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 /* external clock speed adjustment constants for realtime sources based on buffer fullness */
82 #define EXTERNAL_CLOCK_SPEED_MIN 0.900
83 #define EXTERNAL_CLOCK_SPEED_MAX 1.010
84 #define EXTERNAL_CLOCK_SPEED_STEP 0.001
86 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
87 #define AUDIO_DIFF_AVG_NB 20
89 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
90 /* TODO: We assume that a decoded and resampled frame fits into this buffer */
91 #define SAMPLE_ARRAY_SIZE (8 * 65536)
93 static int sws_flags = SWS_BICUBIC;
95 typedef struct MyAVPacketList {
97 struct MyAVPacketList *next;
101 typedef struct PacketQueue {
102 MyAVPacketList *first_pkt, *last_pkt;
111 #define VIDEO_PICTURE_QUEUE_SIZE 4
112 #define SUBPICTURE_QUEUE_SIZE 4
114 typedef struct VideoPicture {
115 double pts; // presentation timestamp for this picture
116 int64_t pos; // byte position in file
119 int width, height; /* source height & width */
120 AVRational sample_aspect_ratio;
126 AVFilterBufferRef *picref;
130 typedef struct SubPicture {
131 double pts; /* presentation time stamp for this picture */
135 typedef struct AudioParams {
139 enum AVSampleFormat fmt;
143 AV_SYNC_AUDIO_MASTER, /* default choice */
144 AV_SYNC_VIDEO_MASTER,
145 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
148 typedef struct VideoState {
149 SDL_Thread *read_tid;
150 SDL_Thread *video_tid;
151 SDL_Thread *refresh_tid;
152 AVInputFormat *iformat;
158 int que_attachments_req;
163 int read_pause_return;
170 double external_clock; ///< external clock base
171 double external_clock_drift; ///< external clock base - time (av_gettime) at which we updated external_clock
172 int64_t external_clock_time; ///< last reference time
173 double external_clock_speed; ///< speed of the external clock
176 double audio_diff_cum; /* used for AV difference average computation */
177 double audio_diff_avg_coef;
178 double audio_diff_threshold;
179 int audio_diff_avg_count;
182 int audio_hw_buf_size;
183 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[AVCODEC_MAX_AUDIO_FRAME_SIZE * 4];
184 uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
187 unsigned int audio_buf_size; /* in bytes */
188 int audio_buf_index; /* in bytes */
189 int audio_write_buf_size;
190 AVPacket audio_pkt_temp;
192 int audio_pkt_temp_serial;
193 struct AudioParams audio_src;
194 struct AudioParams audio_tgt;
195 struct SwrContext *swr_ctx;
196 double audio_current_pts;
197 double audio_current_pts_drift;
198 int frame_drops_early;
199 int frame_drops_late;
203 SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
205 int16_t sample_array[SAMPLE_ARRAY_SIZE];
206 int sample_array_index;
210 FFTSample *rdft_data;
213 SDL_Thread *subtitle_tid;
215 int subtitle_stream_changed;
216 AVStream *subtitle_st;
217 PacketQueue subtitleq;
218 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
219 int subpq_size, subpq_rindex, subpq_windex;
220 SDL_mutex *subpq_mutex;
221 SDL_cond *subpq_cond;
224 double frame_last_pts;
225 double frame_last_duration;
226 double frame_last_dropped_pts;
227 double frame_last_returned_time;
228 double frame_last_filter_delay;
229 int64_t frame_last_dropped_pos;
230 double video_clock; // pts of last decoded frame / predicted pts of next decoded frame
234 double video_current_pts; // current displayed pts (different from video_clock if frame fifos are used)
235 double video_current_pts_drift; // video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
236 int64_t video_current_pos; // current displayed file pos
237 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
238 int pictq_size, pictq_rindex, pictq_windex;
239 SDL_mutex *pictq_mutex;
240 SDL_cond *pictq_cond;
242 struct SwsContext *img_convert_ctx;
244 SDL_Rect last_display_rect;
247 int width, height, xleft, ytop;
251 AVFilterContext *in_video_filter; // the first filter in the video chain
252 AVFilterContext *out_video_filter; // the last filter in the video chain
254 FrameBuffer *buffer_pool;
258 int last_video_stream, last_audio_stream, last_subtitle_stream;
260 SDL_cond *continue_read_thread;
263 /* options specified by the user */
264 static AVInputFormat *file_iformat;
265 static const char *input_filename;
266 static const char *window_title;
267 static int fs_screen_width;
268 static int fs_screen_height;
269 static int screen_width = 0;
270 static int screen_height = 0;
271 static int audio_disable;
272 static int video_disable;
273 static int wanted_stream[AVMEDIA_TYPE_NB] = {
274 [AVMEDIA_TYPE_AUDIO] = -1,
275 [AVMEDIA_TYPE_VIDEO] = -1,
276 [AVMEDIA_TYPE_SUBTITLE] = -1,
278 static int seek_by_bytes = -1;
279 static int display_disable;
280 static int show_status = 1;
281 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
282 static int64_t start_time = AV_NOPTS_VALUE;
283 static int64_t duration = AV_NOPTS_VALUE;
284 static int workaround_bugs = 1;
286 static int genpts = 0;
287 static int lowres = 0;
288 static int idct = FF_IDCT_AUTO;
289 static enum AVDiscard skip_frame = AVDISCARD_DEFAULT;
290 static enum AVDiscard skip_idct = AVDISCARD_DEFAULT;
291 static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT;
292 static int error_concealment = 3;
293 static int decoder_reorder_pts = -1;
295 static int exit_on_keydown;
296 static int exit_on_mousedown;
298 static int framedrop = -1;
299 static int infinite_buffer = -1;
300 static enum ShowMode show_mode = SHOW_MODE_NONE;
301 static const char *audio_codec_name;
302 static const char *subtitle_codec_name;
303 static const char *video_codec_name;
304 static int rdftspeed = 20;
306 static char *vfilters = NULL;
309 /* current context */
310 static int is_full_screen;
311 static int64_t audio_callback_time;
313 static AVPacket flush_pkt;
315 #define FF_ALLOC_EVENT (SDL_USEREVENT)
316 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
317 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
319 static SDL_Surface *screen;
321 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
323 static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt)
325 MyAVPacketList *pkt1;
327 if (q->abort_request)
330 pkt1 = av_malloc(sizeof(MyAVPacketList));
335 if (pkt == &flush_pkt)
337 pkt1->serial = q->serial;
342 q->last_pkt->next = pkt1;
345 q->size += pkt1->pkt.size + sizeof(*pkt1);
346 /* XXX: should duplicate packet data in DV case */
347 SDL_CondSignal(q->cond);
351 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
355 /* duplicate the packet */
356 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
359 SDL_LockMutex(q->mutex);
360 ret = packet_queue_put_private(q, pkt);
361 SDL_UnlockMutex(q->mutex);
363 if (pkt != &flush_pkt && ret < 0)
369 /* packet queue handling */
370 static void packet_queue_init(PacketQueue *q)
372 memset(q, 0, sizeof(PacketQueue));
373 q->mutex = SDL_CreateMutex();
374 q->cond = SDL_CreateCond();
375 q->abort_request = 1;
378 static void packet_queue_flush(PacketQueue *q)
380 MyAVPacketList *pkt, *pkt1;
382 SDL_LockMutex(q->mutex);
383 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
385 av_free_packet(&pkt->pkt);
392 SDL_UnlockMutex(q->mutex);
395 static void packet_queue_destroy(PacketQueue *q)
397 packet_queue_flush(q);
398 SDL_DestroyMutex(q->mutex);
399 SDL_DestroyCond(q->cond);
402 static void packet_queue_abort(PacketQueue *q)
404 SDL_LockMutex(q->mutex);
406 q->abort_request = 1;
408 SDL_CondSignal(q->cond);
410 SDL_UnlockMutex(q->mutex);
413 static void packet_queue_start(PacketQueue *q)
415 SDL_LockMutex(q->mutex);
416 q->abort_request = 0;
417 packet_queue_put_private(q, &flush_pkt);
418 SDL_UnlockMutex(q->mutex);
421 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
422 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *serial)
424 MyAVPacketList *pkt1;
427 SDL_LockMutex(q->mutex);
430 if (q->abort_request) {
437 q->first_pkt = pkt1->next;
441 q->size -= pkt1->pkt.size + sizeof(*pkt1);
444 *serial = pkt1->serial;
452 SDL_CondWait(q->cond, q->mutex);
455 SDL_UnlockMutex(q->mutex);
459 static inline void fill_rectangle(SDL_Surface *screen,
460 int x, int y, int w, int h, int color, int update)
467 SDL_FillRect(screen, &rect, color);
468 if (update && w > 0 && h > 0)
469 SDL_UpdateRect(screen, x, y, w, h);
472 /* draw only the border of a rectangle */
473 static void fill_border(int xleft, int ytop, int width, int height, int x, int y, int w, int h, int color, int update)
477 /* fill the background */
481 w2 = width - (x + w);
487 h2 = height - (y + h);
490 fill_rectangle(screen,
494 fill_rectangle(screen,
495 xleft + width - w2, ytop,
498 fill_rectangle(screen,
502 fill_rectangle(screen,
503 xleft + w1, ytop + height - h2,
508 #define ALPHA_BLEND(a, oldp, newp, s)\
509 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
511 #define RGBA_IN(r, g, b, a, s)\
513 unsigned int v = ((const uint32_t *)(s))[0];\
514 a = (v >> 24) & 0xff;\
515 r = (v >> 16) & 0xff;\
516 g = (v >> 8) & 0xff;\
520 #define YUVA_IN(y, u, v, a, s, pal)\
522 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
523 a = (val >> 24) & 0xff;\
524 y = (val >> 16) & 0xff;\
525 u = (val >> 8) & 0xff;\
529 #define YUVA_OUT(d, y, u, v, a)\
531 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
537 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
539 int wrap, wrap3, width2, skip2;
540 int y, u, v, a, u1, v1, a1, w, h;
541 uint8_t *lum, *cb, *cr;
544 int dstx, dsty, dstw, dsth;
546 dstw = av_clip(rect->w, 0, imgw);
547 dsth = av_clip(rect->h, 0, imgh);
