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 MyAVPacketList {
92 struct MyAVPacketList *next;
96 typedef struct PacketQueue {
97 MyAVPacketList *first_pkt, *last_pkt;
106 #define VIDEO_PICTURE_QUEUE_SIZE 4
107 #define SUBPICTURE_QUEUE_SIZE 4
109 typedef struct VideoPicture {
110 double pts; // presentation timestamp for this picture
111 int64_t pos; // byte position in file
114 int width, height; /* source height & width */
115 AVRational sample_aspect_ratio;
121 AVFilterBufferRef *picref;
125 typedef struct SubPicture {
126 double pts; /* presentation time stamp for this picture */
130 typedef struct AudioParams {
134 enum AVSampleFormat fmt;
138 AV_SYNC_AUDIO_MASTER, /* default choice */
139 AV_SYNC_VIDEO_MASTER,
140 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
143 typedef struct VideoState {
144 SDL_Thread *read_tid;
145 SDL_Thread *video_tid;
146 SDL_Thread *refresh_tid;
147 AVInputFormat *iformat;
153 int que_attachments_req;
158 int read_pause_return;
164 double external_clock; ///< external clock base
165 double external_clock_drift; ///< external clock base - time (av_gettime) at which we updated external_clock
166 int64_t external_clock_time; ///< last reference time
169 double audio_diff_cum; /* used for AV difference average computation */
170 double audio_diff_avg_coef;
171 double audio_diff_threshold;
172 int audio_diff_avg_count;
175 int audio_hw_buf_size;
176 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[AVCODEC_MAX_AUDIO_FRAME_SIZE * 4];
177 uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
180 unsigned int audio_buf_size; /* in bytes */
181 int audio_buf_index; /* in bytes */
182 int audio_write_buf_size;
183 AVPacket audio_pkt_temp;
185 int audio_pkt_temp_serial;
186 struct AudioParams audio_src;
187 struct AudioParams audio_tgt;
188 struct SwrContext *swr_ctx;
189 double audio_current_pts;
190 double audio_current_pts_drift;
191 int frame_drops_early;
192 int frame_drops_late;
196 SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
198 int16_t sample_array[SAMPLE_ARRAY_SIZE];
199 int sample_array_index;
203 FFTSample *rdft_data;
206 SDL_Thread *subtitle_tid;
208 int subtitle_stream_changed;
209 AVStream *subtitle_st;
210 PacketQueue subtitleq;
211 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
212 int subpq_size, subpq_rindex, subpq_windex;
213 SDL_mutex *subpq_mutex;
214 SDL_cond *subpq_cond;
217 double frame_last_pts;
218 double frame_last_duration;
219 double frame_last_dropped_pts;
220 double frame_last_returned_time;
221 double frame_last_filter_delay;
222 int64_t frame_last_dropped_pos;
223 double video_clock; // pts of last decoded frame / predicted pts of next decoded frame
227 double video_current_pts; // current displayed pts (different from video_clock if frame fifos are used)
228 double video_current_pts_drift; // video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
229 int64_t video_current_pos; // current displayed file pos
230 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
231 int pictq_size, pictq_rindex, pictq_windex;
232 SDL_mutex *pictq_mutex;
233 SDL_cond *pictq_cond;
235 struct SwsContext *img_convert_ctx;
239 int width, height, xleft, ytop;
243 AVFilterContext *in_video_filter; // the first filter in the video chain
244 AVFilterContext *out_video_filter; // the last filter in the video chain
246 FrameBuffer *buffer_pool;
250 int last_video_stream, last_audio_stream, last_subtitle_stream;
252 SDL_cond *continue_read_thread;
255 /* options specified by the user */
256 static AVInputFormat *file_iformat;
257 static const char *input_filename;
258 static const char *window_title;
259 static int fs_screen_width;
260 static int fs_screen_height;
261 static int screen_width = 0;
262 static int screen_height = 0;
263 static int audio_disable;
264 static int video_disable;
265 static int wanted_stream[AVMEDIA_TYPE_NB] = {
266 [AVMEDIA_TYPE_AUDIO] = -1,
267 [AVMEDIA_TYPE_VIDEO] = -1,
268 [AVMEDIA_TYPE_SUBTITLE] = -1,
270 static int seek_by_bytes = -1;
271 static int display_disable;
272 static int show_status = 1;
273 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
274 static int64_t start_time = AV_NOPTS_VALUE;
275 static int64_t duration = AV_NOPTS_VALUE;
276 static int workaround_bugs = 1;
278 static int genpts = 0;
279 static int lowres = 0;
280 static int idct = FF_IDCT_AUTO;
281 static enum AVDiscard skip_frame = AVDISCARD_DEFAULT;
282 static enum AVDiscard skip_idct = AVDISCARD_DEFAULT;
283 static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT;
284 static int error_concealment = 3;
285 static int decoder_reorder_pts = -1;
287 static int exit_on_keydown;
288 static int exit_on_mousedown;
290 static int framedrop = -1;
291 static int infinite_buffer = -1;
292 static enum ShowMode show_mode = SHOW_MODE_NONE;
293 static const char *audio_codec_name;
294 static const char *subtitle_codec_name;
295 static const char *video_codec_name;
296 static int rdftspeed = 20;
298 static char *vfilters = NULL;
301 /* current context */
302 static int is_full_screen;
303 static int64_t audio_callback_time;
305 static AVPacket flush_pkt;
307 #define FF_ALLOC_EVENT (SDL_USEREVENT)
308 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
309 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
311 static SDL_Surface *screen;
313 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
315 static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt)
317 MyAVPacketList *pkt1;
319 if (q->abort_request)
322 pkt1 = av_malloc(sizeof(MyAVPacketList));
327 if (pkt == &flush_pkt)
329 pkt1->serial = q->serial;
334 q->last_pkt->next = pkt1;
337 q->size += pkt1->pkt.size + sizeof(*pkt1);
338 /* XXX: should duplicate packet data in DV case */
339 SDL_CondSignal(q->cond);
343 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
347 /* duplicate the packet */
348 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
351 SDL_LockMutex(q->mutex);
352 ret = packet_queue_put_private(q, pkt);
353 SDL_UnlockMutex(q->mutex);
355 if (pkt != &flush_pkt && ret < 0)
361 /* packet queue handling */
362 static void packet_queue_init(PacketQueue *q)
364 memset(q, 0, sizeof(PacketQueue));
365 q->mutex = SDL_CreateMutex();
366 q->cond = SDL_CreateCond();
367 q->abort_request = 1;
370 static void packet_queue_flush(PacketQueue *q)
372 MyAVPacketList *pkt, *pkt1;
374 SDL_LockMutex(q->mutex);
375 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
377 av_free_packet(&pkt->pkt);
384 SDL_UnlockMutex(q->mutex);
387 static void packet_queue_destroy(PacketQueue *q)
389 packet_queue_flush(q);
390 SDL_DestroyMutex(q->mutex);
391 SDL_DestroyCond(q->cond);
394 static void packet_queue_abort(PacketQueue *q)
396 SDL_LockMutex(q->mutex);
398 q->abort_request = 1;
400 SDL_CondSignal(q->cond);
402 SDL_UnlockMutex(q->mutex);
405 static void packet_queue_start(PacketQueue *q)
407 SDL_LockMutex(q->mutex);
408 q->abort_request = 0;
409 packet_queue_put_private(q, &flush_pkt);
410 SDL_UnlockMutex(q->mutex);
413 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
414 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *serial)
416 MyAVPacketList *pkt1;
419 SDL_LockMutex(q->mutex);
422 if (q->abort_request) {
429 q->first_pkt = pkt1->next;
433 q->size -= pkt1->pkt.size + sizeof(*pkt1);
436 *serial = pkt1->serial;
444 SDL_CondWait(q->cond, q->mutex);
447 SDL_UnlockMutex(q->mutex);
451 static inline void fill_rectangle(SDL_Surface *screen,
452 int x, int y, int w, int h, int color)
459 SDL_FillRect(screen, &rect, color);
462 #define ALPHA_BLEND(a, oldp, newp, s)\
463 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
465 #define RGBA_IN(r, g, b, a, s)\
467 unsigned int v = ((const uint32_t *)(s))[0];\
468 a = (v >> 24) & 0xff;\
469 r = (v >> 16) & 0xff;\
470 g = (v >> 8) & 0xff;\
474 #define YUVA_IN(y, u, v, a, s, pal)\
476 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
477 a = (val >> 24) & 0xff;\
478 y = (val >> 16) & 0xff;\
479 u = (val >> 8) & 0xff;\
483 #define YUVA_OUT(d, y, u, v, a)\
485 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
491 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
493 int wrap, wrap3, width2, skip2;
494 int y, u, v, a, u1, v1, a1, w, h;
495 uint8_t *lum, *cb, *cr;
498 int dstx, dsty, dstw, dsth;
500 dstw = av_clip(rect->w, 0, imgw);
501 dsth = av_clip(rect->h, 0, imgh);
502 dstx = av_clip(rect->x, 0, imgw - dstw);
503 dsty = av_clip(rect->y, 0, imgh - dsth);
504 lum = dst->data[0] + dsty * dst->linesize[0];
505 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
506 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
508 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
510 wrap = dst->linesize[0];
511 wrap3 = rect->pict.linesize[0];
512 p = rect->pict.data[0];
513 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
521 YUVA_IN(y, u, v, a, p, pal);
522 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
523 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
524 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
530 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
531 YUVA_IN(y, u, v, a, p, pal);
535 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
537 YUVA_IN(y, u, v, a, p + BPP, pal);
541 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
542 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
543 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
550 YUVA_IN(y, u, v, a, p, pal);
551 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
552 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
553 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
557 p += wrap3 - dstw * BPP;
558 lum += wrap - dstw - dstx;
559 cb += dst->linesize[1] - width2 - skip2;
560 cr += dst->linesize[2] - width2 - skip2;
562 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
