2 * Copyright (c) 2003 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * simple media player based on the FFmpeg libraries
31 #include "libavutil/avstring.h"
32 #include "libavutil/colorspace.h"
33 #include "libavutil/mathematics.h"
34 #include "libavutil/pixdesc.h"
35 #include "libavutil/imgutils.h"
36 #include "libavutil/dict.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/avassert.h"
40 #include "libavutil/time.h"
41 #include "libavformat/avformat.h"
42 #include "libavdevice/avdevice.h"
43 #include "libswscale/swscale.h"
44 #include "libavutil/opt.h"
45 #include "libavcodec/avfft.h"
46 #include "libswresample/swresample.h"
49 # include "libavfilter/avcodec.h"
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/buffersink.h"
53 # include "libavfilter/buffersrc.h"
57 #include <SDL_thread.h>
63 const char program_name[] = "ffplay";
64 const int program_birth_year = 2003;
66 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
69 /* SDL audio buffer size, in samples. Should be small to have precise
70 A/V sync as SDL does not have hardware buffer fullness info. */
71 #define SDL_AUDIO_BUFFER_SIZE 1024
73 /* no AV sync correction is done if below the AV sync threshold */
74 #define AV_SYNC_THRESHOLD 0.01
75 /* no AV correction is done if too big error */
76 #define AV_NOSYNC_THRESHOLD 10.0
78 /* maximum audio speed change to get correct sync */
79 #define SAMPLE_CORRECTION_PERCENT_MAX 10
81 /* external clock speed adjustment constants for realtime sources based on buffer fullness */
82 #define EXTERNAL_CLOCK_SPEED_MIN 0.900
83 #define EXTERNAL_CLOCK_SPEED_MAX 1.010
84 #define EXTERNAL_CLOCK_SPEED_STEP 0.001
86 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
87 #define AUDIO_DIFF_AVG_NB 20
89 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
90 /* TODO: We assume that a decoded and resampled frame fits into this buffer */
91 #define SAMPLE_ARRAY_SIZE (8 * 65536)
93 #define CURSOR_HIDE_DELAY 1000000
95 static int64_t sws_flags = SWS_BICUBIC;
97 typedef struct MyAVPacketList {
99 struct MyAVPacketList *next;
103 typedef struct PacketQueue {
104 MyAVPacketList *first_pkt, *last_pkt;
113 #define VIDEO_PICTURE_QUEUE_SIZE 4
114 #define SUBPICTURE_QUEUE_SIZE 4
116 typedef struct VideoPicture {
117 double pts; // presentation timestamp for this picture
118 int64_t pos; // byte position in file
120 int width, height; /* source height & width */
121 AVRational sample_aspect_ratio;
127 AVFilterBufferRef *picref;
131 typedef struct SubPicture {
132 double pts; /* presentation time stamp for this picture */
136 typedef struct AudioParams {
140 enum AVSampleFormat fmt;
144 AV_SYNC_AUDIO_MASTER, /* default choice */
145 AV_SYNC_VIDEO_MASTER,
146 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
149 typedef struct VideoState {
150 SDL_Thread *read_tid;
151 SDL_Thread *video_tid;
152 SDL_Thread *refresh_tid;
153 AVInputFormat *iformat;
159 int queue_attachments_req;
164 int read_pause_return;
171 double external_clock; ///< external clock base
172 double external_clock_drift; ///< external clock base - time (av_gettime) at which we updated external_clock
173 int64_t external_clock_time; ///< last reference time
174 double external_clock_speed; ///< speed of the external clock
177 double audio_diff_cum; /* used for AV difference average computation */
178 double audio_diff_avg_coef;
179 double audio_diff_threshold;
180 int audio_diff_avg_count;
183 int audio_hw_buf_size;
184 uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
187 unsigned int audio_buf_size; /* in bytes */
188 unsigned int audio_buf1_size;
189 int audio_buf_index; /* in bytes */
190 int audio_write_buf_size;
191 AVPacket audio_pkt_temp;
193 int audio_pkt_temp_serial;
194 struct AudioParams audio_src;
195 struct AudioParams audio_tgt;
196 struct SwrContext *swr_ctx;
197 double audio_current_pts;
198 double audio_current_pts_drift;
199 int frame_drops_early;
200 int frame_drops_late;
204 SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
206 int16_t sample_array[SAMPLE_ARRAY_SIZE];
207 int sample_array_index;
211 FFTSample *rdft_data;
214 SDL_Thread *subtitle_tid;
216 int subtitle_stream_changed;
217 AVStream *subtitle_st;
218 PacketQueue subtitleq;
219 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
220 int subpq_size, subpq_rindex, subpq_windex;
221 SDL_mutex *subpq_mutex;
222 SDL_cond *subpq_cond;
225 double frame_last_pts;
226 double frame_last_duration;
227 double frame_last_dropped_pts;
228 double frame_last_returned_time;
229 double frame_last_filter_delay;
230 int64_t frame_last_dropped_pos;
231 double video_clock; // pts of last decoded frame / predicted pts of next decoded frame
235 double video_current_pts; // current displayed pts (different from video_clock if frame fifos are used)
236 double video_current_pts_drift; // video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
237 int64_t video_current_pos; // current displayed file pos
238 double max_frame_duration; // maximum duration of a frame - above this, we consider the jump a timestamp discontinuity
