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
33 #include "libavutil/avstring.h"
34 #include "libavutil/colorspace.h"
35 #include "libavutil/mathematics.h"
36 #include "libavutil/pixdesc.h"
37 #include "libavutil/imgutils.h"
38 #include "libavutil/dict.h"
39 #include "libavutil/parseutils.h"
40 #include "libavutil/samplefmt.h"
41 #include "libavutil/avassert.h"
42 #include "libavutil/time.h"
43 #include "libavformat/avformat.h"
44 #include "libavdevice/avdevice.h"
45 #include "libswscale/swscale.h"
46 #include "libavutil/opt.h"
47 #include "libavcodec/avfft.h"
48 #include "libswresample/swresample.h"
51 # include "libavfilter/avcodec.h"
52 # include "libavfilter/avfilter.h"
53 # include "libavfilter/buffersink.h"
54 # include "libavfilter/buffersrc.h"
58 #include <SDL_thread.h>
64 const char program_name[] = "ffplay";
65 const int program_birth_year = 2003;
67 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
70 /* SDL audio buffer size, in samples. Should be small to have precise
71 A/V sync as SDL does not have hardware buffer fullness info. */
72 #define SDL_AUDIO_BUFFER_SIZE 1024
74 /* no AV sync correction is done if below the minimum AV sync threshold */
75 #define AV_SYNC_THRESHOLD_MIN 0.01
76 /* AV sync correction is done if above the maximum AV sync threshold */
77 #define AV_SYNC_THRESHOLD_MAX 0.1
78 /* If a frame duration is longer than this, it will not be duplicated to compensate AV sync */
79 #define AV_SYNC_FRAMEDUP_THRESHOLD 0.1
80 /* no AV correction is done if too big error */
81 #define AV_NOSYNC_THRESHOLD 10.0
83 /* maximum audio speed change to get correct sync */
84 #define SAMPLE_CORRECTION_PERCENT_MAX 10
86 /* external clock speed adjustment constants for realtime sources based on buffer fullness */
87 #define EXTERNAL_CLOCK_SPEED_MIN 0.900
88 #define EXTERNAL_CLOCK_SPEED_MAX 1.010
89 #define EXTERNAL_CLOCK_SPEED_STEP 0.001
91 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
92 #define AUDIO_DIFF_AVG_NB 20
94 /* polls for possible required screen refresh at least this often, should be less than 1/fps */
95 #define REFRESH_RATE 0.01
97 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
98 /* TODO: We assume that a decoded and resampled frame fits into this buffer */
99 #define SAMPLE_ARRAY_SIZE (8 * 65536)
101 #define CURSOR_HIDE_DELAY 1000000
103 static int64_t sws_flags = SWS_BICUBIC;
105 typedef struct MyAVPacketList {
107 struct MyAVPacketList *next;
111 typedef struct PacketQueue {
112 MyAVPacketList *first_pkt, *last_pkt;
121 #define VIDEO_PICTURE_QUEUE_SIZE 3
122 #define SUBPICTURE_QUEUE_SIZE 4
124 typedef struct VideoPicture {
125 double pts; // presentation timestamp for this picture
126 double duration; // estimated duration based on frame rate
127 int64_t pos; // byte position in file
129 int width, height; /* source height & width */
137 typedef struct SubPicture {
138 double pts; /* presentation time stamp for this picture */
143 typedef struct AudioParams {
146 int64_t channel_layout;
147 enum AVSampleFormat fmt;
152 typedef struct Clock {
153 double pts; /* clock base */
154 double pts_drift; /* clock base minus time at which we updated the clock */
157 int serial; /* clock is based on a packet with this serial */
159 int *queue_serial; /* pointer to the current packet queue serial, used for obsolete clock detection */
163 AV_SYNC_AUDIO_MASTER, /* default choice */
164 AV_SYNC_VIDEO_MASTER,
165 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
168 typedef struct VideoState {
169 SDL_Thread *read_tid;
170 SDL_Thread *video_tid;
171 AVInputFormat *iformat;
177 int queue_attachments_req;
182 int read_pause_return;
197 int audio_clock_serial;
198 double audio_diff_cum; /* used for AV difference average computation */
199 double audio_diff_avg_coef;
200 double audio_diff_threshold;
201 int audio_diff_avg_count;
204 int audio_hw_buf_size;
205 uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
208 unsigned int audio_buf_size; /* in bytes */
209 unsigned int audio_buf1_size;
210 int audio_buf_index; /* in bytes */
211 int audio_write_buf_size;
212 int audio_buf_frames_pending;
213 AVPacket audio_pkt_temp;
215 int audio_pkt_temp_serial;
216 int audio_last_serial;
217 struct AudioParams audio_src;
219 struct AudioParams audio_filter_src;
221 struct AudioParams audio_tgt;
222 struct SwrContext *swr_ctx;
223 int frame_drops_early;
224 int frame_drops_late;
226 int64_t audio_frame_next_pts;
229 SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
231 int16_t sample_array[SAMPLE_ARRAY_SIZE];
232 int sample_array_index;
236 FFTSample *rdft_data;
238 double last_vis_time;
240 SDL_Thread *subtitle_tid;
242 AVStream *subtitle_st;
243 PacketQueue subtitleq;
244 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
245 int subpq_size, subpq_rindex, subpq_windex;
246 SDL_mutex *subpq_mutex;
247 SDL_cond *subpq_cond;
250 double frame_last_returned_time;
251 double frame_last_filter_delay;
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_private(PacketQueue *q, AVPacket *pkt)
364 MyAVPacketList *pkt1;
366 if (q->abort_request)
369 pkt1 = av_malloc(sizeof(MyAVPacketList));
374 if (pkt == &flush_pkt)
376 pkt1->serial = q->serial;
381 q->last_pkt->next = pkt1;
384 q->size += pkt1->pkt.size + sizeof(*pkt1);
385 /* XXX: should duplicate packet data in DV case */
386 SDL_CondSignal(q->cond);
390 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
394 /* duplicate the packet */
395 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
398 SDL_LockMutex(q->mutex);
399 ret = packet_queue_put_private(q, pkt);
400 SDL_UnlockMutex(q->mutex);
402 if (pkt != &flush_pkt && ret < 0)
408 static int packet_queue_put_nullpacket(PacketQueue *q, int stream_index)
410 AVPacket pkt1, *pkt = &pkt1;
414 pkt->stream_index = stream_index;
415 return packet_queue_put(q, pkt);
418 /* packet queue handling */
419 static void packet_queue_init(PacketQueue *q)
421 memset(q, 0, sizeof(PacketQueue));
422 q->mutex = SDL_CreateMutex();
423 q->cond = SDL_CreateCond();
424 q->abort_request = 1;
427 static void packet_queue_flush(PacketQueue *q)
429 MyAVPacketList *pkt, *pkt1;
431 SDL_LockMutex(q->mutex);
432 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
434 av_free_packet(&pkt->pkt);
441 SDL_UnlockMutex(q->mutex);
444 static void packet_queue_destroy(PacketQueue *q)
446 packet_queue_flush(q);
447 SDL_DestroyMutex(q->mutex);
448 SDL_DestroyCond(q->cond);
451 static void packet_queue_abort(PacketQueue *q)
453 SDL_LockMutex(q->mutex);
455 q->abort_request = 1;
457 SDL_CondSignal(q->cond);
459 SDL_UnlockMutex(q->mutex);
462 static void packet_queue_start(PacketQueue *q)
464 SDL_LockMutex(q->mutex);
465 q->abort_request = 0;
466 packet_queue_put_private(q, &flush_pkt);
467 SDL_UnlockMutex(q->mutex);
470 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
471 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *serial)
473 MyAVPacketList *pkt1;
476 SDL_LockMutex(q->mutex);
479 if (q->abort_request) {
486 q->first_pkt = pkt1->next;
490 q->size -= pkt1->pkt.size + sizeof(*pkt1);
493 *serial = pkt1->serial;
501 SDL_CondWait(q->cond, q->mutex);
504 SDL_UnlockMutex(q->mutex);
508 static inline void fill_rectangle(SDL_Surface *screen,
509 int x, int y, int w, int h, int color, int update)
516 SDL_FillRect(screen, &rect, color);
517 if (update && w > 0 && h > 0)
518 SDL_UpdateRect(screen, x, y, w, h);
521 /* draw only the border of a rectangle */
522 static void fill_border(int xleft, int ytop, int width, int height, int x, int y, int w, int h, int color, int update)
526 /* fill the background */
530 w2 = width - (x + w);
536 h2 = height - (y + h);
539 fill_rectangle(screen,
543 fill_rectangle(screen,
544 xleft + width - w2, ytop,
547 fill_rectangle(screen,
551 fill_rectangle(screen,
552 xleft + w1, ytop + height - h2,
557 #define ALPHA_BLEND(a, oldp, newp, s)\
558 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
560 #define RGBA_IN(r, g, b, a, s)\
562 unsigned int v = ((const uint32_t *)(s))[0];\
563 a = (v >> 24) & 0xff;\
564 r = (v >> 16) & 0xff;\
565 g = (v >> 8) & 0xff;\
569 #define YUVA_IN(y, u, v, a, s, pal)\
571 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
572 a = (val >> 24) & 0xff;\
573 y = (val >> 16) & 0xff;\
574 u = (val >> 8) & 0xff;\
578 #define YUVA_OUT(d, y, u, v, a)\
580 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
586 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
588 int wrap, wrap3, width2, skip2;
589 int y, u, v, a, u1, v1, a1, w, h;
590 uint8_t *lum, *cb, *cr;
593 int dstx, dsty, dstw, dsth;
595 dstw = av_clip(rect->w, 0, imgw);
596 dsth = av_clip(rect->h, 0, imgh);
597 dstx = av_clip(rect->x, 0, imgw - dstw);
598 dsty = av_clip(rect->y, 0, imgh - dsth);
599 lum = dst->data[0] + dsty * dst->linesize[0];
600 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
601 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
603 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
605 wrap = dst->linesize[0];
606 wrap3 = rect->pict.linesize[0];
607 p = rect->pict.data[0];
608 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
616 YUVA_IN(y, u, v, a, p, pal);
617 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
618 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
619 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
625 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
626 YUVA_IN(y, u, v, a, p, pal);
630 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
632 YUVA_IN(y, u, v, a, p + BPP, pal);
636 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
637 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
638 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
645 YUVA_IN(y, u, v, a, p, pal);
646 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
647 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
648 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
652 p += wrap3 - dstw * BPP;
653 lum += wrap - dstw - dstx;
654 cb += dst->linesize[1] - width2 - skip2;
655 cr += dst->linesize[2] - width2 - skip2;
657 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
663 YUVA_IN(y, u, v, a, p, pal);
667 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
670 YUVA_IN(y, u, v, a, p, pal);
674 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
675 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
676 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
682 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
683 YUVA_IN(y, u, v, a, p, pal);
687 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
689 YUVA_IN(y, u, v, a, p + BPP, pal);
693 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
697 YUVA_IN(y, u, v, a, p, pal);
701 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
703 YUVA_IN(y, u, v, a, p + BPP, pal);
707 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
709 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
710 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
714 p += -wrap3 + 2 * BPP;
718 YUVA_IN(y, u, v, a, p, pal);
722 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
725 YUVA_IN(y, u, v, a, p, pal);
729 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
730 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
731 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
737 p += wrap3 + (wrap3 - dstw * BPP);
738 lum += wrap + (wrap - dstw - dstx);
739 cb += dst->linesize[1] - width2 - skip2;
740 cr += dst->linesize[2] - width2 - skip2;
742 /* handle odd height */
749 YUVA_IN(y, u, v, a, p, pal);
750 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