548 dstx = av_clip(rect->x, 0, imgw - dstw);
549 dsty = av_clip(rect->y, 0, imgh - dsth);
550 lum = dst->data[0] + dsty * dst->linesize[0];
551 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
552 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
554 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
556 wrap = dst->linesize[0];
557 wrap3 = rect->pict.linesize[0];
558 p = rect->pict.data[0];
559 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
567 YUVA_IN(y, u, v, a, p, pal);
568 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
569 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
570 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
576 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
577 YUVA_IN(y, u, v, a, p, pal);
581 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
583 YUVA_IN(y, u, v, a, p + BPP, pal);
587 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
588 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
589 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
596 YUVA_IN(y, u, v, a, p, pal);
597 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
598 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
599 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
603 p += wrap3 - dstw * BPP;
604 lum += wrap - dstw - dstx;
605 cb += dst->linesize[1] - width2 - skip2;
606 cr += dst->linesize[2] - width2 - skip2;
608 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
614 YUVA_IN(y, u, v, a, p, pal);
618 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
621 YUVA_IN(y, u, v, a, p, pal);
625 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
626 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
627 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
633 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
634 YUVA_IN(y, u, v, a, p, pal);
638 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
640 YUVA_IN(y, u, v, a, p + BPP, pal);
644 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
648 YUVA_IN(y, u, v, a, p, pal);
652 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
654 YUVA_IN(y, u, v, a, p + BPP, pal);
658 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
660 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
661 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
665 p += -wrap3 + 2 * BPP;
669 YUVA_IN(y, u, v, a, p, pal);
673 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
676 YUVA_IN(y, u, v, a, p, pal);
680 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
681 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
682 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
688 p += wrap3 + (wrap3 - dstw * BPP);
689 lum += wrap + (wrap - dstw - dstx);
690 cb += dst->linesize[1] - width2 - skip2;
691 cr += dst->linesize[2] - width2 - skip2;
693 /* handle odd height */
700 YUVA_IN(y, u, v, a, p, pal);
701 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
702 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
703 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
709 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
710 YUVA_IN(y, u, v, a, p, pal);
714 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
716 YUVA_IN(y, u, v, a, p + BPP, pal);
720 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
721 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
722 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
729 YUVA_IN(y, u, v, a, p, pal);
730 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
731 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
732 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
737 static void free_subpicture(SubPicture *sp)
739 avsubtitle_free(&sp->sub);
742 static void calculate_display_rect(SDL_Rect *rect, int scr_xleft, int scr_ytop, int scr_width, int scr_height, VideoPicture *vp)
745 int width, height, x, y;
747 if (vp->sample_aspect_ratio.num == 0)
750 aspect_ratio = av_q2d(vp->sample_aspect_ratio);
752 if (aspect_ratio <= 0.0)
754 aspect_ratio *= (float)vp->width / (float)vp->height;
756 /* XXX: we suppose the screen has a 1.0 pixel ratio */
758 width = ((int)rint(height * aspect_ratio)) & ~1;
759 if (width > scr_width) {
761 height = ((int)rint(width / aspect_ratio)) & ~1;
763 x = (scr_width - width) / 2;
764 y = (scr_height - height) / 2;
765 rect->x = scr_xleft + x;
766 rect->y = scr_ytop + y;
767 rect->w = FFMAX(width, 1);
768 rect->h = FFMAX(height, 1);
771 static void video_image_display(VideoState *is)
779 vp = &is->pictq[is->pictq_rindex];
781 if (is->subtitle_st) {
782 if (is->subpq_size > 0) {
783 sp = &is->subpq[is->subpq_rindex];
785 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
786 SDL_LockYUVOverlay (vp->bmp);
788 pict.data[0] = vp->bmp->pixels[0];
789 pict.data[1] = vp->bmp->pixels[2];
790 pict.data[2] = vp->bmp->pixels[1];
792 pict.linesize[0] = vp->bmp->pitches[0];
793 pict.linesize[1] = vp->bmp->pitches[2];
794 pict.linesize[2] = vp->bmp->pitches[1];
796 for (i = 0; i < sp->sub.num_rects; i++)
797 blend_subrect(&pict, sp->sub.rects[i],
798 vp->bmp->w, vp->bmp->h);
800 SDL_UnlockYUVOverlay (vp->bmp);
805 calculate_display_rect(&rect, is->xleft, is->ytop, is->width, is->height, vp);
807 SDL_DisplayYUVOverlay(vp->bmp, &rect);
809 if (rect.x != is->last_display_rect.x || rect.y != is->last_display_rect.y || rect.w != is->last_display_rect.w || rect.h != is->last_display_rect.h || is->force_refresh) {
810 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
811 fill_border(is->xleft, is->ytop, is->width, is->height, rect.x, rect.y, rect.w, rect.h, bgcolor, 1);
812 is->last_display_rect = rect;
817 static inline int compute_mod(int a, int b)
819 return a < 0 ? a%b + b : a%b;
822 static void video_audio_display(VideoState *s)
824 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
825 int ch, channels, h, h2, bgcolor, fgcolor;
827 int rdft_bits, nb_freq;
829 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
831 nb_freq = 1 << (rdft_bits - 1);
833 /* compute display index : center on currently output samples */
834 channels = s->audio_tgt.channels;
835 nb_display_channels = channels;
837 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
839 delay = s->audio_write_buf_size;
842 /* to be more precise, we take into account the time spent since
843 the last buffer computation */
844 if (audio_callback_time) {
845 time_diff = av_gettime() - audio_callback_time;
846 delay -= (time_diff * s->audio_tgt.freq) / 1000000;
849 delay += 2 * data_used;
850 if (delay < data_used)
853 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
854 if (s->show_mode == SHOW_MODE_WAVES) {
856 for (i = 0; i < 1000; i += channels) {
857 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
858 int a = s->sample_array[idx];
859 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
860 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
861 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
863 if (h < score && (b ^ c) < 0) {
870 s->last_i_start = i_start;
872 i_start = s->last_i_start;
875 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
876 if (s->show_mode == SHOW_MODE_WAVES) {
877 fill_rectangle(screen,
878 s->xleft, s->ytop, s->width, s->height,
881 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
883 /* total height for one channel */
884 h = s->height / nb_display_channels;
885 /* graph height / 2 */
887 for (ch = 0; ch < nb_display_channels; ch++) {
889 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
890 for (x = 0; x < s->width; x++) {
891 y = (s->sample_array[i] * h2) >> 15;
898 fill_rectangle(screen,
899 s->xleft + x, ys, 1, y,
902 if (i >= SAMPLE_ARRAY_SIZE)
903 i -= SAMPLE_ARRAY_SIZE;
907 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
909 for (ch = 1; ch < nb_display_channels; ch++) {
910 y = s->ytop + ch * h;
911 fill_rectangle(screen,
912 s->xleft, y, s->width, 1,
915 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
917 nb_display_channels= FFMIN(nb_display_channels, 2);
918 if (rdft_bits != s->rdft_bits) {
919 av_rdft_end(s->rdft);
920 av_free(s->rdft_data);
921 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
922 s->rdft_bits = rdft_bits;
923 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
927 for (ch = 0; ch < nb_display_channels; ch++) {
928 data[ch] = s->rdft_data + 2 * nb_freq * ch;
930 for (x = 0; x < 2 * nb_freq; x++) {
931 double w = (x-nb_freq) * (1.0 / nb_freq);
932 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
934 if (i >= SAMPLE_ARRAY_SIZE)
935 i -= SAMPLE_ARRAY_SIZE;
937 av_rdft_calc(s->rdft, data[ch]);
939 // least efficient way to do this, we should of course directly access it but its more than fast enough
940 for (y = 0; y < s->height; y++) {
941 double w = 1 / sqrt(nb_freq);
942 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]));
943 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
944 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
947 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
949 fill_rectangle(screen,
950 s->xpos, s->height-y, 1, 1,
954 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
957 if (s->xpos >= s->width)
962 static void stream_close(VideoState *is)
966 /* XXX: use a special url_shutdown call to abort parse cleanly */
967 is->abort_request = 1;
968 SDL_WaitThread(is->read_tid, NULL);
969 SDL_WaitThread(is->refresh_tid, NULL);
970 packet_queue_destroy(&is->videoq);
971 packet_queue_destroy(&is->audioq);
972 packet_queue_destroy(&is->subtitleq);
974 /* free all pictures */