239 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
240 int pictq_size, pictq_rindex, pictq_windex;
241 SDL_mutex *pictq_mutex;
242 SDL_cond *pictq_cond;
244 struct SwsContext *img_convert_ctx;
246 SDL_Rect last_display_rect;
249 int width, height, xleft, ytop;
253 AVFilterContext *in_video_filter; // the first filter in the video chain
254 AVFilterContext *out_video_filter; // the last filter in the video chain
256 FrameBuffer *buffer_pool;
260 int last_video_stream, last_audio_stream, last_subtitle_stream;
262 SDL_cond *continue_read_thread;
265 /* options specified by the user */
266 static AVInputFormat *file_iformat;
267 static const char *input_filename;
268 static const char *window_title;
269 static int fs_screen_width;
270 static int fs_screen_height;
271 static int default_width = 640;
272 static int default_height = 480;
273 static int screen_width = 0;
274 static int screen_height = 0;
275 static int audio_disable;
276 static int video_disable;
277 static int wanted_stream[AVMEDIA_TYPE_NB] = {
278 [AVMEDIA_TYPE_AUDIO] = -1,
279 [AVMEDIA_TYPE_VIDEO] = -1,
280 [AVMEDIA_TYPE_SUBTITLE] = -1,
282 static int seek_by_bytes = -1;
283 static int display_disable;
284 static int show_status = 1;
285 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
286 static int64_t start_time = AV_NOPTS_VALUE;
287 static int64_t duration = AV_NOPTS_VALUE;
288 static int workaround_bugs = 1;
290 static int genpts = 0;
291 static int lowres = 0;
292 static int idct = FF_IDCT_AUTO;
293 static enum AVDiscard skip_frame = AVDISCARD_DEFAULT;
294 static enum AVDiscard skip_idct = AVDISCARD_DEFAULT;
295 static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT;
296 static int error_concealment = 3;
297 static int decoder_reorder_pts = -1;
299 static int exit_on_keydown;
300 static int exit_on_mousedown;
302 static int framedrop = -1;
303 static int infinite_buffer = -1;
304 static enum ShowMode show_mode = SHOW_MODE_NONE;
305 static const char *audio_codec_name;
306 static const char *subtitle_codec_name;
307 static const char *video_codec_name;
308 static int rdftspeed = 20;
309 static int64_t cursor_last_shown;
310 static int cursor_hidden = 0;
312 static char *vfilters = NULL;
315 /* current context */
316 static int is_full_screen;
317 static int64_t audio_callback_time;
319 static AVPacket flush_pkt;
321 #define FF_ALLOC_EVENT (SDL_USEREVENT)
322 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
323 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
325 static SDL_Surface *screen;
327 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
329 static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt)
331 MyAVPacketList *pkt1;
333 if (q->abort_request)
336 pkt1 = av_malloc(sizeof(MyAVPacketList));
341 if (pkt == &flush_pkt)
343 pkt1->serial = q->serial;
348 q->last_pkt->next = pkt1;
351 q->size += pkt1->pkt.size + sizeof(*pkt1);
352 /* XXX: should duplicate packet data in DV case */
353 SDL_CondSignal(q->cond);
357 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
361 /* duplicate the packet */
362 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
365 SDL_LockMutex(q->mutex);
366 ret = packet_queue_put_private(q, pkt);
367 SDL_UnlockMutex(q->mutex);
369 if (pkt != &flush_pkt && ret < 0)
375 /* packet queue handling */
376 static void packet_queue_init(PacketQueue *q)
378 memset(q, 0, sizeof(PacketQueue));
379 q->mutex = SDL_CreateMutex();
380 q->cond = SDL_CreateCond();
381 q->abort_request = 1;
384 static void packet_queue_flush(PacketQueue *q)
386 MyAVPacketList *pkt, *pkt1;
388 SDL_LockMutex(q->mutex);
389 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
391 av_free_packet(&pkt->pkt);
398 SDL_UnlockMutex(q->mutex);
401 static void packet_queue_destroy(PacketQueue *q)
403 packet_queue_flush(q);
404 SDL_DestroyMutex(q->mutex);
405 SDL_DestroyCond(q->cond);
408 static void packet_queue_abort(PacketQueue *q)
410 SDL_LockMutex(q->mutex);
412 q->abort_request = 1;
414 SDL_CondSignal(q->cond);
416 SDL_UnlockMutex(q->mutex);
419 static void packet_queue_start(PacketQueue *q)
421 SDL_LockMutex(q->mutex);
422 q->abort_request = 0;
423 packet_queue_put_private(q, &flush_pkt);
424 SDL_UnlockMutex(q->mutex);
427 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
428 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *serial)
430 MyAVPacketList *pkt1;
433 SDL_LockMutex(q->mutex);
436 if (q->abort_request) {
443 q->first_pkt = pkt1->next;
447 q->size -= pkt1->pkt.size + sizeof(*pkt1);
450 *serial = pkt1->serial;
458 SDL_CondWait(q->cond, q->mutex);
461 SDL_UnlockMutex(q->mutex);
465 static inline void fill_rectangle(SDL_Surface *screen,
466 int x, int y, int w, int h, int color, int update)
473 SDL_FillRect(screen, &rect, color);
474 if (update && w > 0 && h > 0)
475 SDL_UpdateRect(screen, x, y, w, h);
478 /* draw only the border of a rectangle */
479 static void fill_border(int xleft, int ytop, int width, int height, int x, int y, int w, int h, int color, int update)
483 /* fill the background */
487 w2 = width - (x + w);
493 h2 = height - (y + h);
496 fill_rectangle(screen,
