2 * Copyright (c) 2003 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * simple media player based on the FFmpeg libraries
31 #include "libavutil/avstring.h"
32 #include "libavutil/colorspace.h"
33 #include "libavutil/mathematics.h"
34 #include "libavutil/pixdesc.h"
35 #include "libavutil/imgutils.h"
36 #include "libavutil/dict.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/avassert.h"
40 #include "libavutil/time.h"
41 #include "libavformat/avformat.h"
42 #include "libavdevice/avdevice.h"
43 #include "libswscale/swscale.h"
44 #include "libavutil/opt.h"
45 #include "libavcodec/avfft.h"
46 #include "libswresample/swresample.h"
49 # include "libavfilter/avcodec.h"
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/buffersink.h"
53 # include "libavfilter/buffersrc.h"
57 #include <SDL_thread.h>
63 const char program_name[] = "ffplay";
64 const int program_birth_year = 2003;
66 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
69 /* SDL audio buffer size, in samples. Should be small to have precise
70 A/V sync as SDL does not have hardware buffer fullness info. */
71 #define SDL_AUDIO_BUFFER_SIZE 1024
73 /* no AV sync correction is done if below the AV sync threshold */
74 #define AV_SYNC_THRESHOLD 0.01
75 /* no AV correction is done if too big error */
76 #define AV_NOSYNC_THRESHOLD 10.0
78 /* 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 /* TODO: We assume that a decoded and resampled frame fits into this buffer */
86 #define SAMPLE_ARRAY_SIZE (8 * 65536)
88 static int sws_flags = SWS_BICUBIC;
90 typedef struct PacketQueue {
91 AVPacketList *first_pkt, *last_pkt;
99 #define VIDEO_PICTURE_QUEUE_SIZE 4
100 #define SUBPICTURE_QUEUE_SIZE 4
102 typedef struct VideoPicture {
103 double pts; ///< presentation time stamp for this picture
104 int64_t pos; ///< byte position in file
107 int width, height; /* source height & width */
108 AVRational sample_aspect_ratio;
113 AVFilterBufferRef *picref;
117 typedef struct SubPicture {
118 double pts; /* presentation time stamp for this picture */
122 typedef struct AudioParams {
126 enum AVSampleFormat fmt;
130 AV_SYNC_AUDIO_MASTER, /* default choice */
131 AV_SYNC_VIDEO_MASTER,
132 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
135 typedef struct VideoState {
136 SDL_Thread *read_tid;
137 SDL_Thread *video_tid;
138 SDL_Thread *refresh_tid;
139 AVInputFormat *iformat;
145 int que_attachments_req;
150 int read_pause_return;
156 double external_clock; /* external clock base */
157 int64_t external_clock_time;
160 double audio_diff_cum; /* used for AV difference average computation */
161 double audio_diff_avg_coef;
162 double audio_diff_threshold;
163 int audio_diff_avg_count;
166 int audio_hw_buf_size;
167 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[AVCODEC_MAX_AUDIO_FRAME_SIZE * 4];
168 uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
171 unsigned int audio_buf_size; /* in bytes */
172 int audio_buf_index; /* in bytes */
173 int audio_write_buf_size;
174 AVPacket audio_pkt_temp;
176 struct AudioParams audio_src;
177 struct AudioParams audio_tgt;
178 struct SwrContext *swr_ctx;
179 double audio_current_pts;
180 double audio_current_pts_drift;
181 int frame_drops_early;
182 int frame_drops_late;
186 SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
188 int16_t sample_array[SAMPLE_ARRAY_SIZE];
189 int sample_array_index;
193 FFTSample *rdft_data;
196 SDL_Thread *subtitle_tid;
198 int subtitle_stream_changed;
199 AVStream *subtitle_st;
200 PacketQueue subtitleq;
201 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
202 int subpq_size, subpq_rindex, subpq_windex;
203 SDL_mutex *subpq_mutex;
204 SDL_cond *subpq_cond;
207 double frame_last_pts;
208 double frame_last_duration;
209 double frame_last_dropped_pts;
210 double frame_last_returned_time;
211 double frame_last_filter_delay;
212 int64_t frame_last_dropped_pos;
213 double video_clock; ///< pts of last decoded frame / predicted pts of next decoded frame
217 double video_current_pts; ///< current displayed pts (different from video_clock if frame fifos are used)
218 double video_current_pts_drift; ///< video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
219 int64_t video_current_pos; ///< current displayed file pos
220 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
221 int pictq_size, pictq_rindex, pictq_windex;
222 SDL_mutex *pictq_mutex;
223 SDL_cond *pictq_cond;
225 struct SwsContext *img_convert_ctx;
229 int width, height, xleft, ytop;
233 AVFilterContext *in_video_filter; ///< the first filter in the video chain
234 AVFilterContext *out_video_filter; ///< the last filter in the video chain
236 FrameBuffer *buffer_pool;
240 int last_video_stream, last_audio_stream, last_subtitle_stream;
242 SDL_cond *continue_read_thread;
245 /* options specified by the user */
246 static AVInputFormat *file_iformat;
247 static const char *input_filename;
248 static const char *window_title;
249 static int fs_screen_width;
250 static int fs_screen_height;
251 static int screen_width = 0;
252 static int screen_height = 0;
253 static int audio_disable;
254 static int video_disable;
255 static int wanted_stream[AVMEDIA_TYPE_NB] = {
256 [AVMEDIA_TYPE_AUDIO] = -1,
257 [AVMEDIA_TYPE_VIDEO] = -1,
258 [AVMEDIA_TYPE_SUBTITLE] = -1,
260 static int seek_by_bytes = -1;
261 static int display_disable;
262 static int show_status = 1;
263 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
264 static int64_t start_time = AV_NOPTS_VALUE;
265 static int64_t duration = AV_NOPTS_VALUE;
266 static int workaround_bugs = 1;
268 static int genpts = 0;
269 static int lowres = 0;
270 static int idct = FF_IDCT_AUTO;
271 static enum AVDiscard skip_frame = AVDISCARD_DEFAULT;
272 static enum AVDiscard skip_idct = AVDISCARD_DEFAULT;
273 static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT;
274 static int error_concealment = 3;
275 static int decoder_reorder_pts = -1;
277 static int exit_on_keydown;
278 static int exit_on_mousedown;
280 static int framedrop = -1;
281 static int infinite_buffer = -1;
282 static enum ShowMode show_mode = SHOW_MODE_NONE;
283 static const char *audio_codec_name;
284 static const char *subtitle_codec_name;
285 static const char *video_codec_name;
286 static int rdftspeed = 20;
288 static char *vfilters = NULL;
291 /* current context */
292 static int is_full_screen;
293 static int64_t audio_callback_time;
295 static AVPacket flush_pkt;
297 #define FF_ALLOC_EVENT (SDL_USEREVENT)
298 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
299 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
301 static SDL_Surface *screen;
303 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
305 static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt)
309 if (q->abort_request)
312 pkt1 = av_malloc(sizeof(AVPacketList));
321 q->last_pkt->next = pkt1;
324 q->size += pkt1->pkt.size + sizeof(*pkt1);
325 /* XXX: should duplicate packet data in DV case */
326 SDL_CondSignal(q->cond);
330 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
334 /* duplicate the packet */
335 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
338 SDL_LockMutex(q->mutex);
339 ret = packet_queue_put_private(q, pkt);
340 SDL_UnlockMutex(q->mutex);
342 if (pkt != &flush_pkt && ret < 0)
348 /* packet queue handling */
349 static void packet_queue_init(PacketQueue *q)
351 memset(q, 0, sizeof(PacketQueue));
352 q->mutex = SDL_CreateMutex();
353 q->cond = SDL_CreateCond();
354 q->abort_request = 1;
357 static void packet_queue_flush(PacketQueue *q)
359 AVPacketList *pkt, *pkt1;
361 SDL_LockMutex(q->mutex);
362 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
364 av_free_packet(&pkt->pkt);
371 SDL_UnlockMutex(q->mutex);
374 static void packet_queue_destroy(PacketQueue *q)
376 packet_queue_flush(q);
377 SDL_DestroyMutex(q->mutex);
378 SDL_DestroyCond(q->cond);
381 static void packet_queue_abort(PacketQueue *q)
383 SDL_LockMutex(q->mutex);
385 q->abort_request = 1;
387 SDL_CondSignal(q->cond);
389 SDL_UnlockMutex(q->mutex);
392 static void packet_queue_start(PacketQueue *q)
394 SDL_LockMutex(q->mutex);
395 q->abort_request = 0;
396 packet_queue_put_private(q, &flush_pkt);
397 SDL_UnlockMutex(q->mutex);
400 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
401 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
406 SDL_LockMutex(q->mutex);
409 if (q->abort_request) {
416 q->first_pkt = pkt1->next;
420 q->size -= pkt1->pkt.size + sizeof(*pkt1);
429 SDL_CondWait(q->cond, q->mutex);
432 SDL_UnlockMutex(q->mutex);
436 static inline void fill_rectangle(SDL_Surface *screen,
437 int x, int y, int w, int h, int color)
444 SDL_FillRect(screen, &rect, color);
447 #define ALPHA_BLEND(a, oldp, newp, s)\
448 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
450 #define RGBA_IN(r, g, b, a, s)\
452 unsigned int v = ((const uint32_t *)(s))[0];\
453 a = (v >> 24) & 0xff;\
454 r = (v >> 16) & 0xff;\
455 g = (v >> 8) & 0xff;\
459 #define YUVA_IN(y, u, v, a, s, pal)\
461 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
462 a = (val >> 24) & 0xff;\
463 y = (val >> 16) & 0xff;\
464 u = (val >> 8) & 0xff;\
468 #define YUVA_OUT(d, y, u, v, a)\
470 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
476 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
478 int wrap, wrap3, width2, skip2;
479 int y, u, v, a, u1, v1, a1, w, h;
480 uint8_t *lum, *cb, *cr;
483 int dstx, dsty, dstw, dsth;
485 dstw = av_clip(rect->w, 0, imgw);
486 dsth = av_clip(rect->h, 0, imgh);
487 dstx = av_clip(rect->x, 0, imgw - dstw);
488 dsty = av_clip(rect->y, 0, imgh - dsth);
489 lum = dst->data[0] + dsty * dst->linesize[0];
490 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
491 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
493 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