975 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
978 avfilter_unref_bufferp(&vp->picref);
981 SDL_FreeYUVOverlay(vp->bmp);
985 SDL_DestroyMutex(is->pictq_mutex);
986 SDL_DestroyCond(is->pictq_cond);
987 SDL_DestroyMutex(is->subpq_mutex);
988 SDL_DestroyCond(is->subpq_cond);
989 SDL_DestroyCond(is->continue_read_thread);
991 if (is->img_convert_ctx)
992 sws_freeContext(is->img_convert_ctx);
997 static void do_exit(VideoState *is)
1002 av_lockmgr_register(NULL);
1006 av_freep(&vfilters);
1008 avformat_network_deinit();
1012 av_log(NULL, AV_LOG_QUIET, "%s", "");
1016 static void sigterm_handler(int sig)
1021 static int video_open(VideoState *is, int force_set_video_mode)
1023 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
1025 VideoPicture *vp = &is->pictq[is->pictq_rindex];
1028 if (is_full_screen) flags |= SDL_FULLSCREEN;
1029 else flags |= SDL_RESIZABLE;
1031 if (is_full_screen && fs_screen_width) {
1032 w = fs_screen_width;
1033 h = fs_screen_height;
1034 } else if (!is_full_screen && screen_width) {
1037 } else if (vp->width) {
1038 calculate_display_rect(&rect, 0, 0, INT_MAX, vp->height, vp);
1045 if (screen && is->width == screen->w && screen->w == w
1046 && is->height== screen->h && screen->h == h && !force_set_video_mode)
1048 screen = SDL_SetVideoMode(w, h, 0, flags);
1050 fprintf(stderr, "SDL: could not set video mode - exiting\n");
1054 window_title = input_filename;
1055 SDL_WM_SetCaption(window_title, window_title);
1057 is->width = screen->w;
1058 is->height = screen->h;
1063 /* display the current picture, if any */
1064 static void video_display(VideoState *is)
1068 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
1069 video_audio_display(is);
1070 else if (is->video_st)
1071 video_image_display(is);
1074 static int refresh_thread(void *opaque)
1076 VideoState *is= opaque;
1077 while (!is->abort_request) {
1079 event.type = FF_REFRESH_EVENT;
1080 event.user.data1 = opaque;
1081 if (!is->refresh && (!is->paused || is->force_refresh)) {
1083 SDL_PushEvent(&event);
1085 //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
1086 av_usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
1091 /* get the current audio clock value */
1092 static double get_audio_clock(VideoState *is)
1095 return is->audio_current_pts;
1097 return is->audio_current_pts_drift + av_gettime() / 1000000.0;
1101 /* get the current video clock value */
1102 static double get_video_clock(VideoState *is)
1105 return is->video_current_pts;
1107 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1111 /* get the current external clock value */
1112 static double get_external_clock(VideoState *is)
1115 return is->external_clock;
1117 double time = av_gettime() / 1000000.0;
1118 return is->external_clock_drift + time - (time - is->external_clock_time / 1000000.0) * (1.0 - is->external_clock_speed);
1122 static int get_master_sync_type(VideoState *is) {
1123 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1125 return AV_SYNC_VIDEO_MASTER;
1127 return AV_SYNC_AUDIO_MASTER;
1128 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1130 return AV_SYNC_AUDIO_MASTER;
1132 return AV_SYNC_EXTERNAL_CLOCK;
1134 return AV_SYNC_EXTERNAL_CLOCK;
1138 /* get the current master clock value */
1139 static double get_master_clock(VideoState *is)
1143 switch (get_master_sync_type(is)) {
1144 case AV_SYNC_VIDEO_MASTER:
1145 val = get_video_clock(is);
1147 case AV_SYNC_AUDIO_MASTER:
1148 val = get_audio_clock(is);
1151 val = get_external_clock(is);
1157 static void update_external_clock_pts(VideoState *is, double pts)
1159 is->external_clock_time = av_gettime();
1160 is->external_clock = pts;
1161 is->external_clock_drift = pts - is->external_clock_time / 1000000.0;
1164 static void check_external_clock_sync(VideoState *is, double pts) {
1165 if (fabs(get_external_clock(is) - pts) > AV_NOSYNC_THRESHOLD) {
1166 update_external_clock_pts(is, pts);
1170 static void update_external_clock_speed(VideoState *is, double speed) {
1171 update_external_clock_pts(is, get_external_clock(is));
1172 is->external_clock_speed = speed;
1175 static void check_external_clock_speed(VideoState *is) {
1176 if (is->video_stream >= 0 && is->videoq.nb_packets <= MIN_FRAMES / 2 ||
1177 is->audio_stream >= 0 && is->audioq.nb_packets <= MIN_FRAMES / 2) {
1178 update_external_clock_speed(is, FFMAX(EXTERNAL_CLOCK_SPEED_MIN, is->external_clock_speed - EXTERNAL_CLOCK_SPEED_STEP));
1179 } else if ((is->video_stream < 0 || is->videoq.nb_packets > MIN_FRAMES * 2) &&
1180 (is->audio_stream < 0 || is->audioq.nb_packets > MIN_FRAMES * 2)) {
1181 update_external_clock_speed(is, FFMIN(EXTERNAL_CLOCK_SPEED_MAX, is->external_clock_speed + EXTERNAL_CLOCK_SPEED_STEP));
1183 double speed = is->external_clock_speed;
1185 update_external_clock_speed(is, speed + EXTERNAL_CLOCK_SPEED_STEP * (1.0 - speed) / fabs(1.0 - speed));
1189 /* seek in the stream */
1190 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1192 if (!is->seek_req) {
1195 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1197 is->seek_flags |= AVSEEK_FLAG_BYTE;
1202 /* pause or resume the video */
1203 static void stream_toggle_pause(VideoState *is)
1206 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1207 if (is->read_pause_return != AVERROR(ENOSYS)) {
1208 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1210 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1212 update_external_clock_pts(is, get_external_clock(is));
1213 is->paused = !is->paused;
1216 static double compute_target_delay(double delay, VideoState *is)
1218 double sync_threshold, diff;
1220 /* update delay to follow master synchronisation source */
1221 if (get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER) {
1222 /* if video is slave, we try to correct big delays by
1223 duplicating or deleting a frame */
1224 diff = get_video_clock(is) - get_master_clock(is);
1226 /* skip or repeat frame. We take into account the
1227 delay to compute the threshold. I still don't know
1228 if it is the best guess */
1229 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1230 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1231 if (diff <= -sync_threshold)
1233 else if (diff >= sync_threshold)
1238 av_dlog(NULL, "video: delay=%0.3f A-V=%f\n",
1244 static void pictq_next_picture(VideoState *is) {
1245 /* update queue size and signal for next picture */
1246 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1247 is->pictq_rindex = 0;
1249 SDL_LockMutex(is->pictq_mutex);
1251 SDL_CondSignal(is->pictq_cond);
1252 SDL_UnlockMutex(is->pictq_mutex);
1255 static void pictq_prev_picture(VideoState *is) {
1256 VideoPicture *prevvp;
1257 /* update queue size and signal for the previous picture */
1258 prevvp = &is->pictq[(is->pictq_rindex + VIDEO_PICTURE_QUEUE_SIZE - 1) % VIDEO_PICTURE_QUEUE_SIZE];
1259 if (prevvp->allocated && !prevvp->skip) {
1260 SDL_LockMutex(is->pictq_mutex);
1261 if (is->pictq_size < VIDEO_PICTURE_QUEUE_SIZE - 1) {
1262 if (--is->pictq_rindex == -1)
1263 is->pictq_rindex = VIDEO_PICTURE_QUEUE_SIZE - 1;
1266 SDL_CondSignal(is->pictq_cond);
1267 SDL_UnlockMutex(is->pictq_mutex);
1271 static void update_video_pts(VideoState *is, double pts, int64_t pos, int serial) {
1272 double time = av_gettime() / 1000000.0;
1273 /* update current video pts */
1274 is->video_current_pts = pts;
1275 is->video_current_pts_drift = is->video_current_pts - time;
1276 is->video_current_pos = pos;
1277 is->frame_last_pts = pts;
1278 if (is->videoq.serial == serial)
1279 check_external_clock_sync(is, is->video_current_pts);
1282 /* called to display each frame */
1283 static void video_refresh(void *opaque)
1285 VideoState *is = opaque;
1289 SubPicture *sp, *sp2;
1291 if (!is->paused && get_master_sync_type(is) == AV_SYNC_EXTERNAL_CLOCK && is->realtime)
1292 check_external_clock_speed(is);
1295 if (is->force_refresh)
1296 pictq_prev_picture(is);
1298 if (is->pictq_size == 0) {
1299 SDL_LockMutex(is->pictq_mutex);
1300 if (is->frame_last_dropped_pts != AV_NOPTS_VALUE && is->frame_last_dropped_pts > is->frame_last_pts) {
1301 update_video_pts(is, is->frame_last_dropped_pts, is->frame_last_dropped_pos, 0);
1302 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1304 SDL_UnlockMutex(is->pictq_mutex);
1305 // nothing to do, no picture to display in the que
1307 double last_duration, duration, delay;
1308 /* dequeue the picture */
1309 vp = &is->pictq[is->pictq_rindex];
1312 pictq_next_picture(is);
1319 /* compute nominal last_duration */
1320 last_duration = vp->pts - is->frame_last_pts;
1321 if (last_duration > 0 && last_duration < 10.0) {
1322 /* if duration of the last frame was sane, update last_duration in video state */
1323 is->frame_last_duration = last_duration;
1325 delay = compute_target_delay(is->frame_last_duration, is);
1327 time= av_gettime()/1000000.0;
1328 if (time < is->frame_timer + delay)
1332 is->frame_timer += delay * FFMAX(1, floor((time-is->frame_timer) / delay));
1334 SDL_LockMutex(is->pictq_mutex);
1335 update_video_pts(is, vp->pts, vp->pos, vp->serial);
1336 SDL_UnlockMutex(is->pictq_mutex);
1338 if (is->pictq_size > 1) {
1339 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1340 duration = nextvp->pts - vp->pts;
1341 if((framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){
1342 is->frame_drops_late++;
1343 pictq_next_picture(is);
1348 if (is->subtitle_st) {
1349 if (is->subtitle_stream_changed) {
1350 SDL_LockMutex(is->subpq_mutex);
1352 while (is->subpq_size) {
