture *sp, *sp2;
1093 if (is->pictq_size == 0) {
1094 // nothing to do, no picture to display in the que
1096 double time = av_gettime() / 1000000.0;
1098 /* dequeue the picture */
1099 vp = &is->pictq[is->pictq_rindex];
1101 if (time < vp->target_clock)
1103 /* update current video pts */
1104 is->video_current_pts = vp->pts;
1105 is->video_current_pts_drift = is->video_current_pts - time;
1106 is->video_current_pos = vp->pos;
1107 if (is->pictq_size > 1) {
1108 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1109 assert(nextvp->target_clock >= vp->target_clock);
1110 next_target= nextvp->target_clock;
1112 next_target = vp->target_clock + is->video_clock - vp->pts; // FIXME pass durations cleanly
1114 if (framedrop && time > next_target) {
1115 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1116 if (is->pictq_size > 1 || time > next_target + 0.5) {
1117 /* update queue size and signal for next picture */
1118 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1119 is->pictq_rindex = 0;
1121 SDL_LockMutex(is->pictq_mutex);
1123 SDL_CondSignal(is->pictq_cond);
1124 SDL_UnlockMutex(is->pictq_mutex);
1129 if (is->subtitle_st) {
1130 if (is->subtitle_stream_changed) {
1131 SDL_LockMutex(is->subpq_mutex);
1133 while (is->subpq_size) {
1134 free_subpicture(&is->subpq[is->subpq_rindex]);
1136 /* update queue size and signal for next picture */
1137 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1138 is->subpq_rindex = 0;
1142 is->subtitle_stream_changed = 0;
1144 SDL_CondSignal(is->subpq_cond);
1145 SDL_UnlockMutex(is->subpq_mutex);
1147 if (is->subpq_size > 0) {
1148 sp = &is->subpq[is->subpq_rindex];
1150 if (is->subpq_size > 1)
1151 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1155 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1156 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1158 free_subpicture(sp);
1160 /* update queue size and signal for next picture */
1161 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1162 is->subpq_rindex = 0;
1164 SDL_LockMutex(is->subpq_mutex);
1166 SDL_CondSignal(is->subpq_cond);
1167 SDL_UnlockMutex(is->subpq_mutex);
1173 /* display picture */
1174 if (!display_disable)
1177 /* update queue size and signal for next picture */
1178 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1179 is->pictq_rindex = 0;
1181 SDL_LockMutex(is->pictq_mutex);
1183 SDL_CondSignal(is->pictq_cond);
1184 SDL_UnlockMutex(is->pictq_mutex);
1186 } else if (is->audio_st) {
1187 /* draw the next audio frame */
1189 /* if only audio stream, then display the audio bars (better
1190 than nothing, just to test the implementation */
1192 /* display picture */
1193 if (!display_disable)
1197 static int64_t last_time;
1199 int aqsize, vqsize, sqsize;
1202 cur_time = av_gettime();
1203 if (!last_time || (cur_time - last_time) >= 30000) {
1208 aqsize = is->audioq.size;
1210 vqsize = is->videoq.size;
1211 if (is->subtitle_st)
1212 sqsize = is->subtitleq.size;
1214 if (is->audio_st && is->video_st)
1215 av_diff = get_audio_clock(is) - get_video_clock(is);
1216 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1217 get_master_clock(is), av_diff, FFMAX(is->skip_frames - 1, 0), aqsize / 1024,
1218 vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
1220 last_time = cur_time;
1225 static void stream_close(VideoState *is)
1229 /* XXX: use a special url_shutdown call to abort parse cleanly */
1230 is->abort_request = 1;
1231 SDL_WaitThread(is->parse_tid, NULL);
1232 SDL_WaitThread(is->refresh_tid, NULL);
1234 /* free all pictures */
1235 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1239 avfilter_unref_buffer(vp->picref);
1244 SDL_FreeYUVOverlay(vp->bmp);
1248 SDL_DestroyMutex(is->pictq_mutex);
1249 SDL_DestroyCond(is->pictq_cond);
1250 SDL_DestroyMutex(is->subpq_mutex);
1251 SDL_DestroyCond(is->subpq_cond);
1252 #if !CONFIG_AVFILTER
1253 if (is->img_convert_ctx)
1254 sws_freeContext(is->img_convert_ctx);
1259 static void do_exit(void)
1262 stream_close(cur_stream);
1269 avformat_network_deinit();
1273 av_log(NULL, AV_LOG_QUIET, "");
1277 /* allocate a picture (needs to do that in main thread to avoid
1278 potential locking problems */
1279 static void alloc_picture(void *opaque)
1281 VideoState *is = opaque;
1284 vp = &is->pictq[is->pictq_windex];
1287 SDL_FreeYUVOverlay(vp->bmp);
1291 avfilter_unref_buffer(vp->picref);
1294 vp->width = is->out_video_filter->inputs[0]->w;
1295 vp->height = is->out_video_filter->inputs[0]->h;
1296 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1298 vp->width = is->video_st->codec->width;
1299 vp->height = is->video_st->codec->height;
1300 vp->pix_fmt = is->video_st->codec->pix_fmt;
1303 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1306 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1307 /* SDL allocates a buffer smaller than requested if the video
1308 * overlay hardware is unable to support the requested size. */
1309 fprintf(stderr, "Error: the video system does not support an image\n"
1310 "size of %dx%d pixels. Try using -vf \"scale=w:h\"\n"
1311 "to reduce the image size.\n", vp->width, vp->height );
1315 SDL_LockMutex(is->pictq_mutex);
1317 SDL_CondSignal(is->pictq_cond);
1318 SDL_UnlockMutex(is->pictq_mutex);
1323 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1325 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1331 int dst_pix_fmt = PIX_FMT_YUV420P;
1333 /* wait until we have space to put a new picture */
1334 SDL_LockMutex(is->pictq_mutex);
1336 if (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1337 is->skip_frames = FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0 - FRAME_SKIP_FACTOR));
1339 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1340 !is->videoq.abort_request) {
1341 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1343 SDL_UnlockMutex(is->pictq_mutex);
1345 if (is->videoq.abort_request)
1348 vp = &is->pictq[is->pictq_windex];
1350 /* alloc or resize hardware picture buffer */