495 wrap = dst->linesize[0];
496 wrap3 = rect->pict.linesize[0];
497 p = rect->pict.data[0];
498 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
506 YUVA_IN(y, u, v, a, p, pal);
507 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
508 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
509 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
515 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
516 YUVA_IN(y, u, v, a, p, pal);
520 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
522 YUVA_IN(y, u, v, a, p + BPP, pal);
526 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
527 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
528 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
535 YUVA_IN(y, u, v, a, p, pal);
536 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
537 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
538 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
542 p += wrap3 - dstw * BPP;
543 lum += wrap - dstw - dstx;
544 cb += dst->linesize[1] - width2 - skip2;
545 cr += dst->linesize[2] - width2 - skip2;
547 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
553 YUVA_IN(y, u, v, a, p, pal);
557 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
560 YUVA_IN(y, u, v, a, p, pal);
564 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
565 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
566 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
572 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
573 YUVA_IN(y, u, v, a, p, pal);
577 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
579 YUVA_IN(y, u, v, a, p + BPP, pal);
583 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
587 YUVA_IN(y, u, v, a, p, pal);
591 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
593 YUVA_IN(y, u, v, a, p + BPP, pal);
597 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
599 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
600 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
604 p += -wrap3 + 2 * BPP;
608 YUVA_IN(y, u, v, a, p, pal);
612 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
615 YUVA_IN(y, u, v, a, p, pal);
619 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
620 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
621 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
627 p += wrap3 + (wrap3 - dstw * BPP);
628 lum += wrap + (wrap - dstw - dstx);
629 cb += dst->linesize[1] - width2 - skip2;
630 cr += dst->linesize[2] - width2 - skip2;
632 /* handle odd height */
639 YUVA_IN(y, u, v, a, p, pal);
640 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
641 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
642 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
648 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
649 YUVA_IN(y, u, v, a, p, pal);
653 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
655 YUVA_IN(y, u, v, a, p + BPP, pal);
659 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
660 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
661 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
668 YUVA_IN(y, u, v, a, p, pal);
669 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
670 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
671 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
676 static void free_subpicture(SubPicture *sp)
678 avsubtitle_free(&sp->sub);
681 static void calculate_display_rect(SDL_Rect *rect, int scr_xleft, int scr_ytop, int scr_width, int scr_height, VideoPicture *vp)
684 int width, height, x, y;
686 if (vp->sample_aspect_ratio.num == 0)
689 aspect_ratio = av_q2d(vp->sample_aspect_ratio);
691 if (aspect_ratio <= 0.0)
693 aspect_ratio *= (float)vp->width / (float)vp->height;
695 /* XXX: we suppose the screen has a 1.0 pixel ratio */
697 width = ((int)rint(height * aspect_ratio)) & ~1;
698 if (width > scr_width) {
700 height = ((int)rint(width / aspect_ratio)) & ~1;
702 x = (scr_width - width) / 2;
703 y = (scr_height - height) / 2;
704 rect->x = scr_xleft + x;
705 rect->y = scr_ytop + y;
706 rect->w = FFMAX(width, 1);
707 rect->h = FFMAX(height, 1);
710 static void video_image_display(VideoState *is)
718 vp = &is->pictq[is->pictq_rindex];
720 if (is->subtitle_st) {
721 if (is->subpq_size > 0) {
722 sp = &is->subpq[is->subpq_rindex];
724 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
725 SDL_LockYUVOverlay (vp->bmp);
727 pict.data[0] = vp->bmp->pixels[0];
728 pict.data[1] = vp->bmp->pixels[2];
729 pict.data[2] = vp->bmp->pixels[1];
731 pict.linesize[0] = vp->bmp->pitches[0];
732 pict.linesize[1] = vp->bmp->pitches[2];
733 pict.linesize[2] = vp->bmp->pitches[1];
735 for (i = 0; i < sp->sub.num_rects; i++)
736 blend_subrect(&pict, sp->sub.rects[i],
737 vp->bmp->w, vp->bmp->h);
739 SDL_UnlockYUVOverlay (vp->bmp);
744 calculate_display_rect(&rect, is->xleft, is->ytop, is->width, is->height, vp);
746 SDL_DisplayYUVOverlay(vp->bmp, &rect);
750 static inline int compute_mod(int a, int b)
752 return a < 0 ? a%b + b : a%b;
755 static void video_audio_display(VideoState *s)
757 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
758 int ch, channels, h, h2, bgcolor, fgcolor;
760 int rdft_bits, nb_freq;
762 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
764 nb_freq = 1 << (rdft_bits - 1);
766 /* compute display index : center on currently output samples */
767 channels = s->audio_tgt.channels;
768 nb_display_channels = channels;
770 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
772 delay = s->audio_write_buf_size;
775 /* to be more precise, we take into account the time spent since
776 the last buffer computation */
777 if (audio_callback_time) {
778 time_diff = av_gettime() - audio_callback_time;
779 delay -= (time_diff * s->audio_tgt.freq) / 1000000;
782 delay += 2 * data_used;
783 if (delay < data_used)
786 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
787 if (s->show_mode == SHOW_MODE_WAVES) {
789 for (i = 0; i < 1000; i += channels) {
790 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
791 int a = s->sample_array[idx];
792 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
793 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
794 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
796 if (h < score && (b ^ c) < 0) {
803 s->last_i_start = i_start;
805 i_start = s->last_i_start;
808 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
809 if (s->show_mode == SHOW_MODE_WAVES) {
810 fill_rectangle(screen,
811 s->xleft, s->ytop, s->width, s->height,
814 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
816 /* total height for one channel */
817 h = s->height / nb_display_channels;
818 /* graph height / 2 */
820 for (ch = 0; ch < nb_display_channels; ch++) {
822 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
823 for (x = 0; x < s->width; x++) {
824 y = (s->sample_array[i] * h2) >> 15;
831 fill_rectangle(screen,
832 s->xleft + x, ys, 1, y,
835 if (i >= SAMPLE_ARRAY_SIZE)
836 i -= SAMPLE_ARRAY_SIZE;
840 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
842 for (ch = 1; ch < nb_display_channels; ch++) {
843 y = s->ytop + ch * h;
844 fill_rectangle(screen,
845 s->xleft, y, s->width, 1,
848 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
850 nb_display_channels= FFMIN(nb_display_channels, 2);
851 if (rdft_bits != s->rdft_bits) {
852 av_rdft_end(s->rdft);
853 av_free(s->rdft_data);
854 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
855 s->rdft_bits = rdft_bits;
856 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
860 for (ch = 0; ch < nb_display_channels; ch++) {
861 data[ch] = s->rdft_data + 2 * nb_freq * ch;
863 for (x = 0; x < 2 * nb_freq; x++) {
864 double w = (x-nb_freq) * (1.0 / nb_freq);
865 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
867 if (i >= SAMPLE_ARRAY_SIZE)
868 i -= SAMPLE_ARRAY_SIZE;
870 av_rdft_calc(s->rdft, data[ch]);
872 // least efficient way to do this, we should of course directly access it but its more than fast enough
873 for (y = 0; y < s->height; y++) {
874 double w = 1 / sqrt(nb_freq);
875 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]));
876 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
877 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
880 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
882 fill_rectangle(screen,
883 s->xpos, s->height-y, 1, 1,
887 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
890 if (s->xpos >= s->width)
895 static void stream_close(VideoState *is)
899 /* XXX: use a special url_shutdown call to abort parse cleanly */
900 is->abort_request = 1;
901 SDL_WaitThread(is->read_tid, NULL);
902 SDL_WaitThread(is->refresh_tid, NULL);
903 packet_queue_destroy(&is->videoq);
904 packet_queue_destroy(&is->audioq);
905 packet_queue_destroy(&is->subtitleq);
907 /* free all pictures */
908 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
911 avfilter_unref_bufferp(&vp->picref);
914 SDL_FreeYUVOverlay(vp->bmp);
918 SDL_DestroyMutex(is->pictq_mutex);
919 SDL_DestroyCond(is->pictq_cond);
920 SDL_DestroyMutex(is->subpq_mutex);
921 SDL_DestroyCond(is->subpq_cond);
922 SDL_DestroyCond(is->continue_read_thread);
924 if (is->img_convert_ctx)
925 sws_freeContext(is->img_convert_ctx);
930 static void do_exit(VideoState *is)
935 av_lockmgr_register(NULL);
941 avformat_network_deinit();
945 av_log(NULL, AV_LOG_QUIET, "%s", "");
949 static void sigterm_handler(int sig)
954 static int video_open(VideoState *is, int force_set_video_mode)
956 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
958 VideoPicture *vp = &is->pictq[is->pictq_rindex];
961 if (is_full_screen) flags |= SDL_FULLSCREEN;
962 else flags |= SDL_RESIZABLE;
964 if (is_full_screen && fs_screen_width) {
966 h = fs_screen_height;
967 } else if (!is_full_screen && screen_width) {
970 } else if (vp->width) {