751 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
752 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
758 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
759 YUVA_IN(y, u, v, a, p, pal);
763 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
765 YUVA_IN(y, u, v, a, p + BPP, pal);
769 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
770 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
771 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
778 YUVA_IN(y, u, v, a, p, pal);
779 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
780 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
781 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
786 static void free_picture(VideoPicture *vp)
789 SDL_FreeYUVOverlay(vp->bmp);
794 static void free_subpicture(SubPicture *sp)
796 avsubtitle_free(&sp->sub);
799 static void calculate_display_rect(SDL_Rect *rect, int scr_xleft, int scr_ytop, int scr_width, int scr_height, VideoPicture *vp)
802 int width, height, x, y;
804 if (vp->sar.num == 0)
807 aspect_ratio = av_q2d(vp->sar);
809 if (aspect_ratio <= 0.0)
811 aspect_ratio *= (float)vp->width / (float)vp->height;
813 /* XXX: we suppose the screen has a 1.0 pixel ratio */
815 width = ((int)rint(height * aspect_ratio)) & ~1;
816 if (width > scr_width) {
818 height = ((int)rint(width / aspect_ratio)) & ~1;
820 x = (scr_width - width) / 2;
821 y = (scr_height - height) / 2;
822 rect->x = scr_xleft + x;
823 rect->y = scr_ytop + y;
824 rect->w = FFMAX(width, 1);
825 rect->h = FFMAX(height, 1);
828 static void video_image_display(VideoState *is)
836 vp = &is->pictq[is->pictq_rindex];
838 if (is->subtitle_st) {
839 if (is->subpq_size > 0) {
840 sp = &is->subpq[is->subpq_rindex];
842 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
843 SDL_LockYUVOverlay (vp->bmp);
845 pict.data[0] = vp->bmp->pixels[0];
846 pict.data[1] = vp->bmp->pixels[2];
847 pict.data[2] = vp->bmp->pixels[1];
849 pict.linesize[0] = vp->bmp->pitches[0];
850 pict.linesize[1] = vp->bmp->pitches[2];
851 pict.linesize[2] = vp->bmp->pitches[1];
853 for (i = 0; i < sp->sub.num_rects; i++)
854 blend_subrect(&pict, sp->sub.rects[i],
855 vp->bmp->w, vp->bmp->h);
857 SDL_UnlockYUVOverlay (vp->bmp);
862 calculate_display_rect(&rect, is->xleft, is->ytop, is->width, is->height, vp);
864 SDL_DisplayYUVOverlay(vp->bmp, &rect);
866 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) {
867 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
868 fill_border(is->xleft, is->ytop, is->width, is->height, rect.x, rect.y, rect.w, rect.h, bgcolor, 1);
869 is->last_display_rect = rect;
874 static inline int compute_mod(int a, int b)
876 return a < 0 ? a%b + b : a%b;
879 static void video_audio_display(VideoState *s)
881 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
882 int ch, channels, h, h2, bgcolor, fgcolor;
884 int rdft_bits, nb_freq;
886 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
888 nb_freq = 1 << (rdft_bits - 1);
890 /* compute display index : center on currently output samples */
891 channels = s->audio_tgt.channels;
892 nb_display_channels = channels;
894 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
896 delay = s->audio_write_buf_size;
899 /* to be more precise, we take into account the time spent since
900 the last buffer computation */
901 if (audio_callback_time) {
902 time_diff = av_gettime() - audio_callback_time;
903 delay -= (time_diff * s->audio_tgt.freq) / 1000000;
906 delay += 2 * data_used;
907 if (delay < data_used)
910 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
911 if (s->show_mode == SHOW_MODE_WAVES) {
913 for (i = 0; i < 1000; i += channels) {
914 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
915 int a = s->sample_array[idx];
916 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
917 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
918 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
920 if (h < score && (b ^ c) < 0) {
927 s->last_i_start = i_start;
929 i_start = s->last_i_start;
932 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
933 if (s->show_mode == SHOW_MODE_WAVES) {
934 fill_rectangle(screen,
935 s->xleft, s->ytop, s->width, s->height,
938 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
940 /* total height for one channel */
941 h = s->height / nb_display_channels;
942 /* graph height / 2 */
944 for (ch = 0; ch < nb_display_channels; ch++) {
946 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
947 for (x = 0; x < s->width; x++) {
948 y = (s->sample_array[i] * h2) >> 15;
955 fill_rectangle(screen,
956 s->xleft + x, ys, 1, y,
959 if (i >= SAMPLE_ARRAY_SIZE)
960 i -= SAMPLE_ARRAY_SIZE;
964 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
966 for (ch = 1; ch < nb_display_channels; ch++) {
967 y = s->ytop + ch * h;
968 fill_rectangle(screen,
969 s->xleft, y, s->width, 1,
972 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
974 nb_display_channels= FFMIN(nb_display_channels, 2);
975 if (rdft_bits != s->rdft_bits) {
976 av_rdft_end(s->rdft);
977 av_free(s->rdft_data);
978 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
979 s->rdft_bits = rdft_bits;
980 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
984 for (ch = 0; ch < nb_display_channels; ch++) {
985 data[ch] = s->rdft_data + 2 * nb_freq * ch;
987 for (x = 0; x < 2 * nb_freq; x++) {
988 double w = (x-nb_freq) * (1.0 / nb_freq);
989 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
991 if (i >= SAMPLE_ARRAY_SIZE)
992 i -= SAMPLE_ARRAY_SIZE;
994 av_rdft_calc(s->rdft, data[ch]);
996 /* Least efficient way to do this, we should of course
997 * directly access it but it is more than fast enough. */
998 for (y = 0; y < s->height; y++) {
999 double w = 1 / sqrt(nb_freq);
1000 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]));
1001 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
1002 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
1005 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
1007 fill_rectangle(screen,
1008 s->xpos, s->height-y, 1, 1,
1012 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
1015 if (s->xpos >= s->width)
1020 static void stream_close(VideoState *is)
1023 /* XXX: use a special url_shutdown call to abort parse cleanly */
1024 is->abort_request = 1;
1025 SDL_WaitThread(is->read_tid, NULL);
1026 packet_queue_destroy(&is->videoq);
1027 packet_queue_destroy(&is->audioq);
1028 packet_queue_destroy(&is->subtitleq);
1030 /* free all pictures */
1031 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++)
1032 free_picture(&is->pictq[i]);
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 void set_default_window_size(VideoPicture *vp)
1072 calculate_display_rect(&rect, 0, 0, INT_MAX, vp->height, vp);
1073 default_width = rect.w;
1074 default_height = rect.h;
1077 static int video_open(VideoState *is, int force_set_video_mode, VideoPicture *vp)
1079 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
1082 if (is_full_screen) flags |= SDL_FULLSCREEN;
1083 else flags |= SDL_RESIZABLE;
1085 if (vp && vp->width)
1086 set_default_window_size(vp);
1088 if (is_full_screen && fs_screen_width) {
1089 w = fs_screen_width;
1090 h = fs_screen_height;
1091 } else if (!is_full_screen && screen_width) {
1098 w = FFMIN(16383, w);
1099 if (screen && is->width == screen->w && screen->w == w
1100 && is->height== screen->h && screen->h == h && !force_set_video_mode)
1102 screen = SDL_SetVideoMode(w, h, 0, flags);
1104 av_log(NULL, AV_LOG_FATAL, "SDL: could not set video mode - exiting\n");
1108 window_title = input_filename;
1109 SDL_WM_SetCaption(window_title, window_title);
1111 is->width = screen->w;
1112 is->height = screen->h;
1117 /* display the current picture, if any */
1118 static void video_display(VideoState *is)
1121 video_open(is, 0, NULL);
1122 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
1123 video_audio_display(is);
1124 else if (is->video_st)
1125 video_image_display(is);
1128 static double get_clock(Clock *c)
1130 if (*c->queue_serial != c->serial)
1135 double time = av_gettime() / 1000000.0;
1136 return c->pts_drift + time - (time - c->last_updated) * (1.0 - c->speed);
1140 static void set_clock_at(Clock *c, double pts, int serial, double time)
1143 c->last_updated = time;
1144 c->pts_drift = c->pts - time;
1148 static void set_clock(Clock *c, double pts, int serial)
1150 double time = av_gettime() / 1000000.0;
1151 set_clock_at(c, pts, serial, time);
1154 static void set_clock_speed(Clock *c, double speed)
1156 set_clock(c, get_clock(c), c->serial);
1160 static void init_clock(Clock *c, int *queue_serial)
1164 c->queue_serial = queue_serial;
1165 set_clock(c, NAN, -1);
1168 static void sync_clock_to_slave(Clock *c, Clock *slave)
1170 double clock = get_clock(c);
1171 double slave_clock = get_clock(slave);
1172 if (!isnan(slave_clock) && (isnan(clock) || fabs(clock - slave_clock) > AV_NOSYNC_THRESHOLD))
1173 set_clock(c, slave_clock, slave->serial);
1176 static int get_master_sync_type(VideoState *is) {
1177 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1179 return AV_SYNC_VIDEO_MASTER;
1181 return AV_SYNC_AUDIO_MASTER;
1182 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1184 return AV_SYNC_AUDIO_MASTER;
1186 return AV_SYNC_EXTERNAL_CLOCK;
1188 return AV_SYNC_EXTERNAL_CLOCK;
1192 /* get the current master clock value */
1193 static double get_master_clock(VideoState *is)
1197 switch (get_master_sync_type(is)) {
1198 case AV_SYNC_VIDEO_MASTER:
1199 val = get_clock(&is->vidclk);
1201 case AV_SYNC_AUDIO_MASTER:
1202 val = get_clock(&is->audclk);
1205 val = get_clock(&is->extclk);
1211 static void check_external_clock_speed(VideoState *is) {
1212 if (is->video_stream >= 0 && is->videoq.nb_packets <= MIN_FRAMES / 2 ||
1213 is->audio_stream >= 0 && is->audioq.nb_packets <= MIN_FRAMES / 2) {
1214 set_clock_speed(&is->extclk, FFMAX(EXTERNAL_CLOCK_SPEED_MIN, is->extclk.speed - EXTERNAL_CLOCK_SPEED_STEP));
1215 } else if ((is->video_stream < 0 || is->videoq.nb_packets > MIN_FRAMES * 2) &&
1216 (is->audio_stream < 0 || is->audioq.nb_packets > MIN_FRAMES * 2)) {
1217 set_clock_speed(&is->extclk, FFMIN(EXTERNAL_CLOCK_SPEED_MAX, is->extclk.speed + EXTERNAL_CLOCK_SPEED_STEP));
1219 double speed = is->extclk.speed;
1221 set_clock_speed(&is->extclk, speed + EXTERNAL_CLOCK_SPEED_STEP * (1.0 - speed) / fabs(1.0 - speed));
1225 /* seek in the stream */
1226 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1228 if (!is->seek_req) {
1231 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1233 is->seek_flags |= AVSEEK_FLAG_BYTE;
1235 SDL_CondSignal(is->continue_read_thread);
1239 /* pause or resume the video */
1240 static void stream_toggle_pause(VideoState *is)
1243 is->frame_timer += av_gettime() / 1000000.0 + is->vidclk.pts_drift - is->vidclk.pts;
1244 if (is->read_pause_return != AVERROR(ENOSYS)) {
1245 is->vidclk.paused = 0;
1247 set_clock(&is->vidclk, get_clock(&is->vidclk), is->vidclk.serial);
1249 set_clock(&is->extclk, get_clock(&is->extclk), is->extclk.serial);
1250 is->paused = is->audclk.paused = is->vidclk.paused = is->extclk.paused = !is->paused;
1253 static void toggle_pause(VideoState *is)
1255 stream_toggle_pause(is);
1259 static void step_to_next_frame(VideoState *is)
1261 /* if the stream is paused unpause it, then step */
1263 stream_toggle_pause(is);
1267 static double compute_target_delay(double delay, VideoState *is)
1269 double sync_threshold, diff;
1271 /* update delay to follow master synchronisation source */
1272 if (get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER) {