1353 free_subpicture(&is->subpq[is->subpq_rindex]);
1355 /* update queue size and signal for next picture */
1356 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1357 is->subpq_rindex = 0;
1361 is->subtitle_stream_changed = 0;
1363 SDL_CondSignal(is->subpq_cond);
1364 SDL_UnlockMutex(is->subpq_mutex);
1366 if (is->subpq_size > 0) {
1367 sp = &is->subpq[is->subpq_rindex];
1369 if (is->subpq_size > 1)
1370 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1374 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1375 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1377 free_subpicture(sp);
1379 /* update queue size and signal for next picture */
1380 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1381 is->subpq_rindex = 0;
1383 SDL_LockMutex(is->subpq_mutex);
1385 SDL_CondSignal(is->subpq_cond);
1386 SDL_UnlockMutex(is->subpq_mutex);
1393 /* display picture */
1394 if (!display_disable)
1397 pictq_next_picture(is);
1399 } else if (is->audio_st) {
1400 /* draw the next audio frame */
1402 /* if only audio stream, then display the audio bars (better
1403 than nothing, just to test the implementation */
1405 /* display picture */
1406 if (!display_disable)
1409 is->force_refresh = 0;
1411 static int64_t last_time;
1413 int aqsize, vqsize, sqsize;
1416 cur_time = av_gettime();
1417 if (!last_time || (cur_time - last_time) >= 30000) {
1422 aqsize = is->audioq.size;
1424 vqsize = is->videoq.size;
1425 if (is->subtitle_st)
1426 sqsize = is->subtitleq.size;
1428 if (is->audio_st && is->video_st)
1429 av_diff = get_audio_clock(is) - get_video_clock(is);
1430 printf("%7.2f A-V:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1431 get_master_clock(is),
1433 is->frame_drops_early + is->frame_drops_late,
1437 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1438 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1440 last_time = cur_time;
1445 /* allocate a picture (needs to do that in main thread to avoid
1446 potential locking problems */
1447 static void alloc_picture(VideoState *is)
1451 vp = &is->pictq[is->pictq_windex];
1454 SDL_FreeYUVOverlay(vp->bmp);
1457 avfilter_unref_bufferp(&vp->picref);
1462 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1465 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1466 /* SDL allocates a buffer smaller than requested if the video
1467 * overlay hardware is unable to support the requested size. */
1468 fprintf(stderr, "Error: the video system does not support an image\n"
1469 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1470 "to reduce the image size.\n", vp->width, vp->height );
1474 SDL_LockMutex(is->pictq_mutex);
1476 SDL_CondSignal(is->pictq_cond);
1477 SDL_UnlockMutex(is->pictq_mutex);
1480 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos, int serial)
1483 double frame_delay, pts = pts1;
1485 /* compute the exact PTS for the picture if it is omitted in the stream
1486 * pts1 is the dts of the pkt / pts of the frame */
1488 /* update video clock with pts, if present */
1489 is->video_clock = pts;
1491 pts = is->video_clock;
1493 /* update video clock for next frame */
1494 frame_delay = av_q2d(is->video_st->codec->time_base);
1495 /* for MPEG2, the frame can be repeated, so we update the
1496 clock accordingly */
1497 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1498 is->video_clock += frame_delay;
1500 #if defined(DEBUG_SYNC) && 0
1501 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1502 av_get_picture_type_char(src_frame->pict_type), pts, pts1);
1505 /* wait until we have space to put a new picture */
1506 SDL_LockMutex(is->pictq_mutex);
1508 /* keep the last already displayed picture in the queue */
1509 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE - 2 &&
1510 !is->videoq.abort_request) {
1511 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1513 SDL_UnlockMutex(is->pictq_mutex);
1515 if (is->videoq.abort_request)
1518 vp = &is->pictq[is->pictq_windex];
1521 vp->sample_aspect_ratio = ((AVFilterBufferRef *)src_frame->opaque)->video->sample_aspect_ratio;
1523 vp->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, src_frame);
1526 /* alloc or resize hardware picture buffer */
1527 if (!vp->bmp || vp->reallocate || !vp->allocated ||
1528 vp->width != src_frame->width ||
1529 vp->height != src_frame->height) {
1534 vp->width = src_frame->width;
1535 vp->height = src_frame->height;
1537 /* the allocation must be done in the main thread to avoid
1538 locking problems. */
1539 event.type = FF_ALLOC_EVENT;
1540 event.user.data1 = is;
1541 SDL_PushEvent(&event);
1543 /* wait until the picture is allocated */
1544 SDL_LockMutex(is->pictq_mutex);
1545 while (!vp->allocated && !is->videoq.abort_request) {
1546 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1548 /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */
1549 if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) {
1550 while (!vp->allocated) {
1551 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1554 SDL_UnlockMutex(is->pictq_mutex);
1556 if (is->videoq.abort_request)
1560 /* if the frame is not skipped, then display it */
1562 AVPicture pict = { { 0 } };
1564 avfilter_unref_bufferp(&vp->picref);
1565 vp->picref = src_frame->opaque;
1568 /* get a pointer on the bitmap */
1569 SDL_LockYUVOverlay (vp->bmp);
1571 pict.data[0] = vp->bmp->pixels[0];
1572 pict.data[1] = vp->bmp->pixels[2];
1573 pict.data[2] = vp->bmp->pixels[1];
1575 pict.linesize[0] = vp->bmp->pitches[0];
1576 pict.linesize[1] = vp->bmp->pitches[2];
1577 pict.linesize[2] = vp->bmp->pitches[1];
1580 // FIXME use direct rendering
1581 av_picture_copy(&pict, (AVPicture *)src_frame,
1582 src_frame->format, vp->width, vp->height);
1584 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1585 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1586 vp->width, vp->height, src_frame->format, vp->width, vp->height,
1587 AV_PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1588 if (is->img_convert_ctx == NULL) {
1589 fprintf(stderr, "Cannot initialize the conversion context\n");
1592 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1593 0, vp->height, pict.data, pict.linesize);
1595 /* update the bitmap content */
1596 SDL_UnlockYUVOverlay(vp->bmp);
1601 vp->serial = serial;
1603 /* now we can update the picture count */
1604 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1605 is->pictq_windex = 0;
1606 SDL_LockMutex(is->pictq_mutex);
1608 SDL_UnlockMutex(is->pictq_mutex);
1613 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt, int *serial)
1617 if (packet_queue_get(&is->videoq, pkt, 1, serial) < 0)
1620 if (pkt->data == flush_pkt.data) {
1621 avcodec_flush_buffers(is->video_st->codec);
1623 SDL_LockMutex(is->pictq_mutex);
1624 // Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1625 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1626 is->pictq[i].skip = 1;
1628 while (is->pictq_size && !is->videoq.abort_request) {
1629 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1631 is->video_current_pos = -1;
1632 is->frame_last_pts = AV_NOPTS_VALUE;
1633 is->frame_last_duration = 0;
1634 is->frame_timer = (double)av_gettime() / 1000000.0;
1635 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1636 SDL_UnlockMutex(is->pictq_mutex);
1641 if(avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt) < 0)
1647 if (decoder_reorder_pts == -1) {
1648 *pts = av_frame_get_best_effort_timestamp(frame);
1649 } else if (decoder_reorder_pts) {
1650 *pts = frame->pkt_pts;
1652 *pts = frame->pkt_dts;
1655 if (*pts == AV_NOPTS_VALUE) {
1659 if (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) {
1660 SDL_LockMutex(is->pictq_mutex);
1661 if (is->frame_last_pts != AV_NOPTS_VALUE && *pts) {
1662 double clockdiff = get_video_clock(is) - get_master_clock(is);
1663 double dpts = av_q2d(is->video_st->time_base) * *pts;
1664 double ptsdiff = dpts - is->frame_last_pts;
1665 if (fabs(clockdiff) < AV_NOSYNC_THRESHOLD &&
1666 ptsdiff > 0 && ptsdiff < AV_NOSYNC_THRESHOLD &&
1667 clockdiff + ptsdiff - is->frame_last_filter_delay < 0) {
1668 is->frame_last_dropped_pos = pkt->pos;
1669 is->frame_last_dropped_pts = dpts;
1670 is->frame_drops_early++;
1674 SDL_UnlockMutex(is->pictq_mutex);
1683 static int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph,
1684 AVFilterContext *source_ctx, AVFilterContext *sink_ctx)
1687 AVFilterInOut *outputs = NULL, *inputs = NULL;
1690 outputs = avfilter_inout_alloc();
1691 inputs = avfilter_inout_alloc();
1692 if (!outputs || !inputs) {
1693 ret = AVERROR(ENOMEM);
1697 outputs->name = av_strdup("in");
1698 outputs->filter_ctx = source_ctx;
1699 outputs->pad_idx = 0;
1700 outputs->next = NULL;
1702 inputs->name = av_strdup("out");
1703 inputs->filter_ctx = sink_ctx;
1704 inputs->pad_idx = 0;
1705 inputs->next = NULL;
1707 if ((ret = avfilter_graph_parse(graph, filtergraph, &inputs, &outputs, NULL)) < 0)
1710 if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0)
1714 ret = avfilter_graph_config(graph, NULL);
1716 avfilter_inout_free(&outputs);
1717 avfilter_inout_free(&inputs);
1721 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1723 static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE };
1724 char sws_flags_str[128];
1725 char buffersrc_args[256];
1727 AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
1728 AVFilterContext *filt_src = NULL, *filt_out = NULL, *filt_crop;
1729 AVCodecContext *codec = is->video_st->codec;
1731 if (!buffersink_params)
1732 return AVERROR(ENOMEM);
