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/buffersink.h"
52 # include "libavfilter/buffersrc.h"
56 #include <SDL_thread.h>
62 const char program_name[] = "ffplay";
63 const int program_birth_year = 2003;
65 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
68 /* SDL audio buffer size, in samples. Should be small to have precise
69 A/V sync as SDL does not have hardware buffer fullness info. */
70 #define SDL_AUDIO_BUFFER_SIZE 1024
72 /* no AV sync correction is done if below the minimum AV sync threshold */
73 #define AV_SYNC_THRESHOLD_MIN 0.01
74 /* AV sync correction is done if above the maximum AV sync threshold */
75 #define AV_SYNC_THRESHOLD_MAX 0.1
76 /* If a frame duration is longer than this, it will not be duplicated to compensate AV sync */
77 #define AV_SYNC_FRAMEDUP_THRESHOLD 0.1
78 /* no AV correction is done if too big error */
79 #define AV_NOSYNC_THRESHOLD 10.0
81 /* maximum audio speed change to get correct sync */
82 #define SAMPLE_CORRECTION_PERCENT_MAX 10
84 /* external clock speed adjustment constants for realtime sources based on buffer fullness */
85 #define EXTERNAL_CLOCK_SPEED_MIN 0.900
86 #define EXTERNAL_CLOCK_SPEED_MAX 1.010
87 #define EXTERNAL_CLOCK_SPEED_STEP 0.001
89 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
90 #define AUDIO_DIFF_AVG_NB 20
92 /* polls for possible required screen refresh at least this often, should be less than 1/fps */
93 #define REFRESH_RATE 0.01
95 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
96 /* TODO: We assume that a decoded and resampled frame fits into this buffer */
97 #define SAMPLE_ARRAY_SIZE (8 * 65536)
99 #define CURSOR_HIDE_DELAY 1000000
101 static int64_t sws_flags = SWS_BICUBIC;
103 typedef struct MyAVPacketList {
105 struct MyAVPacketList *next;
109 typedef struct PacketQueue {
110 MyAVPacketList *first_pkt, *last_pkt;
119 #define VIDEO_PICTURE_QUEUE_SIZE 3
120 #define SUBPICTURE_QUEUE_SIZE 4
122 typedef struct VideoPicture {
123 double pts; // presentation timestamp for this picture
124 int64_t pos; // byte position in file
126 int width, height; /* source height & width */
134 typedef struct SubPicture {
135 double pts; /* presentation time stamp for this picture */
140 typedef struct AudioParams {
143 int64_t channel_layout;
144 enum AVSampleFormat fmt;
147 typedef struct Clock {
148 double pts; /* clock base */
149 double pts_drift; /* clock base minus time at which we updated the clock */
152 int serial; /* clock is based on a packet with this serial */
154 int *queue_serial; /* pointer to the current packet queue serial, used for obsolete clock detection */
158 AV_SYNC_AUDIO_MASTER, /* default choice */
159 AV_SYNC_VIDEO_MASTER,
160 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
163 typedef struct VideoState {
164 SDL_Thread *read_tid;
165 SDL_Thread *video_tid;
166 AVInputFormat *iformat;
172 int queue_attachments_req;
177 int read_pause_return;
192 int audio_clock_serial;
193 double audio_diff_cum; /* used for AV difference average computation */
194 double audio_diff_avg_coef;
195 double audio_diff_threshold;
196 int audio_diff_avg_count;
199 int audio_hw_buf_size;
200 uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
203 unsigned int audio_buf_size; /* in bytes */
204 unsigned int audio_buf1_size;
205 int audio_buf_index; /* in bytes */
206 int audio_write_buf_size;
207 int audio_buf_frames_pending;
208 AVPacket audio_pkt_temp;
210 int audio_pkt_temp_serial;
211 int audio_last_serial;
212 struct AudioParams audio_src;
214 struct AudioParams audio_filter_src;
216 struct AudioParams audio_tgt;
217 struct SwrContext *swr_ctx;
218 int frame_drops_early;
219 int frame_drops_late;
221 int64_t audio_frame_next_pts;
224 SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
226 int16_t sample_array[SAMPLE_ARRAY_SIZE];
227 int sample_array_index;
231 FFTSample *rdft_data;
233 double last_vis_time;
235 SDL_Thread *subtitle_tid;
237 AVStream *subtitle_st;
238 PacketQueue subtitleq;
239 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
240 int subpq_size, subpq_rindex, subpq_windex;
241 SDL_mutex *subpq_mutex;
242 SDL_cond *subpq_cond;
245 double frame_last_pts;
246 double frame_last_duration;
247 double frame_last_dropped_pts;
248 double frame_last_returned_time;
249 double frame_last_filter_delay;
250 int64_t frame_last_dropped_pos;
251 int frame_last_dropped_serial;
255 int64_t video_current_pos; // current displayed file pos
256 double max_frame_duration; // maximum duration of a frame - above this, we consider the jump a timestamp discontinuity
257 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
258 int pictq_size, pictq_rindex, pictq_windex;
259 SDL_mutex *pictq_mutex;
260 SDL_cond *pictq_cond;
262 struct SwsContext *img_convert_ctx;
264 SDL_Rect last_display_rect;
267 int width, height, xleft, ytop;
271 AVFilterContext *in_video_filter; // the first filter in the video chain
272 AVFilterContext *out_video_filter; // the last filter in the video chain
273 AVFilterContext *in_audio_filter; // the first filter in the audio chain
274 AVFilterContext *out_audio_filter; // the last filter in the audio chain
275 AVFilterGraph *agraph; // audio filter graph
278 int last_video_stream, last_audio_stream, last_subtitle_stream;
280 SDL_cond *continue_read_thread;
283 /* options specified by the user */
284 static AVInputFormat *file_iformat;
285 static const char *input_filename;
286 static const char *window_title;
287 static int fs_screen_width;
288 static int fs_screen_height;
289 static int default_width = 640;
290 static int default_height = 480;
291 static int screen_width = 0;
292 static int screen_height = 0;
293 static int audio_disable;
294 static int video_disable;
295 static int subtitle_disable;
296 static int wanted_stream[AVMEDIA_TYPE_NB] = {
297 [AVMEDIA_TYPE_AUDIO] = -1,
298 [AVMEDIA_TYPE_VIDEO] = -1,
299 [AVMEDIA_TYPE_SUBTITLE] = -1,
301 static int seek_by_bytes = -1;
302 static int display_disable;
303 static int show_status = 1;
304 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
305 static int64_t start_time = AV_NOPTS_VALUE;
306 static int64_t duration = AV_NOPTS_VALUE;
307 static int workaround_bugs = 1;
309 static int genpts = 0;
310 static int lowres = 0;
311 static int error_concealment = 3;
312 static int decoder_reorder_pts = -1;
314 static int exit_on_keydown;
315 static int exit_on_mousedown;
317 static int framedrop = -1;
318 static int infinite_buffer = -1;
319 static enum ShowMode show_mode = SHOW_MODE_NONE;
320 static const char *audio_codec_name;
321 static const char *subtitle_codec_name;
322 static const char *video_codec_name;
323 double rdftspeed = 0.02;
324 static int64_t cursor_last_shown;
325 static int cursor_hidden = 0;
327 static char *vfilters = NULL;
328 static char *afilters = NULL;
331 /* current context */
332 static int is_full_screen;
333 static int64_t audio_callback_time;
335 static AVPacket flush_pkt;
337 #define FF_ALLOC_EVENT (SDL_USEREVENT)
338 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
340 static SDL_Surface *screen;
343 int cmp_audio_fmts(enum AVSampleFormat fmt1, int64_t channel_count1,
344 enum AVSampleFormat fmt2, int64_t channel_count2)
346 /* If channel count == 1, planar and non-planar formats are the same */
347 if (channel_count1 == 1 && channel_count2 == 1)
348 return av_get_packed_sample_fmt(fmt1) != av_get_packed_sample_fmt(fmt2);
350 return channel_count1 != channel_count2 || fmt1 != fmt2;
354 int64_t get_valid_channel_layout(int64_t channel_layout, int channels)
356 if (channel_layout && av_get_channel_layout_nb_channels(channel_layout) == channels)
357 return channel_layout;
362 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
364 static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt)
366 MyAVPacketList *pkt1;
368 if (q->abort_request)
371 pkt1 = av_malloc(sizeof(MyAVPacketList));
376 if (pkt == &flush_pkt)
378 pkt1->serial = q->serial;
383 q->last_pkt->next = pkt1;
386 q->size += pkt1->pkt.size + sizeof(*pkt1);
387 /* XXX: should duplicate packet data in DV case */
388 SDL_CondSignal(q->cond);
392 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
396 /* duplicate the packet */
397 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
400 SDL_LockMutex(q->mutex);
401 ret = packet_queue_put_private(q, pkt);
402 SDL_UnlockMutex(q->mutex);
404 if (pkt != &flush_pkt && ret < 0)
410 static int packet_queue_put_nullpacket(PacketQueue *q, int stream_index)
412 AVPacket pkt1, *pkt = &pkt1;
416 pkt->stream_index = stream_index;
417 return packet_queue_put(q, pkt);
420 /* packet queue handling */
421 static void packet_queue_init(PacketQueue *q)
423 memset(q, 0, sizeof(PacketQueue));
424 q->mutex = SDL_CreateMutex();
425 q->cond = SDL_CreateCond();
426 q->abort_request = 1;
429 static void packet_queue_flush(PacketQueue *q)
431 MyAVPacketList *pkt, *pkt1;
433 SDL_LockMutex(q->mutex);
434 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
436 av_free_packet(&pkt->pkt);
443 SDL_UnlockMutex(q->mutex);
446 static void packet_queue_destroy(PacketQueue *q)
448 packet_queue_flush(q);
449 SDL_DestroyMutex(q->mutex);
450 SDL_DestroyCond(q->cond);
453 static void packet_queue_abort(PacketQueue *q)
455 SDL_LockMutex(q->mutex);
457 q->abort_request = 1;
459 SDL_CondSignal(q->cond);
461 SDL_UnlockMutex(q->mutex);
464 static void packet_queue_start(PacketQueue *q)
466 SDL_LockMutex(q->mutex);
467 q->abort_request = 0;
468 packet_queue_put_private(q, &flush_pkt);
469 SDL_UnlockMutex(q->mutex);
472 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
473 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *serial)
475 MyAVPacketList *pkt1;
478 SDL_LockMutex(q->mutex);
481 if (q->abort_request) {
488 q->first_pkt = pkt1->next;
492 q->size -= pkt1->pkt.size + sizeof(*pkt1);
495 *serial = pkt1->serial;
503 SDL_CondWait(q->cond, q->mutex);
506 SDL_UnlockMutex(q->mutex);
510 static inline void fill_rectangle(SDL_Surface *screen,
511 int x, int y, int w, int h, int color, int update)
518 SDL_FillRect(screen, &rect, color);
519 if (update && w > 0 && h > 0)
520 SDL_UpdateRect(screen, x, y, w, h);
523 /* draw only the border of a rectangle */
524 static void fill_border(int xleft, int ytop, int width, int height, int x, int y, int w, int h, int color, int update)
528 /* fill the background */
532 w2 = width - (x + w);
538 h2 = height - (y + h);
541 fill_rectangle(screen,
545 fill_rectangle(screen,
546 xleft + width - w2, ytop,
549 fill_rectangle(screen,
553 fill_rectangle(screen,
554 xleft + w1, ytop + height - h2,
559 #define ALPHA_BLEND(a, oldp, newp, s)\
560 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
562 #define RGBA_IN(r, g, b, a, s)\
564 unsigned int v = ((const uint32_t *)(s))[0];\
565 a = (v >> 24) & 0xff;\
566 r = (v >> 16) & 0xff;\
567 g = (v >> 8) & 0xff;\
571 #define YUVA_IN(y, u, v, a, s, pal)\