1273 /* if video is slave, we try to correct big delays by
1274 duplicating or deleting a frame */
1275 diff = get_clock(&is->vidclk) - get_master_clock(is);
1277 /* skip or repeat frame. We take into account the
1278 delay to compute the threshold. I still don't know
1279 if it is the best guess */
1280 sync_threshold = FFMAX(AV_SYNC_THRESHOLD_MIN, FFMIN(AV_SYNC_THRESHOLD_MAX, delay));
1281 if (!isnan(diff) && fabs(diff) < is->max_frame_duration) {
1282 if (diff <= -sync_threshold)
1283 delay = FFMAX(0, delay + diff);
1284 else if (diff >= sync_threshold && delay > AV_SYNC_FRAMEDUP_THRESHOLD)
1285 delay = delay + diff;
1286 else if (diff >= sync_threshold)
1291 av_dlog(NULL, "video: delay=%0.3f A-V=%f\n",
1297 static double vp_duration(VideoState *is, VideoPicture *vp, VideoPicture *nextvp) {
1298 if (vp->serial == nextvp->serial) {
1299 double duration = nextvp->pts - vp->pts;
1300 if (isnan(duration) || duration <= 0 || duration > is->max_frame_duration)
1301 return vp->duration;
1309 static void pictq_next_picture(VideoState *is) {
1310 /* update queue size and signal for next picture */
1311 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1312 is->pictq_rindex = 0;
1314 SDL_LockMutex(is->pictq_mutex);
1316 SDL_CondSignal(is->pictq_cond);
1317 SDL_UnlockMutex(is->pictq_mutex);
1320 static int pictq_prev_picture(VideoState *is) {
1321 VideoPicture *prevvp;
1323 /* update queue size and signal for the previous picture */
1324 prevvp = &is->pictq[(is->pictq_rindex + VIDEO_PICTURE_QUEUE_SIZE - 1) % VIDEO_PICTURE_QUEUE_SIZE];
1325 if (prevvp->allocated && prevvp->serial == is->videoq.serial) {
1326 SDL_LockMutex(is->pictq_mutex);
1327 if (is->pictq_size < VIDEO_PICTURE_QUEUE_SIZE) {
1328 if (--is->pictq_rindex == -1)
1329 is->pictq_rindex = VIDEO_PICTURE_QUEUE_SIZE - 1;
1333 SDL_CondSignal(is->pictq_cond);
1334 SDL_UnlockMutex(is->pictq_mutex);
1339 static void update_video_pts(VideoState *is, double pts, int64_t pos, int serial) {
1340 /* update current video pts */
1341 set_clock(&is->vidclk, pts, serial);
1342 sync_clock_to_slave(&is->extclk, &is->vidclk);
1343 is->video_current_pos = pos;
1346 /* called to display each frame */
1347 static void video_refresh(void *opaque, double *remaining_time)
1349 VideoState *is = opaque;
1352 SubPicture *sp, *sp2;
1354 if (!is->paused && get_master_sync_type(is) == AV_SYNC_EXTERNAL_CLOCK && is->realtime)
1355 check_external_clock_speed(is);
1357 if (!display_disable && is->show_mode != SHOW_MODE_VIDEO && is->audio_st) {
1358 time = av_gettime() / 1000000.0;
1359 if (is->force_refresh || is->last_vis_time + rdftspeed < time) {
1361 is->last_vis_time = time;
1363 *remaining_time = FFMIN(*remaining_time, is->last_vis_time + rdftspeed - time);
1368 if (is->force_refresh)
1369 redisplay = pictq_prev_picture(is);
1371 if (is->pictq_size == 0) {
1372 // nothing to do, no picture to display in the queue
1374 double last_duration, duration, delay;
1375 VideoPicture *vp, *lastvp;
1377 /* dequeue the picture */
1378 vp = &is->pictq[is->pictq_rindex];
1379 lastvp = &is->pictq[(is->pictq_rindex + VIDEO_PICTURE_QUEUE_SIZE - 1) % VIDEO_PICTURE_QUEUE_SIZE];
1381 if (vp->serial != is->videoq.serial) {
1382 pictq_next_picture(is);
1383 is->video_current_pos = -1;
1388 if (lastvp->serial != vp->serial && !redisplay)
1389 is->frame_timer = av_gettime() / 1000000.0;
1394 /* compute nominal last_duration */
1395 last_duration = vp_duration(is, lastvp, vp);
1399 delay = compute_target_delay(last_duration, is);
1401 time= av_gettime()/1000000.0;
1402 if (time < is->frame_timer + delay && !redisplay) {
1403 *remaining_time = FFMIN(is->frame_timer + delay - time, *remaining_time);
1407 is->frame_timer += delay;
1408 if (delay > 0 && time - is->frame_timer > AV_SYNC_THRESHOLD_MAX)
1409 is->frame_timer = time;
1411 SDL_LockMutex(is->pictq_mutex);
1412 if (!redisplay && !isnan(vp->pts))
1413 update_video_pts(is, vp->pts, vp->pos, vp->serial);
1414 SDL_UnlockMutex(is->pictq_mutex);
1416 if (is->pictq_size > 1) {
1417 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1418 duration = vp_duration(is, vp, nextvp);
1419 if(!is->step && (redisplay || framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){
1421 is->frame_drops_late++;
1422 pictq_next_picture(is);
1428 if (is->subtitle_st) {
1429 while (is->subpq_size > 0) {
1430 sp = &is->subpq[is->subpq_rindex];
1432 if (is->subpq_size > 1)
1433 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1437 if (sp->serial != is->subtitleq.serial
1438 || (is->vidclk.pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1439 || (sp2 && is->vidclk.pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1441 free_subpicture(sp);
1443 /* update queue size and signal for next picture */
1444 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1445 is->subpq_rindex = 0;
1447 SDL_LockMutex(is->subpq_mutex);
1449 SDL_CondSignal(is->subpq_cond);
1450 SDL_UnlockMutex(is->subpq_mutex);
1458 /* display picture */
1459 if (!display_disable && is->show_mode == SHOW_MODE_VIDEO)
1462 pictq_next_picture(is);
1464 if (is->step && !is->paused)
1465 stream_toggle_pause(is);
1468 is->force_refresh = 0;
1470 static int64_t last_time;
1472 int aqsize, vqsize, sqsize;
1475 cur_time = av_gettime();
1476 if (!last_time || (cur_time - last_time) >= 30000) {
1481 aqsize = is->audioq.size;
1483 vqsize = is->videoq.size;
1484 if (is->subtitle_st)
1485 sqsize = is->subtitleq.size;
1487 if (is->audio_st && is->video_st)
1488 av_diff = get_clock(&is->audclk) - get_clock(&is->vidclk);
1489 else if (is->video_st)
1490 av_diff = get_master_clock(is) - get_clock(&is->vidclk);
1491 else if (is->audio_st)
1492 av_diff = get_master_clock(is) - get_clock(&is->audclk);
1493 av_log(NULL, AV_LOG_INFO,
1494 "%7.2f %s:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1495 get_master_clock(is),
1496 (is->audio_st && is->video_st) ? "A-V" : (is->video_st ? "M-V" : (is->audio_st ? "M-A" : " ")),
1498 is->frame_drops_early + is->frame_drops_late,
1502 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1503 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1505 last_time = cur_time;
1510 /* allocate a picture (needs to do that in main thread to avoid
1511 potential locking problems */
1512 static void alloc_picture(VideoState *is)
1517 vp = &is->pictq[is->pictq_windex];
1521 video_open(is, 0, vp);
1523 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1526 bufferdiff = vp->bmp ? FFMAX(vp->bmp->pixels[0], vp->bmp->pixels[1]) - FFMIN(vp->bmp->pixels[0], vp->bmp->pixels[1]) : 0;
1527 if (!vp->bmp || vp->bmp->pitches[0] < vp->width || bufferdiff < (int64_t)vp->height * vp->bmp->pitches[0]) {
1528 /* SDL allocates a buffer smaller than requested if the video
1529 * overlay hardware is unable to support the requested size. */
1530 av_log(NULL, AV_LOG_FATAL,
1531 "Error: the video system does not support an image\n"
1532 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1533 "to reduce the image size.\n", vp->width, vp->height );
1537 SDL_LockMutex(is->pictq_mutex);
1539 SDL_CondSignal(is->pictq_cond);
1540 SDL_UnlockMutex(is->pictq_mutex);
1543 static void duplicate_right_border_pixels(SDL_Overlay *bmp) {
1544 int i, width, height;
1546 for (i = 0; i < 3; i++) {
1553 if (bmp->pitches[i] > width) {
1554 maxp = bmp->pixels[i] + bmp->pitches[i] * height - 1;
1555 for (p = bmp->pixels[i] + width - 1; p < maxp; p += bmp->pitches[i])
1561 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, double duration, int64_t pos, int serial)
1565 #if defined(DEBUG_SYNC) && 0
1566 printf("frame_type=%c pts=%0.3f\n",
1567 av_get_picture_type_char(src_frame->pict_type), pts);
1570 /* wait until we have space to put a new picture */
1571 SDL_LockMutex(is->pictq_mutex);
1573 /* keep the last already displayed picture in the queue */
1574 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE - 1 &&
1575 !is->videoq.abort_request) {
1576 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1578 SDL_UnlockMutex(is->pictq_mutex);
1580 if (is->videoq.abort_request)
1583 vp = &is->pictq[is->pictq_windex];
1585 vp->sar = src_frame->sample_aspect_ratio;
1587 /* alloc or resize hardware picture buffer */
1588 if (!vp->bmp || vp->reallocate || !vp->allocated ||
1589 vp->width != src_frame->width ||
1590 vp->height != src_frame->height) {
1595 vp->width = src_frame->width;
1596 vp->height = src_frame->height;
1598 /* the allocation must be done in the main thread to avoid
1599 locking problems. */
1600 event.type = FF_ALLOC_EVENT;
1601 event.user.data1 = is;
1602 SDL_PushEvent(&event);
1604 /* wait until the picture is allocated */
1605 SDL_LockMutex(is->pictq_mutex);
1606 while (!vp->allocated && !is->videoq.abort_request) {
1607 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1609 /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */
1610 if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) {
1611 while (!vp->allocated && !is->abort_request) {
1612 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1615 SDL_UnlockMutex(is->pictq_mutex);
1617 if (is->videoq.abort_request)
1621 /* if the frame is not skipped, then display it */
1623 AVPicture pict = { { 0 } };
1625 /* get a pointer on the bitmap */
1626 SDL_LockYUVOverlay (vp->bmp);
1628 pict.data[0] = vp->bmp->pixels[0];
1629 pict.data[1] = vp->bmp->pixels[2];
1630 pict.data[2] = vp->bmp->pixels[1];
1632 pict.linesize[0] = vp->bmp->pitches[0];
1633 pict.linesize[1] = vp->bmp->pitches[2];
1634 pict.linesize[2] = vp->bmp->pitches[1];
1637 // FIXME use direct rendering
1638 av_picture_copy(&pict, (AVPicture *)src_frame,
1639 src_frame->format, vp->width, vp->height);
1641 av_opt_get_int(sws_opts, "sws_flags", 0, &sws_flags);
1642 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1643 vp->width, vp->height, src_frame->format, vp->width, vp->height,
1644 AV_PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1645 if (is->img_convert_ctx == NULL) {
1646 av_log(NULL, AV_LOG_FATAL, "Cannot initialize the conversion context\n");
1649 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1650 0, vp->height, pict.data, pict.linesize);
1652 /* workaround SDL PITCH_WORKAROUND */
1653 duplicate_right_border_pixels(vp->bmp);
1654 /* update the bitmap content */
1655 SDL_UnlockYUVOverlay(vp->bmp);
1658 vp->duration = duration;
1660 vp->serial = serial;
1662 /* now we can update the picture count */
1663 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1664 is->pictq_windex = 0;
1665 SDL_LockMutex(is->pictq_mutex);
1667 SDL_UnlockMutex(is->pictq_mutex);
1672 static int get_video_frame(VideoState *is, AVFrame *frame, AVPacket *pkt, int *serial)
1676 if (packet_queue_get(&is->videoq, pkt, 1, serial) < 0)
1679 if (pkt->data == flush_pkt.data) {
1680 avcodec_flush_buffers(is->video_st->codec);
1684 if(avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt) < 0)
1687 if (!got_picture && !pkt->data)
1688 is->video_finished = *serial;
1694 if (decoder_reorder_pts == -1) {
1695 frame->pts = av_frame_get_best_effort_timestamp(frame);
1696 } else if (decoder_reorder_pts) {
1697 frame->pts = frame->pkt_pts;
1699 frame->pts = frame->pkt_dts;
1702 if (frame->pts != AV_NOPTS_VALUE)
1703 dpts = av_q2d(is->video_st->time_base) * frame->pts;
1705 frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame);
1707 if (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) {
1708 if (frame->pts != AV_NOPTS_VALUE) {
1709 double diff = dpts - get_master_clock(is);
1710 if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD &&