1734 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1735 graph->scale_sws_opts = av_strdup(sws_flags_str);
1737 snprintf(buffersrc_args, sizeof(buffersrc_args),
1738 "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
1739 codec->width, codec->height, codec->pix_fmt,
1740 is->video_st->time_base.num, is->video_st->time_base.den,
1741 codec->sample_aspect_ratio.num, FFMAX(codec->sample_aspect_ratio.den, 1));
1743 if ((ret = avfilter_graph_create_filter(&filt_src,
1744 avfilter_get_by_name("buffer"),
1745 "ffplay_buffer", buffersrc_args, NULL,
1749 buffersink_params->pixel_fmts = pix_fmts;
1750 ret = avfilter_graph_create_filter(&filt_out,
1751 avfilter_get_by_name("ffbuffersink"),
1752 "ffplay_buffersink", NULL, buffersink_params, graph);
1756 /* SDL YUV code is not handling odd width/height for some driver
1757 * combinations, therefore we crop the picture to an even width/height. */
1758 if ((ret = avfilter_graph_create_filter(&filt_crop,
1759 avfilter_get_by_name("crop"),
1760 "ffplay_crop", "floor(in_w/2)*2:floor(in_h/2)*2", NULL, graph)) < 0)
1762 if ((ret = avfilter_link(filt_crop, 0, filt_out, 0)) < 0)
1765 if ((ret = configure_filtergraph(graph, vfilters, filt_src, filt_crop)) < 0)
1768 is->in_video_filter = filt_src;
1769 is->out_video_filter = filt_out;
1772 av_freep(&buffersink_params);
1776 #endif /* CONFIG_AVFILTER */
1778 static int video_thread(void *arg)
1780 AVPacket pkt = { 0 };
1781 VideoState *is = arg;
1782 AVFrame *frame = avcodec_alloc_frame();
1783 int64_t pts_int = AV_NOPTS_VALUE, pos = -1;
1789 AVCodecContext *codec = is->video_st->codec;
1790 AVFilterGraph *graph = avfilter_graph_alloc();
1791 AVFilterContext *filt_out = NULL, *filt_in = NULL;
1794 enum AVPixelFormat last_format = -2;
1796 if (codec->codec->capabilities & CODEC_CAP_DR1) {
1798 codec->get_buffer = codec_get_buffer;
1799 codec->release_buffer = codec_release_buffer;
1800 codec->opaque = &is->buffer_pool;
1806 AVFilterBufferRef *picref;
1809 while (is->paused && !is->videoq.abort_request)
1812 avcodec_get_frame_defaults(frame);
1813 av_free_packet(&pkt);
1815 ret = get_video_frame(is, frame, &pts_int, &pkt, &serial);
1823 if ( last_w != is->video_st->codec->width
1824 || last_h != is->video_st->codec->height
1825 || last_format != is->video_st->codec->pix_fmt) {
1826 av_log(NULL, AV_LOG_INFO, "Frame changed from size:%dx%d to size:%dx%d\n",
1827 last_w, last_h, is->video_st->codec->width, is->video_st->codec->height);
1828 avfilter_graph_free(&graph);
1829 graph = avfilter_graph_alloc();
1830 if ((ret = configure_video_filters(graph, is, vfilters)) < 0) {
1832 event.type = FF_QUIT_EVENT;
1833 event.user.data1 = is;
1834 SDL_PushEvent(&event);
1835 av_free_packet(&pkt);
1838 filt_in = is->in_video_filter;
1839 filt_out = is->out_video_filter;
1840 last_w = is->video_st->codec->width;
1841 last_h = is->video_st->codec->height;
1842 last_format = is->video_st->codec->pix_fmt;
1845 frame->pts = pts_int;
1846 frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame);
1847 if (is->use_dr1 && frame->opaque) {
1848 FrameBuffer *buf = frame->opaque;
1849 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1850 frame->data, frame->linesize,
1851 AV_PERM_READ | AV_PERM_PRESERVE,
1852 frame->width, frame->height,
1855 avfilter_copy_frame_props(fb, frame);
1856 fb->buf->priv = buf;
1857 fb->buf->free = filter_release_buffer;
1860 av_buffersrc_add_ref(filt_in, fb, AV_BUFFERSRC_FLAG_NO_COPY);
1863 av_buffersrc_write_frame(filt_in, frame);
1865 av_free_packet(&pkt);
1868 is->frame_last_returned_time = av_gettime() / 1000000.0;
1870 ret = av_buffersink_get_buffer_ref(filt_out, &picref, 0);
1876 is->frame_last_filter_delay = av_gettime() / 1000000.0 - is->frame_last_returned_time;
1877 if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0)
1878 is->frame_last_filter_delay = 0;
1880 avfilter_copy_buf_props(frame, picref);
1882 pts_int = picref->pts;
1883 tb = filt_out->inputs[0]->time_base;
1885 frame->opaque = picref;
1887 if (av_cmp_q(tb, is->video_st->time_base)) {
1888 av_unused int64_t pts1 = pts_int;
1889 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1890 av_dlog(NULL, "video_thread(): "
1891 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1892 tb.num, tb.den, pts1,
1893 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1895 pts = pts_int * av_q2d(is->video_st->time_base);
1896 ret = queue_picture(is, frame, pts, pos, serial);
1899 pts = pts_int * av_q2d(is->video_st->time_base);
1900 ret = queue_picture(is, frame, pts, pkt.pos, serial);
1907 stream_toggle_pause(is);
1910 avcodec_flush_buffers(is->video_st->codec);
1912 avfilter_graph_free(&graph);
1914 av_free_packet(&pkt);
1915 avcodec_free_frame(&frame);
1919 static int subtitle_thread(void *arg)
1921 VideoState *is = arg;
1923 AVPacket pkt1, *pkt = &pkt1;
1927 int r, g, b, y, u, v, a;
1930 while (is->paused && !is->subtitleq.abort_request) {
1933 if (packet_queue_get(&is->subtitleq, pkt, 1, NULL) < 0)
1936 if (pkt->data == flush_pkt.data) {
1937 avcodec_flush_buffers(is->subtitle_st->codec);
1940 SDL_LockMutex(is->subpq_mutex);
1941 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1942 !is->subtitleq.abort_request) {
1943 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1945 SDL_UnlockMutex(is->subpq_mutex);
1947 if (is->subtitleq.abort_request)
1950 sp = &is->subpq[is->subpq_windex];
1952 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1953 this packet, if any */
1955 if (pkt->pts != AV_NOPTS_VALUE)
1956 pts = av_q2d(is->subtitle_st->time_base) * pkt->pts;
1958 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1959 &got_subtitle, pkt);
1960 if (got_subtitle && sp->sub.format == 0) {
1961 if (sp->sub.pts != AV_NOPTS_VALUE)
1962 pts = sp->sub.pts / (double)AV_TIME_BASE;
1965 for (i = 0; i < sp->sub.num_rects; i++)
1967 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1969 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1970 y = RGB_TO_Y_CCIR(r, g, b);
1971 u = RGB_TO_U_CCIR(r, g, b, 0);
1972 v = RGB_TO_V_CCIR(r, g, b, 0);
1973 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1977 /* now we can update the picture count */
1978 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1979 is->subpq_windex = 0;
1980 SDL_LockMutex(is->subpq_mutex);
1982 SDL_UnlockMutex(is->subpq_mutex);
1984 av_free_packet(pkt);
1989 /* copy samples for viewing in editor window */
1990 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1994 size = samples_size / sizeof(short);
1996 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1999 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
2001 is->sample_array_index += len;
2002 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
2003 is->sample_array_index = 0;
2008 /* return the wanted number of samples to get better sync if sync_type is video
2009 * or external master clock */
2010 static int synchronize_audio(VideoState *is, int nb_samples)
2012 int wanted_nb_samples = nb_samples;
2014 /* if not master, then we try to remove or add samples to correct the clock */
2015 if (get_master_sync_type(is) != AV_SYNC_AUDIO_MASTER) {
2016 double diff, avg_diff;
2017 int min_nb_samples, max_nb_samples;
2019 diff = get_audio_clock(is) - get_master_clock(is);
2021 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
2022 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2023 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2024 /* not enough measures to have a correct estimate */
2025 is->audio_diff_avg_count++;
2027 /* estimate the A-V difference */
2028 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2030 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2031 wanted_nb_samples = nb_samples + (int)(diff * is->audio_src.freq);
2032 min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100));
2033 max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100));
2034 wanted_nb_samples = FFMIN(FFMAX(wanted_nb_samples, min_nb_samples), max_nb_samples);
2036 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2037 diff, avg_diff, wanted_nb_samples - nb_samples,
2038 is->audio_clock, is->video_clock, is->audio_diff_threshold);
2041 /* too big difference : may be initial PTS errors, so
2043 is->audio_diff_avg_count = 0;
2044 is->audio_diff_cum = 0;
2048 return wanted_nb_samples;
2051 /* decode one audio frame and returns its uncompressed size */
2052 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2054 AVPacket *pkt_temp = &is->audio_pkt_temp;
2055 AVPacket *pkt = &is->audio_pkt;
2056 AVCodecContext *dec = is->audio_st->codec;
2057 int len1, len2, data_size, resampled_data_size;
2058 int64_t dec_channel_layout;
2062 int flush_complete = 0;
2063 int wanted_nb_samples;
2066 /* NOTE: the audio packet can contain several frames */
2067 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
2069 if (!(is->frame = avcodec_alloc_frame()))
2070 return AVERROR(ENOMEM);
2072 avcodec_get_frame_defaults(is->frame);
2080 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
2082 /* if error, we skip the frame */
2087 pkt_temp->data += len1;
2088 pkt_temp->size -= len1;
2091 /* stop sending empty packets if the decoder is finished */
2092 if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
2096 data_size = av_samples_get_buffer_size(NULL, is->frame->channels,
2097 is->frame->nb_samples,
2098 is->frame->format, 1);
2100 dec_channel_layout =
2101 (is->frame->channel_layout && is->frame->channels == av_get_channel_layout_nb_channels(is->frame->channel_layout)) ?