573 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
574 a = (val >> 24) & 0xff;\
575 y = (val >> 16) & 0xff;\
576 u = (val >> 8) & 0xff;\
580 #define YUVA_OUT(d, y, u, v, a)\
582 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
588 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
590 int wrap, wrap3, width2, skip2;
591 int y, u, v, a, u1, v1, a1, w, h;
592 uint8_t *lum, *cb, *cr;
595 int dstx, dsty, dstw, dsth;
597 dstw = av_clip(rect->w, 0, imgw);
598 dsth = av_clip(rect->h, 0, imgh);
599 dstx = av_clip(rect->x, 0, imgw - dstw);
600 dsty = av_clip(rect->y, 0, imgh - dsth);
601 lum = dst->data[0] + dsty * dst->linesize[0];
602 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
603 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
605 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
607 wrap = dst->linesize[0];
608 wrap3 = rect->pict.linesize[0];
609 p = rect->pict.data[0];
610 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
618 YUVA_IN(y, u, v, a, p, pal);
619 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
620 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
621 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
627 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
628 YUVA_IN(y, u, v, a, p, pal);
632 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
634 YUVA_IN(y, u, v, a, p + BPP, pal);
638 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
639 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
640 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
647 YUVA_IN(y, u, v, a, p, pal);
648 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
649 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
650 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
654 p += wrap3 - dstw * BPP;
655 lum += wrap - dstw - dstx;
656 cb += dst->linesize[1] - width2 - skip2;
657 cr += dst->linesize[2] - width2 - skip2;
659 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
665 YUVA_IN(y, u, v, a, p, pal);
669 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
672 YUVA_IN(y, u, v, a, p, pal);
676 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
677 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
678 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
684 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
685 YUVA_IN(y, u, v, a, p, pal);
689 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
691 YUVA_IN(y, u, v, a, p + BPP, pal);
695 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
699 YUVA_IN(y, u, v, a, p, pal);
703 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
705 YUVA_IN(y, u, v, a, p + BPP, pal);
709 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
711 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
712 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
716 p += -wrap3 + 2 * BPP;
720 YUVA_IN(y, u, v, a, p, pal);
724 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
727 YUVA_IN(y, u, v, a, p, pal);
731 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
732 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
733 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
739 p += wrap3 + (wrap3 - dstw * BPP);
740 lum += wrap + (wrap - dstw - dstx);
741 cb += dst->linesize[1] - width2 - skip2;
742 cr += dst->linesize[2] - width2 - skip2;
744 /* handle odd height */
751 YUVA_IN(y, u, v, a, p, pal);
752 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
753 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
754 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
760 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
761 YUVA_IN(y, u, v, a, p, pal);
765 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
767 YUVA_IN(y, u, v, a, p + BPP, pal);
771 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
772 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
773 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
780 YUVA_IN(y, u, v, a, p, pal);
781 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
782 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
783 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
788 static void free_subpicture(SubPicture *sp)
790 avsubtitle_free(&sp->sub);
793 static void calculate_display_rect(SDL_Rect *rect, int scr_xleft, int scr_ytop, int scr_width, int scr_height, VideoPicture *vp)
796 int width, height, x, y;
798 if (vp->sar.num == 0)
801 aspect_ratio = av_q2d(vp->sar);
803 if (aspect_ratio <= 0.0)
805 aspect_ratio *= (float)vp->width / (float)vp->height;
807 /* XXX: we suppose the screen has a 1.0 pixel ratio */
809 width = ((int)rint(height * aspect_ratio)) & ~1;
810 if (width > scr_width) {
812 height = ((int)rint(width / aspect_ratio)) & ~1;
814 x = (scr_width - width) / 2;
815 y = (scr_height - height) / 2;
816 rect->x = scr_xleft + x;
817 rect->y = scr_ytop + y;
818 rect->w = FFMAX(width, 1);
819 rect->h = FFMAX(height, 1);
822 static void video_image_display(VideoState *is)
830 vp = &is->pictq[is->pictq_rindex];
832 if (is->subtitle_st) {
833 if (is->subpq_size > 0) {
834 sp = &is->subpq[is->subpq_rindex];
836 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
837 SDL_LockYUVOverlay (vp->bmp);
839 pict.data[0] = vp->bmp->pixels[0];
840 pict.data[1] = vp->bmp->pixels[2];
841 pict.data[2] = vp->bmp->pixels[1];
843 pict.linesize[0] = vp->bmp->pitches[0];
844 pict.linesize[1] = vp->bmp->pitches[2];
845 pict.linesize[2] = vp->bmp->pitches[1];
847 for (i = 0; i < sp->sub.num_rects; i++)
848 blend_subrect(&pict, sp->sub.rects[i],
849 vp->bmp->w, vp->bmp->h);
851 SDL_UnlockYUVOverlay (vp->bmp);
856 calculate_display_rect(&rect, is->xleft, is->ytop, is->width, is->height, vp);
858 SDL_DisplayYUVOverlay(vp->bmp, &rect);
860 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) {
861 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
862 fill_border(is->xleft, is->ytop, is->width, is->height, rect.x, rect.y, rect.w, rect.h, bgcolor, 1);
863 is->last_display_rect = rect;
868 static inline int compute_mod(int a, int b)
870 return a < 0 ? a%b + b : a%b;
873 static void video_audio_display(VideoState *s)
875 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
876 int ch, channels, h, h2, bgcolor, fgcolor;
878 int rdft_bits, nb_freq;
880 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
882 nb_freq = 1 << (rdft_bits - 1);
884 /* compute display index : center on currently output samples */
885 channels = s->audio_tgt.channels;
886 nb_display_channels = channels;
888 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
890 delay = s->audio_write_buf_size;
893 /* to be more precise, we take into account the time spent since
894 the last buffer computation */
895 if (audio_callback_time) {
896 time_diff = av_gettime() - audio_callback_time;
897 delay -= (time_diff * s->audio_tgt.freq) / 1000000;
900 delay += 2 * data_used;
901 if (delay < data_used)
904 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
905 if (s->show_mode == SHOW_MODE_WAVES) {
907 for (i = 0; i < 1000; i += channels) {
908 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
909 int a = s->sample_array[idx];
910 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
911 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
912 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
914 if (h < score && (b ^ c) < 0) {
921 s->last_i_start = i_start;
923 i_start = s->last_i_start;
926 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
927 if (s->show_mode == SHOW_MODE_WAVES) {
928 fill_rectangle(screen,
929 s->xleft, s->ytop, s->width, s->height,
932 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
934 /* total height for one channel */
935 h = s->height / nb_display_channels;
936 /* graph height / 2 */
938 for (ch = 0; ch < nb_display_channels; ch++) {
940 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
941 for (x = 0; x < s->width; x++) {
942 y = (s->sample_array[i] * h2) >> 15;
949 fill_rectangle(screen,
950 s->xleft + x, ys, 1, y,
953 if (i >= SAMPLE_ARRAY_SIZE)
954 i -= SAMPLE_ARRAY_SIZE;
958 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
960 for (ch = 1; ch < nb_display_channels; ch++) {
961 y = s->ytop + ch * h;
962 fill_rectangle(screen,
963 s->xleft, y, s->width, 1,
966 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
968 nb_display_channels= FFMIN(nb_display_channels, 2);
969 if (rdft_bits != s->rdft_bits) {
970 av_rdft_end(s->rdft);
971 av_free(s->rdft_data);
972 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
973 s->rdft_bits = rdft_bits;
974 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
978 for (ch = 0; ch < nb_display_channels; ch++) {
979 data[ch] = s->rdft_data + 2 * nb_freq * ch;
981 for (x = 0; x < 2 * nb_freq; x++) {
982 double w = (x-nb_freq) * (1.0 / nb_freq);
983 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
985 if (i >= SAMPLE_ARRAY_SIZE)
986 i -= SAMPLE_ARRAY_SIZE;
988 av_rdft_calc(s->rdft, data[ch]);
990 /* Least efficient way to do this, we should of course
991 * directly access it but it is more than fast enough. */
992 for (y = 0; y < s->height; y++) {
993 double w = 1 / sqrt(nb_freq);
994 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]));
995 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
996 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
999 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
1001 fill_rectangle(screen,
1002 s->xpos, s->height-y, 1, 1,
1006 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
1009 if (s->xpos >= s->width)
1014 static void stream_close(VideoState *is)
1018 /* XXX: use a special url_shutdown call to abort parse cleanly */
1019 is->abort_request = 1;
1020 SDL_WaitThread(is->read_tid, NULL);
1021 packet_queue_destroy(&is->videoq);
1022 packet_queue_destroy(&is->audioq);
1023 packet_queue_destroy(&is->subtitleq);
1025 /* free all pictures */
1026 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1029 SDL_FreeYUVOverlay(vp->bmp);
1033 for (i = 0; i < SUBPICTURE_QUEUE_SIZE; i++)
1034 free_subpicture(&is->subpq[i]);
1035 SDL_DestroyMutex(is->pictq_mutex);
1036 SDL_DestroyCond(is->pictq_cond);
1037 SDL_DestroyMutex(is->subpq_mutex);
1038 SDL_DestroyCond(is->subpq_cond);
1039 SDL_DestroyCond(is->continue_read_thread);
1040 #if !CONFIG_AVFILTER
1041 sws_freeContext(is->img_convert_ctx);
1046 static void do_exit(VideoState *is)
1051 av_lockmgr_register(NULL);
1054 av_freep(&vfilters);
1056 avformat_network_deinit();
1060 av_log(NULL, AV_LOG_QUIET, "%s", "");
1064 static void sigterm_handler(int sig)
1069 static int video_open(VideoState *is, int force_set_video_mode, VideoPicture *vp)
1071 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
1075 if (is_full_screen) flags |= SDL_FULLSCREEN;
1076 else flags |= SDL_RESIZABLE;
1078 if (vp && vp->width) {
1079 calculate_display_rect(&rect, 0, 0, INT_MAX, vp->height, vp);
1080 default_width = rect.w;
1081 default_height = rect.h;