1351 if (!vp->bmp || vp->reallocate ||
1353 vp->width != is->out_video_filter->inputs[0]->w ||
1354 vp->height != is->out_video_filter->inputs[0]->h) {
1356 vp->width != is->video_st->codec->width ||
1357 vp->height != is->video_st->codec->height) {
1364 /* the allocation must be done in the main thread to avoid
1366 event.type = FF_ALLOC_EVENT;
1367 event.user.data1 = is;
1368 SDL_PushEvent(&event);
1370 /* wait until the picture is allocated */
1371 SDL_LockMutex(is->pictq_mutex);
1372 while (!vp->allocated && !is->videoq.abort_request) {
1373 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1375 SDL_UnlockMutex(is->pictq_mutex);
1377 if (is->videoq.abort_request)
1381 /* if the frame is not skipped, then display it */
1383 AVPicture pict = { { 0 } };
1386 avfilter_unref_buffer(vp->picref);
1387 vp->picref = src_frame->opaque;
1390 /* get a pointer on the bitmap */
1391 SDL_LockYUVOverlay (vp->bmp);
1393 pict.data[0] = vp->bmp->pixels[0];
1394 pict.data[1] = vp->bmp->pixels[2];
1395 pict.data[2] = vp->bmp->pixels[1];
1397 pict.linesize[0] = vp->bmp->pitches[0];
1398 pict.linesize[1] = vp->bmp->pitches[2];
1399 pict.linesize[2] = vp->bmp->pitches[1];
1402 pict_src.data[0] = src_frame->data[0];
1403 pict_src.data[1] = src_frame->data[1];
1404 pict_src.data[2] = src_frame->data[2];
1406 pict_src.linesize[0] = src_frame->linesize[0];
1407 pict_src.linesize[1] = src_frame->linesize[1];
1408 pict_src.linesize[2] = src_frame->linesize[2];
1410 // FIXME use direct rendering
1411 av_picture_copy(&pict, &pict_src,
1412 vp->pix_fmt, vp->width, vp->height);
1414 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1415 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1416 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1417 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1418 if (is->img_convert_ctx == NULL) {
1419 fprintf(stderr, "Cannot initialize the conversion context\n");
1422 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1423 0, vp->height, pict.data, pict.linesize);
1425 /* update the bitmap content */
1426 SDL_UnlockYUVOverlay(vp->bmp);
1431 /* now we can update the picture count */
1432 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1433 is->pictq_windex = 0;
1434 SDL_LockMutex(is->pictq_mutex);
1435 vp->target_clock = compute_target_time(vp->pts, is);
1438 SDL_UnlockMutex(is->pictq_mutex);
1444 * compute the exact PTS for the picture if it is omitted in the stream
1445 * @param pts1 the dts of the pkt / pts of the frame
1447 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1449 double frame_delay, pts;
1454 /* update video clock with pts, if present */
1455 is->video_clock = pts;
1457 pts = is->video_clock;
1459 /* update video clock for next frame */
1460 frame_delay = av_q2d(is->video_st->codec->time_base);
1461 /* for MPEG2, the frame can be repeated, so we update the
1462 clock accordingly */
1463 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1464 is->video_clock += frame_delay;
1466 return queue_picture(is, src_frame, pts, pos);
1469 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1473 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1476 if (pkt->data == flush_pkt.data) {
1477 avcodec_flush_buffers(is->video_st->codec);
1479 SDL_LockMutex(is->pictq_mutex);
1480 // Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1481 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1482 is->pictq[i].target_clock= 0;
1484 while (is->pictq_size && !is->videoq.abort_request) {
1485 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1487 is->video_current_pos = -1;
1488 SDL_UnlockMutex(is->pictq_mutex);
1490 init_pts_correction(&is->pts_ctx);
1491 is->frame_last_pts = AV_NOPTS_VALUE;
1492 is->frame_last_delay = 0;
1493 is->frame_timer = (double)av_gettime() / 1000000.0;
1494 is->skip_frames = 1;
1495 is->skip_frames_index = 0;
1499 avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
1502 if (decoder_reorder_pts == -1) {
1503 *pts = guess_correct_pts(&is->pts_ctx, frame->pkt_pts, frame->pkt_dts);
1504 } else if (decoder_reorder_pts) {
1505 *pts = frame->pkt_pts;
1507 *pts = frame->pkt_dts;
1510 if (*pts == AV_NOPTS_VALUE) {
1514 is->skip_frames_index += 1;
1515 if (is->skip_frames_index >= is->skip_frames) {
1516 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1525 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1527 char sws_flags_str[128];
1528 char buffersrc_args[256];
1530 AVFilterContext *filt_src = NULL, *filt_out = NULL, *filt_format;
1531 AVCodecContext *codec = is->video_st->codec;
1533 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1534 graph->scale_sws_opts = av_strdup(sws_flags_str);
1536 snprintf(buffersrc_args, sizeof(buffersrc_args), "%d:%d:%d:%d:%d:%d:%d",
1537 codec->width, codec->height, codec->pix_fmt,
1538 is->video_st->time_base.num, is->video_st->time_base.den,
1539 codec->sample_aspect_ratio.num, codec->sample_aspect_ratio.den);
1542 if ((ret = avfilter_graph_create_filter(&filt_src,
1543 avfilter_get_by_name("buffer"),
1544 "src", buffersrc_args, NULL,
1547 if ((ret = avfilter_graph_create_filter(&filt_out,
1548 avfilter_get_by_name("buffersink"),
1549 "out", NULL, NULL, graph)) < 0)
1552 if ((ret = avfilter_graph_create_filter(&filt_format,
1553 avfilter_get_by_name("format"),
1554 "format", "yuv420p", NULL, graph)) < 0)
1556 if ((ret = avfilter_link(filt_format, 0, filt_out, 0)) < 0)
1561 AVFilterInOut *outputs = avfilter_inout_alloc();
1562 AVFilterInOut *inputs = avfilter_inout_alloc();
1564 outputs->name = av_strdup("in");
1565 outputs->filter_ctx = filt_src;
1566 outputs->pad_idx = 0;
1567 outputs->next = NULL;
1569 inputs->name = av_strdup("out");
1570 inputs->filter_ctx = filt_format;
1571 inputs->pad_idx = 0;
1572 inputs->next = NULL;
1574 if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1577 if ((ret = avfilter_link(filt_src, 0, filt_format, 0)) < 0)
1581 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1584 is->in_video_filter = filt_src;