2102 is->frame->channel_layout : av_get_default_channel_layout(is->frame->channels);
2103 wanted_nb_samples = synchronize_audio(is, is->frame->nb_samples);
2105 if (is->frame->format != is->audio_src.fmt ||
2106 dec_channel_layout != is->audio_src.channel_layout ||
2107 is->frame->sample_rate != is->audio_src.freq ||
2108 (wanted_nb_samples != is->frame->nb_samples && !is->swr_ctx)) {
2109 swr_free(&is->swr_ctx);
2110 is->swr_ctx = swr_alloc_set_opts(NULL,
2111 is->audio_tgt.channel_layout, is->audio_tgt.fmt, is->audio_tgt.freq,
2112 dec_channel_layout, is->frame->format, is->frame->sample_rate,
2114 if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
2115 fprintf(stderr, "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
2116 is->frame->sample_rate, av_get_sample_fmt_name(is->frame->format), (int)is->frame->channels,
2117 is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels);
2120 is->audio_src.channel_layout = dec_channel_layout;
2121 is->audio_src.channels = is->frame->channels;
2122 is->audio_src.freq = is->frame->sample_rate;
2123 is->audio_src.fmt = is->frame->format;
2127 const uint8_t **in = (const uint8_t **)is->frame->extended_data;
2128 uint8_t *out[] = {is->audio_buf2};
2129 int out_count = sizeof(is->audio_buf2) / is->audio_tgt.channels / av_get_bytes_per_sample(is->audio_tgt.fmt);
2130 if (wanted_nb_samples != is->frame->nb_samples) {
2131 if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - is->frame->nb_samples) * is->audio_tgt.freq / is->frame->sample_rate,
2132 wanted_nb_samples * is->audio_tgt.freq / is->frame->sample_rate) < 0) {
2133 fprintf(stderr, "swr_set_compensation() failed\n");
2137 len2 = swr_convert(is->swr_ctx, out, out_count, in, is->frame->nb_samples);
2139 fprintf(stderr, "swr_convert() failed\n");
2142 if (len2 == out_count) {
2143 fprintf(stderr, "warning: audio buffer is probably too small\n");
2144 swr_init(is->swr_ctx);
2146 is->audio_buf = is->audio_buf2;
2147 resampled_data_size = len2 * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
2149 is->audio_buf = is->frame->data[0];
2150 resampled_data_size = data_size;
2153 /* if no pts, then compute it */
2154 pts = is->audio_clock;
2156 is->audio_clock += (double)data_size /
2157 (is->frame->channels * is->frame->sample_rate * av_get_bytes_per_sample(is->frame->format));
2160 static double last_clock;
2161 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2162 is->audio_clock - last_clock,
2163 is->audio_clock, pts);
2164 last_clock = is->audio_clock;
2167 return resampled_data_size;
2170 /* free the current packet */
2172 av_free_packet(pkt);
2173 memset(pkt_temp, 0, sizeof(*pkt_temp));
2175 if (is->paused || is->audioq.abort_request) {
2179 if (is->audioq.nb_packets == 0)
2180 SDL_CondSignal(is->continue_read_thread);
2182 /* read next packet */
2183 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1, &is->audio_pkt_temp_serial)) < 0)
2186 if (pkt->data == flush_pkt.data) {
2187 avcodec_flush_buffers(dec);
2193 /* if update the audio clock with the pts */
2194 if (pkt->pts != AV_NOPTS_VALUE) {
2195 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2200 /* prepare a new audio buffer */
2201 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2203 VideoState *is = opaque;
2204 int audio_size, len1;
2206 int frame_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, 1, is->audio_tgt.fmt, 1);
2209 audio_callback_time = av_gettime();
2212 if (is->audio_buf_index >= is->audio_buf_size) {
2213 audio_size = audio_decode_frame(is, &pts);
2214 if (audio_size < 0) {
2215 /* if error, just output silence */
2216 is->audio_buf = is->silence_buf;
2217 is->audio_buf_size = sizeof(is->silence_buf) / frame_size * frame_size;
2219 if (is->show_mode != SHOW_MODE_VIDEO)
2220 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2221 is->audio_buf_size = audio_size;
2223 is->audio_buf_index = 0;
2225 len1 = is->audio_buf_size - is->audio_buf_index;
2228 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2231 is->audio_buf_index += len1;
2233 bytes_per_sec = is->audio_tgt.freq * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
2234 is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
2235 /* Let's assume the audio driver that is used by SDL has two periods. */
2236 is->audio_current_pts = is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec;
2237 is->audio_current_pts_drift = is->audio_current_pts - audio_callback_time / 1000000.0;
2238 if (is->audioq.serial == is->audio_pkt_temp_serial)
2239 check_external_clock_sync(is, is->audio_current_pts);
2242 static int audio_open(void *opaque, int64_t wanted_channel_layout, int wanted_nb_channels, int wanted_sample_rate, struct AudioParams *audio_hw_params)
2244 SDL_AudioSpec wanted_spec, spec;
2246 const int next_nb_channels[] = {0, 0, 1, 6, 2, 6, 4, 6};
2248 env = SDL_getenv("SDL_AUDIO_CHANNELS");
2250 wanted_nb_channels = atoi(env);
2251 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2253 if (!wanted_channel_layout || wanted_nb_channels != av_get_channel_layout_nb_channels(wanted_channel_layout)) {
2254 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2255 wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX;
2257 wanted_spec.channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
2258 wanted_spec.freq = wanted_sample_rate;
2259 if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) {
2260 fprintf(stderr, "Invalid sample rate or channel count!\n");
2263 wanted_spec.format = AUDIO_S16SYS;
2264 wanted_spec.silence = 0;
2265 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2266 wanted_spec.callback = sdl_audio_callback;
2267 wanted_spec.userdata = opaque;
2268 while (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2269 fprintf(stderr, "SDL_OpenAudio (%d channels): %s\n", wanted_spec.channels, SDL_GetError());
2270 wanted_spec.channels = next_nb_channels[FFMIN(7, wanted_spec.channels)];
2271 if (!wanted_spec.channels) {
2272 fprintf(stderr, "No more channel combinations to try, audio open failed\n");
2275 wanted_channel_layout = av_get_default_channel_layout(wanted_spec.channels);
2277 if (spec.format != AUDIO_S16SYS) {
2278 fprintf(stderr, "SDL advised audio format %d is not supported!\n", spec.format);
2281 if (spec.channels != wanted_spec.channels) {
2282 wanted_channel_layout = av_get_default_channel_layout(spec.channels);
2283 if (!wanted_channel_layout) {
2284 fprintf(stderr, "SDL advised channel count %d is not supported!\n", spec.channels);
2289 audio_hw_params->fmt = AV_SAMPLE_FMT_S16;
2290 audio_hw_params->freq = spec.freq;
2291 audio_hw_params->channel_layout = wanted_channel_layout;
2292 audio_hw_params->channels = spec.channels;
2296 /* open a given stream. Return 0 if OK */
2297 static int stream_component_open(VideoState *is, int stream_index)
2299 AVFormatContext *ic = is->ic;
2300 AVCodecContext *avctx;
2303 AVDictionaryEntry *t = NULL;
2305 if (stream_index < 0 || stream_index >= ic->nb_streams)
2307 avctx = ic->streams[stream_index]->codec;
2309 codec = avcodec_find_decoder(avctx->codec_id);
2311 switch(avctx->codec_type){
2312 case AVMEDIA_TYPE_AUDIO : is->last_audio_stream = stream_index; if(audio_codec_name ) codec= avcodec_find_decoder_by_name( audio_codec_name); break;
2313 case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; if(subtitle_codec_name) codec= avcodec_find_decoder_by_name(subtitle_codec_name); break;
2314 case AVMEDIA_TYPE_VIDEO : is->last_video_stream = stream_index; if(video_codec_name ) codec= avcodec_find_decoder_by_name( video_codec_name); break;
2319 avctx->workaround_bugs = workaround_bugs;
2320 avctx->lowres = lowres;
2321 if(avctx->lowres > codec->max_lowres){
2322 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
2324 avctx->lowres= codec->max_lowres;
2326 avctx->idct_algo = idct;
2327 avctx->skip_frame = skip_frame;
2328 avctx->skip_idct = skip_idct;
2329 avctx->skip_loop_filter = skip_loop_filter;
2330 avctx->error_concealment = error_concealment;
2332 if(avctx->lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2333 if (fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2334 if(codec->capabilities & CODEC_CAP_DR1)
2335 avctx->flags |= CODEC_FLAG_EMU_EDGE;
2337 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec);
2338 if (!av_dict_get(opts, "threads", NULL, 0))
2339 av_dict_set(&opts, "threads", "auto", 0);
2340 if (avcodec_open2(avctx, codec, &opts) < 0)
2342 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2343 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2344 return AVERROR_OPTION_NOT_FOUND;
2347 /* prepare audio output */
2348 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2349 int audio_hw_buf_size = audio_open(is, avctx->channel_layout, avctx->channels, avctx->sample_rate, &is->audio_src);
2350 if (audio_hw_buf_size < 0)
2352 is->audio_hw_buf_size = audio_hw_buf_size;
2353 is->audio_tgt = is->audio_src;
2356 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2357 switch (avctx->codec_type) {
2358 case AVMEDIA_TYPE_AUDIO:
2359 is->audio_stream = stream_index;
2360 is->audio_st = ic->streams[stream_index];
2361 is->audio_buf_size = 0;
2362 is->audio_buf_index = 0;
2364 /* init averaging filter */
2365 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2366 is->audio_diff_avg_count = 0;
2367 /* since we do not have a precise anough audio fifo fullness,
2368 we correct audio sync only if larger than this threshold */
2369 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);
2371 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2372 memset(&is->audio_pkt_temp, 0, sizeof(is->audio_pkt_temp));
2373 packet_queue_start(&is->audioq);
2376 case AVMEDIA_TYPE_VIDEO:
2377 is->video_stream = stream_index;
2378 is->video_st = ic->streams[stream_index];
2380 packet_queue_start(&is->videoq);
2381 is->video_tid = SDL_CreateThread(video_thread, is);
2383 case AVMEDIA_TYPE_SUBTITLE:
2384 is->subtitle_stream = stream_index;
2385 is->subtitle_st = ic->streams[stream_index];
2386 packet_queue_start(&is->subtitleq);
2388 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2396 static void stream_component_close(VideoState *is, int stream_index)
2398 AVFormatContext *ic = is->ic;
2399 AVCodecContext *avctx;
2401 if (stream_index < 0 || stream_index >= ic->nb_streams)
2403 avctx = ic->streams[stream_index]->codec;
2405 switch (avctx->codec_type) {
2406 case AVMEDIA_TYPE_AUDIO:
2407 packet_queue_abort(&is->audioq);
2411 packet_queue_flush(&is->audioq);
2412 av_free_packet(&is->audio_pkt);
2413 swr_free(&is->swr_ctx);
2414 av_freep(&is->audio_buf1);
2415 is->audio_buf = NULL;
2416 avcodec_free_frame(&is->frame);
2419 av_rdft_end(is->rdft);
2420 av_freep(&is->rdft_data);
2425 case AVMEDIA_TYPE_VIDEO:
2426 packet_queue_abort(&is->videoq);
2428 /* note: we also signal this mutex to make sure we deblock the
2429 video thread in all cases */
2430 SDL_LockMutex(is->pictq_mutex);
2431 SDL_CondSignal(is->pictq_cond);
2432 SDL_UnlockMutex(is->pictq_mutex);
2434 SDL_WaitThread(is->video_tid, NULL);
2436 packet_queue_flush(&is->videoq);
2438 case AVMEDIA_TYPE_SUBTITLE:
2439 packet_queue_abort(&is->subtitleq);
2441 /* note: we also signal this mutex to make sure we deblock the
2442 video thread in all cases */