1084 if (is_full_screen && fs_screen_width) {
1085 w = fs_screen_width;
1086 h = fs_screen_height;
1087 } else if (!is_full_screen && screen_width) {
1094 w = FFMIN(16383, w);
1095 if (screen && is->width == screen->w && screen->w == w
1096 && is->height== screen->h && screen->h == h && !force_set_video_mode)
1098 screen = SDL_SetVideoMode(w, h, 0, flags);
1100 av_log(NULL, AV_LOG_FATAL, "SDL: could not set video mode - exiting\n");
1104 window_title = input_filename;
1105 SDL_WM_SetCaption(window_title, window_title);
1107 is->width = screen->w;
1108 is->height = screen->h;
1113 /* display the current picture, if any */
1114 static void video_display(VideoState *is)
1117 video_open(is, 0, NULL);
1118 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
1119 video_audio_display(is);
1120 else if (is->video_st)
1121 video_image_display(is);
1124 static double get_clock(Clock *c)
1126 if (*c->queue_serial != c->serial)
1131 double time = av_gettime() / 1000000.0;
1132 return c->pts_drift + time - (time - c->last_updated) * (1.0 - c->speed);
1136 static void set_clock_at(Clock *c, double pts, int serial, double time)
1139 c->last_updated = time;
1140 c->pts_drift = c->pts - time;
1144 static void set_clock(Clock *c, double pts, int serial)
1146 double time = av_gettime() / 1000000.0;
1147 set_clock_at(c, pts, serial, time);
1150 static void set_clock_speed(Clock *c, double speed)
1152 set_clock(c, get_clock(c), c->serial);
1156 static void init_clock(Clock *c, int *queue_serial)
1160 c->queue_serial = queue_serial;
1161 set_clock(c, NAN, -1);
1164 static void sync_clock_to_slave(Clock *c, Clock *slave)
1166 double clock = get_clock(c);
1167 double slave_clock = get_clock(slave);
1168 if (!isnan(slave_clock) && (isnan(clock) || fabs(clock - slave_clock) > AV_NOSYNC_THRESHOLD))
1169 set_clock(c, slave_clock, slave->serial);
1172 static int get_master_sync_type(VideoState *is) {
1173 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1175 return AV_SYNC_VIDEO_MASTER;
1177 return AV_SYNC_AUDIO_MASTER;
1178 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1180 return AV_SYNC_AUDIO_MASTER;
1182 return AV_SYNC_EXTERNAL_CLOCK;
1184 return AV_SYNC_EXTERNAL_CLOCK;
1188 /* get the current master clock value */
1189 static double get_master_clock(VideoState *is)
1193 switch (get_master_sync_type(is)) {
1194 case AV_SYNC_VIDEO_MASTER:
1195 val = get_clock(&is->vidclk);
1197 case AV_SYNC_AUDIO_MASTER:
1198 val = get_clock(&is->audclk);
1201 val = get_clock(&is->extclk);
1207 static void check_external_clock_speed(VideoState *is) {
1208 if (is->video_stream >= 0 && is->videoq.nb_packets <= MIN_FRAMES / 2 ||
1209 is->audio_stream >= 0 && is->audioq.nb_packets <= MIN_FRAMES / 2) {
1210 set_clock_speed(&is->extclk, FFMAX(EXTERNAL_CLOCK_SPEED_MIN, is->extclk.speed - EXTERNAL_CLOCK_SPEED_STEP));
1211 } else if ((is->video_stream < 0 || is->videoq.nb_packets > MIN_FRAMES * 2) &&
1212 (is->audio_stream < 0 || is->audioq.nb_packets > MIN_FRAMES * 2)) {
1213 set_clock_speed(&is->extclk, FFMIN(EXTERNAL_CLOCK_SPEED_MAX, is->extclk.speed + EXTERNAL_CLOCK_SPEED_STEP));
1215 double speed = is->extclk.speed;
1217 set_clock_speed(&is->extclk, speed + EXTERNAL_CLOCK_SPEED_STEP * (1.0 - speed) / fabs(1.0 - speed));
1221 /* seek in the stream */
1222 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1224 if (!is->seek_req) {
1227 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1229 is->seek_flags |= AVSEEK_FLAG_BYTE;
1231 SDL_CondSignal(is->continue_read_thread);
1235 /* pause or resume the video */
1236 static void stream_toggle_pause(VideoState *is)
1239 is->frame_timer += av_gettime() / 1000000.0 + is->vidclk.pts_drift - is->vidclk.pts;
1240 if (is->read_pause_return != AVERROR(ENOSYS)) {
1241 is->vidclk.paused = 0;
1243 set_clock(&is->vidclk, get_clock(&is->vidclk), is->vidclk.serial);
1245 set_clock(&is->extclk, get_clock(&is->extclk), is->extclk.serial);
1246 is->paused = is->audclk.paused = is->vidclk.paused = is->extclk.paused = !is->paused;
1249 static void toggle_pause(VideoState *is)
1251 stream_toggle_pause(is);
1255 static void step_to_next_frame(VideoState *is)
1257 /* if the stream is paused unpause it, then step */
1259 stream_toggle_pause(is);
1263 static double compute_target_delay(double delay, VideoState *is)
1265 double sync_threshold, diff;
1267 /* update delay to follow master synchronisation source */
1268 if (get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER) {
1269 /* if video is slave, we try to correct big delays by
1270 duplicating or deleting a frame */
1271 diff = get_clock(&is->vidclk) - get_master_clock(is);
1273 /* skip or repeat frame. We take into account the
1274 delay to compute the threshold. I still don't know
1275 if it is the best guess */
1276 sync_threshold = FFMAX(AV_SYNC_THRESHOLD_MIN, FFMIN(AV_SYNC_THRESHOLD_MAX, delay));
1277 if (!isnan(diff) && fabs(diff) < is->max_frame_duration) {
1278 if (diff <= -sync_threshold)
1279 delay = FFMAX(0, delay + diff);
1280 else if (diff >= sync_threshold && delay > AV_SYNC_FRAMEDUP_THRESHOLD)
1281 delay = delay + diff;
1282 else if (diff >= sync_threshold)
1287 av_dlog(NULL, "video: delay=%0.3f A-V=%f\n",
1293 static void pictq_next_picture(VideoState *is) {
1294 /* update queue size and signal for next picture */
1295 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1296 is->pictq_rindex = 0;
1298 SDL_LockMutex(is->pictq_mutex);
1300 SDL_CondSignal(is->pictq_cond);
1301 SDL_UnlockMutex(is->pictq_mutex);
1304 static int pictq_prev_picture(VideoState *is) {
1305 VideoPicture *prevvp;
1307 /* update queue size and signal for the previous picture */
1308 prevvp = &is->pictq[(is->pictq_rindex + VIDEO_PICTURE_QUEUE_SIZE - 1) % VIDEO_PICTURE_QUEUE_SIZE];
1309 if (prevvp->allocated && prevvp->serial == is->videoq.serial) {
1310 SDL_LockMutex(is->pictq_mutex);
1311 if (is->pictq_size < VIDEO_PICTURE_QUEUE_SIZE) {
1312 if (--is->pictq_rindex == -1)
1313 is->pictq_rindex = VIDEO_PICTURE_QUEUE_SIZE - 1;
1317 SDL_CondSignal(is->pictq_cond);
1318 SDL_UnlockMutex(is->pictq_mutex);
1323 static void update_video_pts(VideoState *is, double pts, int64_t pos, int serial) {
1324 /* update current video pts */
1325 set_clock(&is->vidclk, pts, serial);
1326 sync_clock_to_slave(&is->extclk, &is->vidclk);
1327 is->video_current_pos = pos;
1328 is->frame_last_pts = pts;
1331 /* called to display each frame */
1332 static void video_refresh(void *opaque, double *remaining_time)
1334 VideoState *is = opaque;
1338 SubPicture *sp, *sp2;
1340 if (!is->paused && get_master_sync_type(is) == AV_SYNC_EXTERNAL_CLOCK && is->realtime)
1341 check_external_clock_speed(is);
1343 if (!display_disable && is->show_mode != SHOW_MODE_VIDEO && is->audio_st) {
1344 time = av_gettime() / 1000000.0;
1345 if (is->force_refresh || is->last_vis_time + rdftspeed < time) {
1347 is->last_vis_time = time;
1349 *remaining_time = FFMIN(*remaining_time, is->last_vis_time + rdftspeed - time);
1354 if (is->force_refresh)
1355 redisplay = pictq_prev_picture(is);
1357 if (is->pictq_size == 0) {
1358 SDL_LockMutex(is->pictq_mutex);
1359 if (is->frame_last_dropped_pts != AV_NOPTS_VALUE && is->frame_last_dropped_pts > is->frame_last_pts) {
1360 update_video_pts(is, is->frame_last_dropped_pts, is->frame_last_dropped_pos, is->frame_last_dropped_serial);
1361 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1363 SDL_UnlockMutex(is->pictq_mutex);
1364 // nothing to do, no picture to display in the queue
1366 double last_duration, duration, delay;
1367 /* dequeue the picture */
1368 vp = &is->pictq[is->pictq_rindex];
1370 if (vp->serial != is->videoq.serial) {
1371 pictq_next_picture(is);
1379 /* compute nominal last_duration */
1380 last_duration = vp->pts - is->frame_last_pts;
1381 if (!isnan(last_duration) && last_duration > 0 && last_duration < is->max_frame_duration) {
1382 /* if duration of the last frame was sane, update last_duration in video state */
1383 is->frame_last_duration = last_duration;
1388 delay = compute_target_delay(is->frame_last_duration, is);
1390 time= av_gettime()/1000000.0;
1391 if (time < is->frame_timer + delay && !redisplay) {
1392 *remaining_time = FFMIN(is->frame_timer + delay - time, *remaining_time);
1396 is->frame_timer += delay;
1397 if (delay > 0 && time - is->frame_timer > AV_SYNC_THRESHOLD_MAX)
1398 is->frame_timer = time;
1400 SDL_LockMutex(is->pictq_mutex);
1401 if (!redisplay && !isnan(vp->pts))
1402 update_video_pts(is, vp->pts, vp->pos, vp->serial);
1403 SDL_UnlockMutex(is->pictq_mutex);
1405 if (is->pictq_size > 1) {
1406 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1407 duration = nextvp->pts - vp->pts;
1408 if(!is->step && (redisplay || framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){
1410 is->frame_drops_late++;
1411 pictq_next_picture(is);
1417 if (is->subtitle_st) {
1418 while (is->subpq_size > 0) {
1419 sp = &is->subpq[is->subpq_rindex];
1421 if (is->subpq_size > 1)
1422 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1426 if (sp->serial != is->subtitleq.serial
1427 || (is->vidclk.pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1428 || (sp2 && is->vidclk.pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1430 free_subpicture(sp);
1432 /* update queue size and signal for next picture */
1433 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1434 is->subpq_rindex = 0;
1436 SDL_LockMutex(is->subpq_mutex);
1438 SDL_CondSignal(is->subpq_cond);
1439 SDL_UnlockMutex(is->subpq_mutex);
1447 /* display picture */
1448 if (!display_disable && is->show_mode == SHOW_MODE_VIDEO)
1451 pictq_next_picture(is);
1453 if (is->step && !is->paused)
1454 stream_toggle_pause(is);
1457 is->force_refresh = 0;
1459 static int64_t last_time;
1461 int aqsize, vqsize, sqsize;
1464 cur_time = av_gettime();
1465 if (!last_time || (cur_time - last_time) >= 30000) {
1470 aqsize = is->audioq.size;
1472 vqsize = is->videoq.size;
1473 if (is->subtitle_st)
1474 sqsize = is->subtitleq.size;
1476 if (is->audio_st && is->video_st)
1477 av_diff = get_clock(&is->audclk) - get_clock(&is->vidclk);
1478 else if (is->video_st)
1479 av_diff = get_master_clock(is) - get_clock(&is->vidclk);
1480 else if (is->audio_st)
1481 av_diff = get_master_clock(is) - get_clock(&is->audclk);
1482 av_log(NULL, AV_LOG_INFO,
1483 "%7.2f %s:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1484 get_master_clock(is),
1485 (is->audio_st && is->video_st) ? "A-V" : (is->video_st ? "M-V" : (is->audio_st ? "M-A" : " ")),
1487 is->frame_drops_early + is->frame_drops_late,
1491 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1492 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1494 last_time = cur_time;
1499 /* allocate a picture (needs to do that in main thread to avoid
1500 potential locking problems */
1501 static void alloc_picture(VideoState *is)
1506 vp = &is->pictq[is->pictq_windex];