568 YUVA_IN(y, u, v, a, p, pal);
572 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
575 YUVA_IN(y, u, v, a, p, pal);
579 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
580 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
581 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
587 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
588 YUVA_IN(y, u, v, a, p, pal);
592 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
594 YUVA_IN(y, u, v, a, p + BPP, pal);
598 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
602 YUVA_IN(y, u, v, a, p, pal);
606 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
608 YUVA_IN(y, u, v, a, p + BPP, pal);
612 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
614 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
615 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
619 p += -wrap3 + 2 * BPP;
623 YUVA_IN(y, u, v, a, p, pal);
627 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
630 YUVA_IN(y, u, v, a, p, pal);
634 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
635 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
636 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
642 p += wrap3 + (wrap3 - dstw * BPP);
643 lum += wrap + (wrap - dstw - dstx);
644 cb += dst->linesize[1] - width2 - skip2;
645 cr += dst->linesize[2] - width2 - skip2;
647 /* handle odd height */
654 YUVA_IN(y, u, v, a, p, pal);
655 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
656 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
657 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
663 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
664 YUVA_IN(y, u, v, a, p, pal);
668 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
670 YUVA_IN(y, u, v, a, p + BPP, pal);
674 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
675 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
676 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
683 YUVA_IN(y, u, v, a, p, pal);
684 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
685 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
686 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
691 static void free_subpicture(SubPicture *sp)
693 avsubtitle_free(&sp->sub);
696 static void calculate_display_rect(SDL_Rect *rect, int scr_xleft, int scr_ytop, int scr_width, int scr_height, VideoPicture *vp)
699 int width, height, x, y;
701 if (vp->sample_aspect_ratio.num == 0)
704 aspect_ratio = av_q2d(vp->sample_aspect_ratio);
706 if (aspect_ratio <= 0.0)
708 aspect_ratio *= (float)vp->width / (float)vp->height;
710 /* XXX: we suppose the screen has a 1.0 pixel ratio */
712 width = ((int)rint(height * aspect_ratio)) & ~1;
713 if (width > scr_width) {
715 height = ((int)rint(width / aspect_ratio)) & ~1;
717 x = (scr_width - width) / 2;
718 y = (scr_height - height) / 2;
719 rect->x = scr_xleft + x;
720 rect->y = scr_ytop + y;
721 rect->w = FFMAX(width, 1);
722 rect->h = FFMAX(height, 1);
725 static void video_image_display(VideoState *is)
733 vp = &is->pictq[is->pictq_rindex];
735 if (is->subtitle_st) {
736 if (is->subpq_size > 0) {
737 sp = &is->subpq[is->subpq_rindex];
739 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
740 SDL_LockYUVOverlay (vp->bmp);
742 pict.data[0] = vp->bmp->pixels[0];
743 pict.data[1] = vp->bmp->pixels[2];
744 pict.data[2] = vp->bmp->pixels[1];
746 pict.linesize[0] = vp->bmp->pitches[0];
747 pict.linesize[1] = vp->bmp->pitches[2];
748 pict.linesize[2] = vp->bmp->pitches[1];
750 for (i = 0; i < sp->sub.num_rects; i++)
751 blend_subrect(&pict, sp->sub.rects[i],
752 vp->bmp->w, vp->bmp->h);
754 SDL_UnlockYUVOverlay (vp->bmp);
759 calculate_display_rect(&rect, is->xleft, is->ytop, is->width, is->height, vp);
761 SDL_DisplayYUVOverlay(vp->bmp, &rect);
765 static inline int compute_mod(int a, int b)
767 return a < 0 ? a%b + b : a%b;
770 static void video_audio_display(VideoState *s)
772 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
773 int ch, channels, h, h2, bgcolor, fgcolor;
775 int rdft_bits, nb_freq;
777 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
779 nb_freq = 1 << (rdft_bits - 1);
781 /* compute display index : center on currently output samples */
782 channels = s->audio_tgt.channels;
783 nb_display_channels = channels;
785 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
787 delay = s->audio_write_buf_size;
790 /* to be more precise, we take into account the time spent since
791 the last buffer computation */
792 if (audio_callback_time) {
793 time_diff = av_gettime() - audio_callback_time;
794 delay -= (time_diff * s->audio_tgt.freq) / 1000000;
797 delay += 2 * data_used;
798 if (delay < data_used)
801 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
802 if (s->show_mode == SHOW_MODE_WAVES) {
804 for (i = 0; i < 1000; i += channels) {
805 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
806 int a = s->sample_array[idx];
807 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
808 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
809 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
811 if (h < score && (b ^ c) < 0) {
818 s->last_i_start = i_start;
820 i_start = s->last_i_start;
823 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
824 if (s->show_mode == SHOW_MODE_WAVES) {
825 fill_rectangle(screen,
826 s->xleft, s->ytop, s->width, s->height,
829 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
831 /* total height for one channel */
832 h = s->height / nb_display_channels;
833 /* graph height / 2 */
835 for (ch = 0; ch < nb_display_channels; ch++) {
837 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
838 for (x = 0; x < s->width; x++) {
839 y = (s->sample_array[i] * h2) >> 15;
846 fill_rectangle(screen,
847 s->xleft + x, ys, 1, y,
850 if (i >= SAMPLE_ARRAY_SIZE)
851 i -= SAMPLE_ARRAY_SIZE;
855 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
857 for (ch = 1; ch < nb_display_channels; ch++) {
858 y = s->ytop + ch * h;
859 fill_rectangle(screen,
860 s->xleft, y, s->width, 1,
863 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
865 nb_display_channels= FFMIN(nb_display_channels, 2);
866 if (rdft_bits != s->rdft_bits) {
867 av_rdft_end(s->rdft);
868 av_free(s->rdft_data);
869 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
870 s->rdft_bits = rdft_bits;
871 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
875 for (ch = 0; ch < nb_display_channels; ch++) {
876 data[ch] = s->rdft_data + 2 * nb_freq * ch;
878 for (x = 0; x < 2 * nb_freq; x++) {
879 double w = (x-nb_freq) * (1.0 / nb_freq);
880 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
882 if (i >= SAMPLE_ARRAY_SIZE)
883 i -= SAMPLE_ARRAY_SIZE;
885 av_rdft_calc(s->rdft, data[ch]);
887 // least efficient way to do this, we should of course directly access it but its more than fast enough
888 for (y = 0; y < s->height; y++) {
889 double w = 1 / sqrt(nb_freq);
890 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]));
891 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
892 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
895 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
897 fill_rectangle(screen,
898 s->xpos, s->height-y, 1, 1,
902 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
905 if (s->xpos >= s->width)
910 static void stream_close(VideoState *is)
914 /* XXX: use a special url_shutdown call to abort parse cleanly */
915 is->abort_request = 1;
916 SDL_WaitThread(is->read_tid, NULL);
917 SDL_WaitThread(is->refresh_tid, NULL);
918 packet_queue_destroy(&is->videoq);
919 packet_queue_destroy(&is->audioq);
920 packet_queue_destroy(&is->subtitleq);
922 /* free all pictures */
923 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
926 avfilter_unref_bufferp(&vp->picref);
929 SDL_FreeYUVOverlay(vp->bmp);
933 SDL_DestroyMutex(is->pictq_mutex);
934 SDL_DestroyCond(is->pictq_cond);
935 SDL_DestroyMutex(is->subpq_mutex);
936 SDL_DestroyCond(is->subpq_cond);
937 SDL_DestroyCond(is->continue_read_thread);
939 if (is->img_convert_ctx)
940 sws_freeContext(is->img_convert_ctx);
945 static void do_exit(VideoState *is)
950 av_lockmgr_register(NULL);
956 avformat_network_deinit();
960 av_log(NULL, AV_LOG_QUIET, "%s", "");
964 static void sigterm_handler(int sig)
969 static int video_open(VideoState *is, int force_set_video_mode)
971 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
973 VideoPicture *vp = &is->pictq[is->pictq_rindex];
976 if (is_full_screen) flags |= SDL_FULLSCREEN;
977 else flags |= SDL_RESIZABLE;
979 if (is_full_screen && fs_screen_width) {
981 h = fs_screen_height;
982 } else if (!is_full_screen && screen_width) {
985 } else if (vp->width) {
986 calculate_display_rect(&rect, 0, 0, INT_MAX, vp->height, vp);
993 if (screen && is->width == screen->w && screen->w == w
994 && is->height== screen->h && screen->h == h && !force_set_video_mode)
996 screen = SDL_SetVideoMode(w, h, 0, flags);
998 fprintf(stderr, "SDL: could not set video mode - exiting\n");
1002 window_title = input_filename;
1003 SDL_WM_SetCaption(window_title, window_title);
1005 is->width = screen->w;
1006 is->height = screen->h;
1011 /* display the current picture, if any */
1012 static void video_display(VideoState *is)
1016 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
1017 video_audio_display(is);
1018 else if (is->video_st)
1019 video_image_display(is);
1022 static int refresh_thread(void *opaque)
1024 VideoState *is= opaque;
1025 while (!is->abort_request) {
1027 event.type = FF_REFRESH_EVENT;
1028 event.user.data1 = opaque;
1029 if (!is->refresh && (!is->paused || is->force_refresh)) {
1031 SDL_PushEvent(&event);
1033 //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
1034 av_usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
1039 /* get the current audio clock value */
1040 static double get_audio_clock(VideoState *is)