971 calculate_display_rect(&rect, 0, 0, INT_MAX, vp->height, vp);
978 if (screen && is->width == screen->w && screen->w == w
979 && is->height== screen->h && screen->h == h && !force_set_video_mode)
981 screen = SDL_SetVideoMode(w, h, 0, flags);
983 fprintf(stderr, "SDL: could not set video mode - exiting\n");
987 window_title = input_filename;
988 SDL_WM_SetCaption(window_title, window_title);
990 is->width = screen->w;
991 is->height = screen->h;
996 /* display the current picture, if any */
997 static void video_display(VideoState *is)
1001 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
1002 video_audio_display(is);
1003 else if (is->video_st)
1004 video_image_display(is);
1007 static int refresh_thread(void *opaque)
1009 VideoState *is= opaque;
1010 while (!is->abort_request) {
1012 event.type = FF_REFRESH_EVENT;
1013 event.user.data1 = opaque;
1014 if (!is->refresh && (!is->paused || is->force_refresh)) {
1016 SDL_PushEvent(&event);
1018 //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
1019 av_usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
1024 /* get the current audio clock value */
1025 static double get_audio_clock(VideoState *is)
1028 return is->audio_current_pts;
1030 return is->audio_current_pts_drift + av_gettime() / 1000000.0;
1034 /* get the current video clock value */
1035 static double get_video_clock(VideoState *is)
1038 return is->video_current_pts;
1040 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1044 /* get the current external clock value */
1045 static double get_external_clock(VideoState *is)
1049 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1052 /* get the current master clock value */
1053 static double get_master_clock(VideoState *is)
1057 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1059 val = get_video_clock(is);
1061 val = get_audio_clock(is);
1062 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1064 val = get_audio_clock(is);
1066 val = get_video_clock(is);
1068 val = get_external_clock(is);
1073 /* seek in the stream */
1074 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1076 if (!is->seek_req) {
1079 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1081 is->seek_flags |= AVSEEK_FLAG_BYTE;
1086 /* pause or resume the video */
1087 static void stream_toggle_pause(VideoState *is)
1090 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1091 if (is->read_pause_return != AVERROR(ENOSYS)) {
1092 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1094 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1096 is->paused = !is->paused;
1099 static double compute_target_delay(double delay, VideoState *is)
1101 double sync_threshold, diff;
1103 /* update delay to follow master synchronisation source */
1104 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1105 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1106 /* if video is slave, we try to correct big delays by
1107 duplicating or deleting a frame */
1108 diff = get_video_clock(is) - get_master_clock(is);
1110 /* skip or repeat frame. We take into account the
1111 delay to compute the threshold. I still don't know
1112 if it is the best guess */
1113 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1114 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1115 if (diff <= -sync_threshold)
1117 else if (diff >= sync_threshold)
1122 av_dlog(NULL, "video: delay=%0.3f A-V=%f\n",
1128 static void pictq_next_picture(VideoState *is) {
1129 /* update queue size and signal for next picture */
1130 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1131 is->pictq_rindex = 0;
1133 SDL_LockMutex(is->pictq_mutex);
1135 SDL_CondSignal(is->pictq_cond);
1136 SDL_UnlockMutex(is->pictq_mutex);
1139 static void pictq_prev_picture(VideoState *is) {
1140 VideoPicture *prevvp;
1141 /* update queue size and signal for the previous picture */
1142 prevvp = &is->pictq[(is->pictq_rindex + VIDEO_PICTURE_QUEUE_SIZE - 1) % VIDEO_PICTURE_QUEUE_SIZE];
1143 if (prevvp->allocated && !prevvp->skip) {
1144 SDL_LockMutex(is->pictq_mutex);
1145 if (is->pictq_size < VIDEO_PICTURE_QUEUE_SIZE - 1) {
1146 if (--is->pictq_rindex == -1)
1147 is->pictq_rindex = VIDEO_PICTURE_QUEUE_SIZE - 1;
1150 SDL_CondSignal(is->pictq_cond);
1151 SDL_UnlockMutex(is->pictq_mutex);
1155 static void update_video_pts(VideoState *is, double pts, int64_t pos) {
1156 double time = av_gettime() / 1000000.0;
1157 /* update current video pts */
1158 is->video_current_pts = pts;
1159 is->video_current_pts_drift = is->video_current_pts - time;
1160 is->video_current_pos = pos;
1161 is->frame_last_pts = pts;
1164 /* called to display each frame */
1165 static void video_refresh(void *opaque)
1167 VideoState *is = opaque;
1171 SubPicture *sp, *sp2;
1174 if (is->force_refresh)
1175 pictq_prev_picture(is);
1177 if (is->pictq_size == 0) {
1178 SDL_LockMutex(is->pictq_mutex);
1179 if (is->frame_last_dropped_pts != AV_NOPTS_VALUE && is->frame_last_dropped_pts > is->frame_last_pts) {
1180 update_video_pts(is, is->frame_last_dropped_pts, is->frame_last_dropped_pos);
1181 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1183 SDL_UnlockMutex(is->pictq_mutex);
1184 // nothing to do, no picture to display in the que
1186 double last_duration, duration, delay;
1187 /* dequeue the picture */
1188 vp = &is->pictq[is->pictq_rindex];
1191 pictq_next_picture(is);
1198 /* compute nominal last_duration */
1199 last_duration = vp->pts - is->frame_last_pts;
1200 if (last_duration > 0 && last_duration < 10.0) {
1201 /* if duration of the last frame was sane, update last_duration in video state */
1202 is->frame_last_duration = last_duration;
1204 delay = compute_target_delay(is->frame_last_duration, is);
1206 time= av_gettime()/1000000.0;
1207 if (time < is->frame_timer + delay)
1211 is->frame_timer += delay * FFMAX(1, floor((time-is->frame_timer) / delay));
1213 SDL_LockMutex(is->pictq_mutex);
1214 update_video_pts(is, vp->pts, vp->pos);
1215 SDL_UnlockMutex(is->pictq_mutex);
1217 if (is->pictq_size > 1) {
1218 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1219 duration = nextvp->pts - vp->pts;
1220 if((framedrop>0 || (framedrop && is->audio_st)) && time > is->frame_timer + duration){
1221 is->frame_drops_late++;
1222 pictq_next_picture(is);
1227 if (is->subtitle_st) {
1228 if (is->subtitle_stream_changed) {
1229 SDL_LockMutex(is->subpq_mutex);
1231 while (is->subpq_size) {
1232 free_subpicture(&is->subpq[is->subpq_rindex]);
1234 /* update queue size and signal for next picture */
1235 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1236 is->subpq_rindex = 0;
1240 is->subtitle_stream_changed = 0;
1242 SDL_CondSignal(is->subpq_cond);
1243 SDL_UnlockMutex(is->subpq_mutex);
1245 if (is->subpq_size > 0) {
1246 sp = &is->subpq[is->subpq_rindex];
1248 if (is->subpq_size > 1)
1249 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1253 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1254 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1256 free_subpicture(sp);
1258 /* update queue size and signal for next picture */
1259 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1260 is->subpq_rindex = 0;
1262 SDL_LockMutex(is->subpq_mutex);
1264 SDL_CondSignal(is->subpq_cond);
1265 SDL_UnlockMutex(is->subpq_mutex);
1272 /* display picture */
1273 if (!display_disable)
1276 pictq_next_picture(is);
1278 } else if (is->audio_st) {
1279 /* draw the next audio frame */
1281 /* if only audio stream, then display the audio bars (better
1282 than nothing, just to test the implementation */
1284 /* display picture */
1285 if (!display_disable)
1288 is->force_refresh = 0;
1290 static int64_t last_time;
1292 int aqsize, vqsize, sqsize;
1295 cur_time = av_gettime();
1296 if (!last_time || (cur_time - last_time) >= 30000) {
1301 aqsize = is->audioq.size;
1303 vqsize = is->videoq.size;
1304 if (is->subtitle_st)
1305 sqsize = is->subtitleq.size;
1307 if (is->audio_st && is->video_st)
1308 av_diff = get_audio_clock(is) - get_video_clock(is);
1309 printf("%7.2f A-V:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1310 get_master_clock(is),
1312 is->frame_drops_early + is->frame_drops_late,
1316 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1317 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1319 last_time = cur_time;
1324 /* allocate a picture (needs to do that in main thread to avoid
1325 potential locking problems */
1326 static void alloc_picture(VideoState *is)
1330 vp = &is->pictq[is->pictq_windex];
1333 SDL_FreeYUVOverlay(vp->bmp);
1336 avfilter_unref_bufferp(&vp->picref);
1341 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1344 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1345 /* SDL allocates a buffer smaller than requested if the video
1346 * overlay hardware is unable to support the requested size. */
1347 fprintf(stderr, "Error: the video system does not support an image\n"
1348 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1349 "to reduce the image size.\n", vp->width, vp->height );
1353 SDL_LockMutex(is->pictq_mutex);
1355 SDL_CondSignal(is->pictq_cond);
1356 SDL_UnlockMutex(is->pictq_mutex);
1359 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1362 double frame_delay, pts = pts1;
1364 /* compute the exact PTS for the picture if it is omitted in the stream
1365 * pts1 is the dts of the pkt / pts of the frame */
1367 /* update video clock with pts, if present */
1368 is->video_clock = pts;
1370 pts = is->video_clock;
1372 /* update video clock for next frame */
1373 frame_delay = av_q2d(is->video_st->codec->time_base);
1374 /* for MPEG2, the frame can be repeated, so we update the
1375 clock accordingly */
1376 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1377 is->video_clock += frame_delay;
1379 #if defined(DEBUG_SYNC) && 0