1509 SDL_FreeYUVOverlay(vp->bmp);
1511 video_open(is, 0, vp);
1513 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1516 bufferdiff = vp->bmp ? FFMAX(vp->bmp->pixels[0], vp->bmp->pixels[1]) - FFMIN(vp->bmp->pixels[0], vp->bmp->pixels[1]) : 0;
1517 if (!vp->bmp || vp->bmp->pitches[0] < vp->width || bufferdiff < (int64_t)vp->height * vp->bmp->pitches[0]) {
1518 /* SDL allocates a buffer smaller than requested if the video
1519 * overlay hardware is unable to support the requested size. */
1520 av_log(NULL, AV_LOG_FATAL,
1521 "Error: the video system does not support an image\n"
1522 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1523 "to reduce the image size.\n", vp->width, vp->height );
1527 SDL_LockMutex(is->pictq_mutex);
1529 SDL_CondSignal(is->pictq_cond);
1530 SDL_UnlockMutex(is->pictq_mutex);
1533 static void duplicate_right_border_pixels(SDL_Overlay *bmp) {
1534 int i, width, height;
1536 for (i = 0; i < 3; i++) {
1543 if (bmp->pitches[i] > width) {
1544 maxp = bmp->pixels[i] + bmp->pitches[i] * height - 1;
1545 for (p = bmp->pixels[i] + width - 1; p < maxp; p += bmp->pitches[i])
1551 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos, int serial)
1555 #if defined(DEBUG_SYNC) && 0
1556 printf("frame_type=%c pts=%0.3f\n",
1557 av_get_picture_type_char(src_frame->pict_type), pts);
1560 /* wait until we have space to put a new picture */
1561 SDL_LockMutex(is->pictq_mutex);
1563 /* keep the last already displayed picture in the queue */
1564 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE - 1 &&
1565 !is->videoq.abort_request) {
1566 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1568 SDL_UnlockMutex(is->pictq_mutex);
1570 if (is->videoq.abort_request)
1573 vp = &is->pictq[is->pictq_windex];
1575 vp->sar = src_frame->sample_aspect_ratio;
1577 /* alloc or resize hardware picture buffer */
1578 if (!vp->bmp || vp->reallocate || !vp->allocated ||
1579 vp->width != src_frame->width ||
1580 vp->height != src_frame->height) {
1585 vp->width = src_frame->width;
1586 vp->height = src_frame->height;
1588 /* the allocation must be done in the main thread to avoid
1589 locking problems. */
1590 event.type = FF_ALLOC_EVENT;
1591 event.user.data1 = is;
1592 SDL_PushEvent(&event);
1594 /* wait until the picture is allocated */
1595 SDL_LockMutex(is->pictq_mutex);
1596 while (!vp->allocated && !is->videoq.abort_request) {
1597 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1599 /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */
1600 if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) {
1601 while (!vp->allocated) {
1602 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1605 SDL_UnlockMutex(is->pictq_mutex);
1607 if (is->videoq.abort_request)
1611 /* if the frame is not skipped, then display it */
1613 AVPicture pict = { { 0 } };
1615 /* get a pointer on the bitmap */
1616 SDL_LockYUVOverlay (vp->bmp);
1618 pict.data[0] = vp->bmp->pixels[0];
1619 pict.data[1] = vp->bmp->pixels[2];
1620 pict.data[2] = vp->bmp->pixels[1];
1622 pict.linesize[0] = vp->bmp->pitches[0];
1623 pict.linesize[1] = vp->bmp->pitches[2];
1624 pict.linesize[2] = vp->bmp->pitches[1];
1627 // FIXME use direct rendering
1628 av_picture_copy(&pict, (AVPicture *)src_frame,
1629 src_frame->format, vp->width, vp->height);
1631 av_opt_get_int(sws_opts, "sws_flags", 0, &sws_flags);
1632 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1633 vp->width, vp->height, src_frame->format, vp->width, vp->height,
1634 AV_PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1635 if (is->img_convert_ctx == NULL) {
1636 av_log(NULL, AV_LOG_FATAL, "Cannot initialize the conversion context\n");
1639 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1640 0, vp->height, pict.data, pict.linesize);
1642 /* workaround SDL PITCH_WORKAROUND */
1643 duplicate_right_border_pixels(vp->bmp);
1644 /* update the bitmap content */
1645 SDL_UnlockYUVOverlay(vp->bmp);
1649 vp->serial = serial;
1651 /* now we can update the picture count */
1652 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1653 is->pictq_windex = 0;
1654 SDL_LockMutex(is->pictq_mutex);
1656 SDL_UnlockMutex(is->pictq_mutex);
1661 static int get_video_frame(VideoState *is, AVFrame *frame, AVPacket *pkt, int *serial)
1665 if (packet_queue_get(&is->videoq, pkt, 1, serial) < 0)
1668 if (pkt->data == flush_pkt.data) {
1669 avcodec_flush_buffers(is->video_st->codec);
1671 SDL_LockMutex(is->pictq_mutex);
1672 // Make sure there are no long delay timers (ideally we should just flush the queue but that's harder)
1673 while (is->pictq_size && !is->videoq.abort_request) {
1674 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1676 is->video_current_pos = -1;
1677 is->frame_last_pts = AV_NOPTS_VALUE;
1678 is->frame_last_duration = 0;
1679 is->frame_timer = (double)av_gettime() / 1000000.0;
1680 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1681 SDL_UnlockMutex(is->pictq_mutex);
1685 if(avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt) < 0)
1688 if (!got_picture && !pkt->data)
1689 is->video_finished = *serial;
1695 if (decoder_reorder_pts == -1) {
1696 frame->pts = av_frame_get_best_effort_timestamp(frame);
1697 } else if (decoder_reorder_pts) {
1698 frame->pts = frame->pkt_pts;
1700 frame->pts = frame->pkt_dts;
1703 if (frame->pts != AV_NOPTS_VALUE)
1704 dpts = av_q2d(is->video_st->time_base) * frame->pts;
1706 frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame);
1708 if (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) {
1709 SDL_LockMutex(is->pictq_mutex);
1710 if (is->frame_last_pts != AV_NOPTS_VALUE && frame->pts != AV_NOPTS_VALUE) {
1711 double clockdiff = get_clock(&is->vidclk) - get_master_clock(is);
1712 double ptsdiff = dpts - is->frame_last_pts;
1713 if (!isnan(clockdiff) && fabs(clockdiff) < AV_NOSYNC_THRESHOLD &&
1714 !isnan(ptsdiff) && ptsdiff > 0 && ptsdiff < AV_NOSYNC_THRESHOLD &&
1715 clockdiff + ptsdiff - is->frame_last_filter_delay < 0 &&
1716 is->videoq.nb_packets) {
1717 is->frame_last_dropped_pos = pkt->pos;
1718 is->frame_last_dropped_pts = dpts;
1719 is->frame_last_dropped_serial = *serial;
1720 is->frame_drops_early++;
1721 av_frame_unref(frame);
1725 SDL_UnlockMutex(is->pictq_mutex);
1734 static int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph,
1735 AVFilterContext *source_ctx, AVFilterContext *sink_ctx)
1738 AVFilterInOut *outputs = NULL, *inputs = NULL;
1741 outputs = avfilter_inout_alloc();
1742 inputs = avfilter_inout_alloc();
1743 if (!outputs || !inputs) {
1744 ret = AVERROR(ENOMEM);
1748 outputs->name = av_strdup("in");
1749 outputs->filter_ctx = source_ctx;
1750 outputs->pad_idx = 0;
1751 outputs->next = NULL;
1753 inputs->name = av_strdup("out");
1754 inputs->filter_ctx = sink_ctx;
1755 inputs->pad_idx = 0;
1756 inputs->next = NULL;
1758 if ((ret = avfilter_graph_parse_ptr(graph, filtergraph, &inputs, &outputs, NULL)) < 0)
1761 if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0)
1765 ret = avfilter_graph_config(graph, NULL);
1767 avfilter_inout_free(&outputs);
1768 avfilter_inout_free(&inputs);
1772 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters, AVFrame *frame)
1774 static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE };
1775 char sws_flags_str[128];
1776 char buffersrc_args[256];
1778 AVFilterContext *filt_src = NULL, *filt_out = NULL, *filt_crop;
1779 AVCodecContext *codec = is->video_st->codec;
1780 AVRational fr = av_guess_frame_rate(is->ic, is->video_st, NULL);
1782 av_opt_get_int(sws_opts, "sws_flags", 0, &sws_flags);
1783 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%"PRId64, sws_flags);
1784 graph->scale_sws_opts = av_strdup(sws_flags_str);
1786 snprintf(buffersrc_args, sizeof(buffersrc_args),
1787 "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
1788 frame->width, frame->height, frame->format,
1789 is->video_st->time_base.num, is->video_st->time_base.den,
1790 codec->sample_aspect_ratio.num, FFMAX(codec->sample_aspect_ratio.den, 1));
1791 if (fr.num && fr.den)
1792 av_strlcatf(buffersrc_args, sizeof(buffersrc_args), ":frame_rate=%d/%d", fr.num, fr.den);
1794 if ((ret = avfilter_graph_create_filter(&filt_src,
1795 avfilter_get_by_name("buffer"),
1796 "ffplay_buffer", buffersrc_args, NULL,
1800 ret = avfilter_graph_create_filter(&filt_out,
1801 avfilter_get_by_name("buffersink"),
1802 "ffplay_buffersink", NULL, NULL, graph);
1806 if ((ret = av_opt_set_int_list(filt_out, "pix_fmts", pix_fmts, AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0)
1809 /* SDL YUV code is not handling odd width/height for some driver
1810 * combinations, therefore we crop the picture to an even width/height. */
1811 if ((ret = avfilter_graph_create_filter(&filt_crop,
1812 avfilter_get_by_name("crop"),
1813 "ffplay_crop", "floor(in_w/2)*2:floor(in_h/2)*2", NULL, graph)) < 0)
1815 if ((ret = avfilter_link(filt_crop, 0, filt_out, 0)) < 0)
1818 if ((ret = configure_filtergraph(graph, vfilters, filt_src, filt_crop)) < 0)
1821 is->in_video_filter = filt_src;
1822 is->out_video_filter = filt_out;
1828 static int configure_audio_filters(VideoState *is, const char *afilters, int force_output_format)
1830 static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE };
1831 int sample_rates[2] = { 0, -1 };
1832 int64_t channel_layouts[2] = { 0, -1 };
1833 int channels[2] = { 0, -1 };
1834 AVFilterContext *filt_asrc = NULL, *filt_asink = NULL;
1835 char asrc_args[256];
1838 avfilter_graph_free(&is->agraph);
1839 if (!(is->agraph = avfilter_graph_alloc()))
1840 return AVERROR(ENOMEM);
1842 ret = snprintf(asrc_args, sizeof(asrc_args),
1843 "sample_rate=%d:sample_fmt=%s:channels=%d:time_base=%d/%d",
1844 is->audio_filter_src.freq, av_get_sample_fmt_name(is->audio_filter_src.fmt),
1845 is->audio_filter_src.channels,
1846 1, is->audio_filter_src.freq);
1847 if (is->audio_filter_src.channel_layout)
1848 snprintf(asrc_args + ret, sizeof(asrc_args) - ret,
1849 ":channel_layout=0x%"PRIx64, is->audio_filter_src.channel_layout);
1851 ret = avfilter_graph_create_filter(&filt_asrc,
1852 avfilter_get_by_name("abuffer"), "ffplay_abuffer",
1853 asrc_args, NULL, is->agraph);
1858 ret = avfilter_graph_create_filter(&filt_asink,
1859 avfilter_get_by_name("abuffersink"), "ffplay_abuffersink",
1860 NULL, NULL, is->agraph);
1864 if ((ret = av_opt_set_int_list(filt_asink, "sample_fmts", sample_fmts, AV_SAMPLE_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0)
1866 if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 1, AV_OPT_SEARCH_CHILDREN)) < 0)
1869 if (force_output_format) {
1870 channel_layouts[0] = is->audio_tgt.channel_layout;
1871 channels [0] = is->audio_tgt.channels;
1872 sample_rates [0] = is->audio_tgt.freq;
1873 if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 0, AV_OPT_SEARCH_CHILDREN)) < 0)
1875 if ((ret = av_opt_set_int_list(filt_asink, "channel_layouts", channel_layouts, -1, AV_OPT_SEARCH_CHILDREN)) < 0)