1711 diff - is->frame_last_filter_delay < 0 &&
1712 *serial == is->vidclk.serial &&
1713 is->videoq.nb_packets) {
1714 is->frame_drops_early++;
1715 av_frame_unref(frame);
1727 static int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph,
1728 AVFilterContext *source_ctx, AVFilterContext *sink_ctx)
1731 AVFilterInOut *outputs = NULL, *inputs = NULL;
1734 outputs = avfilter_inout_alloc();
1735 inputs = avfilter_inout_alloc();
1736 if (!outputs || !inputs) {
1737 ret = AVERROR(ENOMEM);
1741 outputs->name = av_strdup("in");
1742 outputs->filter_ctx = source_ctx;
1743 outputs->pad_idx = 0;
1744 outputs->next = NULL;
1746 inputs->name = av_strdup("out");
1747 inputs->filter_ctx = sink_ctx;
1748 inputs->pad_idx = 0;
1749 inputs->next = NULL;
1751 if ((ret = avfilter_graph_parse_ptr(graph, filtergraph, &inputs, &outputs, NULL)) < 0)
1754 if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0)
1758 ret = avfilter_graph_config(graph, NULL);
1760 avfilter_inout_free(&outputs);
1761 avfilter_inout_free(&inputs);
1765 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters, AVFrame *frame)
1767 static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE };
1768 char sws_flags_str[128];
1769 char buffersrc_args[256];
1771 AVFilterContext *filt_src = NULL, *filt_out = NULL, *filt_crop;
1772 AVCodecContext *codec = is->video_st->codec;
1773 AVRational fr = av_guess_frame_rate(is->ic, is->video_st, NULL);
1775 av_opt_get_int(sws_opts, "sws_flags", 0, &sws_flags);
1776 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%"PRId64, sws_flags);
1777 graph->scale_sws_opts = av_strdup(sws_flags_str);
1779 snprintf(buffersrc_args, sizeof(buffersrc_args),
1780 "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
1781 frame->width, frame->height, frame->format,
1782 is->video_st->time_base.num, is->video_st->time_base.den,
1783 codec->sample_aspect_ratio.num, FFMAX(codec->sample_aspect_ratio.den, 1));
1784 if (fr.num && fr.den)
1785 av_strlcatf(buffersrc_args, sizeof(buffersrc_args), ":frame_rate=%d/%d", fr.num, fr.den);
1787 if ((ret = avfilter_graph_create_filter(&filt_src,
1788 avfilter_get_by_name("buffer"),
1789 "ffplay_buffer", buffersrc_args, NULL,
1793 ret = avfilter_graph_create_filter(&filt_out,
1794 avfilter_get_by_name("buffersink"),
1795 "ffplay_buffersink", NULL, NULL, graph);
1799 if ((ret = av_opt_set_int_list(filt_out, "pix_fmts", pix_fmts, AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0)
1802 /* SDL YUV code is not handling odd width/height for some driver
1803 * combinations, therefore we crop the picture to an even width/height. */
1804 if ((ret = avfilter_graph_create_filter(&filt_crop,
1805 avfilter_get_by_name("crop"),
1806 "ffplay_crop", "floor(in_w/2)*2:floor(in_h/2)*2", NULL, graph)) < 0)
1808 if ((ret = avfilter_link(filt_crop, 0, filt_out, 0)) < 0)
1811 if ((ret = configure_filtergraph(graph, vfilters, filt_src, filt_crop)) < 0)
1814 is->in_video_filter = filt_src;
1815 is->out_video_filter = filt_out;
1821 static int configure_audio_filters(VideoState *is, const char *afilters, int force_output_format)
1823 static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE };
1824 int sample_rates[2] = { 0, -1 };
1825 int64_t channel_layouts[2] = { 0, -1 };
1826 int channels[2] = { 0, -1 };
1827 AVFilterContext *filt_asrc = NULL, *filt_asink = NULL;
1828 char aresample_swr_opts[512] = "";
1829 AVDictionaryEntry *e = NULL;
1830 char asrc_args[256];
1833 avfilter_graph_free(&is->agraph);
1834 if (!(is->agraph = avfilter_graph_alloc()))
1835 return AVERROR(ENOMEM);
1837 while ((e = av_dict_get(swr_opts, "", e, AV_DICT_IGNORE_SUFFIX)))
1838 av_strlcatf(aresample_swr_opts, sizeof(aresample_swr_opts), "%s=%s:", e->key, e->value);
1839 if (strlen(aresample_swr_opts))
1840 aresample_swr_opts[strlen(aresample_swr_opts)-1] = '\0';
1841 av_opt_set(is->agraph, "aresample_swr_opts", aresample_swr_opts, 0);
1843 ret = snprintf(asrc_args, sizeof(asrc_args),
1844 "sample_rate=%d:sample_fmt=%s:channels=%d:time_base=%d/%d",
1845 is->audio_filter_src.freq, av_get_sample_fmt_name(is->audio_filter_src.fmt),
1846 is->audio_filter_src.channels,
1847 1, is->audio_filter_src.freq);
1848 if (is->audio_filter_src.channel_layout)
1849 snprintf(asrc_args + ret, sizeof(asrc_args) - ret,
1850 ":channel_layout=0x%"PRIx64, is->audio_filter_src.channel_layout);
1852 ret = avfilter_graph_create_filter(&filt_asrc,
1853 avfilter_get_by_name("abuffer"), "ffplay_abuffer",
1854 asrc_args, NULL, is->agraph);
1859 ret = avfilter_graph_create_filter(&filt_asink,
1860 avfilter_get_by_name("abuffersink"), "ffplay_abuffersink",
1861 NULL, NULL, is->agraph);
1865 if ((ret = av_opt_set_int_list(filt_asink, "sample_fmts", sample_fmts, AV_SAMPLE_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0)
1867 if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 1, AV_OPT_SEARCH_CHILDREN)) < 0)
1870 if (force_output_format) {
1871 channel_layouts[0] = is->audio_tgt.channel_layout;
1872 channels [0] = is->audio_tgt.channels;
1873 sample_rates [0] = is->audio_tgt.freq;
1874 if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 0, AV_OPT_SEARCH_CHILDREN)) < 0)
1876 if ((ret = av_opt_set_int_list(filt_asink, "channel_layouts", channel_layouts, -1, AV_OPT_SEARCH_CHILDREN)) < 0)
1878 if ((ret = av_opt_set_int_list(filt_asink, "channel_counts" , channels , -1, AV_OPT_SEARCH_CHILDREN)) < 0)
1880 if ((ret = av_opt_set_int_list(filt_asink, "sample_rates" , sample_rates , -1, AV_OPT_SEARCH_CHILDREN)) < 0)
1885 if ((ret = configure_filtergraph(is->agraph, afilters, filt_asrc, filt_asink)) < 0)
1888 is->in_audio_filter = filt_asrc;
1889 is->out_audio_filter = filt_asink;
1893 avfilter_graph_free(&is->agraph);
1896 #endif /* CONFIG_AVFILTER */
1898 static int video_thread(void *arg)
1900 AVPacket pkt = { 0 };
1901 VideoState *is = arg;
1902 AVFrame *frame = av_frame_alloc();
1907 AVRational tb = is->video_st->time_base;
1908 AVRational frame_rate = av_guess_frame_rate(is->ic, is->video_st, NULL);
1911 AVFilterGraph *graph = avfilter_graph_alloc();
1912 AVFilterContext *filt_out = NULL, *filt_in = NULL;
1915 enum AVPixelFormat last_format = -2;
1916 int last_serial = -1;
1920 while (is->paused && !is->videoq.abort_request)
1923 av_free_packet(&pkt);
1925 ret = get_video_frame(is, frame, &pkt, &serial);
1932 if ( last_w != frame->width
1933 || last_h != frame->height
1934 || last_format != frame->format
1935 || last_serial != serial) {
1936 av_log(NULL, AV_LOG_DEBUG,
1937 "Video frame changed from size:%dx%d format:%s serial:%d to size:%dx%d format:%s serial:%d\n",
1939 (const char *)av_x_if_null(av_get_pix_fmt_name(last_format), "none"), last_serial,
1940 frame->width, frame->height,
1941 (const char *)av_x_if_null(av_get_pix_fmt_name(frame->format), "none"), serial);
1942 avfilter_graph_free(&graph);
1943 graph = avfilter_graph_alloc();
1944 if ((ret = configure_video_filters(graph, is, vfilters, frame)) < 0) {
1946 event.type = FF_QUIT_EVENT;
1947 event.user.data1 = is;
1948 SDL_PushEvent(&event);
1951 filt_in = is->in_video_filter;
1952 filt_out = is->out_video_filter;
1953 last_w = frame->width;
1954 last_h = frame->height;
1955 last_format = frame->format;
1956 last_serial = serial;
1957 frame_rate = filt_out->inputs[0]->frame_rate;
1960 ret = av_buffersrc_add_frame(filt_in, frame);
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;
1978 tb = filt_out->inputs[0]->time_base;
1980 duration = (frame_rate.num && frame_rate.den ? av_q2d((AVRational){frame_rate.den, frame_rate.num}) : 0);
1981 pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb);
1982 ret = queue_picture(is, frame, pts, duration, av_frame_get_pkt_pos(frame), serial);
1983 av_frame_unref(frame);
1993 avfilter_graph_free(&graph);
1995 av_free_packet(&pkt);
1996 av_frame_free(&frame);
2000 static int subtitle_thread(void *arg)
2002 VideoState *is = arg;
2004 AVPacket pkt1, *pkt = &pkt1;
2009 int r, g, b, y, u, v, a;
2012 while (is->paused && !is->subtitleq.abort_request) {
2015 if (packet_queue_get(&is->subtitleq, pkt, 1, &serial) < 0)
2018 if (pkt->data == flush_pkt.data) {
2019 avcodec_flush_buffers(is->subtitle_st->codec);
2022 SDL_LockMutex(is->subpq_mutex);
2023 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
2024 !is->subtitleq.abort_request) {
2025 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
2027 SDL_UnlockMutex(is->subpq_mutex);
2029 if (is->subtitleq.abort_request)
2032 sp = &is->subpq[is->subpq_windex];
2034 /* NOTE: ipts is the PTS of the _first_ picture beginning in
2035 this packet, if any */
2037 if (pkt->pts != AV_NOPTS_VALUE)
2038 pts = av_q2d(is->subtitle_st->time_base) * pkt->pts;
2040 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
2041 &got_subtitle, pkt);
2042 if (got_subtitle && sp->sub.format == 0) {
2043 if (sp->sub.pts != AV_NOPTS_VALUE)
2044 pts = sp->sub.pts / (double)AV_TIME_BASE;
2046 sp->serial = serial;
2048 for (i = 0; i < sp->sub.num_rects; i++)
2050 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
2052 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
2053 y = RGB_TO_Y_CCIR(r, g, b);
2054 u = RGB_TO_U_CCIR(r, g, b, 0);
2055 v = RGB_TO_V_CCIR(r, g, b, 0);
2056 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
2060 /* now we can update the picture count */
2061 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
2062 is->subpq_windex = 0;
2063 SDL_LockMutex(is->subpq_mutex);
2065 SDL_UnlockMutex(is->subpq_mutex);
2066 } else if (got_subtitle) {
2067 avsubtitle_free(&sp->sub);
2069 av_free_packet(pkt);
2074 /* copy samples for viewing in editor window */
2075 static void update_sample_display(VideoState *is, short *samples, int samples_size)
2079 size = samples_size / sizeof(short);
2081 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
2084 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
2086 is->sample_array_index += len;
2087 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
2088 is->sample_array_index = 0;
2093 /* return the wanted number of samples to get better sync if sync_type is video
2094 * or external master clock */
2095 static int synchronize_audio(VideoState *is, int nb_samples)
2097 int wanted_nb_samples = nb_samples;
2099 /* if not master, then we try to remove or add samples to correct the clock */
2100 if (get_master_sync_type(is) != AV_SYNC_AUDIO_MASTER) {
2101 double diff, avg_diff;
2102 int min_nb_samples, max_nb_samples;
2104 diff = get_clock(&is->audclk) - get_master_clock(is);
2106 if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD) {
2107 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2108 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2109 /* not enough measures to have a correct estimate */
2110 is->audio_diff_avg_count++;
2112 /* estimate the A-V difference */
2113 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2115 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2116 wanted_nb_samples = nb_samples + (int)(diff * is->audio_src.freq);
2117 min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100));
2118 max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100));
2119 wanted_nb_samples = FFMIN(FFMAX(wanted_nb_samples, min_nb_samples), max_nb_samples);
2121 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f %f\n",
2122 diff, avg_diff, wanted_nb_samples - nb_samples,
2123 is->audio_clock, is->audio_diff_threshold);
2126 /* too big difference : may be initial PTS errors, so
2128 is->audio_diff_avg_count = 0;
2129 is->audio_diff_cum = 0;
2133 return wanted_nb_samples;
2137 * Decode one audio frame and return its uncompressed size.