1043 return is->audio_current_pts;
1045 return is->audio_current_pts_drift + av_gettime() / 1000000.0;
1049 /* get the current video clock value */
1050 static double get_video_clock(VideoState *is)
1053 return is->video_current_pts;
1055 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1059 /* get the current external clock value */
1060 static double get_external_clock(VideoState *is)
1063 return is->external_clock;
1065 return is->external_clock_drift + av_gettime() / 1000000.0;
1069 static int get_master_sync_type(VideoState *is) {
1070 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1072 return AV_SYNC_VIDEO_MASTER;
1074 return AV_SYNC_AUDIO_MASTER;
1075 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1077 return AV_SYNC_AUDIO_MASTER;
1079 return AV_SYNC_EXTERNAL_CLOCK;
1081 return AV_SYNC_EXTERNAL_CLOCK;
1085 /* get the current master clock value */
1086 static double get_master_clock(VideoState *is)
1090 switch (get_master_sync_type(is)) {
1091 case AV_SYNC_VIDEO_MASTER:
1092 val = get_video_clock(is);
1094 case AV_SYNC_AUDIO_MASTER:
1095 val = get_audio_clock(is);
1098 val = get_external_clock(is);
1104 static void update_external_clock_pts(VideoState *is, double pts)
1106 is->external_clock_time = av_gettime();
1107 is->external_clock = pts;
1108 is->external_clock_drift = pts - is->external_clock_time / 1000000.0;
1111 static void check_external_clock_sync(VideoState *is, double pts) {
1112 if (fabs(get_external_clock(is) - pts) > AV_NOSYNC_THRESHOLD) {
1113 update_external_clock_pts(is, pts);
1117 /* seek in the stream */
1118 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1120 if (!is->seek_req) {
1123 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1125 is->seek_flags |= AVSEEK_FLAG_BYTE;
1130 /* pause or resume the video */
1131 static void stream_toggle_pause(VideoState *is)
1134 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1135 if (is->read_pause_return != AVERROR(ENOSYS)) {
1136 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1138 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1140 update_external_clock_pts(is, get_external_clock(is));
1141 is->paused = !is->paused;
1144 static double compute_target_delay(double delay, VideoState *is)
1146 double sync_threshold, diff;
1148 /* update delay to follow master synchronisation source */
1149 if (get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER) {
1150 /* if video is slave, we try to correct big delays by
1151 duplicating or deleting a frame */
1152 diff = get_video_clock(is) - get_master_clock(is);
1154 /* skip or repeat frame. We take into account the
1155 delay to compute the threshold. I still don't know
1156 if it is the best guess */
1157 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1158 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1159 if (diff <= -sync_threshold)
1161 else if (diff >= sync_threshold)
1166 av_dlog(NULL, "video: delay=%0.3f A-V=%f\n",
1172 static void pictq_next_picture(VideoState *is) {
1173 /* update queue size and signal for next picture */
1174 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1175 is->pictq_rindex = 0;
1177 SDL_LockMutex(is->pictq_mutex);
1179 SDL_CondSignal(is->pictq_cond);
1180 SDL_UnlockMutex(is->pictq_mutex);
1183 static void pictq_prev_picture(VideoState *is) {
1184 VideoPicture *prevvp;
1185 /* update queue size and signal for the previous picture */
1186 prevvp = &is->pictq[(is->pictq_rindex + VIDEO_PICTURE_QUEUE_SIZE - 1) % VIDEO_PICTURE_QUEUE_SIZE];
1187 if (prevvp->allocated && !prevvp->skip) {
1188 SDL_LockMutex(is->pictq_mutex);
1189 if (is->pictq_size < VIDEO_PICTURE_QUEUE_SIZE - 1) {
1190 if (--is->pictq_rindex == -1)
1191 is->pictq_rindex = VIDEO_PICTURE_QUEUE_SIZE - 1;
1194 SDL_CondSignal(is->pictq_cond);
1195 SDL_UnlockMutex(is->pictq_mutex);
1199 static void update_video_pts(VideoState *is, double pts, int64_t pos, int serial) {
1200 double time = av_gettime() / 1000000.0;
1201 /* update current video pts */
1202 is->video_current_pts = pts;
1203 is->video_current_pts_drift = is->video_current_pts - time;
1204 is->video_current_pos = pos;
1205 is->frame_last_pts = pts;
1206 if (is->videoq.serial == serial)
1207 check_external_clock_sync(is, is->video_current_pts);
1210 /* called to display each frame */
1211 static void video_refresh(void *opaque)
1213 VideoState *is = opaque;
1217 SubPicture *sp, *sp2;
1220 if (is->force_refresh)
1221 pictq_prev_picture(is);
1223 if (is->pictq_size == 0) {
1224 SDL_LockMutex(is->pictq_mutex);
1225 if (is->frame_last_dropped_pts != AV_NOPTS_VALUE && is->frame_last_dropped_pts > is->frame_last_pts) {
1226 update_video_pts(is, is->frame_last_dropped_pts, is->frame_last_dropped_pos, 0);
1227 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1229 SDL_UnlockMutex(is->pictq_mutex);
1230 // nothing to do, no picture to display in the que
1232 double last_duration, duration, delay;
1233 /* dequeue the picture */
1234 vp = &is->pictq[is->pictq_rindex];
1237 pictq_next_picture(is);
1244 /* compute nominal last_duration */
1245 last_duration = vp->pts - is->frame_last_pts;
1246 if (last_duration > 0 && last_duration < 10.0) {
1247 /* if duration of the last frame was sane, update last_duration in video state */
1248 is->frame_last_duration = last_duration;
1250 delay = compute_target_delay(is->frame_last_duration, is);
1252 time= av_gettime()/1000000.0;
1253 if (time < is->frame_timer + delay)
1257 is->frame_timer += delay * FFMAX(1, floor((time-is->frame_timer) / delay));
1259 SDL_LockMutex(is->pictq_mutex);
1260 update_video_pts(is, vp->pts, vp->pos, vp->serial);
1261 SDL_UnlockMutex(is->pictq_mutex);
1263 if (is->pictq_size > 1) {
1264 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1265 duration = nextvp->pts - vp->pts;
1266 if((framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){
1267 is->frame_drops_late++;
1268 pictq_next_picture(is);
1273 if (is->subtitle_st) {
1274 if (is->subtitle_stream_changed) {
1275 SDL_LockMutex(is->subpq_mutex);
1277 while (is->subpq_size) {
1278 free_subpicture(&is->subpq[is->subpq_rindex]);
1280 /* update queue size and signal for next picture */
1281 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1282 is->subpq_rindex = 0;
1286 is->subtitle_stream_changed = 0;
1288 SDL_CondSignal(is->subpq_cond);
1289 SDL_UnlockMutex(is->subpq_mutex);
1291 if (is->subpq_size > 0) {
1292 sp = &is->subpq[is->subpq_rindex];
1294 if (is->subpq_size > 1)
1295 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1299 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1300 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1302 free_subpicture(sp);
1304 /* update queue size and signal for next picture */
1305 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1306 is->subpq_rindex = 0;
1308 SDL_LockMutex(is->subpq_mutex);
1310 SDL_CondSignal(is->subpq_cond);
1311 SDL_UnlockMutex(is->subpq_mutex);
1318 /* display picture */
1319 if (!display_disable)
1322 pictq_next_picture(is);
1324 } else if (is->audio_st) {
1325 /* draw the next audio frame */
1327 /* if only audio stream, then display the audio bars (better
1328 than nothing, just to test the implementation */
1330 /* display picture */
1331 if (!display_disable)
1334 is->force_refresh = 0;
1336 static int64_t last_time;
1338 int aqsize, vqsize, sqsize;
1341 cur_time = av_gettime();
1342 if (!last_time || (cur_time - last_time) >= 30000) {
1347 aqsize = is->audioq.size;
1349 vqsize = is->videoq.size;
1350 if (is->subtitle_st)
1351 sqsize = is->subtitleq.size;
1353 if (is->audio_st && is->video_st)
1354 av_diff = get_audio_clock(is) - get_video_clock(is);
1355 printf("%7.2f A-V:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1356 get_master_clock(is),
1358 is->frame_drops_early + is->frame_drops_late,
1362 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1363 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1365 last_time = cur_time;
1370 /* allocate a picture (needs to do that in main thread to avoid
1371 potential locking problems */
1372 static void alloc_picture(VideoState *is)
1376 vp = &is->pictq[is->pictq_windex];
1379 SDL_FreeYUVOverlay(vp->bmp);
1382 avfilter_unref_bufferp(&vp->picref);
1387 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1390 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1391 /* SDL allocates a buffer smaller than requested if the video
1392 * overlay hardware is unable to support the requested size. */
1393 fprintf(stderr, "Error: the video system does not support an image\n"
1394 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1395 "to reduce the image size.\n", vp->width, vp->height );
1399 SDL_LockMutex(is->pictq_mutex);
1401 SDL_CondSignal(is->pictq_cond);
1402 SDL_UnlockMutex(is->pictq_mutex);
1405 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos, int serial)
1408 double frame_delay, pts = pts1;
1410 /* compute the exact PTS for the picture if it is omitted in the stream
1411 * pts1 is the dts of the pkt / pts of the frame */
1413 /* update video clock with pts, if present */
1414 is->video_clock = pts;
1416 pts = is->video_clock;
1418 /* update video clock for next frame */
1419 frame_delay = av_q2d(is->video_st->codec->time_base);
1420 /* for MPEG2, the frame can be repeated, so we update the
1421 clock accordingly */
1422 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1423 is->video_clock += frame_delay;
1425 #if defined(DEBUG_SYNC) && 0
1426 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1427 av_get_picture_type_char(src_frame->pict_type), pts, pts1);
1430 /* wait until we have space to put a new picture */
1431 SDL_LockMutex(is->pictq_mutex);
1433 /* keep the last already displayed picture in the queue */
1434 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE - 2 &&