1877 if ((ret = av_opt_set_int_list(filt_asink, "channel_counts" , channels , -1, AV_OPT_SEARCH_CHILDREN)) < 0)
1879 if ((ret = av_opt_set_int_list(filt_asink, "sample_rates" , sample_rates , -1, AV_OPT_SEARCH_CHILDREN)) < 0)
1884 if ((ret = configure_filtergraph(is->agraph, afilters, filt_asrc, filt_asink)) < 0)
1887 is->in_audio_filter = filt_asrc;
1888 is->out_audio_filter = filt_asink;
1892 avfilter_graph_free(&is->agraph);
1895 #endif /* CONFIG_AVFILTER */
1897 static int video_thread(void *arg)
1899 AVPacket pkt = { 0 };
1900 VideoState *is = arg;
1901 AVFrame *frame = av_frame_alloc();
1907 AVFilterGraph *graph = avfilter_graph_alloc();
1908 AVFilterContext *filt_out = NULL, *filt_in = NULL;
1911 enum AVPixelFormat last_format = -2;
1912 int last_serial = -1;
1916 while (is->paused && !is->videoq.abort_request)
1919 avcodec_get_frame_defaults(frame);
1920 av_free_packet(&pkt);
1922 ret = get_video_frame(is, frame, &pkt, &serial);
1929 if ( last_w != frame->width
1930 || last_h != frame->height
1931 || last_format != frame->format
1932 || last_serial != serial) {
1933 av_log(NULL, AV_LOG_DEBUG,
1934 "Video frame changed from size:%dx%d format:%s serial:%d to size:%dx%d format:%s serial:%d\n",
1936 (const char *)av_x_if_null(av_get_pix_fmt_name(last_format), "none"), last_serial,
1937 frame->width, frame->height,
1938 (const char *)av_x_if_null(av_get_pix_fmt_name(frame->format), "none"), serial);
1939 avfilter_graph_free(&graph);
1940 graph = avfilter_graph_alloc();
1941 if ((ret = configure_video_filters(graph, is, vfilters, frame)) < 0) {
1943 event.type = FF_QUIT_EVENT;
1944 event.user.data1 = is;
1945 SDL_PushEvent(&event);
1946 av_free_packet(&pkt);
1949 filt_in = is->in_video_filter;
1950 filt_out = is->out_video_filter;
1951 last_w = frame->width;
1952 last_h = frame->height;
1953 last_format = frame->format;
1954 last_serial = serial;
1957 ret = av_buffersrc_add_frame(filt_in, frame);
1960 av_frame_unref(frame);
1961 avcodec_get_frame_defaults(frame);
1962 av_free_packet(&pkt);
1965 is->frame_last_returned_time = av_gettime() / 1000000.0;
1967 ret = av_buffersink_get_frame_flags(filt_out, frame, 0);
1969 if (ret == AVERROR_EOF)
1970 is->video_finished = serial;
1975 is->frame_last_filter_delay = av_gettime() / 1000000.0 - is->frame_last_returned_time;
1976 if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0)
1977 is->frame_last_filter_delay = 0;
1979 pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(filt_out->inputs[0]->time_base);
1980 ret = queue_picture(is, frame, pts, av_frame_get_pkt_pos(frame), serial);
1981 av_frame_unref(frame);
1984 pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(is->video_st->time_base);
1985 ret = queue_picture(is, frame, pts, pkt.pos, serial);
1986 av_frame_unref(frame);
1993 avcodec_flush_buffers(is->video_st->codec);
1995 avfilter_graph_free(&graph);
1997 av_free_packet(&pkt);
1998 av_frame_free(&frame);
2002 static int subtitle_thread(void *arg)
2004 VideoState *is = arg;
2006 AVPacket pkt1, *pkt = &pkt1;
2011 int r, g, b, y, u, v, a;
2014 while (is->paused && !is->subtitleq.abort_request) {
2017 if (packet_queue_get(&is->subtitleq, pkt, 1, &serial) < 0)
2020 if (pkt->data == flush_pkt.data) {
2021 avcodec_flush_buffers(is->subtitle_st->codec);
2024 SDL_LockMutex(is->subpq_mutex);
2025 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
2026 !is->subtitleq.abort_request) {
2027 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
2029 SDL_UnlockMutex(is->subpq_mutex);
2031 if (is->subtitleq.abort_request)
2034 sp = &is->subpq[is->subpq_windex];
2036 /* NOTE: ipts is the PTS of the _first_ picture beginning in
2037 this packet, if any */
2039 if (pkt->pts != AV_NOPTS_VALUE)
2040 pts = av_q2d(is->subtitle_st->time_base) * pkt->pts;
2042 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
2043 &got_subtitle, pkt);
2044 if (got_subtitle && sp->sub.format == 0) {
2045 if (sp->sub.pts != AV_NOPTS_VALUE)
2046 pts = sp->sub.pts / (double)AV_TIME_BASE;
2048 sp->serial = serial;
2050 for (i = 0; i < sp->sub.num_rects; i++)
2052 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
2054 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
2055 y = RGB_TO_Y_CCIR(r, g, b);
2056 u = RGB_TO_U_CCIR(r, g, b, 0);
2057 v = RGB_TO_V_CCIR(r, g, b, 0);
2058 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
2062 /* now we can update the picture count */
2063 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
2064 is->subpq_windex = 0;
2065 SDL_LockMutex(is->subpq_mutex);
2067 SDL_UnlockMutex(is->subpq_mutex);
2068 } else if (got_subtitle) {
2069 avsubtitle_free(&sp->sub);
2071 av_free_packet(pkt);
2076 /* copy samples for viewing in editor window */
2077 static void update_sample_display(VideoState *is, short *samples, int samples_size)
2081 size = samples_size / sizeof(short);
2083 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
2086 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
2088 is->sample_array_index += len;
2089 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
2090 is->sample_array_index = 0;
2095 /* return the wanted number of samples to get better sync if sync_type is video
2096 * or external master clock */
2097 static int synchronize_audio(VideoState *is, int nb_samples)
2099 int wanted_nb_samples = nb_samples;
2101 /* if not master, then we try to remove or add samples to correct the clock */
2102 if (get_master_sync_type(is) != AV_SYNC_AUDIO_MASTER) {
2103 double diff, avg_diff;
2104 int min_nb_samples, max_nb_samples;
2106 diff = get_clock(&is->audclk) - get_master_clock(is);
2108 if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD) {
2109 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2110 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2111 /* not enough measures to have a correct estimate */
2112 is->audio_diff_avg_count++;
2114 /* estimate the A-V difference */
2115 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2117 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2118 wanted_nb_samples = nb_samples + (int)(diff * is->audio_src.freq);
2119 min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100));
2120 max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100));
2121 wanted_nb_samples = FFMIN(FFMAX(wanted_nb_samples, min_nb_samples), max_nb_samples);
2123 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f %f\n",
2124 diff, avg_diff, wanted_nb_samples - nb_samples,
2125 is->audio_clock, is->audio_diff_threshold);
2128 /* too big difference : may be initial PTS errors, so
2130 is->audio_diff_avg_count = 0;
2131 is->audio_diff_cum = 0;
2135 return wanted_nb_samples;
2139 * Decode one audio frame and return its uncompressed size.
2141 * The processed audio frame is decoded, converted if required, and
2142 * stored in is->audio_buf, with size in bytes given by the return
2145 static int audio_decode_frame(VideoState *is)
2147 AVPacket *pkt_temp = &is->audio_pkt_temp;
2148 AVPacket *pkt = &is->audio_pkt;
2149 AVCodecContext *dec = is->audio_st->codec;
2150 int len1, data_size, resampled_data_size;
2151 int64_t dec_channel_layout;
2153 av_unused double audio_clock0;
2154 int wanted_nb_samples;
2160 /* NOTE: the audio packet can contain several frames */
2161 while (pkt_temp->stream_index != -1 || is->audio_buf_frames_pending) {
2163 if (!(is->frame = avcodec_alloc_frame()))
2164 return AVERROR(ENOMEM);
2166 av_frame_unref(is->frame);
2167 avcodec_get_frame_defaults(is->frame);
2170 if (is->audioq.serial != is->audio_pkt_temp_serial)
2176 if (!is->audio_buf_frames_pending) {
2177 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
2179 /* if error, we skip the frame */
2185 pkt_temp->pts = AV_NOPTS_VALUE;
2186 pkt_temp->data += len1;
2187 pkt_temp->size -= len1;
2188 if (pkt_temp->data && pkt_temp->size <= 0 || !pkt_temp->data && !got_frame)
2189 pkt_temp->stream_index = -1;
2190 if (!pkt_temp->data && !got_frame)
2191 is->audio_finished = is->audio_pkt_temp_serial;
2196 tb = (AVRational){1, is->frame->sample_rate};
2197 if (is->frame->pts != AV_NOPTS_VALUE)
2198 is->frame->pts = av_rescale_q(is->frame->pts, dec->time_base, tb);
2199 else if (is->frame->pkt_pts != AV_NOPTS_VALUE)
2200 is->frame->pts = av_rescale_q(is->frame->pkt_pts, is->audio_st->time_base, tb);
2201 else if (is->audio_frame_next_pts != AV_NOPTS_VALUE)
2203 is->frame->pts = av_rescale_q(is->audio_frame_next_pts, (AVRational){1, is->audio_filter_src.freq}, tb);
2205 is->frame->pts = av_rescale_q(is->audio_frame_next_pts, (AVRational){1, is->audio_src.freq}, tb);
2208 if (is->frame->pts != AV_NOPTS_VALUE)
2209 is->audio_frame_next_pts = is->frame->pts + is->frame->nb_samples;
2212 dec_channel_layout = get_valid_channel_layout(is->frame->channel_layout, av_frame_get_channels(is->frame));
2215 cmp_audio_fmts(is->audio_filter_src.fmt, is->audio_filter_src.channels,
2216 is->frame->format, av_frame_get_channels(is->frame)) ||
2217 is->audio_filter_src.channel_layout != dec_channel_layout ||
2218 is->audio_filter_src.freq != is->frame->sample_rate ||
2219 is->audio_pkt_temp_serial != is->audio_last_serial;
2222 char buf1[1024], buf2[1024];
2223 av_get_channel_layout_string(buf1, sizeof(buf1), -1, is->audio_filter_src.channel_layout);
2224 av_get_channel_layout_string(buf2, sizeof(buf2), -1, dec_channel_layout);
2225 av_log(NULL, AV_LOG_DEBUG,
2226 "Audio frame changed from rate:%d ch:%d fmt:%s layout:%s serial:%d to rate:%d ch:%d fmt:%s layout:%s serial:%d\n",
2227 is->audio_filter_src.freq, is->audio_filter_src.channels, av_get_sample_fmt_name(is->audio_filter_src.fmt), buf1, is->audio_last_serial,
2228 is->frame->sample_rate, av_frame_get_channels(is->frame), av_get_sample_fmt_name(is->frame->format), buf2, is->audio_pkt_temp_serial);
2230 is->audio_filter_src.fmt = is->frame->format;
2231 is->audio_filter_src.channels = av_frame_get_channels(is->frame);
2232 is->audio_filter_src.channel_layout = dec_channel_layout;
2233 is->audio_filter_src.freq = is->frame->sample_rate;
2234 is->audio_last_serial = is->audio_pkt_temp_serial;
2236 if ((ret = configure_audio_filters(is, afilters, 1)) < 0)
2240 if ((ret = av_buffersrc_add_frame(is->in_audio_filter, is->frame)) < 0)
2242 av_frame_unref(is->frame);
2246 if ((ret = av_buffersink_get_frame_flags(is->out_audio_filter, is->frame, 0)) < 0) {
2247 if (ret == AVERROR(EAGAIN)) {
2248 is->audio_buf_frames_pending = 0;
2251 if (ret == AVERROR_EOF)
2252 is->audio_finished = is->audio_pkt_temp_serial;
2255 is->audio_buf_frames_pending = 1;
2256 tb = is->out_audio_filter->inputs[0]->time_base;
2259 data_size = av_samples_get_buffer_size(NULL, av_frame_get_channels(is->frame),
2260 is->frame->nb_samples,
2261 is->frame->format, 1);
2263 dec_channel_layout =
2264 (is->frame->channel_layout && av_frame_get_channels(is->frame) == av_get_channel_layout_nb_channels(is->frame->channel_layout)) ?