2139 * The processed audio frame is decoded, converted if required, and
2140 * stored in is->audio_buf, with size in bytes given by the return
2143 static int audio_decode_frame(VideoState *is)
2145 AVPacket *pkt_temp = &is->audio_pkt_temp;
2146 AVPacket *pkt = &is->audio_pkt;
2147 AVCodecContext *dec = is->audio_st->codec;
2148 int len1, data_size, resampled_data_size;
2149 int64_t dec_channel_layout;
2151 av_unused double audio_clock0;
2152 int wanted_nb_samples;
2158 /* NOTE: the audio packet can contain several frames */
2159 while (pkt_temp->stream_index != -1 || is->audio_buf_frames_pending) {
2161 if (!(is->frame = av_frame_alloc()))
2162 return AVERROR(ENOMEM);
2164 av_frame_unref(is->frame);
2167 if (is->audioq.serial != is->audio_pkt_temp_serial)
2173 if (!is->audio_buf_frames_pending) {
2174 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
2176 /* if error, we skip the frame */
2182 pkt_temp->pts = AV_NOPTS_VALUE;
2183 pkt_temp->data += len1;
2184 pkt_temp->size -= len1;
2185 if (pkt_temp->data && pkt_temp->size <= 0 || !pkt_temp->data && !got_frame)
2186 pkt_temp->stream_index = -1;
2187 if (!pkt_temp->data && !got_frame)
2188 is->audio_finished = is->audio_pkt_temp_serial;
2193 tb = (AVRational){1, is->frame->sample_rate};
2194 if (is->frame->pts != AV_NOPTS_VALUE)
2195 is->frame->pts = av_rescale_q(is->frame->pts, dec->time_base, tb);
2196 else if (is->frame->pkt_pts != AV_NOPTS_VALUE)
2197 is->frame->pts = av_rescale_q(is->frame->pkt_pts, is->audio_st->time_base, tb);
2198 else if (is->audio_frame_next_pts != AV_NOPTS_VALUE)
2200 is->frame->pts = av_rescale_q(is->audio_frame_next_pts, (AVRational){1, is->audio_filter_src.freq}, tb);
2202 is->frame->pts = av_rescale_q(is->audio_frame_next_pts, (AVRational){1, is->audio_src.freq}, tb);
2205 if (is->frame->pts != AV_NOPTS_VALUE)
2206 is->audio_frame_next_pts = is->frame->pts + is->frame->nb_samples;
2209 dec_channel_layout = get_valid_channel_layout(is->frame->channel_layout, av_frame_get_channels(is->frame));
2212 cmp_audio_fmts(is->audio_filter_src.fmt, is->audio_filter_src.channels,
2213 is->frame->format, av_frame_get_channels(is->frame)) ||
2214 is->audio_filter_src.channel_layout != dec_channel_layout ||
2215 is->audio_filter_src.freq != is->frame->sample_rate ||
2216 is->audio_pkt_temp_serial != is->audio_last_serial;
2219 char buf1[1024], buf2[1024];
2220 av_get_channel_layout_string(buf1, sizeof(buf1), -1, is->audio_filter_src.channel_layout);
2221 av_get_channel_layout_string(buf2, sizeof(buf2), -1, dec_channel_layout);
2222 av_log(NULL, AV_LOG_DEBUG,
2223 "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",
2224 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,
2225 is->frame->sample_rate, av_frame_get_channels(is->frame), av_get_sample_fmt_name(is->frame->format), buf2, is->audio_pkt_temp_serial);
2227 is->audio_filter_src.fmt = is->frame->format;
2228 is->audio_filter_src.channels = av_frame_get_channels(is->frame);
2229 is->audio_filter_src.channel_layout = dec_channel_layout;
2230 is->audio_filter_src.freq = is->frame->sample_rate;
2231 is->audio_last_serial = is->audio_pkt_temp_serial;
2233 if ((ret = configure_audio_filters(is, afilters, 1)) < 0)
2237 if ((ret = av_buffersrc_add_frame(is->in_audio_filter, is->frame)) < 0)
2242 if ((ret = av_buffersink_get_frame_flags(is->out_audio_filter, is->frame, 0)) < 0) {
2243 if (ret == AVERROR(EAGAIN)) {
2244 is->audio_buf_frames_pending = 0;
2247 if (ret == AVERROR_EOF)
2248 is->audio_finished = is->audio_pkt_temp_serial;
2251 is->audio_buf_frames_pending = 1;
2252 tb = is->out_audio_filter->inputs[0]->time_base;
2255 data_size = av_samples_get_buffer_size(NULL, av_frame_get_channels(is->frame),
2256 is->frame->nb_samples,
2257 is->frame->format, 1);
2259 dec_channel_layout =
2260 (is->frame->channel_layout && av_frame_get_channels(is->frame) == av_get_channel_layout_nb_channels(is->frame->channel_layout)) ?
2261 is->frame->channel_layout : av_get_default_channel_layout(av_frame_get_channels(is->frame));
2262 wanted_nb_samples = synchronize_audio(is, is->frame->nb_samples);
2264 if (is->frame->format != is->audio_src.fmt ||
2265 dec_channel_layout != is->audio_src.channel_layout ||
2266 is->frame->sample_rate != is->audio_src.freq ||
2267 (wanted_nb_samples != is->frame->nb_samples && !is->swr_ctx)) {
2268 swr_free(&is->swr_ctx);
2269 is->swr_ctx = swr_alloc_set_opts(NULL,
2270 is->audio_tgt.channel_layout, is->audio_tgt.fmt, is->audio_tgt.freq,
2271 dec_channel_layout, is->frame->format, is->frame->sample_rate,
2273 if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
2274 av_log(NULL, AV_LOG_ERROR,
2275 "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
2276 is->frame->sample_rate, av_get_sample_fmt_name(is->frame->format), av_frame_get_channels(is->frame),
2277 is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels);
2280 is->audio_src.channel_layout = dec_channel_layout;
2281 is->audio_src.channels = av_frame_get_channels(is->frame);
2282 is->audio_src.freq = is->frame->sample_rate;
2283 is->audio_src.fmt = is->frame->format;
2287 const uint8_t **in = (const uint8_t **)is->frame->extended_data;
2288 uint8_t **out = &is->audio_buf1;
2289 int out_count = (int64_t)wanted_nb_samples * is->audio_tgt.freq / is->frame->sample_rate + 256;
2290 int out_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, out_count, is->audio_tgt.fmt, 0);
2293 av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size() failed\n");
2296 if (wanted_nb_samples != is->frame->nb_samples) {
2297 if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - is->frame->nb_samples) * is->audio_tgt.freq / is->frame->sample_rate,
2298 wanted_nb_samples * is->audio_tgt.freq / is->frame->sample_rate) < 0) {
2299 av_log(NULL, AV_LOG_ERROR, "swr_set_compensation() failed\n");
2303 av_fast_malloc(&is->audio_buf1, &is->audio_buf1_size, out_size);
2304 if (!is->audio_buf1)
2305 return AVERROR(ENOMEM);
2306 len2 = swr_convert(is->swr_ctx, out, out_count, in, is->frame->nb_samples);
2308 av_log(NULL, AV_LOG_ERROR, "swr_convert() failed\n");
2311 if (len2 == out_count) {
2312 av_log(NULL, AV_LOG_WARNING, "audio buffer is probably too small\n");
2313 swr_init(is->swr_ctx);
2315 is->audio_buf = is->audio_buf1;
2316 resampled_data_size = len2 * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
2318 is->audio_buf = is->frame->data[0];
2319 resampled_data_size = data_size;
2322 audio_clock0 = is->audio_clock;
2323 /* update the audio clock with the pts */
2324 if (is->frame->pts != AV_NOPTS_VALUE)
2325 is->audio_clock = is->frame->pts * av_q2d(tb) + (double) is->frame->nb_samples / is->frame->sample_rate;
2327 is->audio_clock = NAN;
2328 is->audio_clock_serial = is->audio_pkt_temp_serial;
2331 static double last_clock;
2332 printf("audio: delay=%0.3f clock=%0.3f clock0=%0.3f\n",
2333 is->audio_clock - last_clock,
2334 is->audio_clock, audio_clock0);
2335 last_clock = is->audio_clock;
2338 return resampled_data_size;
2341 /* free the current packet */
2343 av_free_packet(pkt);
2344 memset(pkt_temp, 0, sizeof(*pkt_temp));
2345 pkt_temp->stream_index = -1;
2347 if (is->audioq.abort_request) {
2351 if (is->audioq.nb_packets == 0)
2352 SDL_CondSignal(is->continue_read_thread);
2354 /* read next packet */
2355 if ((packet_queue_get(&is->audioq, pkt, 1, &is->audio_pkt_temp_serial)) < 0)
2358 if (pkt->data == flush_pkt.data) {
2359 avcodec_flush_buffers(dec);
2360 is->audio_buf_frames_pending = 0;
2361 is->audio_frame_next_pts = AV_NOPTS_VALUE;
2362 if ((is->ic->iformat->flags & (AVFMT_NOBINSEARCH | AVFMT_NOGENSEARCH | AVFMT_NO_BYTE_SEEK)) && !is->ic->iformat->read_seek)
2363 is->audio_frame_next_pts = is->audio_st->start_time;
2370 /* prepare a new audio buffer */
2371 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2373 VideoState *is = opaque;
2374 int audio_size, len1;
2376 audio_callback_time = av_gettime();
2379 if (is->audio_buf_index >= is->audio_buf_size) {
2380 audio_size = audio_decode_frame(is);
2381 if (audio_size < 0) {
2382 /* if error, just output silence */
2383 is->audio_buf = is->silence_buf;
2384 is->audio_buf_size = sizeof(is->silence_buf) / is->audio_tgt.frame_size * is->audio_tgt.frame_size;
2386 if (is->show_mode != SHOW_MODE_VIDEO)
2387 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2388 is->audio_buf_size = audio_size;
2390 is->audio_buf_index = 0;
2392 len1 = is->audio_buf_size - is->audio_buf_index;
2395 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2398 is->audio_buf_index += len1;
2400 is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
2401 /* Let's assume the audio driver that is used by SDL has two periods. */
2402 if (!isnan(is->audio_clock)) {
2403 set_clock_at(&is->audclk, is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / is->audio_tgt.bytes_per_sec, is->audio_clock_serial, audio_callback_time / 1000000.0);
2404 sync_clock_to_slave(&is->extclk, &is->audclk);
2408 static int audio_open(void *opaque, int64_t wanted_channel_layout, int wanted_nb_channels, int wanted_sample_rate, struct AudioParams *audio_hw_params)
2410 SDL_AudioSpec wanted_spec, spec;
2412 static const int next_nb_channels[] = {0, 0, 1, 6, 2, 6, 4, 6};
2414 env = SDL_getenv("SDL_AUDIO_CHANNELS");
2416 wanted_nb_channels = atoi(env);
2417 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2419 if (!wanted_channel_layout || wanted_nb_channels != av_get_channel_layout_nb_channels(wanted_channel_layout)) {
2420 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2421 wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX;
2423 wanted_spec.channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
2424 wanted_spec.freq = wanted_sample_rate;
2425 if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) {
2426 av_log(NULL, AV_LOG_ERROR, "Invalid sample rate or channel count!\n");
2429 wanted_spec.format = AUDIO_S16SYS;
2430 wanted_spec.silence = 0;
2431 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2432 wanted_spec.callback = sdl_audio_callback;
2433 wanted_spec.userdata = opaque;
2434 while (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2435 av_log(NULL, AV_LOG_WARNING, "SDL_OpenAudio (%d channels): %s\n", wanted_spec.channels, SDL_GetError());
2436 wanted_spec.channels = next_nb_channels[FFMIN(7, wanted_spec.channels)];
2437 if (!wanted_spec.channels) {
2438 av_log(NULL, AV_LOG_ERROR,
2439 "No more channel combinations to try, audio open failed\n");
2442 wanted_channel_layout = av_get_default_channel_layout(wanted_spec.channels);
2444 if (spec.format != AUDIO_S16SYS) {
2445 av_log(NULL, AV_LOG_ERROR,
2446 "SDL advised audio format %d is not supported!\n", spec.format);
2449 if (spec.channels != wanted_spec.channels) {
2450 wanted_channel_layout = av_get_default_channel_layout(spec.channels);