1435 !is->videoq.abort_request) {
1436 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1438 SDL_UnlockMutex(is->pictq_mutex);
1440 if (is->videoq.abort_request)
1443 vp = &is->pictq[is->pictq_windex];
1446 vp->sample_aspect_ratio = ((AVFilterBufferRef *)src_frame->opaque)->video->sample_aspect_ratio;
1448 vp->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, src_frame);
1451 /* alloc or resize hardware picture buffer */
1452 if (!vp->bmp || vp->reallocate || !vp->allocated ||
1453 vp->width != src_frame->width ||
1454 vp->height != src_frame->height) {
1459 vp->width = src_frame->width;
1460 vp->height = src_frame->height;
1462 /* the allocation must be done in the main thread to avoid
1463 locking problems. */
1464 event.type = FF_ALLOC_EVENT;
1465 event.user.data1 = is;
1466 SDL_PushEvent(&event);
1468 /* wait until the picture is allocated */
1469 SDL_LockMutex(is->pictq_mutex);
1470 while (!vp->allocated && !is->videoq.abort_request) {
1471 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1473 /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */
1474 if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) {
1475 while (!vp->allocated) {
1476 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1479 SDL_UnlockMutex(is->pictq_mutex);
1481 if (is->videoq.abort_request)
1485 /* if the frame is not skipped, then display it */
1487 AVPicture pict = { { 0 } };
1489 avfilter_unref_bufferp(&vp->picref);
1490 vp->picref = src_frame->opaque;
1493 /* get a pointer on the bitmap */
1494 SDL_LockYUVOverlay (vp->bmp);
1496 pict.data[0] = vp->bmp->pixels[0];
1497 pict.data[1] = vp->bmp->pixels[2];
1498 pict.data[2] = vp->bmp->pixels[1];
1500 pict.linesize[0] = vp->bmp->pitches[0];
1501 pict.linesize[1] = vp->bmp->pitches[2];
1502 pict.linesize[2] = vp->bmp->pitches[1];
1505 // FIXME use direct rendering
1506 av_picture_copy(&pict, (AVPicture *)src_frame,
1507 src_frame->format, vp->width, vp->height);
1509 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1510 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1511 vp->width, vp->height, src_frame->format, vp->width, vp->height,
1512 AV_PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1513 if (is->img_convert_ctx == NULL) {
1514 fprintf(stderr, "Cannot initialize the conversion context\n");
1517 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1518 0, vp->height, pict.data, pict.linesize);
1520 /* update the bitmap content */
1521 SDL_UnlockYUVOverlay(vp->bmp);
1526 vp->serial = serial;
1528 /* now we can update the picture count */
1529 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1530 is->pictq_windex = 0;
1531 SDL_LockMutex(is->pictq_mutex);
1533 SDL_UnlockMutex(is->pictq_mutex);
1538 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt, int *serial)
1542 if (packet_queue_get(&is->videoq, pkt, 1, serial) < 0)
1545 if (pkt->data == flush_pkt.data) {
1546 avcodec_flush_buffers(is->video_st->codec);
1548 SDL_LockMutex(is->pictq_mutex);
1549 // Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1550 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1551 is->pictq[i].skip = 1;
1553 while (is->pictq_size && !is->videoq.abort_request) {
1554 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1556 is->video_current_pos = -1;
1557 is->frame_last_pts = AV_NOPTS_VALUE;
1558 is->frame_last_duration = 0;
1559 is->frame_timer = (double)av_gettime() / 1000000.0;
1560 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1561 SDL_UnlockMutex(is->pictq_mutex);
1566 if(avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt) < 0)
1572 if (decoder_reorder_pts == -1) {
1573 *pts = av_frame_get_best_effort_timestamp(frame);
1574 } else if (decoder_reorder_pts) {
1575 *pts = frame->pkt_pts;
1577 *pts = frame->pkt_dts;
1580 if (*pts == AV_NOPTS_VALUE) {
1584 if (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) {
1585 SDL_LockMutex(is->pictq_mutex);
1586 if (is->frame_last_pts != AV_NOPTS_VALUE && *pts) {
1587 double clockdiff = get_video_clock(is) - get_master_clock(is);
1588 double dpts = av_q2d(is->video_st->time_base) * *pts;
1589 double ptsdiff = dpts - is->frame_last_pts;
1590 if (fabs(clockdiff) < AV_NOSYNC_THRESHOLD &&
1591 ptsdiff > 0 && ptsdiff < AV_NOSYNC_THRESHOLD &&
1592 clockdiff + ptsdiff - is->frame_last_filter_delay < 0) {
1593 is->frame_last_dropped_pos = pkt->pos;
1594 is->frame_last_dropped_pts = dpts;
1595 is->frame_drops_early++;
1599 SDL_UnlockMutex(is->pictq_mutex);
1608 static int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph,
1609 AVFilterContext *source_ctx, AVFilterContext *sink_ctx)
1612 AVFilterInOut *outputs = NULL, *inputs = NULL;
1615 outputs = avfilter_inout_alloc();
1616 inputs = avfilter_inout_alloc();
1617 if (!outputs || !inputs) {
1618 ret = AVERROR(ENOMEM);
1622 outputs->name = av_strdup("in");
1623 outputs->filter_ctx = source_ctx;
1624 outputs->pad_idx = 0;
1625 outputs->next = NULL;
1627 inputs->name = av_strdup("out");
1628 inputs->filter_ctx = sink_ctx;
1629 inputs->pad_idx = 0;
1630 inputs->next = NULL;
1632 if ((ret = avfilter_graph_parse(graph, filtergraph, &inputs, &outputs, NULL)) < 0)
1635 if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0)
1639 return avfilter_graph_config(graph, NULL);
1641 avfilter_inout_free(&outputs);
1642 avfilter_inout_free(&inputs);
1646 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1648 static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE };
1649 char sws_flags_str[128];
1650 char buffersrc_args[256];
1652 AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
1653 AVFilterContext *filt_src = NULL, *filt_out = NULL, *filt_format, *filt_crop;
1654 AVCodecContext *codec = is->video_st->codec;
1656 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1657 graph->scale_sws_opts = av_strdup(sws_flags_str);
1659 snprintf(buffersrc_args, sizeof(buffersrc_args),
1660 "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
1661 codec->width, codec->height, codec->pix_fmt,
1662 is->video_st->time_base.num, is->video_st->time_base.den,
1663 codec->sample_aspect_ratio.num, FFMAX(codec->sample_aspect_ratio.den, 1));
1665 if ((ret = avfilter_graph_create_filter(&filt_src,
1666 avfilter_get_by_name("buffer"),
1667 "ffplay_buffer", buffersrc_args, NULL,
1671 buffersink_params->pixel_fmts = pix_fmts;
1672 ret = avfilter_graph_create_filter(&filt_out,
1673 avfilter_get_by_name("ffbuffersink"),
1674 "ffplay_buffersink", NULL, buffersink_params, graph);
1675 av_freep(&buffersink_params);
1679 /* SDL YUV code is not handling odd width/height for some driver
1680 * combinations, therefore we crop the picture to an even width/height. */
1681 if ((ret = avfilter_graph_create_filter(&filt_crop,
1682 avfilter_get_by_name("crop"),
1683 "ffplay_crop", "floor(in_w/2)*2:floor(in_h/2)*2", NULL, graph)) < 0)
1685 if ((ret = avfilter_graph_create_filter(&filt_format,
1686 avfilter_get_by_name("format"),
1687 "format", "yuv420p", NULL, graph)) < 0)
1689 if ((ret = avfilter_link(filt_crop, 0, filt_format, 0)) < 0)
1691 if ((ret = avfilter_link(filt_format, 0, filt_out, 0)) < 0)
1694 if ((ret = configure_filtergraph(graph, vfilters, filt_src, filt_crop)) < 0)
1697 is->in_video_filter = filt_src;
1698 is->out_video_filter = filt_out;
1703 #endif /* CONFIG_AVFILTER */
1705 static int video_thread(void *arg)
1707 AVPacket pkt = { 0 };
1708 VideoState *is = arg;
1709 AVFrame *frame = avcodec_alloc_frame();
1710 int64_t pts_int = AV_NOPTS_VALUE, pos = -1;
1716 AVCodecContext *codec = is->video_st->codec;
1717 AVFilterGraph *graph = avfilter_graph_alloc();
1718 AVFilterContext *filt_out = NULL, *filt_in = NULL;
1721 enum AVPixelFormat last_format = -2;
1723 if (codec->codec->capabilities & CODEC_CAP_DR1) {
1725 codec->get_buffer = codec_get_buffer;
1726 codec->release_buffer = codec_release_buffer;
1727 codec->opaque = &is->buffer_pool;
1733 AVFilterBufferRef *picref;
1736 while (is->paused && !is->videoq.abort_request)
1739 avcodec_get_frame_defaults(frame);
1740 av_free_packet(&pkt);
1742 ret = get_video_frame(is, frame, &pts_int, &pkt, &serial);
1750 if ( last_w != is->video_st->codec->width
1751 || last_h != is->video_st->codec->height
1752 || last_format != is->video_st->codec->pix_fmt) {
1753 av_log(NULL, AV_LOG_INFO, "Frame changed from size:%dx%d to size:%dx%d\n",
1754 last_w, last_h, is->video_st->codec->width, is->video_st->codec->height);
1755 avfilter_graph_free(&graph);
1756 graph = avfilter_graph_alloc();
1757 if ((ret = configure_video_filters(graph, is, vfilters)) < 0) {
1759 event.type = FF_QUIT_EVENT;
1760 event.user.data1 = is;
1761 SDL_PushEvent(&event);
1762 av_free_packet(&pkt);
1765 filt_in = is->in_video_filter;
1766 filt_out = is->out_video_filter;
1767 last_w = is->video_st->codec->width;
1768 last_h = is->video_st->codec->height;
1769 last_format = is->video_st->codec->pix_fmt;
1772 frame->pts = pts_int;
1773 frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame);
1774 if (is->use_dr1 && frame->opaque) {
1775 FrameBuffer *buf = frame->opaque;
1776 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1777 frame->data, frame->linesize,
1778 AV_PERM_READ | AV_PERM_PRESERVE,
1779 frame->width, frame->height,
1782 avfilter_copy_frame_props(fb, frame);
1783 fb->buf->priv = buf;
1784 fb->buf->free = filter_release_buffer;
1787 av_buffersrc_add_ref(filt_in, fb, AV_BUFFERSRC_FLAG_NO_COPY);
1790 av_buffersrc_write_frame(filt_in, frame);
1792 av_free_packet(&pkt);
1795 is->frame_last_returned_time = av_gettime() / 1000000.0;
1797 ret = av_buffersink_get_buffer_ref(filt_out, &picref, 0);
1803 is->frame_last_filter_delay = av_gettime() / 1000000.0 - is->frame_last_returned_time;
1804 if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0)
1805 is->frame_last_filter_delay = 0;
1807 avfilter_copy_buf_props(frame, picref);