1585 is->out_video_filter = filt_out;
1587 if (codec->codec->capabilities & CODEC_CAP_DR1) {
1589 codec->get_buffer = codec_get_buffer;
1590 codec->release_buffer = codec_release_buffer;
1591 codec->opaque = &is->buffer_pool;
1597 #endif /* CONFIG_AVFILTER */
1599 static int video_thread(void *arg)
1601 AVPacket pkt = { 0 };
1602 VideoState *is = arg;
1603 AVFrame *frame = avcodec_alloc_frame();
1609 AVFilterGraph *graph = avfilter_graph_alloc();
1610 AVFilterContext *filt_out = NULL, *filt_in = NULL;
1612 int last_w = is->video_st->codec->width;
1613 int last_h = is->video_st->codec->height;
1615 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1617 filt_in = is->in_video_filter;
1618 filt_out = is->out_video_filter;
1623 AVFilterBufferRef *picref;
1626 while (is->paused && !is->videoq.abort_request)
1629 av_free_packet(&pkt);
1631 ret = get_video_frame(is, frame, &pts_int, &pkt);
1639 if ( last_w != is->video_st->codec->width
1640 || last_h != is->video_st->codec->height) {
1641 av_dlog(NULL, "Changing size %dx%d -> %dx%d\n", last_w, last_h,
1642 is->video_st->codec->width, is->video_st->codec->height);
1643 avfilter_graph_free(&graph);
1644 graph = avfilter_graph_alloc();
1645 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1647 filt_in = is->in_video_filter;
1648 filt_out = is->out_video_filter;
1649 last_w = is->video_st->codec->width;
1650 last_h = is->video_st->codec->height;
1653 frame->pts = pts_int;
1655 FrameBuffer *buf = frame->opaque;
1656 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1657 frame->data, frame->linesize,
1658 AV_PERM_READ | AV_PERM_PRESERVE,
1659 frame->width, frame->height,
1662 avfilter_copy_frame_props(fb, frame);
1663 fb->buf->priv = buf;
1664 fb->buf->free = filter_release_buffer;
1667 av_buffersrc_buffer(filt_in, fb);
1670 av_buffersrc_write_frame(filt_in, frame);
1673 ret = av_buffersink_read(filt_out, &picref);
1679 avfilter_copy_buf_props(frame, picref);
1681 pts_int = picref->pts;
1682 tb = filt_out->inputs[0]->time_base;
1684 frame->opaque = picref;
1686 if (av_cmp_q(tb, is->video_st->time_base)) {
1687 av_unused int64_t pts1 = pts_int;
1688 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1689 av_dlog(NULL, "video_thread(): "
1690 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1691 tb.num, tb.den, pts1,
1692 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1694 pts = pts_int * av_q2d(is->video_st->time_base);
1695 ret = output_picture2(is, frame, pts, pos);
1698 pts = pts_int * av_q2d(is->video_st->time_base);
1699 ret = output_picture2(is, frame, pts, pkt.pos);
1707 stream_pause(cur_stream);
1711 av_freep(&vfilters);
1712 avfilter_graph_free(&graph);
1714 av_free_packet(&pkt);
1719 static int subtitle_thread(void *arg)
1721 VideoState *is = arg;
1723 AVPacket pkt1, *pkt = &pkt1;
1727 int r, g, b, y, u, v, a;
1730 while (is->paused && !is->subtitleq.abort_request) {
1733 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1736 if (pkt->data == flush_pkt.data) {
1737 avcodec_flush_buffers(is->subtitle_st->codec);
1740 SDL_LockMutex(is->subpq_mutex);
1741 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1742 !is->subtitleq.abort_request) {
1743 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1745 SDL_UnlockMutex(is->subpq_mutex);
1747 if (is->subtitleq.abort_request)
1750 sp = &is->subpq[is->subpq_windex];
1752 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1753 this packet, if any */
1755 if (pkt->pts != AV_NOPTS_VALUE)
1756 pts = av_q2d(is->subtitle_st->time_base) * pkt->pts;
1758 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1759 &got_subtitle, pkt);
1761 if (got_subtitle && sp->sub.format == 0) {
1764 for (i = 0; i < sp->sub.num_rects; i++)
1766 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1768 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1769 y = RGB_TO_Y_CCIR(r, g, b);
1770 u = RGB_TO_U_CCIR(r, g, b, 0);
1771 v = RGB_TO_V_CCIR(r, g, b, 0);
1772 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1776 /* now we can update the picture count */
1777 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1778 is->subpq_windex = 0;
1779 SDL_LockMutex(is->subpq_mutex);
1781 SDL_UnlockMutex(is->subpq_mutex);
1783 av_free_packet(pkt);
1788 /* copy samples for viewing in editor window */
1789 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1793 size = samples_size / sizeof(short);
1795 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1798 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1800 is->sample_array_index += len;
1801 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1802 is->sample_array_index = 0;
1807 /* return the new audio buffer size (samples can be added or deleted
1808 to get better sync if video or external master clock) */
1809 static int synchronize_audio(VideoState *is, short *samples,
1810 int samples_size1, double pts)
1812 int n, samples_size;
1815 n = is->sdl_channels * av_get_bytes_per_sample(is->sdl_sample_fmt);
1816 samples_size = samples_size1;
1818 /* if not master, then we try to remove or add samples to correct the clock */
1819 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1820 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1821 double diff, avg_diff;
1822 int wanted_size, min_size, max_size, nb_samples;
1824 ref_clock = get_master_clock(is);
1825 diff = get_audio_clock(is) - ref_clock;
1827 if (diff < AV_NOSYNC_THRESHOLD) {
1828 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1829 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1830 /* not enough measures to have a correct estimate */
1831 is->audio_diff_avg_count++;
1833 /* estimate the A-V difference */
1834 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1836 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1837 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1838 nb_samples = samples_size / n;
1840 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1841 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1842 if (wanted_size < min_size)