2443 SDL_LockMutex(is->subpq_mutex);
2444 is->subtitle_stream_changed = 1;
2446 SDL_CondSignal(is->subpq_cond);
2447 SDL_UnlockMutex(is->subpq_mutex);
2449 SDL_WaitThread(is->subtitle_tid, NULL);
2451 packet_queue_flush(&is->subtitleq);
2457 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2458 avcodec_close(avctx);
2460 free_buffer_pool(&is->buffer_pool);
2462 switch (avctx->codec_type) {
2463 case AVMEDIA_TYPE_AUDIO:
2464 is->audio_st = NULL;
2465 is->audio_stream = -1;
2467 case AVMEDIA_TYPE_VIDEO:
2468 is->video_st = NULL;
2469 is->video_stream = -1;
2471 case AVMEDIA_TYPE_SUBTITLE:
2472 is->subtitle_st = NULL;
2473 is->subtitle_stream = -1;
2480 static int decode_interrupt_cb(void *ctx)
2482 VideoState *is = ctx;
2483 return is->abort_request;
2486 static int is_realtime(AVFormatContext *s)
2488 if( !strcmp(s->iformat->name, "rtp")
2489 || !strcmp(s->iformat->name, "rtsp")
2490 || !strcmp(s->iformat->name, "sdp")
2494 if(s->pb && ( !strncmp(s->filename, "rtp:", 4)
2495 || !strncmp(s->filename, "udp:", 4)
2502 /* this thread gets the stream from the disk or the network */
2503 static int read_thread(void *arg)
2505 VideoState *is = arg;
2506 AVFormatContext *ic = NULL;
2508 int st_index[AVMEDIA_TYPE_NB];
2509 AVPacket pkt1, *pkt = &pkt1;
2511 int pkt_in_play_range = 0;
2512 AVDictionaryEntry *t;
2513 AVDictionary **opts;
2514 int orig_nb_streams;
2515 SDL_mutex *wait_mutex = SDL_CreateMutex();
2517 memset(st_index, -1, sizeof(st_index));
2518 is->last_video_stream = is->video_stream = -1;
2519 is->last_audio_stream = is->audio_stream = -1;
2520 is->last_subtitle_stream = is->subtitle_stream = -1;
2522 ic = avformat_alloc_context();
2523 ic->interrupt_callback.callback = decode_interrupt_cb;
2524 ic->interrupt_callback.opaque = is;
2525 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2527 print_error(is->filename, err);
2531 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2532 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2533 ret = AVERROR_OPTION_NOT_FOUND;
2539 ic->flags |= AVFMT_FLAG_GENPTS;
2541 opts = setup_find_stream_info_opts(ic, codec_opts);
2542 orig_nb_streams = ic->nb_streams;
2544 err = avformat_find_stream_info(ic, opts);
2546 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2550 for (i = 0; i < orig_nb_streams; i++)
2551 av_dict_free(&opts[i]);
2555 ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
2557 if (seek_by_bytes < 0)
2558 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2560 /* if seeking requested, we execute it */
2561 if (start_time != AV_NOPTS_VALUE) {
2564 timestamp = start_time;
2565 /* add the stream start time */
2566 if (ic->start_time != AV_NOPTS_VALUE)
2567 timestamp += ic->start_time;
2568 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2570 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2571 is->filename, (double)timestamp / AV_TIME_BASE);
2575 is->realtime = is_realtime(ic);
2577 for (i = 0; i < ic->nb_streams; i++)
2578 ic->streams[i]->discard = AVDISCARD_ALL;
2580 st_index[AVMEDIA_TYPE_VIDEO] =
2581 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2582 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2584 st_index[AVMEDIA_TYPE_AUDIO] =
2585 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2586 wanted_stream[AVMEDIA_TYPE_AUDIO],
2587 st_index[AVMEDIA_TYPE_VIDEO],
2590 st_index[AVMEDIA_TYPE_SUBTITLE] =
2591 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2592 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2593 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2594 st_index[AVMEDIA_TYPE_AUDIO] :
2595 st_index[AVMEDIA_TYPE_VIDEO]),
2598 av_dump_format(ic, 0, is->filename, 0);
2601 is->show_mode = show_mode;
2603 /* open the streams */
2604 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2605 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2609 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2610 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2612 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2613 if (is->show_mode == SHOW_MODE_NONE)
2614 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2616 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2617 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2620 if (is->video_stream < 0 && is->audio_stream < 0) {
2621 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2626 if (infinite_buffer < 0 && is->realtime)
2627 infinite_buffer = 1;
2630 if (is->abort_request)
2632 if (is->paused != is->last_paused) {
2633 is->last_paused = is->paused;
2635 is->read_pause_return = av_read_pause(ic);
2639 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
2641 (!strcmp(ic->iformat->name, "rtsp") ||
2642 (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) {
2643 /* wait 10 ms to avoid trying to get another packet */
2650 int64_t seek_target = is->seek_pos;
2651 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2652 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2653 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2654 // of the seek_pos/seek_rel variables
2656 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2658 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2660 if (is->audio_stream >= 0) {
2661 packet_queue_flush(&is->audioq);
2662 packet_queue_put(&is->audioq, &flush_pkt);
2664 if (is->subtitle_stream >= 0) {
2665 packet_queue_flush(&is->subtitleq);
2666 packet_queue_put(&is->subtitleq, &flush_pkt);
2668 if (is->video_stream >= 0) {
2669 packet_queue_flush(&is->videoq);
2670 packet_queue_put(&is->videoq, &flush_pkt);
2673 update_external_clock_pts(is, (seek_target + ic->start_time) / (double)AV_TIME_BASE);
2677 if (is->que_attachments_req) {
2678 avformat_queue_attached_pictures(ic);
2679 is->que_attachments_req = 0;
2682 /* if the queue are full, no need to read more */
2683 if (infinite_buffer<1 &&
2684 (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2685 || ( (is->audioq .nb_packets > MIN_FRAMES || is->audio_stream < 0 || is->audioq.abort_request)
2686 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0 || is->videoq.abort_request)
2687 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0 || is->subtitleq.abort_request)))) {
2689 SDL_LockMutex(wait_mutex);
2690 SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
2691 SDL_UnlockMutex(wait_mutex);
2695 if (is->video_stream >= 0) {
2696 av_init_packet(pkt);
2699 pkt->stream_index = is->video_stream;
2700 packet_queue_put(&is->videoq, pkt);
2702 if (is->audio_stream >= 0 &&
2703 is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
2704 av_init_packet(pkt);
2707 pkt->stream_index = is->audio_stream;
2708 packet_queue_put(&is->audioq, pkt);
2711 if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) {
2712 if (loop != 1 && (!loop || --loop)) {
2713 stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2714 } else if (autoexit) {
2722 ret = av_read_frame(ic, pkt);
2724 if (ret == AVERROR_EOF || url_feof(ic->pb))
2726 if (ic->pb && ic->pb->error)
2728 SDL_LockMutex(wait_mutex);
2729 SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
2730 SDL_UnlockMutex(wait_mutex);
2733 /* check if packet is in play range specified by user, then queue, otherwise discard */
2734 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2735 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2736 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2737 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2738 <= ((double)duration / 1000000);
2739 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2740 packet_queue_put(&is->audioq, pkt);
2741 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2742 packet_queue_put(&is->videoq, pkt);
2743 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2744 packet_queue_put(&is->subtitleq, pkt);
2746 av_free_packet(pkt);
2749 /* wait until the end */
2750 while (!is->abort_request) {
2756 /* close each stream */
2757 if (is->audio_stream >= 0)
2758 stream_component_close(is, is->audio_stream);
2759 if (is->video_stream >= 0)
2760 stream_component_close(is, is->video_stream);
2761 if (is->subtitle_stream >= 0)
2762 stream_component_close(is, is->subtitle_stream);
2764 avformat_close_input(&is->ic);
2770 event.type = FF_QUIT_EVENT;
2771 event.user.data1 = is;
2772 SDL_PushEvent(&event);
2774 SDL_DestroyMutex(wait_mutex);
2778 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2782 is = av_mallocz(sizeof(VideoState));
2785 av_strlcpy(is->filename, filename, sizeof(is->filename));
2786 is->iformat = iformat;
2790 /* start video display */
2791 is->pictq_mutex = SDL_CreateMutex();
2792 is->pictq_cond = SDL_CreateCond();
2794 is->subpq_mutex = SDL_CreateMutex();
2795 is->subpq_cond = SDL_CreateCond();
2797 packet_queue_init(&is->videoq);
2798 packet_queue_init(&is->audioq);
2799 packet_queue_init(&is->subtitleq);
2801 is->continue_read_thread = SDL_CreateCond();
2803 update_external_clock_pts(is, 0.0);
2804 update_external_clock_speed(is, 1.0);
2805 is->audio_current_pts_drift = -av_gettime() / 1000000.0;
2806 is->video_current_pts_drift = is->audio_current_pts_drift;
2807 is->av_sync_type = av_sync_type;
2808 is->read_tid = SDL_CreateThread(read_thread, is);
2809 if (!is->read_tid) {
2816 static void stream_cycle_channel(VideoState *is, int codec_type)
2818 AVFormatContext *ic = is->ic;
2819 int start_index, stream_index;
2823 if (codec_type == AVMEDIA_TYPE_VIDEO) {
2824 start_index = is->last_video_stream;
2825 old_index = is->video_stream;
2826 } else if (codec_type == AVMEDIA_TYPE_AUDIO) {
2827 start_index = is->last_audio_stream;
2828 old_index = is->audio_stream;
2830 start_index = is->last_subtitle_stream;
2831 old_index = is->subtitle_stream;
2833 stream_index = start_index;
2835 if (++stream_index >= is->ic->nb_streams)
2837 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2840 is->last_subtitle_stream = -1;
2843 if (start_index == -1)
2847 if (stream_index == start_index)
2849 st = ic->streams[stream_index];
2850 if (st->codec->codec_type == codec_type) {
2851 /* check that parameters are OK */
2852 switch (codec_type) {
2853 case AVMEDIA_TYPE_AUDIO:
2854 if (st->codec->sample_rate != 0 &&
2855 st->codec->channels != 0)
2858 case AVMEDIA_TYPE_VIDEO:
2859 case AVMEDIA_TYPE_SUBTITLE:
2867 stream_component_close(is, old_index);
2868 stream_component_open(is, stream_index);
2869 if (codec_type == AVMEDIA_TYPE_VIDEO)
2870 is->que_attachments_req = 1;
2874 static void toggle_full_screen(VideoState *is)
2876 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2877 /* OS X needs to reallocate the SDL overlays */
2879 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++)
2880 is->pictq[i].reallocate = 1;
2882 is_full_screen = !is_full_screen;
2886 static void toggle_pause(VideoState *is)
2888 stream_toggle_pause(is);
2892 static void step_to_next_frame(VideoState *is)
2894 /* if the stream is paused unpause it, then step */
2896 stream_toggle_pause(is);
2900 static void toggle_audio_display(VideoState *is)
2902 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2903 is->show_mode = (is->show_mode + 1) % SHOW_MODE_NB;
2904 fill_rectangle(screen,
2905 is->xleft, is->ytop, is->width, is->height,
2909 /* handle an event sent by the GUI */
2910 static void event_loop(VideoState *cur_stream)