2265 is->frame->channel_layout : av_get_default_channel_layout(av_frame_get_channels(is->frame));
2266 wanted_nb_samples = synchronize_audio(is, is->frame->nb_samples);
2268 if (is->frame->format != is->audio_src.fmt ||
2269 dec_channel_layout != is->audio_src.channel_layout ||
2270 is->frame->sample_rate != is->audio_src.freq ||
2271 (wanted_nb_samples != is->frame->nb_samples && !is->swr_ctx)) {
2272 swr_free(&is->swr_ctx);
2273 is->swr_ctx = swr_alloc_set_opts(NULL,
2274 is->audio_tgt.channel_layout, is->audio_tgt.fmt, is->audio_tgt.freq,
2275 dec_channel_layout, is->frame->format, is->frame->sample_rate,
2277 if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
2278 av_log(NULL, AV_LOG_ERROR,
2279 "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
2280 is->frame->sample_rate, av_get_sample_fmt_name(is->frame->format), av_frame_get_channels(is->frame),
2281 is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels);
2284 is->audio_src.channel_layout = dec_channel_layout;
2285 is->audio_src.channels = av_frame_get_channels(is->frame);
2286 is->audio_src.freq = is->frame->sample_rate;
2287 is->audio_src.fmt = is->frame->format;
2291 const uint8_t **in = (const uint8_t **)is->frame->extended_data;
2292 uint8_t **out = &is->audio_buf1;
2293 int out_count = (int64_t)wanted_nb_samples * is->audio_tgt.freq / is->frame->sample_rate + 256;
2294 int out_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, out_count, is->audio_tgt.fmt, 0);
2297 av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size() failed\n");
2300 if (wanted_nb_samples != is->frame->nb_samples) {
2301 if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - is->frame->nb_samples) * is->audio_tgt.freq / is->frame->sample_rate,
2302 wanted_nb_samples * is->audio_tgt.freq / is->frame->sample_rate) < 0) {
2303 av_log(NULL, AV_LOG_ERROR, "swr_set_compensation() failed\n");
2307 av_fast_malloc(&is->audio_buf1, &is->audio_buf1_size, out_size);
2308 if (!is->audio_buf1)
2309 return AVERROR(ENOMEM);
2310 len2 = swr_convert(is->swr_ctx, out, out_count, in, is->frame->nb_samples);
2312 av_log(NULL, AV_LOG_ERROR, "swr_convert() failed\n");
2315 if (len2 == out_count) {
2316 av_log(NULL, AV_LOG_WARNING, "audio buffer is probably too small\n");
2317 swr_init(is->swr_ctx);
2319 is->audio_buf = is->audio_buf1;
2320 resampled_data_size = len2 * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
2322 is->audio_buf = is->frame->data[0];
2323 resampled_data_size = data_size;
2326 audio_clock0 = is->audio_clock;
2327 /* update the audio clock with the pts */
2328 if (is->frame->pts != AV_NOPTS_VALUE)
2329 is->audio_clock = is->frame->pts * av_q2d(tb) + (double) is->frame->nb_samples / is->frame->sample_rate;
2331 is->audio_clock = NAN;
2332 is->audio_clock_serial = is->audio_pkt_temp_serial;
2335 static double last_clock;
2336 printf("audio: delay=%0.3f clock=%0.3f clock0=%0.3f\n",
2337 is->audio_clock - last_clock,
2338 is->audio_clock, audio_clock0);
2339 last_clock = is->audio_clock;
2342 return resampled_data_size;
2345 /* free the current packet */
2347 av_free_packet(pkt);
2348 memset(pkt_temp, 0, sizeof(*pkt_temp));
2349 pkt_temp->stream_index = -1;
2351 if (is->audioq.abort_request) {
2355 if (is->audioq.nb_packets == 0)
2356 SDL_CondSignal(is->continue_read_thread);
2358 /* read next packet */
2359 if ((packet_queue_get(&is->audioq, pkt, 1, &is->audio_pkt_temp_serial)) < 0)
2362 if (pkt->data == flush_pkt.data) {
2363 avcodec_flush_buffers(dec);
2364 is->audio_buf_frames_pending = 0;
2365 is->audio_frame_next_pts = AV_NOPTS_VALUE;
2366 if ((is->ic->iformat->flags & (AVFMT_NOBINSEARCH | AVFMT_NOGENSEARCH | AVFMT_NO_BYTE_SEEK)) && !is->ic->iformat->read_seek)
2367 is->audio_frame_next_pts = is->audio_st->start_time;
2374 /* prepare a new audio buffer */
2375 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2377 VideoState *is = opaque;
2378 int audio_size, len1;
2380 int frame_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, 1, is->audio_tgt.fmt, 1);
2382 audio_callback_time = av_gettime();
2385 if (is->audio_buf_index >= is->audio_buf_size) {
2386 audio_size = audio_decode_frame(is);
2387 if (audio_size < 0) {
2388 /* if error, just output silence */
2389 is->audio_buf = is->silence_buf;
2390 is->audio_buf_size = sizeof(is->silence_buf) / frame_size * frame_size;
2392 if (is->show_mode != SHOW_MODE_VIDEO)
2393 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2394 is->audio_buf_size = audio_size;
2396 is->audio_buf_index = 0;
2398 len1 = is->audio_buf_size - is->audio_buf_index;
2401 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2404 is->audio_buf_index += len1;
2406 bytes_per_sec = is->audio_tgt.freq * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
2407 is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
2408 /* Let's assume the audio driver that is used by SDL has two periods. */
2409 if (!isnan(is->audio_clock)) {
2410 set_clock_at(&is->audclk, is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec, is->audio_clock_serial, audio_callback_time / 1000000.0);
2411 sync_clock_to_slave(&is->extclk, &is->audclk);
2415 static int audio_open(void *opaque, int64_t wanted_channel_layout, int wanted_nb_channels, int wanted_sample_rate, struct AudioParams *audio_hw_params)
2417 SDL_AudioSpec wanted_spec, spec;
2419 static const int next_nb_channels[] = {0, 0, 1, 6, 2, 6, 4, 6};
2421 env = SDL_getenv("SDL_AUDIO_CHANNELS");
2423 wanted_nb_channels = atoi(env);
2424 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2426 if (!wanted_channel_layout || wanted_nb_channels != av_get_channel_layout_nb_channels(wanted_channel_layout)) {
2427 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2428 wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX;
2430 wanted_spec.channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
2431 wanted_spec.freq = wanted_sample_rate;
2432 if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) {
2433 av_log(NULL, AV_LOG_ERROR, "Invalid sample rate or channel count!\n");
2436 wanted_spec.format = AUDIO_S16SYS;
2437 wanted_spec.silence = 0;
2438 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2439 wanted_spec.callback = sdl_audio_callback;
2440 wanted_spec.userdata = opaque;
2441 while (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2442 av_log(NULL, AV_LOG_WARNING, "SDL_OpenAudio (%d channels): %s\n", wanted_spec.channels, SDL_GetError());
2443 wanted_spec.channels = next_nb_channels[FFMIN(7, wanted_spec.channels)];
2444 if (!wanted_spec.channels) {
2445 av_log(NULL, AV_LOG_ERROR,
2446 "No more channel combinations to try, audio open failed\n");
2449 wanted_channel_layout = av_get_default_channel_layout(wanted_spec.channels);
2451 if (spec.format != AUDIO_S16SYS) {
2452 av_log(NULL, AV_LOG_ERROR,
2453 "SDL advised audio format %d is not supported!\n", spec.format);
2456 if (spec.channels != wanted_spec.channels) {
2457 wanted_channel_layout = av_get_default_channel_layout(spec.channels);
2458 if (!wanted_channel_layout) {
2459 av_log(NULL, AV_LOG_ERROR,
2460 "SDL advised channel count %d is not supported!\n", spec.channels);
2465 audio_hw_params->fmt = AV_SAMPLE_FMT_S16;
2466 audio_hw_params->freq = spec.freq;
2467 audio_hw_params->channel_layout = wanted_channel_layout;
2468 audio_hw_params->channels = spec.channels;
2472 /* open a given stream. Return 0 if OK */
2473 static int stream_component_open(VideoState *is, int stream_index)
2475 AVFormatContext *ic = is->ic;
2476 AVCodecContext *avctx;
2478 const char *forced_codec_name = NULL;
2480 AVDictionaryEntry *t = NULL;
2481 int sample_rate, nb_channels;
2482 int64_t channel_layout;
2484 int stream_lowres = lowres;
2486 if (stream_index < 0 || stream_index >= ic->nb_streams)
2488 avctx = ic->streams[stream_index]->codec;
2490 codec = avcodec_find_decoder(avctx->codec_id);
2492 switch(avctx->codec_type){
2493 case AVMEDIA_TYPE_AUDIO : is->last_audio_stream = stream_index; forced_codec_name = audio_codec_name; break;
2494 case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; forced_codec_name = subtitle_codec_name; break;
2495 case AVMEDIA_TYPE_VIDEO : is->last_video_stream = stream_index; forced_codec_name = video_codec_name; break;
2497 if (forced_codec_name)
2498 codec = avcodec_find_decoder_by_name(forced_codec_name);
2500 if (forced_codec_name) av_log(NULL, AV_LOG_WARNING,
2501 "No codec could be found with name '%s'\n", forced_codec_name);
2502 else av_log(NULL, AV_LOG_WARNING,
2503 "No codec could be found with id %d\n", avctx->codec_id);
2507 avctx->codec_id = codec->id;
2508 avctx->workaround_bugs = workaround_bugs;
2509 if(stream_lowres > av_codec_get_max_lowres(codec)){
2510 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
2511 av_codec_get_max_lowres(codec));
2512 stream_lowres = av_codec_get_max_lowres(codec);
2514 av_codec_set_lowres(avctx, stream_lowres);
2515 avctx->error_concealment = error_concealment;
2517 if(stream_lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2518 if (fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2519 if(codec->capabilities & CODEC_CAP_DR1)
2520 avctx->flags |= CODEC_FLAG_EMU_EDGE;
2522 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec);
2523 if (!av_dict_get(opts, "threads", NULL, 0))
2524 av_dict_set(&opts, "threads", "auto", 0);
2526 av_dict_set(&opts, "lowres", av_asprintf("%d", stream_lowres), AV_DICT_DONT_STRDUP_VAL);
2527 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
2528 av_dict_set(&opts, "refcounted_frames", "1", 0);
2529 if (avcodec_open2(avctx, codec, &opts) < 0)
2531 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2532 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2533 return AVERROR_OPTION_NOT_FOUND;
2536 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2537 switch (avctx->codec_type) {
2538 case AVMEDIA_TYPE_AUDIO:
2543 is->audio_filter_src.freq = avctx->sample_rate;
2544 is->audio_filter_src.channels = avctx->channels;
2545 is->audio_filter_src.channel_layout = get_valid_channel_layout(avctx->channel_layout, avctx->channels);
2546 is->audio_filter_src.fmt = avctx->sample_fmt;
2547 if ((ret = configure_audio_filters(is, afilters, 0)) < 0)
2549 link = is->out_audio_filter->inputs[0];
2550 sample_rate = link->sample_rate;
2551 nb_channels = link->channels;
2552 channel_layout = link->channel_layout;
2555 sample_rate = avctx->sample_rate;
2556 nb_channels = avctx->channels;
2557 channel_layout = avctx->channel_layout;
2560 /* prepare audio output */
2561 if ((ret = audio_open(is, channel_layout, nb_channels, sample_rate, &is->audio_tgt)) < 0)
2563 is->audio_hw_buf_size = ret;
2564 is->audio_src = is->audio_tgt;
2565 is->audio_buf_size = 0;
2566 is->audio_buf_index = 0;
2568 /* init averaging filter */
2569 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2570 is->audio_diff_avg_count = 0;
2571 /* since we do not have a precise anough audio fifo fullness,
2572 we correct audio sync only if larger than this threshold */
2573 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);
2575 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2576 memset(&is->audio_pkt_temp, 0, sizeof(is->audio_pkt_temp));
2577 is->audio_pkt_temp.stream_index = -1;
2579 is->audio_stream = stream_index;
2580 is->audio_st = ic->streams[stream_index];
2582 packet_queue_start(&is->audioq);
2585 case AVMEDIA_TYPE_VIDEO:
2586 is->video_stream = stream_index;
2587 is->video_st = ic->streams[stream_index];
2589 packet_queue_start(&is->videoq);
2590 is->video_tid = SDL_CreateThread(video_thread, is);
2591 is->queue_attachments_req = 1;
2593 case AVMEDIA_TYPE_SUBTITLE:
2594 is->subtitle_stream = stream_index;
2595 is->subtitle_st = ic->streams[stream_index];
2596 packet_queue_start(&is->subtitleq);
2598 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2606 static void stream_component_close(VideoState *is, int stream_index)
2608 AVFormatContext *ic = is->ic;
2609 AVCodecContext *avctx;
2611 if (stream_index < 0 || stream_index >= ic->nb_streams)
2613 avctx = ic->streams[stream_index]->codec;
2615 switch (avctx->codec_type) {
2616 case AVMEDIA_TYPE_AUDIO:
2617 packet_queue_abort(&is->audioq);
2621 packet_queue_flush(&is->audioq);
2622 av_free_packet(&is->audio_pkt);
2623 swr_free(&is->swr_ctx);
2624 av_freep(&is->audio_buf1);
2625 is->audio_buf1_size = 0;
2626 is->audio_buf = NULL;
2627 av_frame_free(&is->frame);
2630 av_rdft_end(is->rdft);
2631 av_freep(&is->rdft_data);
2636 avfilter_graph_free(&is->agraph);
2639 case AVMEDIA_TYPE_VIDEO:
2640 packet_queue_abort(&is->videoq);
2642 /* note: we also signal this mutex to make sure we deblock the
2643 video thread in all cases */
2644 SDL_LockMutex(is->pictq_mutex);
2645 SDL_CondSignal(is->pictq_cond);
2646 SDL_UnlockMutex(is->pictq_mutex);
2648 SDL_WaitThread(is->video_tid, NULL);
2650 packet_queue_flush(&is->videoq);