1843 wanted_size = min_size;
1844 else if (wanted_size > max_size)
1845 wanted_size = max_size;
1847 /* add or remove samples to correction the synchro */
1848 if (wanted_size < samples_size) {
1849 /* remove samples */
1850 samples_size = wanted_size;
1851 } else if (wanted_size > samples_size) {
1852 uint8_t *samples_end, *q;
1856 nb = (samples_size - wanted_size);
1857 samples_end = (uint8_t *)samples + samples_size - n;
1858 q = samples_end + n;
1860 memcpy(q, samples_end, n);
1864 samples_size = wanted_size;
1867 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1868 diff, avg_diff, samples_size - samples_size1,
1869 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1872 /* too big difference : may be initial PTS errors, so
1874 is->audio_diff_avg_count = 0;
1875 is->audio_diff_cum = 0;
1879 return samples_size;
1882 /* decode one audio frame and returns its uncompressed size */
1883 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1885 AVPacket *pkt_temp = &is->audio_pkt_temp;
1886 AVPacket *pkt = &is->audio_pkt;
1887 AVCodecContext *dec = is->audio_st->codec;
1888 int n, len1, data_size, got_frame;
1891 int flush_complete = 0;
1894 /* NOTE: the audio packet can contain several frames */
1895 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
1896 int resample_changed, audio_resample;
1899 if (!(is->frame = avcodec_alloc_frame()))
1900 return AVERROR(ENOMEM);
1902 avcodec_get_frame_defaults(is->frame);
1907 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
1909 /* if error, we skip the frame */
1914 pkt_temp->data += len1;
1915 pkt_temp->size -= len1;
1918 /* stop sending empty packets if the decoder is finished */
1919 if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
1923 data_size = av_samples_get_buffer_size(NULL, dec->channels,
1924 is->frame->nb_samples,
1925 dec->sample_fmt, 1);
1927 audio_resample = dec->sample_fmt != is->sdl_sample_fmt ||
1928 dec->channel_layout != is->sdl_channel_layout;
1930 resample_changed = dec->sample_fmt != is->resample_sample_fmt ||
1931 dec->channel_layout != is->resample_channel_layout;
1933 if ((!is->avr && audio_resample) || resample_changed) {
1936 avresample_close(is->avr);
1937 else if (audio_resample) {
1938 is->avr = avresample_alloc_context();
1940 fprintf(stderr, "error allocating AVAudioResampleContext\n");
1944 if (audio_resample) {
1945 av_opt_set_int(is->avr, "in_channel_layout", dec->channel_layout, 0);
1946 av_opt_set_int(is->avr, "in_sample_fmt", dec->sample_fmt, 0);
1947 av_opt_set_int(is->avr, "in_sample_rate", dec->sample_rate, 0);
1948 av_opt_set_int(is->avr, "out_channel_layout", is->sdl_channel_layout, 0);
1949 av_opt_set_int(is->avr, "out_sample_fmt", is->sdl_sample_fmt, 0);
1950 av_opt_set_int(is->avr, "out_sample_rate", dec->sample_rate, 0);
1952 if ((ret = avresample_open(is->avr)) < 0) {
1953 fprintf(stderr, "error initializing libavresample\n");
1957 is->resample_sample_fmt = dec->sample_fmt;
1958 is->resample_channel_layout = dec->channel_layout;
1961 if (audio_resample) {
1963 int out_samples, out_size, out_linesize;
1964 int osize = av_get_bytes_per_sample(is->sdl_sample_fmt);
1965 int nb_samples = is->frame->nb_samples;
1967 out_size = av_samples_get_buffer_size(&out_linesize,
1970 is->sdl_sample_fmt, 0);
1971 tmp_out = av_realloc(is->audio_buf1, out_size);
1973 return AVERROR(ENOMEM);
1974 is->audio_buf1 = tmp_out;
1976 out_samples = avresample_convert(is->avr,
1977 (void **)&is->audio_buf1,
1978 out_linesize, nb_samples,
1979 (void **)is->frame->data,
1980 is->frame->linesize[0],
1981 is->frame->nb_samples);
1982 if (out_samples < 0) {
1983 fprintf(stderr, "avresample_convert() failed\n");
1986 is->audio_buf = is->audio_buf1;
1987 data_size = out_samples * osize * is->sdl_channels;
1989 is->audio_buf = is->frame->data[0];
1992 /* if no pts, then compute it */
1993 pts = is->audio_clock;
1995 n = is->sdl_channels * av_get_bytes_per_sample(is->sdl_sample_fmt);
1996 is->audio_clock += (double)data_size /
1997 (double)(n * dec->sample_rate);
2000 static double last_clock;
2001 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2002 is->audio_clock - last_clock,
2003 is->audio_clock, pts);
2004 last_clock = is->audio_clock;
2010 /* free the current packet */
2012 av_free_packet(pkt);
2013 memset(pkt_temp, 0, sizeof(*pkt_temp));
2015 if (is->paused || is->audioq.abort_request) {
2019 /* read next packet */
2020 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
2023 if (pkt->data == flush_pkt.data) {
2024 avcodec_flush_buffers(dec);
2030 /* if update the audio clock with the pts */
2031 if (pkt->pts != AV_NOPTS_VALUE) {
2032 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2037 /* prepare a new audio buffer */
2038 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2040 VideoState *is = opaque;
2041 int audio_size, len1;
2044 audio_callback_time = av_gettime();
2047 if (is->audio_buf_index >= is->audio_buf_size) {
2048 audio_size = audio_decode_frame(is, &pts);
2049 if (audio_size < 0) {
2050 /* if error, just output silence */
2051 is->audio_buf = is->silence_buf;
2052 is->audio_buf_size = sizeof(is->silence_buf);
2055 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2056 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2058 is->audio_buf_size = audio_size;
2060 is->audio_buf_index = 0;
2062 len1 = is->audio_buf_size - is->audio_buf_index;
2065 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2068 is->audio_buf_index += len1;
2072 /* open a given stream. Return 0 if OK */
2073 static int stream_component_open(VideoState *is, int stream_index)
2075 AVFormatContext *ic = is->ic;
2076 AVCodecContext *avctx;
2078 SDL_AudioSpec wanted_spec, spec;
2080 AVDictionaryEntry *t = NULL;
2082 if (stream_index < 0 || stream_index >= ic->nb_streams)
2084 avctx = ic->streams[stream_index]->codec;
2086 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], NULL);
2088 codec = avcodec_find_decoder(avctx->codec_id);