1380 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1381 av_get_picture_type_char(src_frame->pict_type), pts, pts1);
1384 /* wait until we have space to put a new picture */
1385 SDL_LockMutex(is->pictq_mutex);
1387 /* keep the last already displayed picture in the queue */
1388 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE - 2 &&
1389 !is->videoq.abort_request) {
1390 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1392 SDL_UnlockMutex(is->pictq_mutex);
1394 if (is->videoq.abort_request)
1397 vp = &is->pictq[is->pictq_windex];
1400 vp->sample_aspect_ratio = ((AVFilterBufferRef *)src_frame->opaque)->video->sample_aspect_ratio;
1402 vp->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, src_frame);
1405 /* alloc or resize hardware picture buffer */
1406 if (!vp->bmp || vp->reallocate || !vp->allocated ||
1407 vp->width != src_frame->width ||
1408 vp->height != src_frame->height) {
1413 vp->width = src_frame->width;
1414 vp->height = src_frame->height;
1416 /* the allocation must be done in the main thread to avoid
1417 locking problems. */
1418 event.type = FF_ALLOC_EVENT;
1419 event.user.data1 = is;
1420 SDL_PushEvent(&event);
1422 /* wait until the picture is allocated */
1423 SDL_LockMutex(is->pictq_mutex);
1424 while (!vp->allocated && !is->videoq.abort_request) {
1425 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1427 /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */
1428 if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) {
1429 while (!vp->allocated) {
1430 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1433 SDL_UnlockMutex(is->pictq_mutex);
1435 if (is->videoq.abort_request)
1439 /* if the frame is not skipped, then display it */
1441 AVPicture pict = { { 0 } };
1443 avfilter_unref_bufferp(&vp->picref);
1444 vp->picref = src_frame->opaque;
1447 /* get a pointer on the bitmap */
1448 SDL_LockYUVOverlay (vp->bmp);
1450 pict.data[0] = vp->bmp->pixels[0];
1451 pict.data[1] = vp->bmp->pixels[2];
1452 pict.data[2] = vp->bmp->pixels[1];
1454 pict.linesize[0] = vp->bmp->pitches[0];
1455 pict.linesize[1] = vp->bmp->pitches[2];
1456 pict.linesize[2] = vp->bmp->pitches[1];
1459 // FIXME use direct rendering
1460 av_picture_copy(&pict, (AVPicture *)src_frame,
1461 src_frame->format, vp->width, vp->height);
1463 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1464 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1465 vp->width, vp->height, src_frame->format, vp->width, vp->height,
1466 PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1467 if (is->img_convert_ctx == NULL) {
1468 fprintf(stderr, "Cannot initialize the conversion context\n");
1471 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1472 0, vp->height, pict.data, pict.linesize);
1474 /* update the bitmap content */
1475 SDL_UnlockYUVOverlay(vp->bmp);
1481 /* now we can update the picture count */
1482 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1483 is->pictq_windex = 0;
1484 SDL_LockMutex(is->pictq_mutex);
1486 SDL_UnlockMutex(is->pictq_mutex);
1491 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1495 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1498 if (pkt->data == flush_pkt.data) {
1499 avcodec_flush_buffers(is->video_st->codec);
1501 SDL_LockMutex(is->pictq_mutex);
1502 // Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1503 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1504 is->pictq[i].skip = 1;
1506 while (is->pictq_size && !is->videoq.abort_request) {
1507 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1509 is->video_current_pos = -1;
1510 is->frame_last_pts = AV_NOPTS_VALUE;
1511 is->frame_last_duration = 0;
1512 is->frame_timer = (double)av_gettime() / 1000000.0;
1513 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1514 SDL_UnlockMutex(is->pictq_mutex);
1519 if(avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt) < 0)
1525 if (decoder_reorder_pts == -1) {
1526 *pts = av_frame_get_best_effort_timestamp(frame);
1527 } else if (decoder_reorder_pts) {
1528 *pts = frame->pkt_pts;
1530 *pts = frame->pkt_dts;
1533 if (*pts == AV_NOPTS_VALUE) {
1537 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) || is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK) &&
1538 (framedrop>0 || (framedrop && is->audio_st))) {
1539 SDL_LockMutex(is->pictq_mutex);
1540 if (is->frame_last_pts != AV_NOPTS_VALUE && *pts) {
1541 double clockdiff = get_video_clock(is) - get_master_clock(is);
1542 double dpts = av_q2d(is->video_st->time_base) * *pts;
1543 double ptsdiff = dpts - is->frame_last_pts;
1544 if (fabs(clockdiff) < AV_NOSYNC_THRESHOLD &&
1545 ptsdiff > 0 && ptsdiff < AV_NOSYNC_THRESHOLD &&
1546 clockdiff + ptsdiff - is->frame_last_filter_delay < 0) {
1547 is->frame_last_dropped_pos = pkt->pos;
1548 is->frame_last_dropped_pts = dpts;
1549 is->frame_drops_early++;
1553 SDL_UnlockMutex(is->pictq_mutex);
1562 static int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph,
1563 AVFilterContext *source_ctx, AVFilterContext *sink_ctx)
1566 AVFilterInOut *outputs = NULL, *inputs = NULL;
1569 outputs = avfilter_inout_alloc();
1570 inputs = avfilter_inout_alloc();
1571 if (!outputs || !inputs) {
1572 ret = AVERROR(ENOMEM);
1576 outputs->name = av_strdup("in");
1577 outputs->filter_ctx = source_ctx;
1578 outputs->pad_idx = 0;
1579 outputs->next = NULL;
1581 inputs->name = av_strdup("out");
1582 inputs->filter_ctx = sink_ctx;
1583 inputs->pad_idx = 0;
1584 inputs->next = NULL;
1586 if ((ret = avfilter_graph_parse(graph, filtergraph, &inputs, &outputs, NULL)) < 0)
1589 if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0)
1593 return avfilter_graph_config(graph, NULL);
1595 avfilter_inout_free(&outputs);
1596 avfilter_inout_free(&inputs);
1600 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1602 static const enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
1603 char sws_flags_str[128];
1604 char buffersrc_args[256];
1606 AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
1607 AVFilterContext *filt_src = NULL, *filt_out = NULL, *filt_format, *filt_crop;
1608 AVCodecContext *codec = is->video_st->codec;
1610 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1611 graph->scale_sws_opts = av_strdup(sws_flags_str);
1613 snprintf(buffersrc_args, sizeof(buffersrc_args),
1614 "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
1615 codec->width, codec->height, codec->pix_fmt,
1616 is->video_st->time_base.num, is->video_st->time_base.den,
1617 codec->sample_aspect_ratio.num, codec->sample_aspect_ratio.den);
1619 if ((ret = avfilter_graph_create_filter(&filt_src,
1620 avfilter_get_by_name("buffer"),
1621 "ffplay_buffer", buffersrc_args, NULL,
1625 buffersink_params->pixel_fmts = pix_fmts;
1626 ret = avfilter_graph_create_filter(&filt_out,
1627 avfilter_get_by_name("ffbuffersink"),
1628 "ffplay_buffersink", NULL, buffersink_params, graph);
1629 av_freep(&buffersink_params);
1633 /* SDL YUV code is not handling odd width/height for some driver
1634 * combinations, therefore we crop the picture to an even width/height. */
1635 if ((ret = avfilter_graph_create_filter(&filt_crop,
1636 avfilter_get_by_name("crop"),
1637 "ffplay_crop", "floor(in_w/2)*2:floor(in_h/2)*2", NULL, graph)) < 0)
1639 if ((ret = avfilter_graph_create_filter(&filt_format,
1640 avfilter_get_by_name("format"),
1641 "format", "yuv420p", NULL, graph)) < 0)
1643 if ((ret = avfilter_link(filt_crop, 0, filt_format, 0)) < 0)
1645 if ((ret = avfilter_link(filt_format, 0, filt_out, 0)) < 0)
1648 if ((ret = configure_filtergraph(graph, vfilters, filt_src, filt_crop)) < 0)
1651 is->in_video_filter = filt_src;
1652 is->out_video_filter = filt_out;
1657 #endif /* CONFIG_AVFILTER */
1659 static int video_thread(void *arg)
1661 AVPacket pkt = { 0 };
1662 VideoState *is = arg;
1663 AVFrame *frame = avcodec_alloc_frame();
1664 int64_t pts_int = AV_NOPTS_VALUE, pos = -1;
1669 AVCodecContext *codec = is->video_st->codec;
1670 AVFilterGraph *graph = avfilter_graph_alloc();
1671 AVFilterContext *filt_out = NULL, *filt_in = NULL;
1674 enum PixelFormat last_format = -2;
1676 if (codec->codec->capabilities & CODEC_CAP_DR1) {
1678 codec->get_buffer = codec_get_buffer;
1679 codec->release_buffer = codec_release_buffer;
1680 codec->opaque = &is->buffer_pool;
1686 AVFilterBufferRef *picref;
1689 while (is->paused && !is->videoq.abort_request)
1692 avcodec_get_frame_defaults(frame);
1693 av_free_packet(&pkt);
1695 ret = get_video_frame(is, frame, &pts_int, &pkt);
1703 if ( last_w != is->video_st->codec->width
1704 || last_h != is->video_st->codec->height
1705 || last_format != is->video_st->codec->pix_fmt) {
1706 av_log(NULL, AV_LOG_INFO, "Frame changed from size:%dx%d to size:%dx%d\n",
1707 last_w, last_h, is->video_st->codec->width, is->video_st->codec->height);
1708 avfilter_graph_free(&graph);
1709 graph = avfilter_graph_alloc();
1710 if ((ret = configure_video_filters(graph, is, vfilters)) < 0) {
1712 event.type = FF_QUIT_EVENT;
1713 event.user.data1 = is;
1714 SDL_PushEvent(&event);
1715 av_free_packet(&pkt);
1718 filt_in = is->in_video_filter;
1719 filt_out = is->out_video_filter;
1720 last_w = is->video_st->codec->width;
1721 last_h = is->video_st->codec->height;
1722 last_format = is->video_st->codec->pix_fmt;
1725 frame->pts = pts_int;
1726 frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame);
1727 if (is->use_dr1 && frame->opaque) {
1728 FrameBuffer *buf = frame->opaque;
1729 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1730 frame->data, frame->linesize,
1731 AV_PERM_READ | AV_PERM_PRESERVE,
1732 frame->width, frame->height,
1735 avfilter_copy_frame_props(fb, frame);
1736 fb->buf->priv = buf;
1737 fb->buf->free = filter_release_buffer;
1740 av_buffersrc_add_ref(filt_in, fb, AV_BUFFERSRC_FLAG_NO_COPY);
1743 av_buffersrc_write_frame(filt_in, frame);
1745 av_free_packet(&pkt);