2451 if (!wanted_channel_layout) {
2452 av_log(NULL, AV_LOG_ERROR,
2453 "SDL advised channel count %d is not supported!\n", spec.channels);
2458 audio_hw_params->fmt = AV_SAMPLE_FMT_S16;
2459 audio_hw_params->freq = spec.freq;
2460 audio_hw_params->channel_layout = wanted_channel_layout;
2461 audio_hw_params->channels = spec.channels;
2462 audio_hw_params->frame_size = av_samples_get_buffer_size(NULL, audio_hw_params->channels, 1, audio_hw_params->fmt, 1);
2463 audio_hw_params->bytes_per_sec = av_samples_get_buffer_size(NULL, audio_hw_params->channels, audio_hw_params->freq, audio_hw_params->fmt, 1);
2464 if (audio_hw_params->bytes_per_sec <= 0 || audio_hw_params->frame_size <= 0) {
2465 av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size failed\n");
2471 /* open a given stream. Return 0 if OK */
2472 static int stream_component_open(VideoState *is, int stream_index)
2474 AVFormatContext *ic = is->ic;
2475 AVCodecContext *avctx;
2477 const char *forced_codec_name = NULL;
2479 AVDictionaryEntry *t = NULL;
2480 int sample_rate, nb_channels;
2481 int64_t channel_layout;
2483 int stream_lowres = lowres;
2485 if (stream_index < 0 || stream_index >= ic->nb_streams)
2487 avctx = ic->streams[stream_index]->codec;
2489 codec = avcodec_find_decoder(avctx->codec_id);
2491 switch(avctx->codec_type){
2492 case AVMEDIA_TYPE_AUDIO : is->last_audio_stream = stream_index; forced_codec_name = audio_codec_name; break;
2493 case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; forced_codec_name = subtitle_codec_name; break;
2494 case AVMEDIA_TYPE_VIDEO : is->last_video_stream = stream_index; forced_codec_name = video_codec_name; break;
2496 if (forced_codec_name)
2497 codec = avcodec_find_decoder_by_name(forced_codec_name);
2499 if (forced_codec_name) av_log(NULL, AV_LOG_WARNING,
2500 "No codec could be found with name '%s'\n", forced_codec_name);
2501 else av_log(NULL, AV_LOG_WARNING,
2502 "No codec could be found with id %d\n", avctx->codec_id);
2506 avctx->codec_id = codec->id;
2507 avctx->workaround_bugs = workaround_bugs;
2508 if(stream_lowres > av_codec_get_max_lowres(codec)){
2509 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
2510 av_codec_get_max_lowres(codec));
2511 stream_lowres = av_codec_get_max_lowres(codec);
2513 av_codec_set_lowres(avctx, stream_lowres);
2514 avctx->error_concealment = error_concealment;
2516 if(stream_lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2517 if (fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2518 if(codec->capabilities & CODEC_CAP_DR1)
2519 avctx->flags |= CODEC_FLAG_EMU_EDGE;
2521 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec);
2522 if (!av_dict_get(opts, "threads", NULL, 0))
2523 av_dict_set(&opts, "threads", "auto", 0);
2525 av_dict_set(&opts, "lowres", av_asprintf("%d", stream_lowres), AV_DICT_DONT_STRDUP_VAL);
2526 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
2527 av_dict_set(&opts, "refcounted_frames", "1", 0);
2528 if (avcodec_open2(avctx, codec, &opts) < 0)
2530 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2531 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2532 return AVERROR_OPTION_NOT_FOUND;
2535 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2536 switch (avctx->codec_type) {
2537 case AVMEDIA_TYPE_AUDIO:
2542 is->audio_filter_src.freq = avctx->sample_rate;
2543 is->audio_filter_src.channels = avctx->channels;
2544 is->audio_filter_src.channel_layout = get_valid_channel_layout(avctx->channel_layout, avctx->channels);
2545 is->audio_filter_src.fmt = avctx->sample_fmt;
2546 if ((ret = configure_audio_filters(is, afilters, 0)) < 0)
2548 link = is->out_audio_filter->inputs[0];
2549 sample_rate = link->sample_rate;
2550 nb_channels = link->channels;
2551 channel_layout = link->channel_layout;
2554 sample_rate = avctx->sample_rate;
2555 nb_channels = avctx->channels;
2556 channel_layout = avctx->channel_layout;
2559 /* prepare audio output */
2560 if ((ret = audio_open(is, channel_layout, nb_channels, sample_rate, &is->audio_tgt)) < 0)
2562 is->audio_hw_buf_size = ret;
2563 is->audio_src = is->audio_tgt;
2564 is->audio_buf_size = 0;
2565 is->audio_buf_index = 0;
2567 /* init averaging filter */
2568 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2569 is->audio_diff_avg_count = 0;
2570 /* since we do not have a precise anough audio fifo fullness,
2571 we correct audio sync only if larger than this threshold */
2572 is->audio_diff_threshold = 2.0 * is->audio_hw_buf_size / is->audio_tgt.bytes_per_sec;
2574 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2575 memset(&is->audio_pkt_temp, 0, sizeof(is->audio_pkt_temp));
2576 is->audio_pkt_temp.stream_index = -1;
2578 is->audio_stream = stream_index;
2579 is->audio_st = ic->streams[stream_index];
2581 packet_queue_start(&is->audioq);
2584 case AVMEDIA_TYPE_VIDEO:
2585 is->video_stream = stream_index;
2586 is->video_st = ic->streams[stream_index];
2588 packet_queue_start(&is->videoq);
2589 is->video_tid = SDL_CreateThread(video_thread, is);
2590 is->queue_attachments_req = 1;
2592 case AVMEDIA_TYPE_SUBTITLE:
2593 is->subtitle_stream = stream_index;
2594 is->subtitle_st = ic->streams[stream_index];
2595 packet_queue_start(&is->subtitleq);
2597 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2605 static void stream_component_close(VideoState *is, int stream_index)
2607 AVFormatContext *ic = is->ic;
2608 AVCodecContext *avctx;
2610 if (stream_index < 0 || stream_index >= ic->nb_streams)
2612 avctx = ic->streams[stream_index]->codec;
2614 switch (avctx->codec_type) {
2615 case AVMEDIA_TYPE_AUDIO:
2616 packet_queue_abort(&is->audioq);
2620 packet_queue_flush(&is->audioq);
2621 av_free_packet(&is->audio_pkt);
2622 swr_free(&is->swr_ctx);
2623 av_freep(&is->audio_buf1);
2624 is->audio_buf1_size = 0;
2625 is->audio_buf = NULL;
2626 av_frame_free(&is->frame);
2629 av_rdft_end(is->rdft);
2630 av_freep(&is->rdft_data);
2635 avfilter_graph_free(&is->agraph);
2638 case AVMEDIA_TYPE_VIDEO:
2639 packet_queue_abort(&is->videoq);
2641 /* note: we also signal this mutex to make sure we deblock the
2642 video thread in all cases */
2643 SDL_LockMutex(is->pictq_mutex);
2644 SDL_CondSignal(is->pictq_cond);
2645 SDL_UnlockMutex(is->pictq_mutex);
2647 SDL_WaitThread(is->video_tid, NULL);
2649 packet_queue_flush(&is->videoq);
2651 case AVMEDIA_TYPE_SUBTITLE:
2652 packet_queue_abort(&is->subtitleq);
2654 /* note: we also signal this mutex to make sure we deblock the
2655 video thread in all cases */
2656 SDL_LockMutex(is->subpq_mutex);
2657 SDL_CondSignal(is->subpq_cond);
2658 SDL_UnlockMutex(is->subpq_mutex);
2660 SDL_WaitThread(is->subtitle_tid, NULL);
2662 packet_queue_flush(&is->subtitleq);
2668 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2669 avcodec_close(avctx);
2670 switch (avctx->codec_type) {
2671 case AVMEDIA_TYPE_AUDIO:
2672 is->audio_st = NULL;
2673 is->audio_stream = -1;
2675 case AVMEDIA_TYPE_VIDEO:
2676 is->video_st = NULL;
2677 is->video_stream = -1;
2679 case AVMEDIA_TYPE_SUBTITLE:
2680 is->subtitle_st = NULL;
2681 is->subtitle_stream = -1;
2688 static int decode_interrupt_cb(void *ctx)
2690 VideoState *is = ctx;
2691 return is->abort_request;
2694 static int is_realtime(AVFormatContext *s)
2696 if( !strcmp(s->iformat->name, "rtp")
2697 || !strcmp(s->iformat->name, "rtsp")
2698 || !strcmp(s->iformat->name, "sdp")
2702 if(s->pb && ( !strncmp(s->filename, "rtp:", 4)
2703 || !strncmp(s->filename, "udp:", 4)
2710 /* this thread gets the stream from the disk or the network */
2711 static int read_thread(void *arg)
2713 VideoState *is = arg;
2714 AVFormatContext *ic = NULL;
2716 int st_index[AVMEDIA_TYPE_NB];
2717 AVPacket pkt1, *pkt = &pkt1;
2719 int64_t stream_start_time;
2720 int pkt_in_play_range = 0;
2721 AVDictionaryEntry *t;
2722 AVDictionary **opts;
2723 int orig_nb_streams;
2724 SDL_mutex *wait_mutex = SDL_CreateMutex();
2726 memset(st_index, -1, sizeof(st_index));
2727 is->last_video_stream = is->video_stream = -1;
2728 is->last_audio_stream = is->audio_stream = -1;
2729 is->last_subtitle_stream = is->subtitle_stream = -1;
2731 ic = avformat_alloc_context();
2732 ic->interrupt_callback.callback = decode_interrupt_cb;
2733 ic->interrupt_callback.opaque = is;
2734 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2736 print_error(is->filename, err);
2740 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2741 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2742 ret = AVERROR_OPTION_NOT_FOUND;
2748 ic->flags |= AVFMT_FLAG_GENPTS;
2750 opts = setup_find_stream_info_opts(ic, codec_opts);
2751 orig_nb_streams = ic->nb_streams;
2753 err = avformat_find_stream_info(ic, opts);
2755 av_log(NULL, AV_LOG_WARNING,
2756 "%s: could not find codec parameters\n", is->filename);
2760 for (i = 0; i < orig_nb_streams; i++)
2761 av_dict_free(&opts[i]);
2765 ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
2767 if (seek_by_bytes < 0)
2768 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT) && strcmp("ogg", ic->iformat->name);
2770 is->max_frame_duration = (ic->iformat->flags & AVFMT_TS_DISCONT) ? 10.0 : 3600.0;
2772 if (!window_title && (t = av_dict_get(ic->metadata, "title", NULL, 0)))
2773 window_title = av_asprintf("%s - %s", t->value, input_filename);
2775 /* if seeking requested, we execute it */
2776 if (start_time != AV_NOPTS_VALUE) {
2779 timestamp = start_time;
2780 /* add the stream start time */
2781 if (ic->start_time != AV_NOPTS_VALUE)
2782 timestamp += ic->start_time;
2783 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2785 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
2786 is->filename, (double)timestamp / AV_TIME_BASE);
2790 is->realtime = is_realtime(ic);
2792 for (i = 0; i < ic->nb_streams; i++)
2793 ic->streams[i]->discard = AVDISCARD_ALL;
2795 st_index[AVMEDIA_TYPE_VIDEO] =
2796 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2797 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2799 st_index[AVMEDIA_TYPE_AUDIO] =
2800 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2801 wanted_stream[AVMEDIA_TYPE_AUDIO],
2802 st_index[AVMEDIA_TYPE_VIDEO],
2804 if (!video_disable && !subtitle_disable)
2805 st_index[AVMEDIA_TYPE_SUBTITLE] =
2806 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2807 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2808 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2809 st_index[AVMEDIA_TYPE_AUDIO] :
2810 st_index[AVMEDIA_TYPE_VIDEO]),
2813 av_dump_format(ic, 0, is->filename, 0);
2816 is->show_mode = show_mode;
2817 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2818 AVStream *st = ic->streams[st_index[AVMEDIA_TYPE_VIDEO]];
2819 AVCodecContext *avctx = st->codec;
2820 VideoPicture vp = {.width = avctx->width, .height = avctx->height, .sar = av_guess_sample_aspect_ratio(ic, st, NULL)};