2089 avctx->debug_mv = debug_mv;
2090 avctx->debug = debug;
2091 avctx->workaround_bugs = workaround_bugs;
2092 avctx->idct_algo = idct;
2093 avctx->skip_frame = skip_frame;
2094 avctx->skip_idct = skip_idct;
2095 avctx->skip_loop_filter = skip_loop_filter;
2096 avctx->error_concealment = error_concealment;
2098 if (fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2100 if (!av_dict_get(opts, "threads", NULL, 0))
2101 av_dict_set(&opts, "threads", "auto", 0);
2103 avcodec_open2(avctx, codec, &opts) < 0)
2105 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2106 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2107 return AVERROR_OPTION_NOT_FOUND;
2110 /* prepare audio output */
2111 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2112 wanted_spec.freq = avctx->sample_rate;
2113 wanted_spec.format = AUDIO_S16SYS;
2115 if (!avctx->channel_layout)
2116 avctx->channel_layout = av_get_default_channel_layout(avctx->channels);
2117 if (!avctx->channel_layout) {
2118 fprintf(stderr, "unable to guess channel layout\n");
2121 if (avctx->channels == 1)
2122 is->sdl_channel_layout = AV_CH_LAYOUT_MONO;
2124 is->sdl_channel_layout = AV_CH_LAYOUT_STEREO;
2125 is->sdl_channels = av_get_channel_layout_nb_channels(is->sdl_channel_layout);
2127 wanted_spec.channels = is->sdl_channels;
2128 wanted_spec.silence = 0;
2129 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2130 wanted_spec.callback = sdl_audio_callback;
2131 wanted_spec.userdata = is;
2132 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2133 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2136 is->audio_hw_buf_size = spec.size;
2137 is->sdl_sample_fmt = AV_SAMPLE_FMT_S16;
2138 is->resample_sample_fmt = is->sdl_sample_fmt;
2139 is->resample_channel_layout = is->sdl_channel_layout;
2142 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2143 switch (avctx->codec_type) {
2144 case AVMEDIA_TYPE_AUDIO:
2145 is->audio_stream = stream_index;
2146 is->audio_st = ic->streams[stream_index];
2147 is->audio_buf_size = 0;
2148 is->audio_buf_index = 0;
2150 /* init averaging filter */
2151 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2152 is->audio_diff_avg_count = 0;
2153 /* since we do not have a precise anough audio fifo fullness,
2154 we correct audio sync only if larger than this threshold */
2155 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2157 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2158 packet_queue_init(&is->audioq);
2161 case AVMEDIA_TYPE_VIDEO:
2162 is->video_stream = stream_index;
2163 is->video_st = ic->streams[stream_index];
2165 packet_queue_init(&is->videoq);
2166 is->video_tid = SDL_CreateThread(video_thread, is);
2168 case AVMEDIA_TYPE_SUBTITLE:
2169 is->subtitle_stream = stream_index;
2170 is->subtitle_st = ic->streams[stream_index];
2171 packet_queue_init(&is->subtitleq);
2173 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2181 static void stream_component_close(VideoState *is, int stream_index)
2183 AVFormatContext *ic = is->ic;
2184 AVCodecContext *avctx;
2186 if (stream_index < 0 || stream_index >= ic->nb_streams)
2188 avctx = ic->streams[stream_index]->codec;
2190 switch (avctx->codec_type) {
2191 case AVMEDIA_TYPE_AUDIO:
2192 packet_queue_abort(&is->audioq);
2196 packet_queue_end(&is->audioq);
2197 av_free_packet(&is->audio_pkt);
2199 avresample_free(&is->avr);
2200 av_freep(&is->audio_buf1);
2201 is->audio_buf = NULL;
2202 av_freep(&is->frame);
2205 av_rdft_end(is->rdft);
2206 av_freep(&is->rdft_data);
2211 case AVMEDIA_TYPE_VIDEO:
2212 packet_queue_abort(&is->videoq);
2214 /* note: we also signal this mutex to make sure we deblock the
2215 video thread in all cases */
2216 SDL_LockMutex(is->pictq_mutex);
2217 SDL_CondSignal(is->pictq_cond);
2218 SDL_UnlockMutex(is->pictq_mutex);
2220 SDL_WaitThread(is->video_tid, NULL);
2222 packet_queue_end(&is->videoq);
2224 case AVMEDIA_TYPE_SUBTITLE:
2225 packet_queue_abort(&is->subtitleq);
2227 /* note: we also signal this mutex to make sure we deblock the
2228 video thread in all cases */
2229 SDL_LockMutex(is->subpq_mutex);
2230 is->subtitle_stream_changed = 1;
2232 SDL_CondSignal(is->subpq_cond);
2233 SDL_UnlockMutex(is->subpq_mutex);
2235 SDL_WaitThread(is->subtitle_tid, NULL);
2237 packet_queue_end(&is->subtitleq);
2243 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2244 avcodec_close(avctx);
2245 free_buffer_pool(&is->buffer_pool);
2246 switch (avctx->codec_type) {
2247 case AVMEDIA_TYPE_AUDIO:
2248 is->audio_st = NULL;
2249 is->audio_stream = -1;
2251 case AVMEDIA_TYPE_VIDEO:
2252 is->video_st = NULL;
2253 is->video_stream = -1;
2255 case AVMEDIA_TYPE_SUBTITLE:
2256 is->subtitle_st = NULL;
2257 is->subtitle_stream = -1;
2264 /* since we have only one decoding thread, we can use a global
2265 variable instead of a thread local variable */
2266 static VideoState *global_video_state;
2268 static int decode_interrupt_cb(void *ctx)
2270 return global_video_state && global_video_state->abort_request;
2273 /* this thread gets the stream from the disk or the network */
2274 static int decode_thread(void *arg)
2276 VideoState *is = arg;
2277 AVFormatContext *ic = NULL;
2279 int st_index[AVMEDIA_TYPE_NB];
2280 AVPacket pkt1, *pkt = &pkt1;
2282 int pkt_in_play_range = 0;
2283 AVDictionaryEntry *t;
2284 AVDictionary **opts;
2285 int orig_nb_streams;
2287 memset(st_index, -1, sizeof(st_index));
2288 is->video_stream = -1;
2289 is->audio_stream = -1;
2290 is->subtitle_stream = -1;
2292 global_video_state = is;
2294 ic = avformat_alloc_context();
2295 ic->interrupt_callback.callback = decode_interrupt_cb;
2296 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2298 print_error(is->filename, err);
2302 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2303 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2304 ret = AVERROR_OPTION_NOT_FOUND;
2310 ic->flags |= AVFMT_FLAG_GENPTS;
2312 opts = setup_find_stream_info_opts(ic, codec_opts);
2313 orig_nb_streams = ic->nb_streams;