1748 is->frame_last_returned_time = av_gettime() / 1000000.0;
1750 ret = av_buffersink_get_buffer_ref(filt_out, &picref, 0);
1756 is->frame_last_filter_delay = av_gettime() / 1000000.0 - is->frame_last_returned_time;
1757 if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0)
1758 is->frame_last_filter_delay = 0;
1760 avfilter_copy_buf_props(frame, picref);
1762 pts_int = picref->pts;
1763 tb = filt_out->inputs[0]->time_base;
1765 frame->opaque = picref;
1767 if (av_cmp_q(tb, is->video_st->time_base)) {
1768 av_unused int64_t pts1 = pts_int;
1769 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1770 av_dlog(NULL, "video_thread(): "
1771 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1772 tb.num, tb.den, pts1,
1773 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1775 pts = pts_int * av_q2d(is->video_st->time_base);
1776 ret = queue_picture(is, frame, pts, pos);
1779 pts = pts_int * av_q2d(is->video_st->time_base);
1780 ret = queue_picture(is, frame, pts, pkt.pos);
1787 stream_toggle_pause(is);
1790 avcodec_flush_buffers(is->video_st->codec);
1792 avfilter_graph_free(&graph);
1794 av_free_packet(&pkt);
1795 avcodec_free_frame(&frame);
1799 static int subtitle_thread(void *arg)
1801 VideoState *is = arg;
1803 AVPacket pkt1, *pkt = &pkt1;
1807 int r, g, b, y, u, v, a;
1810 while (is->paused && !is->subtitleq.abort_request) {
1813 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1816 if (pkt->data == flush_pkt.data) {
1817 avcodec_flush_buffers(is->subtitle_st->codec);
1820 SDL_LockMutex(is->subpq_mutex);
1821 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1822 !is->subtitleq.abort_request) {
1823 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1825 SDL_UnlockMutex(is->subpq_mutex);
1827 if (is->subtitleq.abort_request)
1830 sp = &is->subpq[is->subpq_windex];
1832 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1833 this packet, if any */
1835 if (pkt->pts != AV_NOPTS_VALUE)
1836 pts = av_q2d(is->subtitle_st->time_base) * pkt->pts;
1838 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1839 &got_subtitle, pkt);
1840 if (got_subtitle && sp->sub.format == 0) {
1841 if (sp->sub.pts != AV_NOPTS_VALUE)
1842 pts = sp->sub.pts / (double)AV_TIME_BASE;
1845 for (i = 0; i < sp->sub.num_rects; i++)
1847 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1849 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1850 y = RGB_TO_Y_CCIR(r, g, b);
1851 u = RGB_TO_U_CCIR(r, g, b, 0);
1852 v = RGB_TO_V_CCIR(r, g, b, 0);
1853 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1857 /* now we can update the picture count */
1858 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1859 is->subpq_windex = 0;
1860 SDL_LockMutex(is->subpq_mutex);
1862 SDL_UnlockMutex(is->subpq_mutex);
1864 av_free_packet(pkt);
1869 /* copy samples for viewing in editor window */
1870 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1874 size = samples_size / sizeof(short);
1876 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1879 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1881 is->sample_array_index += len;
1882 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1883 is->sample_array_index = 0;
1888 /* return the wanted number of samples to get better sync if sync_type is video
1889 * or external master clock */
1890 static int synchronize_audio(VideoState *is, int nb_samples)
1892 int wanted_nb_samples = nb_samples;
1894 /* if not master, then we try to remove or add samples to correct the clock */
1895 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1896 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1897 double diff, avg_diff;
1898 int min_nb_samples, max_nb_samples;
1900 diff = get_audio_clock(is) - get_master_clock(is);
1902 if (diff < AV_NOSYNC_THRESHOLD) {
1903 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1904 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1905 /* not enough measures to have a correct estimate */
1906 is->audio_diff_avg_count++;
1908 /* estimate the A-V difference */
1909 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1911 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1912 wanted_nb_samples = nb_samples + (int)(diff * is->audio_src.freq);
1913 min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100));
1914 max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100));
1915 wanted_nb_samples = FFMIN(FFMAX(wanted_nb_samples, min_nb_samples), max_nb_samples);
1917 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1918 diff, avg_diff, wanted_nb_samples - nb_samples,
1919 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1922 /* too big difference : may be initial PTS errors, so
1924 is->audio_diff_avg_count = 0;
1925 is->audio_diff_cum = 0;
1929 return wanted_nb_samples;
1932 /* decode one audio frame and returns its uncompressed size */
1933 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1935 AVPacket *pkt_temp = &is->audio_pkt_temp;
1936 AVPacket *pkt = &is->audio_pkt;
1937 AVCodecContext *dec = is->audio_st->codec;
1938 int len1, len2, data_size, resampled_data_size;
1939 int64_t dec_channel_layout;
1943 int flush_complete = 0;
1944 int wanted_nb_samples;
1947 /* NOTE: the audio packet can contain several frames */
1948 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
1950 if (!(is->frame = avcodec_alloc_frame()))
1951 return AVERROR(ENOMEM);
1953 avcodec_get_frame_defaults(is->frame);
1961 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
1963 /* if error, we skip the frame */
1968 pkt_temp->data += len1;
1969 pkt_temp->size -= len1;
1972 /* stop sending empty packets if the decoder is finished */
1973 if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
1977 data_size = av_samples_get_buffer_size(NULL, dec->channels,
1978 is->frame->nb_samples,
1979 dec->sample_fmt, 1);
1981 dec_channel_layout =
1982 (dec->channel_layout && dec->channels == av_get_channel_layout_nb_channels(dec->channel_layout)) ?
1983 dec->channel_layout : av_get_default_channel_layout(dec->channels);
1984 wanted_nb_samples = synchronize_audio(is, is->frame->nb_samples);
1986 if (dec->sample_fmt != is->audio_src.fmt ||
1987 dec_channel_layout != is->audio_src.channel_layout ||
1988 dec->sample_rate != is->audio_src.freq ||
1989 (wanted_nb_samples != is->frame->nb_samples && !is->swr_ctx)) {
1990 swr_free(&is->swr_ctx);
1991 is->swr_ctx = swr_alloc_set_opts(NULL,
1992 is->audio_tgt.channel_layout, is->audio_tgt.fmt, is->audio_tgt.freq,
1993 dec_channel_layout, dec->sample_fmt, dec->sample_rate,
1995 if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
1996 fprintf(stderr, "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
1997 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels,
1998 is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels);
2001 is->audio_src.channel_layout = dec_channel_layout;
2002 is->audio_src.channels = dec->channels;
2003 is->audio_src.freq = dec->sample_rate;
2004 is->audio_src.fmt = dec->sample_fmt;
2008 const uint8_t **in = (const uint8_t **)is->frame->extended_data;
2009 uint8_t *out[] = {is->audio_buf2};
2010 int out_count = sizeof(is->audio_buf2) / is->audio_tgt.channels / av_get_bytes_per_sample(is->audio_tgt.fmt);
2011 if (wanted_nb_samples != is->frame->nb_samples) {
2012 if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - is->frame->nb_samples) * is->audio_tgt.freq / dec->sample_rate,
2013 wanted_nb_samples * is->audio_tgt.freq / dec->sample_rate) < 0) {
2014 fprintf(stderr, "swr_set_compensation() failed\n");
2018 len2 = swr_convert(is->swr_ctx, out, out_count, in, is->frame->nb_samples);
2020 fprintf(stderr, "swr_convert() failed\n");
2023 if (len2 == out_count) {
2024 fprintf(stderr, "warning: audio buffer is probably too small\n");
2025 swr_init(is->swr_ctx);
2027 is->audio_buf = is->audio_buf2;
2028 resampled_data_size = len2 * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
2030 is->audio_buf = is->frame->data[0];
2031 resampled_data_size = data_size;
2034 /* if no pts, then compute it */
2035 pts = is->audio_clock;
2037 is->audio_clock += (double)data_size /
2038 (dec->channels * dec->sample_rate * av_get_bytes_per_sample(dec->sample_fmt));
2041 static double last_clock;
2042 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2043 is->audio_clock - last_clock,
2044 is->audio_clock, pts);
2045 last_clock = is->audio_clock;
2048 return resampled_data_size;
2051 /* free the current packet */
2053 av_free_packet(pkt);
2054 memset(pkt_temp, 0, sizeof(*pkt_temp));
2056 if (is->paused || is->audioq.abort_request) {
2060 if (is->audioq.nb_packets == 0)
2061 SDL_CondSignal(is->continue_read_thread);
2063 /* read next packet */
2064 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
2067 if (pkt->data == flush_pkt.data) {
2068 avcodec_flush_buffers(dec);
2074 /* if update the audio clock with the pts */
2075 if (pkt->pts != AV_NOPTS_VALUE) {
2076 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2081 /* prepare a new audio buffer */
2082 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2084 VideoState *is = opaque;
2085 int audio_size, len1;
2087 int frame_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, 1, is->audio_tgt.fmt, 1);
2090 audio_callback_time = av_gettime();
2093 if (is->audio_buf_index >= is->audio_buf_size) {
2094 audio_size = audio_decode_frame(is, &pts);
2095 if (audio_size < 0) {
2096 /* if error, just output silence */
2097 is->audio_buf = is->silence_buf;
2098 is->audio_buf_size = sizeof(is->silence_buf) / frame_size * frame_size;
2100 if (is->show_mode != SHOW_MODE_VIDEO)
2101 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2102 is->audio_buf_size = audio_size;
2104 is->audio_buf_index = 0;
2106 len1 = is->audio_buf_size - is->audio_buf_index;
2109 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2112 is->audio_buf_index += len1;