1809 pts_int = picref->pts;
1810 tb = filt_out->inputs[0]->time_base;
1812 frame->opaque = picref;
1814 if (av_cmp_q(tb, is->video_st->time_base)) {
1815 av_unused int64_t pts1 = pts_int;
1816 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1817 av_dlog(NULL, "video_thread(): "
1818 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1819 tb.num, tb.den, pts1,
1820 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1822 pts = pts_int * av_q2d(is->video_st->time_base);
1823 ret = queue_picture(is, frame, pts, pos, serial);
1826 pts = pts_int * av_q2d(is->video_st->time_base);
1827 ret = queue_picture(is, frame, pts, pkt.pos, serial);
1834 stream_toggle_pause(is);
1837 avcodec_flush_buffers(is->video_st->codec);
1839 avfilter_graph_free(&graph);
1841 av_free_packet(&pkt);
1842 avcodec_free_frame(&frame);
1846 static int subtitle_thread(void *arg)
1848 VideoState *is = arg;
1850 AVPacket pkt1, *pkt = &pkt1;
1854 int r, g, b, y, u, v, a;
1857 while (is->paused && !is->subtitleq.abort_request) {
1860 if (packet_queue_get(&is->subtitleq, pkt, 1, NULL) < 0)
1863 if (pkt->data == flush_pkt.data) {
1864 avcodec_flush_buffers(is->subtitle_st->codec);
1867 SDL_LockMutex(is->subpq_mutex);
1868 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1869 !is->subtitleq.abort_request) {
1870 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1872 SDL_UnlockMutex(is->subpq_mutex);
1874 if (is->subtitleq.abort_request)
1877 sp = &is->subpq[is->subpq_windex];
1879 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1880 this packet, if any */
1882 if (pkt->pts != AV_NOPTS_VALUE)
1883 pts = av_q2d(is->subtitle_st->time_base) * pkt->pts;
1885 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1886 &got_subtitle, pkt);
1887 if (got_subtitle && sp->sub.format == 0) {
1888 if (sp->sub.pts != AV_NOPTS_VALUE)
1889 pts = sp->sub.pts / (double)AV_TIME_BASE;
1892 for (i = 0; i < sp->sub.num_rects; i++)
1894 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1896 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1897 y = RGB_TO_Y_CCIR(r, g, b);
1898 u = RGB_TO_U_CCIR(r, g, b, 0);
1899 v = RGB_TO_V_CCIR(r, g, b, 0);
1900 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1904 /* now we can update the picture count */
1905 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1906 is->subpq_windex = 0;
1907 SDL_LockMutex(is->subpq_mutex);
1909 SDL_UnlockMutex(is->subpq_mutex);
1911 av_free_packet(pkt);
1916 /* copy samples for viewing in editor window */
1917 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1921 size = samples_size / sizeof(short);
1923 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1926 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1928 is->sample_array_index += len;
1929 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1930 is->sample_array_index = 0;
1935 /* return the wanted number of samples to get better sync if sync_type is video
1936 * or external master clock */
1937 static int synchronize_audio(VideoState *is, int nb_samples)
1939 int wanted_nb_samples = nb_samples;
1941 /* if not master, then we try to remove or add samples to correct the clock */
1942 if (get_master_sync_type(is) != AV_SYNC_AUDIO_MASTER) {
1943 double diff, avg_diff;
1944 int min_nb_samples, max_nb_samples;
1946 diff = get_audio_clock(is) - get_master_clock(is);
1948 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1949 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1950 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1951 /* not enough measures to have a correct estimate */
1952 is->audio_diff_avg_count++;
1954 /* estimate the A-V difference */
1955 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1957 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1958 wanted_nb_samples = nb_samples + (int)(diff * is->audio_src.freq);
1959 min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100));
1960 max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100));
1961 wanted_nb_samples = FFMIN(FFMAX(wanted_nb_samples, min_nb_samples), max_nb_samples);
1963 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1964 diff, avg_diff, wanted_nb_samples - nb_samples,
1965 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1968 /* too big difference : may be initial PTS errors, so
1970 is->audio_diff_avg_count = 0;
1971 is->audio_diff_cum = 0;
1975 return wanted_nb_samples;
1978 /* decode one audio frame and returns its uncompressed size */
1979 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1981 AVPacket *pkt_temp = &is->audio_pkt_temp;
1982 AVPacket *pkt = &is->audio_pkt;
1983 AVCodecContext *dec = is->audio_st->codec;
1984 int len1, len2, data_size, resampled_data_size;
1985 int64_t dec_channel_layout;
1989 int flush_complete = 0;
1990 int wanted_nb_samples;
1993 /* NOTE: the audio packet can contain several frames */
1994 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
1996 if (!(is->frame = avcodec_alloc_frame()))
1997 return AVERROR(ENOMEM);
1999 avcodec_get_frame_defaults(is->frame);
2007 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
2009 /* if error, we skip the frame */
2014 pkt_temp->data += len1;
2015 pkt_temp->size -= len1;
2018 /* stop sending empty packets if the decoder is finished */
2019 if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
2023 data_size = av_samples_get_buffer_size(NULL, is->frame->channels,
2024 is->frame->nb_samples,
2025 is->frame->format, 1);
2027 dec_channel_layout =
2028 (is->frame->channel_layout && is->frame->channels == av_get_channel_layout_nb_channels(is->frame->channel_layout)) ?
2029 is->frame->channel_layout : av_get_default_channel_layout(is->frame->channels);
2030 wanted_nb_samples = synchronize_audio(is, is->frame->nb_samples);
2032 if (is->frame->format != is->audio_src.fmt ||
2033 dec_channel_layout != is->audio_src.channel_layout ||
2034 is->frame->sample_rate != is->audio_src.freq ||
2035 (wanted_nb_samples != is->frame->nb_samples && !is->swr_ctx)) {
2036 swr_free(&is->swr_ctx);
2037 is->swr_ctx = swr_alloc_set_opts(NULL,
2038 is->audio_tgt.channel_layout, is->audio_tgt.fmt, is->audio_tgt.freq,
2039 dec_channel_layout, is->frame->format, is->frame->sample_rate,
2041 if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
2042 fprintf(stderr, "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
2043 is->frame->sample_rate, av_get_sample_fmt_name(is->frame->format), (int)is->frame->channels,
2044 is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels);
2047 is->audio_src.channel_layout = dec_channel_layout;
2048 is->audio_src.channels = is->frame->channels;
2049 is->audio_src.freq = is->frame->sample_rate;
2050 is->audio_src.fmt = is->frame->format;
2054 const uint8_t **in = (const uint8_t **)is->frame->extended_data;
2055 uint8_t *out[] = {is->audio_buf2};
2056 int out_count = sizeof(is->audio_buf2) / is->audio_tgt.channels / av_get_bytes_per_sample(is->audio_tgt.fmt);
2057 if (wanted_nb_samples != is->frame->nb_samples) {
2058 if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - is->frame->nb_samples) * is->audio_tgt.freq / is->frame->sample_rate,
2059 wanted_nb_samples * is->audio_tgt.freq / is->frame->sample_rate) < 0) {
2060 fprintf(stderr, "swr_set_compensation() failed\n");
2064 len2 = swr_convert(is->swr_ctx, out, out_count, in, is->frame->nb_samples);
2066 fprintf(stderr, "swr_convert() failed\n");
2069 if (len2 == out_count) {
2070 fprintf(stderr, "warning: audio buffer is probably too small\n");
2071 swr_init(is->swr_ctx);
2073 is->audio_buf = is->audio_buf2;
2074 resampled_data_size = len2 * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
2076 is->audio_buf = is->frame->data[0];
2077 resampled_data_size = data_size;
2080 /* if no pts, then compute it */
2081 pts = is->audio_clock;
2083 is->audio_clock += (double)data_size /
2084 (is->frame->channels * is->frame->sample_rate * av_get_bytes_per_sample(is->frame->format));
2087 static double last_clock;
2088 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2089 is->audio_clock - last_clock,
2090 is->audio_clock, pts);
2091 last_clock = is->audio_clock;
2094 return resampled_data_size;
2097 /* free the current packet */
2099 av_free_packet(pkt);
2100 memset(pkt_temp, 0, sizeof(*pkt_temp));
2102 if (is->paused || is->audioq.abort_request) {
2106 if (is->audioq.nb_packets == 0)
2107 SDL_CondSignal(is->continue_read_thread);
2109 /* read next packet */
2110 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1, &is->audio_pkt_temp_serial)) < 0)
2113 if (pkt->data == flush_pkt.data) {
2114 avcodec_flush_buffers(dec);
2120 /* if update the audio clock with the pts */
2121 if (pkt->pts != AV_NOPTS_VALUE) {
2122 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2127 /* prepare a new audio buffer */
2128 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2130 VideoState *is = opaque;
2131 int audio_size, len1;
2133 int frame_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, 1, is->audio_tgt.fmt, 1);
2136 audio_callback_time = av_gettime();
2139 if (is->audio_buf_index >= is->audio_buf_size) {
2140 audio_size = audio_decode_frame(is, &pts);
2141 if (audio_size < 0) {
2142 /* if error, just output silence */
2143 is->audio_buf = is->silence_buf;
2144 is->audio_buf_size = sizeof(is->silence_buf) / frame_size * frame_size;
2146 if (is->show_mode != SHOW_MODE_VIDEO)
2147 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2148 is->audio_buf_size = audio_size;
2150 is->audio_buf_index = 0;
2152 len1 = is->audio_buf_size - is->audio_buf_index;
2155 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2158 is->audio_buf_index += len1;
2160 bytes_per_sec = is->audio_tgt.freq * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
2161 is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
2162 /* Let's assume the audio driver that is used by SDL has two periods. */