2315 err = avformat_find_stream_info(ic, opts);
2317 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2321 for (i = 0; i < orig_nb_streams; i++)
2322 av_dict_free(&opts[i]);
2326 ic->pb->eof_reached = 0; // FIXME hack, avplay maybe should not use url_feof() to test for the end
2328 if (seek_by_bytes < 0)
2329 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2331 /* if seeking requested, we execute it */
2332 if (start_time != AV_NOPTS_VALUE) {
2335 timestamp = start_time;
2336 /* add the stream start time */
2337 if (ic->start_time != AV_NOPTS_VALUE)
2338 timestamp += ic->start_time;
2339 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2341 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2342 is->filename, (double)timestamp / AV_TIME_BASE);
2346 for (i = 0; i < ic->nb_streams; i++)
2347 ic->streams[i]->discard = AVDISCARD_ALL;
2349 st_index[AVMEDIA_TYPE_VIDEO] =
2350 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2351 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2353 st_index[AVMEDIA_TYPE_AUDIO] =
2354 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2355 wanted_stream[AVMEDIA_TYPE_AUDIO],
2356 st_index[AVMEDIA_TYPE_VIDEO],
2359 st_index[AVMEDIA_TYPE_SUBTITLE] =
2360 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2361 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2362 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2363 st_index[AVMEDIA_TYPE_AUDIO] :
2364 st_index[AVMEDIA_TYPE_VIDEO]),
2367 av_dump_format(ic, 0, is->filename, 0);
2370 /* open the streams */
2371 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2372 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2376 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2377 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2379 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2381 if (!display_disable)
2385 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2386 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2389 if (is->video_stream < 0 && is->audio_stream < 0) {
2390 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2396 if (is->abort_request)
2398 if (is->paused != is->last_paused) {
2399 is->last_paused = is->paused;
2401 is->read_pause_return = av_read_pause(ic);
2405 #if CONFIG_RTSP_DEMUXER
2406 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2407 /* wait 10 ms to avoid trying to get another packet */
2414 int64_t seek_target = is->seek_pos;
2415 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2416 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2417 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2418 // of the seek_pos/seek_rel variables
2420 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2422 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2424 if (is->audio_stream >= 0) {
2425 packet_queue_flush(&is->audioq);
2426 packet_queue_put(&is->audioq, &flush_pkt);
2428 if (is->subtitle_stream >= 0) {
2429 packet_queue_flush(&is->subtitleq);
2430 packet_queue_put(&is->subtitleq, &flush_pkt);
2432 if (is->video_stream >= 0) {
2433 packet_queue_flush(&is->videoq);
2434 packet_queue_put(&is->videoq, &flush_pkt);
2441 /* if the queue are full, no need to read more */
2442 if (!infinite_buffer &&
2443 (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2444 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream < 0)
2445 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0)
2446 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0)))) {
2452 if (is->video_stream >= 0) {
2453 av_init_packet(pkt);
2456 pkt->stream_index = is->video_stream;
2457 packet_queue_put(&is->videoq, pkt);
2459 if (is->audio_stream >= 0 &&
2460 is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
2461 av_init_packet(pkt);
2464 pkt->stream_index = is->audio_stream;
2465 packet_queue_put(&is->audioq, pkt);
2468 if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) {
2469 if (loop != 1 && (!loop || --loop)) {
2470 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2471 } else if (autoexit) {
2478 ret = av_read_frame(ic, pkt);
2480 if (ret == AVERROR_EOF || (ic->pb && ic->pb->eof_reached))
2482 if (ic->pb && ic->pb->error)
2484 SDL_Delay(100); /* wait for user event */
2487 /* check if packet is in play range specified by user, then queue, otherwise discard */
2488 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2489 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2490 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2491 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2492 <= ((double)duration / 1000000);
2493 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2494 packet_queue_put(&is->audioq, pkt);
2495 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2496 packet_queue_put(&is->videoq, pkt);
2497 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2498 packet_queue_put(&is->subtitleq, pkt);
2500 av_free_packet(pkt);
2503 /* wait until the end */
2504 while (!is->abort_request) {
2510 /* disable interrupting */
2511 global_video_state = NULL;
2513 /* close each stream */
2514 if (is->audio_stream >= 0)
2515 stream_component_close(is, is->audio_stream);
2516 if (is->video_stream >= 0)
2517 stream_component_close(is, is->video_stream);
2518 if (is->subtitle_stream >= 0)
2519 stream_component_close(is, is->subtitle_stream);
2521 avformat_close_input(&is->ic);
2527 event.type = FF_QUIT_EVENT;
2528 event.user.data1 = is;
2529 SDL_PushEvent(&event);
2534 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2538 is = av_mallocz(sizeof(VideoState));
2541 av_strlcpy(is->filename, filename, sizeof(is->filename));
2542 is->iformat = iformat;
2546 /* start video display */
2547 is->pictq_mutex = SDL_CreateMutex();
2548 is->pictq_cond = SDL_CreateCond();
2550 is->subpq_mutex = SDL_CreateMutex();
2551 is->subpq_cond = SDL_CreateCond();
2553 is->av_sync_type = av_sync_type;
2554 is->parse_tid = SDL_CreateThread(decode_thread, is);
2555 if (!is->parse_tid) {
2562 static void stream_cycle_channel(VideoState *is, int codec_type)