2114 bytes_per_sec = is->audio_tgt.freq * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
2115 is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
2116 /* Let's assume the audio driver that is used by SDL has two periods. */
2117 is->audio_current_pts = is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec;
2118 is->audio_current_pts_drift = is->audio_current_pts - audio_callback_time / 1000000.0;
2121 static int audio_open(void *opaque, int64_t wanted_channel_layout, int wanted_nb_channels, int wanted_sample_rate, struct AudioParams *audio_hw_params)
2123 SDL_AudioSpec wanted_spec, spec;
2125 const int next_nb_channels[] = {0, 0, 1, 6, 2, 6, 4, 6};
2127 env = SDL_getenv("SDL_AUDIO_CHANNELS");
2129 wanted_nb_channels = atoi(env);
2130 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2132 if (!wanted_channel_layout || wanted_nb_channels != av_get_channel_layout_nb_channels(wanted_channel_layout)) {
2133 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2134 wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX;
2136 wanted_spec.channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
2137 wanted_spec.freq = wanted_sample_rate;
2138 if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) {
2139 fprintf(stderr, "Invalid sample rate or channel count!\n");
2142 wanted_spec.format = AUDIO_S16SYS;
2143 wanted_spec.silence = 0;
2144 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2145 wanted_spec.callback = sdl_audio_callback;
2146 wanted_spec.userdata = opaque;
2147 while (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2148 fprintf(stderr, "SDL_OpenAudio (%d channels): %s\n", wanted_spec.channels, SDL_GetError());
2149 wanted_spec.channels = next_nb_channels[FFMIN(7, wanted_spec.channels)];
2150 if (!wanted_spec.channels) {
2151 fprintf(stderr, "No more channel combinations to try, audio open failed\n");
2154 wanted_channel_layout = av_get_default_channel_layout(wanted_spec.channels);
2156 if (spec.format != AUDIO_S16SYS) {
2157 fprintf(stderr, "SDL advised audio format %d is not supported!\n", spec.format);
2160 if (spec.channels != wanted_spec.channels) {
2161 wanted_channel_layout = av_get_default_channel_layout(spec.channels);
2162 if (!wanted_channel_layout) {
2163 fprintf(stderr, "SDL advised channel count %d is not supported!\n", spec.channels);
2168 audio_hw_params->fmt = AV_SAMPLE_FMT_S16;
2169 audio_hw_params->freq = spec.freq;
2170 audio_hw_params->channel_layout = wanted_channel_layout;
2171 audio_hw_params->channels = spec.channels;
2175 /* open a given stream. Return 0 if OK */
2176 static int stream_component_open(VideoState *is, int stream_index)
2178 AVFormatContext *ic = is->ic;
2179 AVCodecContext *avctx;
2182 AVDictionaryEntry *t = NULL;
2184 if (stream_index < 0 || stream_index >= ic->nb_streams)
2186 avctx = ic->streams[stream_index]->codec;
2188 codec = avcodec_find_decoder(avctx->codec_id);
2189 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec);
2191 switch(avctx->codec_type){
2192 case AVMEDIA_TYPE_AUDIO : is->last_audio_stream = stream_index; if(audio_codec_name ) codec= avcodec_find_decoder_by_name( audio_codec_name); break;
2193 case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; if(subtitle_codec_name) codec= avcodec_find_decoder_by_name(subtitle_codec_name); break;
2194 case AVMEDIA_TYPE_VIDEO : is->last_video_stream = stream_index; if(video_codec_name ) codec= avcodec_find_decoder_by_name( video_codec_name); break;
2199 avctx->workaround_bugs = workaround_bugs;
2200 avctx->lowres = lowres;
2201 if(avctx->lowres > codec->max_lowres){
2202 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
2204 avctx->lowres= codec->max_lowres;
2206 avctx->idct_algo = idct;
2207 avctx->skip_frame = skip_frame;
2208 avctx->skip_idct = skip_idct;
2209 avctx->skip_loop_filter = skip_loop_filter;
2210 avctx->error_concealment = error_concealment;
2212 if(avctx->lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2213 if (fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2214 if(codec->capabilities & CODEC_CAP_DR1)
2215 avctx->flags |= CODEC_FLAG_EMU_EDGE;
2217 if (!av_dict_get(opts, "threads", NULL, 0))
2218 av_dict_set(&opts, "threads", "auto", 0);
2220 avcodec_open2(avctx, codec, &opts) < 0)
2222 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2223 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2224 return AVERROR_OPTION_NOT_FOUND;
2227 /* prepare audio output */
2228 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2229 int audio_hw_buf_size = audio_open(is, avctx->channel_layout, avctx->channels, avctx->sample_rate, &is->audio_src);
2230 if (audio_hw_buf_size < 0)
2232 is->audio_hw_buf_size = audio_hw_buf_size;
2233 is->audio_tgt = is->audio_src;
2236 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2237 switch (avctx->codec_type) {
2238 case AVMEDIA_TYPE_AUDIO:
2239 is->audio_stream = stream_index;
2240 is->audio_st = ic->streams[stream_index];
2241 is->audio_buf_size = 0;
2242 is->audio_buf_index = 0;
2244 /* init averaging filter */
2245 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2246 is->audio_diff_avg_count = 0;
2247 /* since we do not have a precise anough audio fifo fullness,
2248 we correct audio sync only if larger than this threshold */
2249 is->audio_diff_threshold = 2.0 * is->audio_hw_buf_size / av_samples_get_buffer_size(NULL, is->audio_tgt.channels, is->audio_tgt.freq, is->audio_tgt.fmt, 1);
2251 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2252 memset(&is->audio_pkt_temp, 0, sizeof(is->audio_pkt_temp));
2253 packet_queue_start(&is->audioq);
2256 case AVMEDIA_TYPE_VIDEO:
2257 is->video_stream = stream_index;
2258 is->video_st = ic->streams[stream_index];
2260 packet_queue_start(&is->videoq);
2261 is->video_tid = SDL_CreateThread(video_thread, is);
2263 case AVMEDIA_TYPE_SUBTITLE:
2264 is->subtitle_stream = stream_index;
2265 is->subtitle_st = ic->streams[stream_index];
2266 packet_queue_start(&is->subtitleq);
2268 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2276 static void stream_component_close(VideoState *is, int stream_index)
2278 AVFormatContext *ic = is->ic;
2279 AVCodecContext *avctx;
2281 if (stream_index < 0 || stream_index >= ic->nb_streams)
2283 avctx = ic->streams[stream_index]->codec;
2285 switch (avctx->codec_type) {
2286 case AVMEDIA_TYPE_AUDIO:
2287 packet_queue_abort(&is->audioq);
2291 packet_queue_flush(&is->audioq);
2292 av_free_packet(&is->audio_pkt);
2293 swr_free(&is->swr_ctx);
2294 av_freep(&is->audio_buf1);
2295 is->audio_buf = NULL;
2296 avcodec_free_frame(&is->frame);
2299 av_rdft_end(is->rdft);
2300 av_freep(&is->rdft_data);
2305 case AVMEDIA_TYPE_VIDEO:
2306 packet_queue_abort(&is->videoq);
2308 /* note: we also signal this mutex to make sure we deblock the
2309 video thread in all cases */
2310 SDL_LockMutex(is->pictq_mutex);
2311 SDL_CondSignal(is->pictq_cond);
2312 SDL_UnlockMutex(is->pictq_mutex);
2314 SDL_WaitThread(is->video_tid, NULL);
2316 packet_queue_flush(&is->videoq);
2318 case AVMEDIA_TYPE_SUBTITLE:
2319 packet_queue_abort(&is->subtitleq);
2321 /* note: we also signal this mutex to make sure we deblock the
2322 video thread in all cases */
2323 SDL_LockMutex(is->subpq_mutex);
2324 is->subtitle_stream_changed = 1;
2326 SDL_CondSignal(is->subpq_cond);
2327 SDL_UnlockMutex(is->subpq_mutex);
2329 SDL_WaitThread(is->subtitle_tid, NULL);
2331 packet_queue_flush(&is->subtitleq);
2337 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2338 avcodec_close(avctx);
2340 free_buffer_pool(&is->buffer_pool);
2342 switch (avctx->codec_type) {
2343 case AVMEDIA_TYPE_AUDIO:
2344 is->audio_st = NULL;
2345 is->audio_stream = -1;
2347 case AVMEDIA_TYPE_VIDEO:
2348 is->video_st = NULL;
2349 is->video_stream = -1;
2351 case AVMEDIA_TYPE_SUBTITLE:
2352 is->subtitle_st = NULL;
2353 is->subtitle_stream = -1;
2360 static int decode_interrupt_cb(void *ctx)
2362 VideoState *is = ctx;
2363 return is->abort_request;
2366 static int is_realtime(AVFormatContext *s)
2368 if( !strcmp(s->iformat->name, "rtp")
2369 || !strcmp(s->iformat->name, "rtsp")
2370 || !strcmp(s->iformat->name, "sdp")
2374 if(s->pb && ( !strncmp(s->filename, "rtp:", 4)
2375 || !strncmp(s->filename, "udp:", 4)
2382 /* this thread gets the stream from the disk or the network */
2383 static int read_thread(void *arg)
2385 VideoState *is = arg;
2386 AVFormatContext *ic = NULL;
2388 int st_index[AVMEDIA_TYPE_NB];
2389 AVPacket pkt1, *pkt = &pkt1;
2391 int pkt_in_play_range = 0;
2392 AVDictionaryEntry *t;
2393 AVDictionary **opts;
2394 int orig_nb_streams;
2395 SDL_mutex *wait_mutex = SDL_CreateMutex();
2397 memset(st_index, -1, sizeof(st_index));
2398 is->last_video_stream = is->video_stream = -1;
2399 is->last_audio_stream = is->audio_stream = -1;
2400 is->last_subtitle_stream = is->subtitle_stream = -1;
2402 ic = avformat_alloc_context();
2403 ic->interrupt_callback.callback = decode_interrupt_cb;
2404 ic->interrupt_callback.opaque = is;
2405 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2407 print_error(is->filename, err);
2411 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2412 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2413 ret = AVERROR_OPTION_NOT_FOUND;
2419 ic->flags |= AVFMT_FLAG_GENPTS;
2421 opts = setup_find_stream_info_opts(ic, codec_opts);
2422 orig_nb_streams = ic->nb_streams;
2424 err = avformat_find_stream_info(ic, opts);
2426 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2430 for (i = 0; i < orig_nb_streams; i++)
2431 av_dict_free(&opts[i]);
2435 ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
2437 if (seek_by_bytes < 0)
2438 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2440 /* if seeking requested, we execute it */
2441 if (start_time != AV_NOPTS_VALUE) {
2444 timestamp = start_time;