2163 is->audio_current_pts = is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec;
2164 is->audio_current_pts_drift = is->audio_current_pts - audio_callback_time / 1000000.0;
2165 if (is->audioq.serial == is->audio_pkt_temp_serial)
2166 check_external_clock_sync(is, is->audio_current_pts);
2169 static int audio_open(void *opaque, int64_t wanted_channel_layout, int wanted_nb_channels, int wanted_sample_rate, struct AudioParams *audio_hw_params)
2171 SDL_AudioSpec wanted_spec, spec;
2173 const int next_nb_channels[] = {0, 0, 1, 6, 2, 6, 4, 6};
2175 env = SDL_getenv("SDL_AUDIO_CHANNELS");
2177 wanted_nb_channels = atoi(env);
2178 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2180 if (!wanted_channel_layout || wanted_nb_channels != av_get_channel_layout_nb_channels(wanted_channel_layout)) {
2181 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2182 wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX;
2184 wanted_spec.channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
2185 wanted_spec.freq = wanted_sample_rate;
2186 if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) {
2187 fprintf(stderr, "Invalid sample rate or channel count!\n");
2190 wanted_spec.format = AUDIO_S16SYS;
2191 wanted_spec.silence = 0;
2192 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2193 wanted_spec.callback = sdl_audio_callback;
2194 wanted_spec.userdata = opaque;
2195 while (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2196 fprintf(stderr, "SDL_OpenAudio (%d channels): %s\n", wanted_spec.channels, SDL_GetError());
2197 wanted_spec.channels = next_nb_channels[FFMIN(7, wanted_spec.channels)];
2198 if (!wanted_spec.channels) {
2199 fprintf(stderr, "No more channel combinations to try, audio open failed\n");
2202 wanted_channel_layout = av_get_default_channel_layout(wanted_spec.channels);
2204 if (spec.format != AUDIO_S16SYS) {
2205 fprintf(stderr, "SDL advised audio format %d is not supported!\n", spec.format);
2208 if (spec.channels != wanted_spec.channels) {
2209 wanted_channel_layout = av_get_default_channel_layout(spec.channels);
2210 if (!wanted_channel_layout) {
2211 fprintf(stderr, "SDL advised channel count %d is not supported!\n", spec.channels);
2216 audio_hw_params->fmt = AV_SAMPLE_FMT_S16;
2217 audio_hw_params->freq = spec.freq;
2218 audio_hw_params->channel_layout = wanted_channel_layout;
2219 audio_hw_params->channels = spec.channels;
2223 /* open a given stream. Return 0 if OK */
2224 static int stream_component_open(VideoState *is, int stream_index)
2226 AVFormatContext *ic = is->ic;
2227 AVCodecContext *avctx;
2230 AVDictionaryEntry *t = NULL;
2232 if (stream_index < 0 || stream_index >= ic->nb_streams)
2234 avctx = ic->streams[stream_index]->codec;
2236 codec = avcodec_find_decoder(avctx->codec_id);
2237 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec);
2239 switch(avctx->codec_type){
2240 case AVMEDIA_TYPE_AUDIO : is->last_audio_stream = stream_index; if(audio_codec_name ) codec= avcodec_find_decoder_by_name( audio_codec_name); break;
2241 case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; if(subtitle_codec_name) codec= avcodec_find_decoder_by_name(subtitle_codec_name); break;
2242 case AVMEDIA_TYPE_VIDEO : is->last_video_stream = stream_index; if(video_codec_name ) codec= avcodec_find_decoder_by_name( video_codec_name); break;
2247 avctx->workaround_bugs = workaround_bugs;
2248 avctx->lowres = lowres;
2249 if(avctx->lowres > codec->max_lowres){
2250 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
2252 avctx->lowres= codec->max_lowres;
2254 avctx->idct_algo = idct;
2255 avctx->skip_frame = skip_frame;
2256 avctx->skip_idct = skip_idct;
2257 avctx->skip_loop_filter = skip_loop_filter;
2258 avctx->error_concealment = error_concealment;
2260 if(avctx->lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2261 if (fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2262 if(codec->capabilities & CODEC_CAP_DR1)
2263 avctx->flags |= CODEC_FLAG_EMU_EDGE;
2265 if (!av_dict_get(opts, "threads", NULL, 0))
2266 av_dict_set(&opts, "threads", "auto", 0);
2268 avcodec_open2(avctx, codec, &opts) < 0)
2270 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2271 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2272 return AVERROR_OPTION_NOT_FOUND;
2275 /* prepare audio output */
2276 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2277 int audio_hw_buf_size = audio_open(is, avctx->channel_layout, avctx->channels, avctx->sample_rate, &is->audio_src);
2278 if (audio_hw_buf_size < 0)
2280 is->audio_hw_buf_size = audio_hw_buf_size;
2281 is->audio_tgt = is->audio_src;
2284 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2285 switch (avctx->codec_type) {
2286 case AVMEDIA_TYPE_AUDIO:
2287 is->audio_stream = stream_index;
2288 is->audio_st = ic->streams[stream_index];
2289 is->audio_buf_size = 0;
2290 is->audio_buf_index = 0;
2292 /* init averaging filter */
2293 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2294 is->audio_diff_avg_count = 0;
2295 /* since we do not have a precise anough audio fifo fullness,
2296 we correct audio sync only if larger than this threshold */
2297 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);
2299 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2300 memset(&is->audio_pkt_temp, 0, sizeof(is->audio_pkt_temp));
2301 packet_queue_start(&is->audioq);
2304 case AVMEDIA_TYPE_VIDEO:
2305 is->video_stream = stream_index;
2306 is->video_st = ic->streams[stream_index];
2308 packet_queue_start(&is->videoq);
2309 is->video_tid = SDL_CreateThread(video_thread, is);
2311 case AVMEDIA_TYPE_SUBTITLE:
2312 is->subtitle_stream = stream_index;
2313 is->subtitle_st = ic->streams[stream_index];
2314 packet_queue_start(&is->subtitleq);
2316 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2324 static void stream_component_close(VideoState *is, int stream_index)
2326 AVFormatContext *ic = is->ic;
2327 AVCodecContext *avctx;
2329 if (stream_index < 0 || stream_index >= ic->nb_streams)
2331 avctx = ic->streams[stream_index]->codec;
2333 switch (avctx->codec_type) {
2334 case AVMEDIA_TYPE_AUDIO:
2335 packet_queue_abort(&is->audioq);
2339 packet_queue_flush(&is->audioq);
2340 av_free_packet(&is->audio_pkt);
2341 swr_free(&is->swr_ctx);
2342 av_freep(&is->audio_buf1);
2343 is->audio_buf = NULL;
2344 avcodec_free_frame(&is->frame);
2347 av_rdft_end(is->rdft);
2348 av_freep(&is->rdft_data);
2353 case AVMEDIA_TYPE_VIDEO:
2354 packet_queue_abort(&is->videoq);
2356 /* note: we also signal this mutex to make sure we deblock the
2357 video thread in all cases */
2358 SDL_LockMutex(is->pictq_mutex);
2359 SDL_CondSignal(is->pictq_cond);
2360 SDL_UnlockMutex(is->pictq_mutex);
2362 SDL_WaitThread(is->video_tid, NULL);
2364 packet_queue_flush(&is->videoq);
2366 case AVMEDIA_TYPE_SUBTITLE:
2367 packet_queue_abort(&is->subtitleq);
2369 /* note: we also signal this mutex to make sure we deblock the
2370 video thread in all cases */
2371 SDL_LockMutex(is->subpq_mutex);
2372 is->subtitle_stream_changed = 1;
2374 SDL_CondSignal(is->subpq_cond);
2375 SDL_UnlockMutex(is->subpq_mutex);
2377 SDL_WaitThread(is->subtitle_tid, NULL);
2379 packet_queue_flush(&is->subtitleq);
2385 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2386 avcodec_close(avctx);
2388 free_buffer_pool(&is->buffer_pool);
2390 switch (avctx->codec_type) {
2391 case AVMEDIA_TYPE_AUDIO:
2392 is->audio_st = NULL;
2393 is->audio_stream = -1;
2395 case AVMEDIA_TYPE_VIDEO:
2396 is->video_st = NULL;
2397 is->video_stream = -1;
2399 case AVMEDIA_TYPE_SUBTITLE:
2400 is->subtitle_st = NULL;
2401 is->subtitle_stream = -1;
2408 static int decode_interrupt_cb(void *ctx)
2410 VideoState *is = ctx;
2411 return is->abort_request;
2414 static int is_realtime(AVFormatContext *s)
2416 if( !strcmp(s->iformat->name, "rtp")
2417 || !strcmp(s->iformat->name, "rtsp")
2418 || !strcmp(s->iformat->name, "sdp")
2422 if(s->pb && ( !strncmp(s->filename, "rtp:", 4)
2423 || !strncmp(s->filename, "udp:", 4)
2430 /* this thread gets the stream from the disk or the network */
2431 static int read_thread(void *arg)
2433 VideoState *is = arg;
2434 AVFormatContext *ic = NULL;
2436 int st_index[AVMEDIA_TYPE_NB];
2437 AVPacket pkt1, *pkt = &pkt1;
2439 int pkt_in_play_range = 0;
2440 AVDictionaryEntry *t;
2441 AVDictionary **opts;
2442 int orig_nb_streams;
2443 SDL_mutex *wait_mutex = SDL_CreateMutex();
2445 memset(st_index, -1, sizeof(st_index));
2446 is->last_video_stream = is->video_stream = -1;
2447 is->last_audio_stream = is->audio_stream = -1;
2448 is->last_subtitle_stream = is->subtitle_stream = -1;
2450 ic = avformat_alloc_context();
2451 ic->interrupt_callback.callback = decode_interrupt_cb;
2452 ic->interrupt_callback.opaque = is;
2453 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2455 print_error(is->filename, err);
2459 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2460 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2461 ret = AVERROR_OPTION_NOT_FOUND;
2467 ic->flags |= AVFMT_FLAG_GENPTS;
2469 opts = setup_find_stream_info_opts(ic, codec_opts);
2470 orig_nb_streams = ic->nb_streams;
2472 err = avformat_find_stream_info(ic, opts);
2474 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2478 for (i = 0; i < orig_nb_streams; i++)
2479 av_dict_free(&opts[i]);
2483 ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
2485 if (seek_by_bytes < 0)
2486 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2488 /* if seeking requested, we execute it */
2489 if (start_time != AV_NOPTS_VALUE) {
2492 timestamp = start_time;
2493 /* add the stream start time */
2494 if (ic->start_time != AV_NOPTS_VALUE)
2495 timestamp += ic->start_time;
2496 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2498 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2499 is->filename, (double)timestamp / AV_TIME_BASE);