2822 set_default_window_size(&vp);
2825 /* open the streams */
2826 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2827 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2831 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2832 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2834 if (is->show_mode == SHOW_MODE_NONE)
2835 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2837 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2838 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2841 if (is->video_stream < 0 && is->audio_stream < 0) {
2842 av_log(NULL, AV_LOG_FATAL, "Failed to open file '%s' or configure filtergraph\n",
2848 if (infinite_buffer < 0 && is->realtime)
2849 infinite_buffer = 1;
2852 if (is->abort_request)
2854 if (is->paused != is->last_paused) {
2855 is->last_paused = is->paused;
2857 is->read_pause_return = av_read_pause(ic);
2861 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
2863 (!strcmp(ic->iformat->name, "rtsp") ||
2864 (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) {
2865 /* wait 10 ms to avoid trying to get another packet */
2872 int64_t seek_target = is->seek_pos;
2873 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2874 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2875 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2876 // of the seek_pos/seek_rel variables
2878 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2880 av_log(NULL, AV_LOG_ERROR,
2881 "%s: error while seeking\n", is->ic->filename);
2883 if (is->audio_stream >= 0) {
2884 packet_queue_flush(&is->audioq);
2885 packet_queue_put(&is->audioq, &flush_pkt);
2887 if (is->subtitle_stream >= 0) {
2888 packet_queue_flush(&is->subtitleq);
2889 packet_queue_put(&is->subtitleq, &flush_pkt);
2891 if (is->video_stream >= 0) {
2892 packet_queue_flush(&is->videoq);
2893 packet_queue_put(&is->videoq, &flush_pkt);
2895 if (is->seek_flags & AVSEEK_FLAG_BYTE) {
2896 set_clock(&is->extclk, NAN, 0);
2898 set_clock(&is->extclk, seek_target / (double)AV_TIME_BASE, 0);
2902 is->queue_attachments_req = 1;
2905 step_to_next_frame(is);
2907 if (is->queue_attachments_req) {
2908 if (is->video_st && is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC) {
2910 if ((ret = av_copy_packet(©, &is->video_st->attached_pic)) < 0)
2912 packet_queue_put(&is->videoq, ©);
2913 packet_queue_put_nullpacket(&is->videoq, is->video_stream);
2915 is->queue_attachments_req = 0;
2918 /* if the queue are full, no need to read more */
2919 if (infinite_buffer<1 &&
2920 (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2921 || ( (is->audioq .nb_packets > MIN_FRAMES || is->audio_stream < 0 || is->audioq.abort_request)
2922 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0 || is->videoq.abort_request
2923 || (is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC))
2924 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0 || is->subtitleq.abort_request)))) {
2926 SDL_LockMutex(wait_mutex);
2927 SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
2928 SDL_UnlockMutex(wait_mutex);
2932 (!is->audio_st || is->audio_finished == is->audioq.serial) &&
2933 (!is->video_st || (is->video_finished == is->videoq.serial && is->pictq_size == 0))) {
2934 if (loop != 1 && (!loop || --loop)) {
2935 stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2936 } else if (autoexit) {
2942 if (is->video_stream >= 0)
2943 packet_queue_put_nullpacket(&is->videoq, is->video_stream);
2944 if (is->audio_stream >= 0)
2945 packet_queue_put_nullpacket(&is->audioq, is->audio_stream);
2950 ret = av_read_frame(ic, pkt);
2952 if (ret == AVERROR_EOF || url_feof(ic->pb))
2954 if (ic->pb && ic->pb->error)
2956 SDL_LockMutex(wait_mutex);
2957 SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
2958 SDL_UnlockMutex(wait_mutex);
2961 /* check if packet is in play range specified by user, then queue, otherwise discard */
2962 stream_start_time = ic->streams[pkt->stream_index]->start_time;
2963 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2964 (pkt->pts - (stream_start_time != AV_NOPTS_VALUE ? stream_start_time : 0)) *
2965 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2966 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2967 <= ((double)duration / 1000000);
2968 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2969 packet_queue_put(&is->audioq, pkt);
2970 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range
2971 && !(is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC)) {
2972 packet_queue_put(&is->videoq, pkt);
2973 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2974 packet_queue_put(&is->subtitleq, pkt);
2976 av_free_packet(pkt);
2979 /* wait until the end */
2980 while (!is->abort_request) {
2986 /* close each stream */
2987 if (is->audio_stream >= 0)
2988 stream_component_close(is, is->audio_stream);
2989 if (is->video_stream >= 0)
2990 stream_component_close(is, is->video_stream);
2991 if (is->subtitle_stream >= 0)
2992 stream_component_close(is, is->subtitle_stream);
2994 avformat_close_input(&is->ic);
3000 event.type = FF_QUIT_EVENT;
3001 event.user.data1 = is;
3002 SDL_PushEvent(&event);
3004 SDL_DestroyMutex(wait_mutex);
3008 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
3012 is = av_mallocz(sizeof(VideoState));
3015 av_strlcpy(is->filename, filename, sizeof(is->filename));
3016 is->iformat = iformat;
3020 /* start video display */
3021 is->pictq_mutex = SDL_CreateMutex();
3022 is->pictq_cond = SDL_CreateCond();
3024 is->subpq_mutex = SDL_CreateMutex();
3025 is->subpq_cond = SDL_CreateCond();
3027 packet_queue_init(&is->videoq);
3028 packet_queue_init(&is->audioq);
3029 packet_queue_init(&is->subtitleq);
3031 is->continue_read_thread = SDL_CreateCond();
3033 init_clock(&is->vidclk, &is->videoq.serial);
3034 init_clock(&is->audclk, &is->audioq.serial);
3035 init_clock(&is->extclk, &is->extclk.serial);
3036 is->audio_clock_serial = -1;
3037 is->audio_last_serial = -1;
3038 is->av_sync_type = av_sync_type;
3039 is->read_tid = SDL_CreateThread(read_thread, is);
3040 if (!is->read_tid) {
3047 static void stream_cycle_channel(VideoState *is, int codec_type)
3049 AVFormatContext *ic = is->ic;
3050 int start_index, stream_index;
3053 AVProgram *p = NULL;
3054 int nb_streams = is->ic->nb_streams;
3056 if (codec_type == AVMEDIA_TYPE_VIDEO) {
3057 start_index = is->last_video_stream;
3058 old_index = is->video_stream;
3059 } else if (codec_type == AVMEDIA_TYPE_AUDIO) {
3060 start_index = is->last_audio_stream;
3061 old_index = is->audio_stream;
3063 start_index = is->last_subtitle_stream;
3064 old_index = is->subtitle_stream;
3066 stream_index = start_index;
3068 if (codec_type != AVMEDIA_TYPE_VIDEO && is->video_stream != -1) {
3069 p = av_find_program_from_stream(ic, NULL, is->video_stream);
3071 nb_streams = p->nb_stream_indexes;
3072 for (start_index = 0; start_index < nb_streams; start_index++)
3073 if (p->stream_index[start_index] == stream_index)
3075 if (start_index == nb_streams)
3077 stream_index = start_index;
3082 if (++stream_index >= nb_streams)
3084 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
3087 is->last_subtitle_stream = -1;
3090 if (start_index == -1)
3094 if (stream_index == start_index)
3096 st = is->ic->streams[p ? p->stream_index[stream_index] : stream_index];
3097 if (st->codec->codec_type == codec_type) {
3098 /* check that parameters are OK */
3099 switch (codec_type) {
3100 case AVMEDIA_TYPE_AUDIO:
3101 if (st->codec->sample_rate != 0 &&
3102 st->codec->channels != 0)
3105 case AVMEDIA_TYPE_VIDEO:
3106 case AVMEDIA_TYPE_SUBTITLE:
3114 if (p && stream_index != -1)
3115 stream_index = p->stream_index[stream_index];
3116 stream_component_close(is, old_index);
3117 stream_component_open(is, stream_index);
3121 static void toggle_full_screen(VideoState *is)
3123 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
3124 /* OS X needs to reallocate the SDL overlays */
3126 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++)
3127 is->pictq[i].reallocate = 1;
3129 is_full_screen = !is_full_screen;
3130 video_open(is, 1, NULL);
3133 static void toggle_audio_display(VideoState *is)
3135 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
3136 int next = is->show_mode;
3138 next = (next + 1) % SHOW_MODE_NB;
3139 } while (next != is->show_mode && (next == SHOW_MODE_VIDEO && !is->video_st || next != SHOW_MODE_VIDEO && !is->audio_st));
3140 if (is->show_mode != next) {
3141 fill_rectangle(screen,
3142 is->xleft, is->ytop, is->width, is->height,
3144 is->force_refresh = 1;
3145 is->show_mode = next;
3149 static void refresh_loop_wait_event(VideoState *is, SDL_Event *event) {
3150 double remaining_time = 0.0;
3152 while (!SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS)) {
3153 if (!cursor_hidden && av_gettime() - cursor_last_shown > CURSOR_HIDE_DELAY) {
3157 if (remaining_time > 0.0)
3158 av_usleep((int64_t)(remaining_time * 1000000.0));
3159 remaining_time = REFRESH_RATE;
3160 if (is->show_mode != SHOW_MODE_NONE && (!is->paused || is->force_refresh))
3161 video_refresh(is, &remaining_time);
3166 /* handle an event sent by the GUI */
3167 static void event_loop(VideoState *cur_stream)
3170 double incr, pos, frac;
3174 refresh_loop_wait_event(cur_stream, &event);
3175 switch (event.type) {
3177 if (exit_on_keydown) {
3178 do_exit(cur_stream);
3181 switch (event.key.keysym.sym) {
3184 do_exit(cur_stream);
3187 toggle_full_screen(cur_stream);
3188 cur_stream->force_refresh = 1;
3192 toggle_pause(cur_stream);
3194 case SDLK_s: // S: Step to next frame
3195 step_to_next_frame(cur_stream);
3198 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
3201 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
3204 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
3205 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
3206 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
3209 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
3212 toggle_audio_display(cur_stream);
3232 if (seek_by_bytes) {
3233 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) {
3234 pos = cur_stream->video_current_pos;
3235 } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) {
3236 pos = cur_stream->audio_pkt.pos;
3238 pos = avio_tell(cur_stream->ic->pb);
3239 if (cur_stream->ic->bit_rate)
3240 incr *= cur_stream->ic->bit_rate / 8.0;
3244 stream_seek(cur_stream, pos, incr, 1);
3246 pos = get_master_clock(cur_stream);
3248 pos = (double)cur_stream->seek_pos / AV_TIME_BASE;
3250 if (cur_stream->ic->start_time != AV_NOPTS_VALUE && pos < cur_stream->ic->start_time / (double)AV_TIME_BASE)
3251 pos = cur_stream->ic->start_time / (double)AV_TIME_BASE;
3252 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
3259 case SDL_VIDEOEXPOSE:
3260 cur_stream->force_refresh = 1;