2445 /* add the stream start time */
2446 if (ic->start_time != AV_NOPTS_VALUE)
2447 timestamp += ic->start_time;
2448 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2450 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2451 is->filename, (double)timestamp / AV_TIME_BASE);
2455 for (i = 0; i < ic->nb_streams; i++)
2456 ic->streams[i]->discard = AVDISCARD_ALL;
2458 st_index[AVMEDIA_TYPE_VIDEO] =
2459 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2460 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2462 st_index[AVMEDIA_TYPE_AUDIO] =
2463 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2464 wanted_stream[AVMEDIA_TYPE_AUDIO],
2465 st_index[AVMEDIA_TYPE_VIDEO],
2468 st_index[AVMEDIA_TYPE_SUBTITLE] =
2469 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2470 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2471 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2472 st_index[AVMEDIA_TYPE_AUDIO] :
2473 st_index[AVMEDIA_TYPE_VIDEO]),
2476 av_dump_format(ic, 0, is->filename, 0);
2479 is->show_mode = show_mode;
2481 /* open the streams */
2482 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2483 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2487 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2488 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2490 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2491 if (is->show_mode == SHOW_MODE_NONE)
2492 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2494 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2495 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2498 if (is->video_stream < 0 && is->audio_stream < 0) {
2499 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2504 if (infinite_buffer < 0 && is_realtime(ic))
2505 infinite_buffer = 1;
2508 if (is->abort_request)
2510 if (is->paused != is->last_paused) {
2511 is->last_paused = is->paused;
2513 is->read_pause_return = av_read_pause(ic);
2517 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
2519 (!strcmp(ic->iformat->name, "rtsp") ||
2520 (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) {
2521 /* wait 10 ms to avoid trying to get another packet */
2528 int64_t seek_target = is->seek_pos;
2529 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2530 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2531 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2532 // of the seek_pos/seek_rel variables
2534 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2536 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2538 if (is->audio_stream >= 0) {
2539 packet_queue_flush(&is->audioq);
2540 packet_queue_put(&is->audioq, &flush_pkt);
2542 if (is->subtitle_stream >= 0) {
2543 packet_queue_flush(&is->subtitleq);
2544 packet_queue_put(&is->subtitleq, &flush_pkt);
2546 if (is->video_stream >= 0) {
2547 packet_queue_flush(&is->videoq);
2548 packet_queue_put(&is->videoq, &flush_pkt);
2554 if (is->que_attachments_req) {
2555 avformat_queue_attached_pictures(ic);
2556 is->que_attachments_req = 0;
2559 /* if the queue are full, no need to read more */
2560 if (infinite_buffer<1 &&
2561 (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2562 || ( (is->audioq .nb_packets > MIN_FRAMES || is->audio_stream < 0 || is->audioq.abort_request)
2563 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0 || is->videoq.abort_request)
2564 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0 || is->subtitleq.abort_request)))) {
2566 SDL_LockMutex(wait_mutex);
2567 SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
2568 SDL_UnlockMutex(wait_mutex);
2572 if (is->video_stream >= 0) {
2573 av_init_packet(pkt);
2576 pkt->stream_index = is->video_stream;
2577 packet_queue_put(&is->videoq, pkt);
2579 if (is->audio_stream >= 0 &&
2580 is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
2581 av_init_packet(pkt);
2584 pkt->stream_index = is->audio_stream;
2585 packet_queue_put(&is->audioq, pkt);
2588 if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) {
2589 if (loop != 1 && (!loop || --loop)) {
2590 stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2591 } else if (autoexit) {
2599 ret = av_read_frame(ic, pkt);
2601 if (ret == AVERROR_EOF || url_feof(ic->pb))
2603 if (ic->pb && ic->pb->error)
2605 SDL_LockMutex(wait_mutex);
2606 SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
2607 SDL_UnlockMutex(wait_mutex);
2610 /* check if packet is in play range specified by user, then queue, otherwise discard */
2611 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2612 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2613 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2614 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2615 <= ((double)duration / 1000000);
2616 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2617 packet_queue_put(&is->audioq, pkt);
2618 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2619 packet_queue_put(&is->videoq, pkt);
2620 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2621 packet_queue_put(&is->subtitleq, pkt);
2623 av_free_packet(pkt);
2626 /* wait until the end */
2627 while (!is->abort_request) {
2633 /* close each stream */
2634 if (is->audio_stream >= 0)
2635 stream_component_close(is, is->audio_stream);
2636 if (is->video_stream >= 0)
2637 stream_component_close(is, is->video_stream);
2638 if (is->subtitle_stream >= 0)
2639 stream_component_close(is, is->subtitle_stream);
2641 avformat_close_input(&is->ic);
2647 event.type = FF_QUIT_EVENT;
2648 event.user.data1 = is;
2649 SDL_PushEvent(&event);
2651 SDL_DestroyMutex(wait_mutex);
2655 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2659 is = av_mallocz(sizeof(VideoState));
2662 av_strlcpy(is->filename, filename, sizeof(is->filename));
2663 is->iformat = iformat;
2667 /* start video display */
2668 is->pictq_mutex = SDL_CreateMutex();
2669 is->pictq_cond = SDL_CreateCond();
2671 is->subpq_mutex = SDL_CreateMutex();
2672 is->subpq_cond = SDL_CreateCond();
2674 packet_queue_init(&is->videoq);
2675 packet_queue_init(&is->audioq);
2676 packet_queue_init(&is->subtitleq);
2678 is->continue_read_thread = SDL_CreateCond();
2680 is->av_sync_type = av_sync_type;
2681 is->read_tid = SDL_CreateThread(read_thread, is);
2682 if (!is->read_tid) {
2689 static void stream_cycle_channel(VideoState *is, int codec_type)
2691 AVFormatContext *ic = is->ic;
2692 int start_index, stream_index;
2696 if (codec_type == AVMEDIA_TYPE_VIDEO) {
2697 start_index = is->last_video_stream;
2698 old_index = is->video_stream;
2699 } else if (codec_type == AVMEDIA_TYPE_AUDIO) {
2700 start_index = is->last_audio_stream;
2701 old_index = is->audio_stream;
2703 start_index = is->last_subtitle_stream;
2704 old_index = is->subtitle_stream;
2706 stream_index = start_index;
2708 if (++stream_index >= is->ic->nb_streams)
2710 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2713 is->last_subtitle_stream = -1;
2716 if (start_index == -1)
2720 if (stream_index == start_index)
2722 st = ic->streams[stream_index];
2723 if (st->codec->codec_type == codec_type) {
2724 /* check that parameters are OK */
2725 switch (codec_type) {
2726 case AVMEDIA_TYPE_AUDIO:
2727 if (st->codec->sample_rate != 0 &&
2728 st->codec->channels != 0)
2731 case AVMEDIA_TYPE_VIDEO:
2732 case AVMEDIA_TYPE_SUBTITLE:
2740 stream_component_close(is, old_index);
2741 stream_component_open(is, stream_index);
2742 if (codec_type == AVMEDIA_TYPE_VIDEO)
2743 is->que_attachments_req = 1;
2747 static void toggle_full_screen(VideoState *is)
2749 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2750 /* OS X needs to reallocate the SDL overlays */
2752 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++)
2753 is->pictq[i].reallocate = 1;
2755 is_full_screen = !is_full_screen;
2759 static void toggle_pause(VideoState *is)
2761 stream_toggle_pause(is);
2765 static void step_to_next_frame(VideoState *is)
2767 /* if the stream is paused unpause it, then step */
2769 stream_toggle_pause(is);
2773 static void toggle_audio_display(VideoState *is)
2775 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2776 is->show_mode = (is->show_mode + 1) % SHOW_MODE_NB;
2777 fill_rectangle(screen,
2778 is->xleft, is->ytop, is->width, is->height,
2780 SDL_UpdateRect(screen, is->xleft, is->ytop, is->width, is->height);
2783 /* handle an event sent by the GUI */
2784 static void event_loop(VideoState *cur_stream)
2787 double incr, pos, frac;
2791 SDL_WaitEvent(&event);
2792 switch (event.type) {
2794 if (exit_on_keydown) {
2795 do_exit(cur_stream);
2798 switch (event.key.keysym.sym) {
2801 do_exit(cur_stream);
2804 toggle_full_screen(cur_stream);
2805 cur_stream->force_refresh = 1;
2809 toggle_pause(cur_stream);
2811 case SDLK_s: // S: Step to next frame
2812 step_to_next_frame(cur_stream);
2815 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2818 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2821 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2824 toggle_audio_display(cur_stream);
2825 cur_stream->force_refresh = 1;
2845 if (seek_by_bytes) {
2846 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) {
2847 pos = cur_stream->video_current_pos;
2848 } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) {
2849 pos = cur_stream->audio_pkt.pos;
2851 pos = avio_tell(cur_stream->ic->pb);
2852 if (cur_stream->ic->bit_rate)
2853 incr *= cur_stream->ic->bit_rate / 8.0;
2857 stream_seek(cur_stream, pos, incr, 1);
2859 pos = get_master_clock(cur_stream);
2861 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2868 case SDL_VIDEOEXPOSE:
2869 cur_stream->force_refresh = 1;
2871 case SDL_MOUSEBUTTONDOWN:
2872 if (exit_on_mousedown) {
2873 do_exit(cur_stream);
2876 case SDL_MOUSEMOTION:
2877 if (event.type == SDL_MOUSEBUTTONDOWN) {
2880 if (event.motion.state != SDL_PRESSED)