2652 case AVMEDIA_TYPE_SUBTITLE:
2653 packet_queue_abort(&is->subtitleq);
2655 /* note: we also signal this mutex to make sure we deblock the
2656 video thread in all cases */
2657 SDL_LockMutex(is->subpq_mutex);
2658 SDL_CondSignal(is->subpq_cond);
2659 SDL_UnlockMutex(is->subpq_mutex);
2661 SDL_WaitThread(is->subtitle_tid, NULL);
2663 packet_queue_flush(&is->subtitleq);
2669 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2670 avcodec_close(avctx);
2671 switch (avctx->codec_type) {
2672 case AVMEDIA_TYPE_AUDIO:
2673 is->audio_st = NULL;
2674 is->audio_stream = -1;
2676 case AVMEDIA_TYPE_VIDEO:
2677 is->video_st = NULL;
2678 is->video_stream = -1;
2680 case AVMEDIA_TYPE_SUBTITLE:
2681 is->subtitle_st = NULL;
2682 is->subtitle_stream = -1;
2689 static int decode_interrupt_cb(void *ctx)
2691 VideoState *is = ctx;
2692 return is->abort_request;
2695 static int is_realtime(AVFormatContext *s)
2697 if( !strcmp(s->iformat->name, "rtp")
2698 || !strcmp(s->iformat->name, "rtsp")
2699 || !strcmp(s->iformat->name, "sdp")
2703 if(s->pb && ( !strncmp(s->filename, "rtp:", 4)
2704 || !strncmp(s->filename, "udp:", 4)
2711 /* this thread gets the stream from the disk or the network */
2712 static int read_thread(void *arg)
2714 VideoState *is = arg;
2715 AVFormatContext *ic = NULL;
2717 int st_index[AVMEDIA_TYPE_NB];
2718 AVPacket pkt1, *pkt = &pkt1;
2720 int64_t stream_start_time;
2721 int pkt_in_play_range = 0;
2722 AVDictionaryEntry *t;
2723 AVDictionary **opts;
2724 int orig_nb_streams;
2725 SDL_mutex *wait_mutex = SDL_CreateMutex();
2727 memset(st_index, -1, sizeof(st_index));
2728 is->last_video_stream = is->video_stream = -1;
2729 is->last_audio_stream = is->audio_stream = -1;
2730 is->last_subtitle_stream = is->subtitle_stream = -1;
2732 ic = avformat_alloc_context();
2733 ic->interrupt_callback.callback = decode_interrupt_cb;
2734 ic->interrupt_callback.opaque = is;
2735 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2737 print_error(is->filename, err);
2741 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2742 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2743 ret = AVERROR_OPTION_NOT_FOUND;
2749 ic->flags |= AVFMT_FLAG_GENPTS;
2751 opts = setup_find_stream_info_opts(ic, codec_opts);
2752 orig_nb_streams = ic->nb_streams;
2754 err = avformat_find_stream_info(ic, opts);
2756 av_log(NULL, AV_LOG_WARNING,
2757 "%s: could not find codec parameters\n", is->filename);
2761 for (i = 0; i < orig_nb_streams; i++)
2762 av_dict_free(&opts[i]);
2766 ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
2768 if (seek_by_bytes < 0)
2769 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT) && strcmp("ogg", ic->iformat->name);
2771 is->max_frame_duration = (ic->iformat->flags & AVFMT_TS_DISCONT) ? 10.0 : 3600.0;
2773 if (!window_title && (t = av_dict_get(ic->metadata, "title", NULL, 0)))
2774 window_title = av_asprintf("%s - %s", t->value, input_filename);
2776 /* if seeking requested, we execute it */
2777 if (start_time != AV_NOPTS_VALUE) {
2780 timestamp = start_time;
2781 /* add the stream start time */
2782 if (ic->start_time != AV_NOPTS_VALUE)
2783 timestamp += ic->start_time;
2784 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2786 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
2787 is->filename, (double)timestamp / AV_TIME_BASE);
2791 is->realtime = is_realtime(ic);
2793 for (i = 0; i < ic->nb_streams; i++)
2794 ic->streams[i]->discard = AVDISCARD_ALL;
2796 st_index[AVMEDIA_TYPE_VIDEO] =
2797 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2798 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2800 st_index[AVMEDIA_TYPE_AUDIO] =
2801 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2802 wanted_stream[AVMEDIA_TYPE_AUDIO],
2803 st_index[AVMEDIA_TYPE_VIDEO],
2805 if (!video_disable && !subtitle_disable)
2806 st_index[AVMEDIA_TYPE_SUBTITLE] =
2807 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2808 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2809 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2810 st_index[AVMEDIA_TYPE_AUDIO] :
2811 st_index[AVMEDIA_TYPE_VIDEO]),
2814 av_dump_format(ic, 0, is->filename, 0);
2817 is->show_mode = show_mode;
2819 /* open the streams */
2820 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2821 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2825 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2826 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2828 if (is->show_mode == SHOW_MODE_NONE)
2829 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2831 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2832 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2835 if (is->video_stream < 0 && is->audio_stream < 0) {
2836 av_log(NULL, AV_LOG_FATAL, "Failed to open file '%s' or configure filtergraph\n",
2842 if (infinite_buffer < 0 && is->realtime)
2843 infinite_buffer = 1;
2846 if (is->abort_request)
2848 if (is->paused != is->last_paused) {
2849 is->last_paused = is->paused;
2851 is->read_pause_return = av_read_pause(ic);
2855 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
2857 (!strcmp(ic->iformat->name, "rtsp") ||
2858 (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) {
2859 /* wait 10 ms to avoid trying to get another packet */
2866 int64_t seek_target = is->seek_pos;
2867 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2868 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2869 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2870 // of the seek_pos/seek_rel variables
2872 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2874 av_log(NULL, AV_LOG_ERROR,
2875 "%s: error while seeking\n", is->ic->filename);
2877 if (is->audio_stream >= 0) {
2878 packet_queue_flush(&is->audioq);
2879 packet_queue_put(&is->audioq, &flush_pkt);
2881 if (is->subtitle_stream >= 0) {
2882 packet_queue_flush(&is->subtitleq);
2883 packet_queue_put(&is->subtitleq, &flush_pkt);
2885 if (is->video_stream >= 0) {
2886 packet_queue_flush(&is->videoq);
2887 packet_queue_put(&is->videoq, &flush_pkt);
2889 if (is->seek_flags & AVSEEK_FLAG_BYTE) {
2890 set_clock(&is->extclk, NAN, 0);
2892 set_clock(&is->extclk, seek_target / (double)AV_TIME_BASE, 0);
2896 is->queue_attachments_req = 1;
2899 step_to_next_frame(is);
2901 if (is->queue_attachments_req) {
2902 if (is->video_st && is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC) {
2904 if ((ret = av_copy_packet(©, &is->video_st->attached_pic)) < 0)
2906 packet_queue_put(&is->videoq, ©);
2907 packet_queue_put_nullpacket(&is->videoq, is->video_stream);
2909 is->queue_attachments_req = 0;
2912 /* if the queue are full, no need to read more */
2913 if (infinite_buffer<1 &&
2914 (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2915 || ( (is->audioq .nb_packets > MIN_FRAMES || is->audio_stream < 0 || is->audioq.abort_request)
2916 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0 || is->videoq.abort_request
2917 || (is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC))
2918 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0 || is->subtitleq.abort_request)))) {
2920 SDL_LockMutex(wait_mutex);
2921 SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
2922 SDL_UnlockMutex(wait_mutex);
2926 (!is->audio_st || is->audio_finished == is->audioq.serial) &&
2927 (!is->video_st || (is->video_finished == is->videoq.serial && is->pictq_size == 0))) {
2928 if (loop != 1 && (!loop || --loop)) {
2929 stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2930 } else if (autoexit) {
2936 if (is->video_stream >= 0)
2937 packet_queue_put_nullpacket(&is->videoq, is->video_stream);
2938 if (is->audio_stream >= 0)
2939 packet_queue_put_nullpacket(&is->audioq, is->audio_stream);
2944 ret = av_read_frame(ic, pkt);
2946 if (ret == AVERROR_EOF || url_feof(ic->pb))
2948 if (ic->pb && ic->pb->error)
2950 SDL_LockMutex(wait_mutex);
2951 SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
2952 SDL_UnlockMutex(wait_mutex);
2955 /* check if packet is in play range specified by user, then queue, otherwise discard */
2956 stream_start_time = ic->streams[pkt->stream_index]->start_time;
2957 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2958 (pkt->pts - (stream_start_time != AV_NOPTS_VALUE ? stream_start_time : 0)) *
2959 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2960 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2961 <= ((double)duration / 1000000);
2962 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2963 packet_queue_put(&is->audioq, pkt);
2964 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range
2965 && !(is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC)) {
2966 packet_queue_put(&is->videoq, pkt);
2967 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2968 packet_queue_put(&is->subtitleq, pkt);
2970 av_free_packet(pkt);
2973 /* wait until the end */
2974 while (!is->abort_request) {
2980 /* close each stream */
2981 if (is->audio_stream >= 0)
2982 stream_component_close(is, is->audio_stream);
2983 if (is->video_stream >= 0)
2984 stream_component_close(is, is->video_stream);
2985 if (is->subtitle_stream >= 0)
2986 stream_component_close(is, is->subtitle_stream);
2988 avformat_close_input(&is->ic);
2994 event.type = FF_QUIT_EVENT;
2995 event.user.data1 = is;
2996 SDL_PushEvent(&event);
2998 SDL_DestroyMutex(wait_mutex);
3002 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
3006 is = av_mallocz(sizeof(VideoState));
3009 av_strlcpy(is->filename, filename, sizeof(is->filename));
3010 is->iformat = iformat;
3014 /* start video display */
3015 is->pictq_mutex = SDL_CreateMutex();
3016 is->pictq_cond = SDL_CreateCond();
3018 is->subpq_mutex = SDL_CreateMutex();
3019 is->subpq_cond = SDL_CreateCond();
3021 packet_queue_init(&is->videoq);
3022 packet_queue_init(&is->audioq);
3023 packet_queue_init(&is->subtitleq);
3025 is->continue_read_thread = SDL_CreateCond();
3027 init_clock(&is->vidclk, &is->videoq.serial);
3028 init_clock(&is->audclk, &is->audioq.serial);
3029 init_clock(&is->extclk, &is->extclk.serial);
3030 is->audio_clock_serial = -1;
3031 is->audio_last_serial = -1;
3032 is->av_sync_type = av_sync_type;
3033 is->read_tid = SDL_CreateThread(read_thread, is);
3034 if (!is->read_tid) {
3041 static void stream_cycle_channel(VideoState *is, int codec_type)
3043 AVFormatContext *ic = is->ic;
3044 int start_index, stream_index;
3047 AVProgram *p = NULL;
3048 int nb_streams = is->ic->nb_streams;
3050 if (codec_type == AVMEDIA_TYPE_VIDEO) {
3051 start_index = is->last_video_stream;
3052 old_index = is->video_stream;
3053 } else if (codec_type == AVMEDIA_TYPE_AUDIO) {
3054 start_index = is->last_audio_stream;
3055 old_index = is->audio_stream;
3057 start_index = is->last_subtitle_stream;
3058 old_index = is->subtitle_stream;
3060 stream_index = start_index;
3062 if (codec_type != AVMEDIA_TYPE_VIDEO && is->video_stream != -1) {
3063 p = av_find_program_from_stream(ic, NULL, is->video_stream);
3065 nb_streams = p->nb_stream_indexes;
3066 for (start_index = 0; start_index < nb_streams; start_index++)
3067 if (p->stream_index[start_index] == stream_index)
3069 if (start_index == nb_streams)
3071 stream_index = start_index;
3076 if (++stream_index >= nb_streams)
3078 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
3081 is->last_subtitle_stream = -1;
3084 if (start_index == -1)
3088 if (stream_index == start_index)
3090 st = is->ic->streams[p ? p->stream_index[stream_index] : stream_index];
3091 if (st->codec->codec_type == codec_type) {
3092 /* check that parameters are OK */
3093 switch (codec_type) {
3094 case AVMEDIA_TYPE_AUDIO:
3095 if (st->codec->sample_rate != 0 &&
3096 st->codec->channels != 0)
3099 case AVMEDIA_TYPE_VIDEO:
3100 case AVMEDIA_TYPE_SUBTITLE:
3108 if (p && stream_index != -1)
3109 stream_index = p->stream_index[stream_index];
3110 stream_component_close(is, old_index);
3111 stream_component_open(is, stream_index);
3115 static void toggle_full_screen(VideoState *is)
3117 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
3118 /* OS X needs to reallocate the SDL overlays */
3120 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++)
3121 is->pictq[i].reallocate = 1;
3123 is_full_screen = !is_full_screen;
3124 video_open(is, 1, NULL);
3127 static void toggle_audio_display(VideoState *is)
3129 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
3130 int next = is->show_mode;
3132 next = (next + 1) % SHOW_MODE_NB;
3133 } while (next != is->show_mode && (next == SHOW_MODE_VIDEO && !is->video_st || next != SHOW_MODE_VIDEO && !is->audio_st));
3134 if (is->show_mode != next) {
3135 fill_rectangle(screen,
3136 is->xleft, is->ytop, is->width, is->height,
3138 is->force_refresh = 1;
3139 is->show_mode = next;
3143 static void refresh_loop_wait_event(VideoState *is, SDL_Event *event) {
3144 double remaining_time = 0.0;