2503 for (i = 0; i < ic->nb_streams; i++)
2504 ic->streams[i]->discard = AVDISCARD_ALL;
2506 st_index[AVMEDIA_TYPE_VIDEO] =
2507 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2508 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2510 st_index[AVMEDIA_TYPE_AUDIO] =
2511 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2512 wanted_stream[AVMEDIA_TYPE_AUDIO],
2513 st_index[AVMEDIA_TYPE_VIDEO],
2516 st_index[AVMEDIA_TYPE_SUBTITLE] =
2517 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2518 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2519 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2520 st_index[AVMEDIA_TYPE_AUDIO] :
2521 st_index[AVMEDIA_TYPE_VIDEO]),
2524 av_dump_format(ic, 0, is->filename, 0);
2527 is->show_mode = show_mode;
2529 /* open the streams */
2530 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2531 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2535 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2536 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2538 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2539 if (is->show_mode == SHOW_MODE_NONE)
2540 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2542 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2543 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2546 if (is->video_stream < 0 && is->audio_stream < 0) {
2547 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2552 if (infinite_buffer < 0 && is_realtime(ic))
2553 infinite_buffer = 1;
2556 if (is->abort_request)
2558 if (is->paused != is->last_paused) {
2559 is->last_paused = is->paused;
2561 is->read_pause_return = av_read_pause(ic);
2565 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
2567 (!strcmp(ic->iformat->name, "rtsp") ||
2568 (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) {
2569 /* wait 10 ms to avoid trying to get another packet */
2576 int64_t seek_target = is->seek_pos;
2577 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2578 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2579 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2580 // of the seek_pos/seek_rel variables
2582 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2584 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2586 if (is->audio_stream >= 0) {
2587 packet_queue_flush(&is->audioq);
2588 packet_queue_put(&is->audioq, &flush_pkt);
2590 if (is->subtitle_stream >= 0) {
2591 packet_queue_flush(&is->subtitleq);
2592 packet_queue_put(&is->subtitleq, &flush_pkt);
2594 if (is->video_stream >= 0) {
2595 packet_queue_flush(&is->videoq);
2596 packet_queue_put(&is->videoq, &flush_pkt);
2599 update_external_clock_pts(is, (seek_target + ic->start_time) / (double)AV_TIME_BASE);
2603 if (is->que_attachments_req) {
2604 avformat_queue_attached_pictures(ic);
2605 is->que_attachments_req = 0;
2608 /* if the queue are full, no need to read more */
2609 if (infinite_buffer<1 &&
2610 (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2611 || ( (is->audioq .nb_packets > MIN_FRAMES || is->audio_stream < 0 || is->audioq.abort_request)
2612 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0 || is->videoq.abort_request)
2613 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0 || is->subtitleq.abort_request)))) {
2615 SDL_LockMutex(wait_mutex);
2616 SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
2617 SDL_UnlockMutex(wait_mutex);
2621 if (is->video_stream >= 0) {
2622 av_init_packet(pkt);
2625 pkt->stream_index = is->video_stream;
2626 packet_queue_put(&is->videoq, pkt);
2628 if (is->audio_stream >= 0 &&
2629 is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
2630 av_init_packet(pkt);
2633 pkt->stream_index = is->audio_stream;
2634 packet_queue_put(&is->audioq, pkt);
2637 if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) {
2638 if (loop != 1 && (!loop || --loop)) {
2639 stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2640 } else if (autoexit) {
2648 ret = av_read_frame(ic, pkt);
2650 if (ret == AVERROR_EOF || url_feof(ic->pb))
2652 if (ic->pb && ic->pb->error)
2654 SDL_LockMutex(wait_mutex);
2655 SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
2656 SDL_UnlockMutex(wait_mutex);
2659 /* check if packet is in play range specified by user, then queue, otherwise discard */
2660 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2661 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2662 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2663 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2664 <= ((double)duration / 1000000);
2665 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2666 packet_queue_put(&is->audioq, pkt);
2667 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2668 packet_queue_put(&is->videoq, pkt);
2669 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2670 packet_queue_put(&is->subtitleq, pkt);
2672 av_free_packet(pkt);
2675 /* wait until the end */
2676 while (!is->abort_request) {
2682 /* close each stream */
2683 if (is->audio_stream >= 0)
2684 stream_component_close(is, is->audio_stream);
2685 if (is->video_stream >= 0)
2686 stream_component_close(is, is->video_stream);
2687 if (is->subtitle_stream >= 0)
2688 stream_component_close(is, is->subtitle_stream);
2690 avformat_close_input(&is->ic);
2696 event.type = FF_QUIT_EVENT;
2697 event.user.data1 = is;
2698 SDL_PushEvent(&event);
2700 SDL_DestroyMutex(wait_mutex);
2704 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2708 is = av_mallocz(sizeof(VideoState));
2711 av_strlcpy(is->filename, filename, sizeof(is->filename));
2712 is->iformat = iformat;
2716 /* start video display */
2717 is->pictq_mutex = SDL_CreateMutex();
2718 is->pictq_cond = SDL_CreateCond();
2720 is->subpq_mutex = SDL_CreateMutex();
2721 is->subpq_cond = SDL_CreateCond();
2723 packet_queue_init(&is->videoq);
2724 packet_queue_init(&is->audioq);
2725 packet_queue_init(&is->subtitleq);
2727 is->continue_read_thread = SDL_CreateCond();
2729 update_external_clock_pts(is, 0.0);
2730 is->audio_current_pts_drift = -av_gettime() / 1000000.0;
2731 is->video_current_pts_drift = is->audio_current_pts_drift;
2732 is->av_sync_type = av_sync_type;
2733 is->read_tid = SDL_CreateThread(read_thread, is);
2734 if (!is->read_tid) {
2741 static void stream_cycle_channel(VideoState *is, int codec_type)
2743 AVFormatContext *ic = is->ic;
2744 int start_index, stream_index;
2748 if (codec_type == AVMEDIA_TYPE_VIDEO) {
2749 start_index = is->last_video_stream;
2750 old_index = is->video_stream;
2751 } else if (codec_type == AVMEDIA_TYPE_AUDIO) {
2752 start_index = is->last_audio_stream;
2753 old_index = is->audio_stream;
2755 start_index = is->last_subtitle_stream;
2756 old_index = is->subtitle_stream;
2758 stream_index = start_index;
2760 if (++stream_index >= is->ic->nb_streams)
2762 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2765 is->last_subtitle_stream = -1;
2768 if (start_index == -1)
2772 if (stream_index == start_index)
2774 st = ic->streams[stream_index];
2775 if (st->codec->codec_type == codec_type) {
2776 /* check that parameters are OK */
2777 switch (codec_type) {
2778 case AVMEDIA_TYPE_AUDIO:
2779 if (st->codec->sample_rate != 0 &&
2780 st->codec->channels != 0)
2783 case AVMEDIA_TYPE_VIDEO:
2784 case AVMEDIA_TYPE_SUBTITLE:
2792 stream_component_close(is, old_index);
2793 stream_component_open(is, stream_index);
2794 if (codec_type == AVMEDIA_TYPE_VIDEO)
2795 is->que_attachments_req = 1;
2799 static void toggle_full_screen(VideoState *is)
2801 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2802 /* OS X needs to reallocate the SDL overlays */
2804 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++)
2805 is->pictq[i].reallocate = 1;
2807 is_full_screen = !is_full_screen;
2811 static void toggle_pause(VideoState *is)
2813 stream_toggle_pause(is);
2817 static void step_to_next_frame(VideoState *is)
2819 /* if the stream is paused unpause it, then step */
2821 stream_toggle_pause(is);
2825 static void toggle_audio_display(VideoState *is)
2827 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2828 is->show_mode = (is->show_mode + 1) % SHOW_MODE_NB;
2829 fill_rectangle(screen,
2830 is->xleft, is->ytop, is->width, is->height,
2832 SDL_UpdateRect(screen, is->xleft, is->ytop, is->width, is->height);
2835 /* handle an event sent by the GUI */
2836 static void event_loop(VideoState *cur_stream)
2839 double incr, pos, frac;
2843 SDL_WaitEvent(&event);
2844 switch (event.type) {
2846 if (exit_on_keydown) {
2847 do_exit(cur_stream);
2850 switch (event.key.keysym.sym) {
2853 do_exit(cur_stream);
2856 toggle_full_screen(cur_stream);
2857 cur_stream->force_refresh = 1;
2861 toggle_pause(cur_stream);
2863 case SDLK_s: // S: Step to next frame
2864 step_to_next_frame(cur_stream);
2867 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2870 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2873 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2876 toggle_audio_display(cur_stream);
2877 cur_stream->force_refresh = 1;
2897 if (seek_by_bytes) {
2898 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) {
2899 pos = cur_stream->video_current_pos;
2900 } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) {
2901 pos = cur_stream->audio_pkt.pos;
2903 pos = avio_tell(cur_stream->ic->pb);
2904 if (cur_stream->ic->bit_rate)
2905 incr *= cur_stream->ic->bit_rate / 8.0;
2909 stream_seek(cur_stream, pos, incr, 1);
2911 pos = get_master_clock(cur_stream);
2913 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2920 case SDL_VIDEOEXPOSE:
2921 cur_stream->force_refresh = 1;
2923 case SDL_MOUSEBUTTONDOWN:
2924 if (exit_on_mousedown) {
2925 do_exit(cur_stream);
2928 case SDL_MOUSEMOTION:
2929 if (event.type == SDL_MOUSEBUTTONDOWN) {
2932 if (event.motion.state != SDL_PRESSED)