2913 double incr, pos, frac;
2917 SDL_WaitEvent(&event);
2918 switch (event.type) {
2920 if (exit_on_keydown) {
2921 do_exit(cur_stream);
2924 switch (event.key.keysym.sym) {
2927 do_exit(cur_stream);
2930 toggle_full_screen(cur_stream);
2931 cur_stream->force_refresh = 1;
2935 toggle_pause(cur_stream);
2937 case SDLK_s: // S: Step to next frame
2938 step_to_next_frame(cur_stream);
2941 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2944 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2947 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2950 toggle_audio_display(cur_stream);
2951 cur_stream->force_refresh = 1;
2971 if (seek_by_bytes) {
2972 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) {
2973 pos = cur_stream->video_current_pos;
2974 } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) {
2975 pos = cur_stream->audio_pkt.pos;
2977 pos = avio_tell(cur_stream->ic->pb);
2978 if (cur_stream->ic->bit_rate)
2979 incr *= cur_stream->ic->bit_rate / 8.0;
2983 stream_seek(cur_stream, pos, incr, 1);
2985 pos = get_master_clock(cur_stream);
2987 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2994 case SDL_VIDEOEXPOSE:
2995 cur_stream->force_refresh = 1;
2997 case SDL_MOUSEBUTTONDOWN:
2998 if (exit_on_mousedown) {
2999 do_exit(cur_stream);
3002 case SDL_MOUSEMOTION:
3003 if (event.type == SDL_MOUSEBUTTONDOWN) {
3006 if (event.motion.state != SDL_PRESSED)
3010 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
3011 uint64_t size = avio_size(cur_stream->ic->pb);
3012 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
3016 int tns, thh, tmm, tss;
3017 tns = cur_stream->ic->duration / 1000000LL;
3019 tmm = (tns % 3600) / 60;
3021 frac = x / cur_stream->width;
3024 mm = (ns % 3600) / 60;
3026 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
3027 hh, mm, ss, thh, tmm, tss);
3028 ts = frac * cur_stream->ic->duration;
3029 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
3030 ts += cur_stream->ic->start_time;
3031 stream_seek(cur_stream, ts, 0, 0);
3034 case SDL_VIDEORESIZE:
3035 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
3036 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
3037 screen_width = cur_stream->width = event.resize.w;
3038 screen_height = cur_stream->height = event.resize.h;
3039 cur_stream->force_refresh = 1;
3043 do_exit(cur_stream);
3045 case FF_ALLOC_EVENT:
3046 alloc_picture(event.user.data1);
3048 case FF_REFRESH_EVENT:
3049 video_refresh(event.user.data1);
3050 cur_stream->refresh = 0;
3058 static int opt_frame_size(void *optctx, const char *opt, const char *arg)
3060 av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
3061 return opt_default(NULL, "video_size", arg);
3064 static int opt_width(void *optctx, const char *opt, const char *arg)
3066 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
3070 static int opt_height(void *optctx, const char *opt, const char *arg)
3072 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
3076 static int opt_format(void *optctx, const char *opt, const char *arg)
3078 file_iformat = av_find_input_format(arg);
3079 if (!file_iformat) {
3080 fprintf(stderr, "Unknown input format: %s\n", arg);
3081 return AVERROR(EINVAL);
3086 static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg)
3088 av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
3089 return opt_default(NULL, "pixel_format", arg);
3092 static int opt_sync(void *optctx, const char *opt, const char *arg)
3094 if (!strcmp(arg, "audio"))
3095 av_sync_type = AV_SYNC_AUDIO_MASTER;
3096 else if (!strcmp(arg, "video"))
3097 av_sync_type = AV_SYNC_VIDEO_MASTER;
3098 else if (!strcmp(arg, "ext"))
3099 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
3101 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
3107 static int opt_seek(void *optctx, const char *opt, const char *arg)
3109 start_time = parse_time_or_die(opt, arg, 1);
3113 static int opt_duration(void *optctx, const char *opt, const char *arg)
3115 duration = parse_time_or_die(opt, arg, 1);
3119 static int opt_show_mode(void *optctx, const char *opt, const char *arg)
3121 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
3122 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
3123 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
3124 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
3128 static void opt_input_file(void *optctx, const char *filename)
3130 if (input_filename) {
3131 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3132 filename, input_filename);
3135 if (!strcmp(filename, "-"))
3137 input_filename = filename;
3140 static int opt_codec(void *o, const char *opt, const char *arg)
3142 switch(opt[strlen(opt)-1]){
3143 case 'a' : audio_codec_name = arg; break;
3144 case 's' : subtitle_codec_name = arg; break;
3145 case 'v' : video_codec_name = arg; break;
3152 static const OptionDef options[] = {
3153 #include "cmdutils_common_opts.h"
3154 { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" },
3155 { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" },
3156 { "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
3157 { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" },
3158 { "an", OPT_BOOL, { &audio_disable }, "disable audio" },
3159 { "vn", OPT_BOOL, { &video_disable }, "disable video" },
3160 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
3161 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
3162 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
3163 { "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" },
3164 { "t", HAS_ARG, { .func_arg = opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
3165 { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
3166 { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" },
3167 { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" },
3168 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" },
3169 { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" },
3170 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { &workaround_bugs }, "workaround bugs", "" },
3171 { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" },
3172 { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" },
3173 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3174 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { &lowres }, "", "" },
3175 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_loop_filter }, "", "" },
3176 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_frame }, "", "" },
3177 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_idct }, "", "" },
3178 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { &idct }, "set idct algo", "algo" },
3179 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { &error_concealment }, "set error concealment options", "bit_mask" },
3180 { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
3181 { "autoexit", OPT_BOOL | OPT_EXPERT, { &autoexit }, "exit at the end", "" },
3182 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" },
3183 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" },
3184 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" },
3185 { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" },
3186 { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" },
3187 { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" },
3189 { "vf", OPT_STRING | HAS_ARG, { &vfilters }, "video filters", "filter list" },
3191 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" },
3192 { "showmode", HAS_ARG, { .func_arg = opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
3193 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { .func_arg = opt_default }, "generic catch all option", "" },
3194 { "i", OPT_BOOL, { &dummy}, "read specified file", "input_file"},
3195 { "codec", HAS_ARG, { .func_arg = opt_codec}, "force decoder", "decoder" },
3199 static void show_usage(void)
3201 av_log(NULL, AV_LOG_INFO, "Simple media player\n");
3202 av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name);
3203 av_log(NULL, AV_LOG_INFO, "\n");
3206 void show_help_default(const char *opt, const char *arg)
3208 av_log_set_callback(log_callback_help);
3210 show_help_options(options, "Main options:", 0, OPT_EXPERT, 0);
3211 show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0);
3213 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3214 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3215 #if !CONFIG_AVFILTER
3216 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3218 show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM);
3220 printf("\nWhile playing:\n"
3222 "f toggle full screen\n"
3224 "a cycle audio channel\n"
3225 "v cycle video channel\n"
3226 "t cycle subtitle channel\n"
3227 "w show audio waves\n"
3228 "s activate frame-step mode\n"
3229 "left/right seek backward/forward 10 seconds\n"
3230 "down/up seek backward/forward 1 minute\n"
3231 "page down/page up seek backward/forward 10 minutes\n"
3232 "mouse click seek to percentage in file corresponding to fraction of width\n"
3236 static int lockmgr(void **mtx, enum AVLockOp op)
3239 case AV_LOCK_CREATE:
3240 *mtx = SDL_CreateMutex();
3244 case AV_LOCK_OBTAIN:
3245 return !!SDL_LockMutex(*mtx);
3246 case AV_LOCK_RELEASE:
3247 return !!SDL_UnlockMutex(*mtx);
3248 case AV_LOCK_DESTROY:
3249 SDL_DestroyMutex(*mtx);
3255 /* Called from the main */
3256 int main(int argc, char **argv)
3260 char dummy_videodriver[] = "SDL_VIDEODRIVER=dummy";
3262 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3263 parse_loglevel(argc, argv, options);
3265 /* register all codecs, demux and protocols */
3266 avcodec_register_all();
3268 avdevice_register_all();
3271 avfilter_register_all();
3274 avformat_network_init();
3278 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
3279 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
3281 show_banner(argc, argv, options);
3283 parse_options(NULL, argc, argv, options, opt_input_file);
3285 if (!input_filename) {
3287 fprintf(stderr, "An input file must be specified\n");
3288 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3292 if (display_disable) {
3295 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3297 flags &= ~SDL_INIT_AUDIO;
3298 if (display_disable)
3299 SDL_putenv(dummy_videodriver); /* For the event queue, we always need a video driver. */
3300 #if !defined(__MINGW32__) && !defined(__APPLE__)
3301 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3303 if (SDL_Init (flags)) {
3304 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3305 fprintf(stderr, "(Did you set the DISPLAY variable?)\n");
3309 if (!display_disable) {
3310 #if HAVE_SDL_VIDEO_SIZE
3311 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3312 fs_screen_width = vi->current_w;
3313 fs_screen_height = vi->current_h;
3317 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3318 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3319 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3321 if (av_lockmgr_register(lockmgr)) {
3322 fprintf(stderr, "Could not initialize lock manager!\n");
3326 av_init_packet(&flush_pkt);
3327 flush_pkt.data = (char *)(intptr_t)"FLUSH";
3329 is = stream_open(input_filename, file_iformat);
3331 fprintf(stderr, "Failed to initialize VideoState!\n");