3146 while (!SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS)) {
3147 if (!cursor_hidden && av_gettime() - cursor_last_shown > CURSOR_HIDE_DELAY) {
3151 if (remaining_time > 0.0)
3152 av_usleep((int64_t)(remaining_time * 1000000.0));
3153 remaining_time = REFRESH_RATE;
3154 if (is->show_mode != SHOW_MODE_NONE && (!is->paused || is->force_refresh))
3155 video_refresh(is, &remaining_time);
3160 /* handle an event sent by the GUI */
3161 static void event_loop(VideoState *cur_stream)
3164 double incr, pos, frac;
3168 refresh_loop_wait_event(cur_stream, &event);
3169 switch (event.type) {
3171 if (exit_on_keydown) {
3172 do_exit(cur_stream);
3175 switch (event.key.keysym.sym) {
3178 do_exit(cur_stream);
3181 toggle_full_screen(cur_stream);
3182 cur_stream->force_refresh = 1;
3186 toggle_pause(cur_stream);
3188 case SDLK_s: // S: Step to next frame
3189 step_to_next_frame(cur_stream);
3192 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
3195 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
3198 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
3199 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
3200 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
3203 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
3206 toggle_audio_display(cur_stream);
3226 if (seek_by_bytes) {
3227 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) {
3228 pos = cur_stream->video_current_pos;
3229 } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) {
3230 pos = cur_stream->audio_pkt.pos;
3232 pos = avio_tell(cur_stream->ic->pb);
3233 if (cur_stream->ic->bit_rate)
3234 incr *= cur_stream->ic->bit_rate / 8.0;
3238 stream_seek(cur_stream, pos, incr, 1);
3240 pos = get_master_clock(cur_stream);
3242 pos = (double)cur_stream->seek_pos / AV_TIME_BASE;
3244 if (cur_stream->ic->start_time != AV_NOPTS_VALUE && pos < cur_stream->ic->start_time / (double)AV_TIME_BASE)
3245 pos = cur_stream->ic->start_time / (double)AV_TIME_BASE;
3246 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
3253 case SDL_VIDEOEXPOSE:
3254 cur_stream->force_refresh = 1;
3256 case SDL_MOUSEBUTTONDOWN:
3257 if (exit_on_mousedown) {
3258 do_exit(cur_stream);
3261 case SDL_MOUSEMOTION:
3262 if (cursor_hidden) {
3266 cursor_last_shown = av_gettime();
3267 if (event.type == SDL_MOUSEBUTTONDOWN) {
3270 if (event.motion.state != SDL_PRESSED)
3274 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
3275 uint64_t size = avio_size(cur_stream->ic->pb);
3276 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
3280 int tns, thh, tmm, tss;
3281 tns = cur_stream->ic->duration / 1000000LL;
3283 tmm = (tns % 3600) / 60;
3285 frac = x / cur_stream->width;
3288 mm = (ns % 3600) / 60;
3290 av_log(NULL, AV_LOG_INFO,
3291 "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
3292 hh, mm, ss, thh, tmm, tss);
3293 ts = frac * cur_stream->ic->duration;
3294 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
3295 ts += cur_stream->ic->start_time;
3296 stream_seek(cur_stream, ts, 0, 0);
3299 case SDL_VIDEORESIZE:
3300 screen = SDL_SetVideoMode(FFMIN(16383, event.resize.w), event.resize.h, 0,
3301 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
3303 av_log(NULL, AV_LOG_FATAL, "Failed to set video mode\n");
3304 do_exit(cur_stream);
3306 screen_width = cur_stream->width = screen->w;
3307 screen_height = cur_stream->height = screen->h;
3308 cur_stream->force_refresh = 1;
3312 do_exit(cur_stream);
3314 case FF_ALLOC_EVENT:
3315 alloc_picture(event.user.data1);
3323 static int opt_frame_size(void *optctx, const char *opt, const char *arg)
3325 av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
3326 return opt_default(NULL, "video_size", arg);
3329 static int opt_width(void *optctx, const char *opt, const char *arg)
3331 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
3335 static int opt_height(void *optctx, const char *opt, const char *arg)
3337 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
3341 static int opt_format(void *optctx, const char *opt, const char *arg)
3343 file_iformat = av_find_input_format(arg);
3344 if (!file_iformat) {
3345 av_log(NULL, AV_LOG_FATAL, "Unknown input format: %s\n", arg);
3346 return AVERROR(EINVAL);
3351 static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg)
3353 av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
3354 return opt_default(NULL, "pixel_format", arg);
3357 static int opt_sync(void *optctx, const char *opt, const char *arg)
3359 if (!strcmp(arg, "audio"))
3360 av_sync_type = AV_SYNC_AUDIO_MASTER;
3361 else if (!strcmp(arg, "video"))
3362 av_sync_type = AV_SYNC_VIDEO_MASTER;
3363 else if (!strcmp(arg, "ext"))
3364 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
3366 av_log(NULL, AV_LOG_ERROR, "Unknown value for %s: %s\n", opt, arg);
3372 static int opt_seek(void *optctx, const char *opt, const char *arg)
3374 start_time = parse_time_or_die(opt, arg, 1);
3378 static int opt_duration(void *optctx, const char *opt, const char *arg)
3380 duration = parse_time_or_die(opt, arg, 1);
3384 static int opt_show_mode(void *optctx, const char *opt, const char *arg)
3386 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
3387 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
3388 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
3389 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
3393 static void opt_input_file(void *optctx, const char *filename)
3395 if (input_filename) {
3396 av_log(NULL, AV_LOG_FATAL,
3397 "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3398 filename, input_filename);
3401 if (!strcmp(filename, "-"))
3403 input_filename = filename;
3406 static int opt_codec(void *optctx, const char *opt, const char *arg)
3408 const char *spec = strchr(opt, ':');
3410 av_log(NULL, AV_LOG_ERROR,
3411 "No media specifier was specified in '%s' in option '%s'\n",
3413 return AVERROR(EINVAL);
3417 case 'a' : audio_codec_name = arg; break;
3418 case 's' : subtitle_codec_name = arg; break;
3419 case 'v' : video_codec_name = arg; break;
3421 av_log(NULL, AV_LOG_ERROR,
3422 "Invalid media specifier '%s' in option '%s'\n", spec, opt);
3423 return AVERROR(EINVAL);
3430 static const OptionDef options[] = {
3431 #include "cmdutils_common_opts.h"
3432 { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" },
3433 { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" },
3434 { "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
3435 { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" },
3436 { "an", OPT_BOOL, { &audio_disable }, "disable audio" },
3437 { "vn", OPT_BOOL, { &video_disable }, "disable video" },
3438 { "sn", OPT_BOOL, { &subtitle_disable }, "disable subtitling" },
3439 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
3440 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
3441 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
3442 { "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" },
3443 { "t", HAS_ARG, { .func_arg = opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
3444 { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
3445 { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" },
3446 { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" },
3447 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" },
3448 { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" },
3449 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { &workaround_bugs }, "workaround bugs", "" },
3450 { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" },
3451 { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" },
3452 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3453 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { &lowres }, "", "" },
3454 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { &error_concealment }, "set error concealment options", "bit_mask" },
3455 { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
3456 { "autoexit", OPT_BOOL | OPT_EXPERT, { &autoexit }, "exit at the end", "" },
3457 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" },
3458 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" },
3459 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" },
3460 { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" },
3461 { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" },
3462 { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" },
3464 { "vf", OPT_STRING | HAS_ARG, { &vfilters }, "set video filters", "filter_graph" },
3465 { "af", OPT_STRING | HAS_ARG, { &afilters }, "set audio filters", "filter_graph" },
3467 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" },
3468 { "showmode", HAS_ARG, { .func_arg = opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
3469 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { .func_arg = opt_default }, "generic catch all option", "" },
3470 { "i", OPT_BOOL, { &dummy}, "read specified file", "input_file"},
3471 { "codec", HAS_ARG, { .func_arg = opt_codec}, "force decoder", "decoder_name" },
3472 { "acodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &audio_codec_name }, "force audio decoder", "decoder_name" },
3473 { "scodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &subtitle_codec_name }, "force subtitle decoder", "decoder_name" },
3474 { "vcodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &video_codec_name }, "force video decoder", "decoder_name" },
3478 static void show_usage(void)
3480 av_log(NULL, AV_LOG_INFO, "Simple media player\n");
3481 av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name);
3482 av_log(NULL, AV_LOG_INFO, "\n");
3485 void show_help_default(const char *opt, const char *arg)
3487 av_log_set_callback(log_callback_help);
3489 show_help_options(options, "Main options:", 0, OPT_EXPERT, 0);
3490 show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0);
3492 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3493 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3494 #if !CONFIG_AVFILTER
3495 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3497 show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM);
3499 printf("\nWhile playing:\n"
3501 "f toggle full screen\n"
3503 "a cycle audio channel\n"
3504 "v cycle video channel\n"
3505 "t cycle subtitle channel\n"
3507 "w show audio waves\n"
3508 "s activate frame-step mode\n"
3509 "left/right seek backward/forward 10 seconds\n"
3510 "down/up seek backward/forward 1 minute\n"
3511 "page down/page up seek backward/forward 10 minutes\n"
3512 "mouse click seek to percentage in file corresponding to fraction of width\n"
3516 static int lockmgr(void **mtx, enum AVLockOp op)
3519 case AV_LOCK_CREATE:
3520 *mtx = SDL_CreateMutex();
3524 case AV_LOCK_OBTAIN:
3525 return !!SDL_LockMutex(*mtx);
3526 case AV_LOCK_RELEASE:
3527 return !!SDL_UnlockMutex(*mtx);
3528 case AV_LOCK_DESTROY:
3529 SDL_DestroyMutex(*mtx);
3535 /* Called from the main */
3536 int main(int argc, char **argv)
3540 char dummy_videodriver[] = "SDL_VIDEODRIVER=dummy";
3542 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3543 parse_loglevel(argc, argv, options);
3545 /* register all codecs, demux and protocols */
3546 avcodec_register_all();
3548 avdevice_register_all();
3551 avfilter_register_all();
3554 avformat_network_init();
3558 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
3559 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
3561 show_banner(argc, argv, options);
3563 parse_options(NULL, argc, argv, options, opt_input_file);
3565 if (!input_filename) {
3567 av_log(NULL, AV_LOG_FATAL, "An input file must be specified\n");
3568 av_log(NULL, AV_LOG_FATAL,
3569 "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3573 if (display_disable) {
3576 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3578 flags &= ~SDL_INIT_AUDIO;
3579 if (display_disable)
3580 SDL_putenv(dummy_videodriver); /* For the event queue, we always need a video driver. */
3581 #if !defined(__MINGW32__) && !defined(__APPLE__)
3582 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3584 if (SDL_Init (flags)) {
3585 av_log(NULL, AV_LOG_FATAL, "Could not initialize SDL - %s\n", SDL_GetError());
3586 av_log(NULL, AV_LOG_FATAL, "(Did you set the DISPLAY variable?)\n");
3590 if (!display_disable) {
3591 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3592 fs_screen_width = vi->current_w;
3593 fs_screen_height = vi->current_h;
3596 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3597 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3598 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3600 if (av_lockmgr_register(lockmgr)) {
3601 av_log(NULL, AV_LOG_FATAL, "Could not initialize lock manager!\n");
3605 av_init_packet(&flush_pkt);
3606 flush_pkt.data = (uint8_t *)&flush_pkt;
3608 is = stream_open(input_filename, file_iformat);
3610 av_log(NULL, AV_LOG_FATAL, "Failed to initialize VideoState!\n");