2936 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
2937 uint64_t size = avio_size(cur_stream->ic->pb);
2938 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2942 int tns, thh, tmm, tss;
2943 tns = cur_stream->ic->duration / 1000000LL;
2945 tmm = (tns % 3600) / 60;
2947 frac = x / cur_stream->width;
2950 mm = (ns % 3600) / 60;
2952 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2953 hh, mm, ss, thh, tmm, tss);
2954 ts = frac * cur_stream->ic->duration;
2955 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2956 ts += cur_stream->ic->start_time;
2957 stream_seek(cur_stream, ts, 0, 0);
2960 case SDL_VIDEORESIZE:
2961 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2962 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2963 screen_width = cur_stream->width = event.resize.w;
2964 screen_height = cur_stream->height = event.resize.h;
2965 cur_stream->force_refresh = 1;
2969 do_exit(cur_stream);
2971 case FF_ALLOC_EVENT:
2972 alloc_picture(event.user.data1);
2974 case FF_REFRESH_EVENT:
2975 video_refresh(event.user.data1);
2976 cur_stream->refresh = 0;
2984 static int opt_frame_size(void *optctx, const char *opt, const char *arg)
2986 av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
2987 return opt_default(NULL, "video_size", arg);
2990 static int opt_width(void *optctx, const char *opt, const char *arg)
2992 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2996 static int opt_height(void *optctx, const char *opt, const char *arg)
2998 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
3002 static int opt_format(void *optctx, const char *opt, const char *arg)
3004 file_iformat = av_find_input_format(arg);
3005 if (!file_iformat) {
3006 fprintf(stderr, "Unknown input format: %s\n", arg);
3007 return AVERROR(EINVAL);
3012 static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg)
3014 av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
3015 return opt_default(NULL, "pixel_format", arg);
3018 static int opt_sync(void *optctx, const char *opt, const char *arg)
3020 if (!strcmp(arg, "audio"))
3021 av_sync_type = AV_SYNC_AUDIO_MASTER;
3022 else if (!strcmp(arg, "video"))
3023 av_sync_type = AV_SYNC_VIDEO_MASTER;
3024 else if (!strcmp(arg, "ext"))
3025 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
3027 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
3033 static int opt_seek(void *optctx, const char *opt, const char *arg)
3035 start_time = parse_time_or_die(opt, arg, 1);
3039 static int opt_duration(void *optctx, const char *opt, const char *arg)
3041 duration = parse_time_or_die(opt, arg, 1);
3045 static int opt_show_mode(void *optctx, const char *opt, const char *arg)
3047 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
3048 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
3049 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
3050 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
3054 static void opt_input_file(void *optctx, const char *filename)
3056 if (input_filename) {
3057 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3058 filename, input_filename);
3061 if (!strcmp(filename, "-"))
3063 input_filename = filename;
3066 static int opt_codec(void *o, const char *opt, const char *arg)
3068 switch(opt[strlen(opt)-1]){
3069 case 'a' : audio_codec_name = arg; break;
3070 case 's' : subtitle_codec_name = arg; break;
3071 case 'v' : video_codec_name = arg; break;
3078 static const OptionDef options[] = {
3079 #include "cmdutils_common_opts.h"
3080 { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" },
3081 { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" },
3082 { "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
3083 { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" },
3084 { "an", OPT_BOOL, { &audio_disable }, "disable audio" },
3085 { "vn", OPT_BOOL, { &video_disable }, "disable video" },
3086 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
3087 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
3088 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
3089 { "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" },
3090 { "t", HAS_ARG, { .func_arg = opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
3091 { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
3092 { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" },
3093 { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" },
3094 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" },
3095 { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" },
3096 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { &workaround_bugs }, "workaround bugs", "" },
3097 { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" },
3098 { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" },
3099 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3100 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { &lowres }, "", "" },
3101 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_loop_filter }, "", "" },
3102 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_frame }, "", "" },
3103 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_idct }, "", "" },
3104 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { &idct }, "set idct algo", "algo" },
3105 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { &error_concealment }, "set error concealment options", "bit_mask" },
3106 { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
3107 { "autoexit", OPT_BOOL | OPT_EXPERT, { &autoexit }, "exit at the end", "" },
3108 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" },
3109 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" },
3110 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" },
3111 { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" },
3112 { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" },
3113 { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" },
3115 { "vf", OPT_STRING | HAS_ARG, { &vfilters }, "video filters", "filter list" },
3117 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" },
3118 { "showmode", HAS_ARG, { .func_arg = opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
3119 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { .func_arg = opt_default }, "generic catch all option", "" },
3120 { "i", OPT_BOOL, { &dummy}, "read specified file", "input_file"},
3121 { "codec", HAS_ARG, { .func_arg = opt_codec}, "force decoder", "decoder" },
3125 static void show_usage(void)
3127 av_log(NULL, AV_LOG_INFO, "Simple media player\n");
3128 av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name);
3129 av_log(NULL, AV_LOG_INFO, "\n");
3132 void show_help_default(const char *opt, const char *arg)
3134 av_log_set_callback(log_callback_help);
3136 show_help_options(options, "Main options:", 0, OPT_EXPERT, 0);
3137 show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0);
3139 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3140 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3141 #if !CONFIG_AVFILTER
3142 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3144 show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM);
3146 printf("\nWhile playing:\n"
3148 "f toggle full screen\n"
3150 "a cycle audio channel\n"
3151 "v cycle video channel\n"
3152 "t cycle subtitle channel\n"
3153 "w show audio waves\n"
3154 "s activate frame-step mode\n"
3155 "left/right seek backward/forward 10 seconds\n"
3156 "down/up seek backward/forward 1 minute\n"
3157 "page down/page up seek backward/forward 10 minutes\n"
3158 "mouse click seek to percentage in file corresponding to fraction of width\n"
3162 static int lockmgr(void **mtx, enum AVLockOp op)
3165 case AV_LOCK_CREATE:
3166 *mtx = SDL_CreateMutex();
3170 case AV_LOCK_OBTAIN:
3171 return !!SDL_LockMutex(*mtx);
3172 case AV_LOCK_RELEASE:
3173 return !!SDL_UnlockMutex(*mtx);
3174 case AV_LOCK_DESTROY:
3175 SDL_DestroyMutex(*mtx);
3181 /* Called from the main */
3182 int main(int argc, char **argv)
3186 char dummy_videodriver[] = "SDL_VIDEODRIVER=dummy";
3188 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3189 parse_loglevel(argc, argv, options);
3191 /* register all codecs, demux and protocols */
3192 avcodec_register_all();
3194 avdevice_register_all();
3197 avfilter_register_all();
3200 avformat_network_init();
3204 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
3205 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
3207 show_banner(argc, argv, options);
3209 parse_options(NULL, argc, argv, options, opt_input_file);
3211 if (!input_filename) {
3213 fprintf(stderr, "An input file must be specified\n");
3214 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3218 if (display_disable) {
3221 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3223 flags &= ~SDL_INIT_AUDIO;
3224 if (display_disable)
3225 SDL_putenv(dummy_videodriver); /* For the event queue, we always need a video driver. */
3226 #if !defined(__MINGW32__) && !defined(__APPLE__)
3227 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3229 if (SDL_Init (flags)) {
3230 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3231 fprintf(stderr, "(Did you set the DISPLAY variable?)\n");
3235 if (!display_disable) {
3236 #if HAVE_SDL_VIDEO_SIZE
3237 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3238 fs_screen_width = vi->current_w;
3239 fs_screen_height = vi->current_h;
3243 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3244 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3245 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3247 if (av_lockmgr_register(lockmgr)) {
3248 fprintf(stderr, "Could not initialize lock manager!\n");
3252 av_init_packet(&flush_pkt);
3253 flush_pkt.data = (char *)(intptr_t)"FLUSH";
3255 is = stream_open(input_filename, file_iformat);
3257 fprintf(stderr, "Failed to initialize VideoState!\n");