2884 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
2885 uint64_t size = avio_size(cur_stream->ic->pb);
2886 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2890 int tns, thh, tmm, tss;
2891 tns = cur_stream->ic->duration / 1000000LL;
2893 tmm = (tns % 3600) / 60;
2895 frac = x / cur_stream->width;
2898 mm = (ns % 3600) / 60;
2900 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2901 hh, mm, ss, thh, tmm, tss);
2902 ts = frac * cur_stream->ic->duration;
2903 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2904 ts += cur_stream->ic->start_time;
2905 stream_seek(cur_stream, ts, 0, 0);
2908 case SDL_VIDEORESIZE:
2909 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2910 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2911 screen_width = cur_stream->width = event.resize.w;
2912 screen_height = cur_stream->height = event.resize.h;
2913 cur_stream->force_refresh = 1;
2917 do_exit(cur_stream);
2919 case FF_ALLOC_EVENT:
2920 alloc_picture(event.user.data1);
2922 case FF_REFRESH_EVENT:
2923 video_refresh(event.user.data1);
2924 cur_stream->refresh = 0;
2932 static int opt_frame_size(void *optctx, const char *opt, const char *arg)
2934 av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
2935 return opt_default(NULL, "video_size", arg);
2938 static int opt_width(void *optctx, const char *opt, const char *arg)
2940 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2944 static int opt_height(void *optctx, const char *opt, const char *arg)
2946 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2950 static int opt_format(void *optctx, const char *opt, const char *arg)
2952 file_iformat = av_find_input_format(arg);
2953 if (!file_iformat) {
2954 fprintf(stderr, "Unknown input format: %s\n", arg);
2955 return AVERROR(EINVAL);
2960 static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg)
2962 av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
2963 return opt_default(NULL, "pixel_format", arg);
2966 static int opt_sync(void *optctx, const char *opt, const char *arg)
2968 if (!strcmp(arg, "audio"))
2969 av_sync_type = AV_SYNC_AUDIO_MASTER;
2970 else if (!strcmp(arg, "video"))
2971 av_sync_type = AV_SYNC_VIDEO_MASTER;
2972 else if (!strcmp(arg, "ext"))
2973 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2975 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2981 static int opt_seek(void *optctx, const char *opt, const char *arg)
2983 start_time = parse_time_or_die(opt, arg, 1);
2987 static int opt_duration(void *optctx, const char *opt, const char *arg)
2989 duration = parse_time_or_die(opt, arg, 1);
2993 static int opt_show_mode(void *optctx, const char *opt, const char *arg)
2995 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
2996 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
2997 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
2998 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
3002 static void opt_input_file(void *optctx, const char *filename)
3004 if (input_filename) {
3005 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3006 filename, input_filename);
3009 if (!strcmp(filename, "-"))
3011 input_filename = filename;
3014 static int opt_codec(void *o, const char *opt, const char *arg)
3016 switch(opt[strlen(opt)-1]){
3017 case 'a' : audio_codec_name = arg; break;
3018 case 's' : subtitle_codec_name = arg; break;
3019 case 'v' : video_codec_name = arg; break;
3026 static const OptionDef options[] = {
3027 #include "cmdutils_common_opts.h"
3028 { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" },
3029 { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" },
3030 { "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
3031 { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" },
3032 { "an", OPT_BOOL, { &audio_disable }, "disable audio" },
3033 { "vn", OPT_BOOL, { &video_disable }, "disable video" },
3034 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
3035 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
3036 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
3037 { "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" },
3038 { "t", HAS_ARG, { .func_arg = opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
3039 { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
3040 { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" },
3041 { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" },
3042 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" },
3043 { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" },
3044 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { &workaround_bugs }, "workaround bugs", "" },
3045 { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" },
3046 { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" },
3047 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3048 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { &lowres }, "", "" },
3049 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_loop_filter }, "", "" },
3050 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_frame }, "", "" },
3051 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_idct }, "", "" },
3052 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { &idct }, "set idct algo", "algo" },
3053 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { &error_concealment }, "set error concealment options", "bit_mask" },
3054 { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
3055 { "autoexit", OPT_BOOL | OPT_EXPERT, { &autoexit }, "exit at the end", "" },
3056 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" },
3057 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" },
3058 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" },
3059 { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" },
3060 { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" },
3061 { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" },
3063 { "vf", OPT_STRING | HAS_ARG, { &vfilters }, "video filters", "filter list" },
3065 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" },
3066 { "showmode", HAS_ARG, { .func_arg = opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
3067 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { .func_arg = opt_default }, "generic catch all option", "" },
3068 { "i", OPT_BOOL, { &dummy}, "read specified file", "input_file"},
3069 { "codec", HAS_ARG, { .func_arg = opt_codec}, "force decoder", "decoder" },
3073 static void show_usage(void)
3075 av_log(NULL, AV_LOG_INFO, "Simple media player\n");
3076 av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name);
3077 av_log(NULL, AV_LOG_INFO, "\n");
3080 void show_help_default(const char *opt, const char *arg)
3082 av_log_set_callback(log_callback_help);
3084 show_help_options(options, "Main options:", 0, OPT_EXPERT, 0);
3085 show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0);
3087 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3088 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3089 #if !CONFIG_AVFILTER
3090 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3092 show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM);
3094 printf("\nWhile playing:\n"
3096 "f toggle full screen\n"
3098 "a cycle audio channel\n"
3099 "v cycle video channel\n"
3100 "t cycle subtitle channel\n"
3101 "w show audio waves\n"
3102 "s activate frame-step mode\n"
3103 "left/right seek backward/forward 10 seconds\n"
3104 "down/up seek backward/forward 1 minute\n"
3105 "page down/page up seek backward/forward 10 minutes\n"
3106 "mouse click seek to percentage in file corresponding to fraction of width\n"
3110 static int lockmgr(void **mtx, enum AVLockOp op)
3113 case AV_LOCK_CREATE:
3114 *mtx = SDL_CreateMutex();
3118 case AV_LOCK_OBTAIN:
3119 return !!SDL_LockMutex(*mtx);
3120 case AV_LOCK_RELEASE:
3121 return !!SDL_UnlockMutex(*mtx);
3122 case AV_LOCK_DESTROY:
3123 SDL_DestroyMutex(*mtx);
3129 /* Called from the main */
3130 int main(int argc, char **argv)
3134 char dummy_videodriver[] = "SDL_VIDEODRIVER=dummy";
3136 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3137 parse_loglevel(argc, argv, options);
3139 /* register all codecs, demux and protocols */
3140 avcodec_register_all();
3142 avdevice_register_all();
3145 avfilter_register_all();
3148 avformat_network_init();
3152 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
3153 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
3155 show_banner(argc, argv, options);
3157 parse_options(NULL, argc, argv, options, opt_input_file);
3159 if (!input_filename) {
3161 fprintf(stderr, "An input file must be specified\n");
3162 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3166 if (display_disable) {
3169 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3171 flags &= ~SDL_INIT_AUDIO;
3172 if (display_disable)
3173 SDL_putenv(dummy_videodriver); /* For the event queue, we always need a video driver. */
3174 #if !defined(__MINGW32__) && !defined(__APPLE__)
3175 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3177 if (SDL_Init (flags)) {
3178 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3179 fprintf(stderr, "(Did you set the DISPLAY variable?)\n");
3183 if (!display_disable) {
3184 #if HAVE_SDL_VIDEO_SIZE
3185 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3186 fs_screen_width = vi->current_w;
3187 fs_screen_height = vi->current_h;
3191 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3192 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3193 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3195 if (av_lockmgr_register(lockmgr)) {
3196 fprintf(stderr, "Could not initialize lock manager!\n");
3200 av_init_packet(&flush_pkt);
3201 flush_pkt.data = (char *)(intptr_t)"FLUSH";
3203 is = stream_open(input_filename, file_iformat);
3205 fprintf(stderr, "Failed to initialize VideoState!\n");