2564 AVFormatContext *ic = is->ic;
2565 int start_index, stream_index;
2568 if (codec_type == AVMEDIA_TYPE_VIDEO)
2569 start_index = is->video_stream;
2570 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2571 start_index = is->audio_stream;
2573 start_index = is->subtitle_stream;
2574 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2576 stream_index = start_index;
2578 if (++stream_index >= is->ic->nb_streams)
2580 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2587 if (stream_index == start_index)
2589 st = ic->streams[stream_index];
2590 if (st->codec->codec_type == codec_type) {
2591 /* check that parameters are OK */
2592 switch (codec_type) {
2593 case AVMEDIA_TYPE_AUDIO:
2594 if (st->codec->sample_rate != 0 &&
2595 st->codec->channels != 0)
2598 case AVMEDIA_TYPE_VIDEO:
2599 case AVMEDIA_TYPE_SUBTITLE:
2607 stream_component_close(is, start_index);
2608 stream_component_open(is, stream_index);
2612 static void toggle_full_screen(void)
2614 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2615 /* OS X needs to empty the picture_queue */
2617 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++)
2618 cur_stream->pictq[i].reallocate = 1;
2620 is_full_screen = !is_full_screen;
2621 video_open(cur_stream);
2624 static void toggle_pause(void)
2627 stream_pause(cur_stream);
2631 static void step_to_next_frame(void)
2634 /* if the stream is paused unpause it, then step */
2635 if (cur_stream->paused)
2636 stream_pause(cur_stream);
2641 static void toggle_audio_display(void)
2644 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2645 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2646 fill_rectangle(screen,
2647 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2649 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2653 /* handle an event sent by the GUI */
2654 static void event_loop(void)
2657 double incr, pos, frac;
2661 SDL_WaitEvent(&event);
2662 switch (event.type) {
2664 if (exit_on_keydown) {
2668 switch (event.key.keysym.sym) {
2674 toggle_full_screen();
2680 case SDLK_s: // S: Step to next frame
2681 step_to_next_frame();
2685 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2689 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2693 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2696 toggle_audio_display();
2711 if (seek_by_bytes) {
2712 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) {
2713 pos = cur_stream->video_current_pos;
2714 } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) {
2715 pos = cur_stream->audio_pkt.pos;
2717 pos = avio_tell(cur_stream->ic->pb);
2718 if (cur_stream->ic->bit_rate)
2719 incr *= cur_stream->ic->bit_rate / 8.0;
2723 stream_seek(cur_stream, pos, incr, 1);
2725 pos = get_master_clock(cur_stream);
2727 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2735 case SDL_MOUSEBUTTONDOWN:
2736 if (exit_on_mousedown) {
2740 case SDL_MOUSEMOTION:
2741 if (event.type == SDL_MOUSEBUTTONDOWN) {
2744 if (event.motion.state != SDL_PRESSED)
2749 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
2750 uint64_t size = avio_size(cur_stream->ic->pb);
2751 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2755 int tns, thh, tmm, tss;
2756 tns = cur_stream->ic->duration / 1000000LL;
2758 tmm = (tns % 3600) / 60;
2760 frac = x / cur_stream->width;
2763 mm = (ns % 3600) / 60;
2765 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2766 hh, mm, ss, thh, tmm, tss);
2767 ts = frac * cur_stream->ic->duration;
2768 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2769 ts += cur_stream->ic->start_time;
2770 stream_seek(cur_stream, ts, 0, 0);
2774 case SDL_VIDEORESIZE:
2776 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2777 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2778 screen_width = cur_stream->width = event.resize.w;
2779 screen_height = cur_stream->height = event.resize.h;
2786 case FF_ALLOC_EVENT:
2787 video_open(event.user.data1);
2788 alloc_picture(event.user.data1);
2790 case FF_REFRESH_EVENT:
2791 video_refresh_timer(event.user.data1);
2792 cur_stream->refresh = 0;
2800 static int opt_frame_size(const char *opt, const char *arg)
2802 av_log(NULL, AV_LOG_ERROR,
2803 "Option '%s' has been removed, use private format options instead\n", opt);
2804 return AVERROR(EINVAL);
2807 static int opt_width(const char *opt, const char *arg)
2809 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2813 static int opt_height(const char *opt, const char *arg)
2815 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2819 static int opt_format(const char *opt, const char *arg)
2821 file_iformat = av_find_input_format(arg);
2822 if (!file_iformat) {
2823 fprintf(stderr, "Unknown input format: %s\n", arg);
2824 return AVERROR(EINVAL);
2829 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2831 av_log(NULL, AV_LOG_ERROR,
2832 "Option '%s' has been removed, use private format options instead\n", opt);
2833 return AVERROR(EINVAL);
2836 static int opt_sync(const char *opt, const char *arg)
2838 if (!strcmp(arg, "audio"))
2839 av_sync_type = AV_SYNC_AUDIO_MASTER;
2840 else if (!strcmp(arg, "video"))
2841 av_sync_type = AV_SYNC_VIDEO_MASTER;
2842 else if (!strcmp(arg, "ext"))
2843 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2845 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2851 static int opt_seek(const char *opt, const char *arg)
2853 start_time = parse_time_or_die(opt, arg, 1);
2857 static int opt_duration(const char *opt, const char *arg)
2859 duration = parse_time_or_die(opt, arg, 1);
2863 static int opt_debug(const char *opt, const char *arg)
2865 av_log_set_level(99);
2866 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2870 static int opt_vismv(const char *opt, const char *arg)
2872 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2876 static const OptionDef options[] = {
2877 #include "cmdutils_common_opts.h"
2878 { "x", HAS_ARG, { (void*)opt_width }, "force displayed width", "width" },