3262 case SDL_MOUSEBUTTONDOWN:
3263 if (exit_on_mousedown) {
3264 do_exit(cur_stream);
3267 case SDL_MOUSEMOTION:
3268 if (cursor_hidden) {
3272 cursor_last_shown = av_gettime();
3273 if (event.type == SDL_MOUSEBUTTONDOWN) {
3276 if (event.motion.state != SDL_PRESSED)
3280 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
3281 uint64_t size = avio_size(cur_stream->ic->pb);
3282 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
3286 int tns, thh, tmm, tss;
3287 tns = cur_stream->ic->duration / 1000000LL;
3289 tmm = (tns % 3600) / 60;
3291 frac = x / cur_stream->width;
3294 mm = (ns % 3600) / 60;
3296 av_log(NULL, AV_LOG_INFO,
3297 "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
3298 hh, mm, ss, thh, tmm, tss);
3299 ts = frac * cur_stream->ic->duration;
3300 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
3301 ts += cur_stream->ic->start_time;
3302 stream_seek(cur_stream, ts, 0, 0);
3305 case SDL_VIDEORESIZE:
3306 screen = SDL_SetVideoMode(FFMIN(16383, event.resize.w), event.resize.h, 0,
3307 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
3309 av_log(NULL, AV_LOG_FATAL, "Failed to set video mode\n");
3310 do_exit(cur_stream);
3312 screen_width = cur_stream->width = screen->w;
3313 screen_height = cur_stream->height = screen->h;
3314 cur_stream->force_refresh = 1;
3318 do_exit(cur_stream);
3320 case FF_ALLOC_EVENT:
3321 alloc_picture(event.user.data1);
3329 static int opt_frame_size(void *optctx, const char *opt, const char *arg)
3331 av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
3332 return opt_default(NULL, "video_size", arg);
3335 static int opt_width(void *optctx, const char *opt, const char *arg)
3337 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
3341 static int opt_height(void *optctx, const char *opt, const char *arg)
3343 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
3347 static int opt_format(void *optctx, const char *opt, const char *arg)
3349 file_iformat = av_find_input_format(arg);
3350 if (!file_iformat) {
3351 av_log(NULL, AV_LOG_FATAL, "Unknown input format: %s\n", arg);
3352 return AVERROR(EINVAL);
3357 static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg)
3359 av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
3360 return opt_default(NULL, "pixel_format", arg);
3363 static int opt_sync(void *optctx, const char *opt, const char *arg)
3365 if (!strcmp(arg, "audio"))
3366 av_sync_type = AV_SYNC_AUDIO_MASTER;
3367 else if (!strcmp(arg, "video"))
3368 av_sync_type = AV_SYNC_VIDEO_MASTER;
3369 else if (!strcmp(arg, "ext"))
3370 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
3372 av_log(NULL, AV_LOG_ERROR, "Unknown value for %s: %s\n", opt, arg);
3378 static int opt_seek(void *optctx, const char *opt, const char *arg)
3380 start_time = parse_time_or_die(opt, arg, 1);
3384 static int opt_duration(void *optctx, const char *opt, const char *arg)
3386 duration = parse_time_or_die(opt, arg, 1);
3390 static int opt_show_mode(void *optctx, const char *opt, const char *arg)
3392 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
3393 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
3394 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
3395 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
3399 static void opt_input_file(void *optctx, const char *filename)
3401 if (input_filename) {
3402 av_log(NULL, AV_LOG_FATAL,
3403 "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3404 filename, input_filename);
3407 if (!strcmp(filename, "-"))
3409 input_filename = filename;
3412 static int opt_codec(void *optctx, const char *opt, const char *arg)
3414 const char *spec = strchr(opt, ':');
3416 av_log(NULL, AV_LOG_ERROR,
3417 "No media specifier was specified in '%s' in option '%s'\n",
3419 return AVERROR(EINVAL);
3423 case 'a' : audio_codec_name = arg; break;
3424 case 's' : subtitle_codec_name = arg; break;
3425 case 'v' : video_codec_name = arg; break;
3427 av_log(NULL, AV_LOG_ERROR,
3428 "Invalid media specifier '%s' in option '%s'\n", spec, opt);
3429 return AVERROR(EINVAL);
3436 static const OptionDef options[] = {
3437 #include "cmdutils_common_opts.h"
3438 { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" },
3439 { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" },
3440 { "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
3441 { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" },
3442 { "an", OPT_BOOL, { &audio_disable }, "disable audio" },
3443 { "vn", OPT_BOOL, { &video_disable }, "disable video" },
3444 { "sn", OPT_BOOL, { &subtitle_disable }, "disable subtitling" },
3445 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
3446 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
3447 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
3448 { "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" },
3449 { "t", HAS_ARG, { .func_arg = opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
3450 { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
3451 { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" },
3452 { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" },
3453 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" },
3454 { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" },
3455 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { &workaround_bugs }, "workaround bugs", "" },
3456 { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" },
3457 { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" },
3458 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3459 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { &lowres }, "", "" },
3460 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { &error_concealment }, "set error concealment options", "bit_mask" },
3461 { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
3462 { "autoexit", OPT_BOOL | OPT_EXPERT, { &autoexit }, "exit at the end", "" },
3463 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" },
3464 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" },
3465 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" },
3466 { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" },
3467 { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" },
3468 { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" },
3470 { "vf", OPT_STRING | HAS_ARG, { &vfilters }, "set video filters", "filter_graph" },
3471 { "af", OPT_STRING | HAS_ARG, { &afilters }, "set audio filters", "filter_graph" },
3473 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" },
3474 { "showmode", HAS_ARG, { .func_arg = opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
3475 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { .func_arg = opt_default }, "generic catch all option", "" },
3476 { "i", OPT_BOOL, { &dummy}, "read specified file", "input_file"},
3477 { "codec", HAS_ARG, { .func_arg = opt_codec}, "force decoder", "decoder_name" },
3478 { "acodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &audio_codec_name }, "force audio decoder", "decoder_name" },
3479 { "scodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &subtitle_codec_name }, "force subtitle decoder", "decoder_name" },
3480 { "vcodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &video_codec_name }, "force video decoder", "decoder_name" },
3484 static void show_usage(void)
3486 av_log(NULL, AV_LOG_INFO, "Simple media player\n");
3487 av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name);
3488 av_log(NULL, AV_LOG_INFO, "\n");
3491 void show_help_default(const char *opt, const char *arg)
3493 av_log_set_callback(log_callback_help);
3495 show_help_options(options, "Main options:", 0, OPT_EXPERT, 0);
3496 show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0);
3498 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3499 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3500 #if !CONFIG_AVFILTER
3501 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3503 show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM);
3505 printf("\nWhile playing:\n"
3507 "f toggle full screen\n"
3509 "a cycle audio channel in the current program\n"
3510 "v cycle video channel\n"
3511 "t cycle subtitle channel in the current program\n"
3513 "w show audio waves\n"
3514 "s activate frame-step mode\n"
3515 "left/right seek backward/forward 10 seconds\n"
3516 "down/up seek backward/forward 1 minute\n"
3517 "page down/page up seek backward/forward 10 minutes\n"
3518 "mouse click seek to percentage in file corresponding to fraction of width\n"
3522 static int lockmgr(void **mtx, enum AVLockOp op)
3525 case AV_LOCK_CREATE:
3526 *mtx = SDL_CreateMutex();
3530 case AV_LOCK_OBTAIN:
3531 return !!SDL_LockMutex(*mtx);
3532 case AV_LOCK_RELEASE:
3533 return !!SDL_UnlockMutex(*mtx);
3534 case AV_LOCK_DESTROY:
3535 SDL_DestroyMutex(*mtx);
3541 /* Called from the main */
3542 int main(int argc, char **argv)
3546 char dummy_videodriver[] = "SDL_VIDEODRIVER=dummy";
3548 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3549 parse_loglevel(argc, argv, options);
3551 /* register all codecs, demux and protocols */
3553 avdevice_register_all();
3556 avfilter_register_all();
3559 avformat_network_init();
3563 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
3564 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
3566 show_banner(argc, argv, options);
3568 parse_options(NULL, argc, argv, options, opt_input_file);
3570 if (!input_filename) {
3572 av_log(NULL, AV_LOG_FATAL, "An input file must be specified\n");
3573 av_log(NULL, AV_LOG_FATAL,
3574 "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3578 if (display_disable) {
3581 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3583 flags &= ~SDL_INIT_AUDIO;
3584 if (display_disable)
3585 SDL_putenv(dummy_videodriver); /* For the event queue, we always need a video driver. */
3586 #if !defined(__MINGW32__) && !defined(__APPLE__)
3587 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3589 if (SDL_Init (flags)) {
3590 av_log(NULL, AV_LOG_FATAL, "Could not initialize SDL - %s\n", SDL_GetError());
3591 av_log(NULL, AV_LOG_FATAL, "(Did you set the DISPLAY variable?)\n");
3595 if (!display_disable) {
3596 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3597 fs_screen_width = vi->current_w;
3598 fs_screen_height = vi->current_h;
3601 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3602 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3603 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3605 if (av_lockmgr_register(lockmgr)) {
3606 av_log(NULL, AV_LOG_FATAL, "Could not initialize lock manager!\n");
3610 av_init_packet(&flush_pkt);
3611 flush_pkt.data = (uint8_t *)&flush_pkt;
3613 is = stream_open(input_filename, file_iformat);
3615 av_log(NULL, AV_LOG_FATAL, "Failed to initialize VideoState!\n");