2879 { "y", HAS_ARG, { (void*)opt_height }, "force displayed height", "height" },
2880 { "s", HAS_ARG | OPT_VIDEO, { (void*)opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
2881 { "fs", OPT_BOOL, { (void*)&is_full_screen }, "force full screen" },
2882 { "an", OPT_BOOL, { (void*)&audio_disable }, "disable audio" },
2883 { "vn", OPT_BOOL, { (void*)&video_disable }, "disable video" },
2884 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
2885 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
2886 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
2887 { "ss", HAS_ARG, { (void*)&opt_seek }, "seek to a given position in seconds", "pos" },
2888 { "t", HAS_ARG, { (void*)&opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
2889 { "bytes", OPT_INT | HAS_ARG, { (void*)&seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
2890 { "nodisp", OPT_BOOL, { (void*)&display_disable }, "disable graphical display" },
2891 { "f", HAS_ARG, { (void*)opt_format }, "force format", "fmt" },
2892 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { (void*)opt_frame_pix_fmt }, "set pixel format", "format" },
2893 { "stats", OPT_BOOL | OPT_EXPERT, { (void*)&show_status }, "show status", "" },
2894 { "debug", HAS_ARG | OPT_EXPERT, { (void*)opt_debug }, "print specific debug info", "" },
2895 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&workaround_bugs }, "workaround bugs", "" },
2896 { "vismv", HAS_ARG | OPT_EXPERT, { (void*)opt_vismv }, "visualize motion vectors", "" },
2897 { "fast", OPT_BOOL | OPT_EXPERT, { (void*)&fast }, "non spec compliant optimizations", "" },
2898 { "genpts", OPT_BOOL | OPT_EXPERT, { (void*)&genpts }, "generate pts", "" },
2899 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2900 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_loop_filter }, "", "" },
2901 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_frame }, "", "" },
2902 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_idct }, "", "" },
2903 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&idct }, "set idct algo", "algo" },
2904 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&error_concealment }, "set error concealment options", "bit_mask" },
2905 { "sync", HAS_ARG | OPT_EXPERT, { (void*)opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
2906 { "autoexit", OPT_BOOL | OPT_EXPERT, { (void*)&autoexit }, "exit at the end", "" },
2907 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_keydown }, "exit on key down", "" },
2908 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_mousedown }, "exit on mouse down", "" },
2909 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&loop }, "set number of times the playback shall be looped", "loop count" },
2910 { "framedrop", OPT_BOOL | OPT_EXPERT, { (void*)&framedrop }, "drop frames when cpu is too slow", "" },
2911 { "infbuf", OPT_BOOL | OPT_EXPERT, { (void*)&infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" },
2912 { "window_title", OPT_STRING | HAS_ARG, { (void*)&window_title }, "set window title", "window title" },
2914 { "vf", OPT_STRING | HAS_ARG, { (void*)&vfilters }, "video filters", "filter list" },
2916 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { (void*)&rdftspeed }, "rdft speed", "msecs" },
2917 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { (void*)opt_default }, "generic catch all option", "" },
2918 { "i", 0, { NULL }, "avconv compatibility dummy option", ""},
2922 static void show_usage(void)
2924 printf("Simple media player\n");
2925 printf("usage: %s [options] input_file\n", program_name);
2929 static void show_help(void)
2931 av_log_set_callback(log_callback_help);
2933 show_help_options(options, "Main options:\n",
2935 show_help_options(options, "\nAdvanced options:\n",
2936 OPT_EXPERT, OPT_EXPERT);
2938 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
2939 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
2940 #if !CONFIG_AVFILTER
2941 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
2943 printf("\nWhile playing:\n"
2945 "f toggle full screen\n"
2947 "a cycle audio channel\n"
2948 "v cycle video channel\n"
2949 "t cycle subtitle channel\n"
2950 "w show audio waves\n"
2951 "s activate frame-step mode\n"
2952 "left/right seek backward/forward 10 seconds\n"
2953 "down/up seek backward/forward 1 minute\n"
2954 "mouse click seek to percentage in file corresponding to fraction of width\n"
2958 static void opt_input_file(void *optctx, const char *filename)
2960 if (input_filename) {
2961 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
2962 filename, input_filename);
2965 if (!strcmp(filename, "-"))
2967 input_filename = filename;
2970 /* Called from the main */
2971 int main(int argc, char **argv)
2975 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2976 parse_loglevel(argc, argv, options);
2978 /* register all codecs, demux and protocols */
2979 avcodec_register_all();
2981 avdevice_register_all();
2984 avfilter_register_all();
2987 avformat_network_init();
2993 parse_options(NULL, argc, argv, options, opt_input_file);
2995 if (!input_filename) {
2997 fprintf(stderr, "An input file must be specified\n");
2998 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3002 if (display_disable) {
3005 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3006 #if !defined(__MINGW32__) && !defined(__APPLE__)
3007 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3009 if (SDL_Init (flags)) {
3010 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3014 if (!display_disable) {
3015 #if HAVE_SDL_VIDEO_SIZE
3016 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3017 fs_screen_width = vi->current_w;
3018 fs_screen_height = vi->current_h;
3022 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3023 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3024 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3026 av_init_packet(&flush_pkt);
3027 flush_pkt.data = "FLUSH";
3029 cur_stream = stream_open(input_filename, file_iformat);