500 fill_rectangle(screen,
501 xleft + width - w2, ytop,
504 fill_rectangle(screen,
508 fill_rectangle(screen,
509 xleft + w1, ytop + height - h2,
514 #define ALPHA_BLEND(a, oldp, newp, s)\
515 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
517 #define RGBA_IN(r, g, b, a, s)\
519 unsigned int v = ((const uint32_t *)(s))[0];\
520 a = (v >> 24) & 0xff;\
521 r = (v >> 16) & 0xff;\
522 g = (v >> 8) & 0xff;\
526 #define YUVA_IN(y, u, v, a, s, pal)\
528 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
529 a = (val >> 24) & 0xff;\
530 y = (val >> 16) & 0xff;\
531 u = (val >> 8) & 0xff;\
535 #define YUVA_OUT(d, y, u, v, a)\
537 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
543 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
545 int wrap, wrap3, width2, skip2;
546 int y, u, v, a, u1, v1, a1, w, h;
547 uint8_t *lum, *cb, *cr;
550 int dstx, dsty, dstw, dsth;
552 dstw = av_clip(rect->w, 0, imgw);
553 dsth = av_clip(rect->h, 0, imgh);
554 dstx = av_clip(rect->x, 0, imgw - dstw);
555 dsty = av_clip(rect->y, 0, imgh - dsth);
556 lum = dst->data[0] + dsty * dst->linesize[0];
557 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
558 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
560 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
562 wrap = dst->linesize[0];
563 wrap3 = rect->pict.linesize[0];
564 p = rect->pict.data[0];
565 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
573 YUVA_IN(y, u, v, a, p, pal);
574 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
575 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
576 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
582 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
583 YUVA_IN(y, u, v, a, p, pal);
587 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
589 YUVA_IN(y, u, v, a, p + BPP, pal);
593 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
594 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
595 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
602 YUVA_IN(y, u, v, a, p, pal);
603 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
604 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
605 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
609 p += wrap3 - dstw * BPP;
610 lum += wrap - dstw - dstx;
611 cb += dst->linesize[1] - width2 - skip2;
612 cr += dst->linesize[2] - width2 - skip2;
614 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
620 YUVA_IN(y, u, v, a, p, pal);
624 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
627 YUVA_IN(y, u, v, a, p, pal);
631 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
632 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
633 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
639 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
640 YUVA_IN(y, u, v, a, p, pal);
644 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
646 YUVA_IN(y, u, v, a, p + BPP, pal);
650 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
654 YUVA_IN(y, u, v, a, p, pal);
658 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
660 YUVA_IN(y, u, v, a, p + BPP, pal);
664 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
666 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
667 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
671 p += -wrap3 + 2 * BPP;
675 YUVA_IN(y, u, v, a, p, pal);
679 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
682 YUVA_IN(y, u, v, a, p, pal);
686 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
687 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
688 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
694 p += wrap3 + (wrap3 - dstw * BPP);
695 lum += wrap + (wrap - dstw - dstx);
696 cb += dst->linesize[1] - width2 - skip2;
697 cr += dst->linesize[2] - width2 - skip2;
699 /* handle odd height */
706 YUVA_IN(y, u, v, a, p, pal);
707 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
708 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
709 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
715 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
716 YUVA_IN(y, u, v, a, p, pal);
720 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
722 YUVA_IN(y, u, v, a, p + BPP, pal);
726 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
727 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
728 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
735 YUVA_IN(y, u, v, a, p, pal);
736 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
737 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
738 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
743 static void free_subpicture(SubPicture *sp)
745 avsubtitle_free(&sp->sub);
748 static void calculate_display_rect(SDL_Rect *rect, int scr_xleft, int scr_ytop, int scr_width, int scr_height, VideoPicture *vp)
751 int width, height, x, y;
753 if (vp->sample_aspect_ratio.num == 0)
756 aspect_ratio = av_q2d(vp->sample_aspect_ratio);
758 if (aspect_ratio <= 0.0)
760 aspect_ratio *= (float)vp->width / (float)vp->height;
762 /* XXX: we suppose the screen has a 1.0 pixel ratio */
764 width = ((int)rint(height * aspect_ratio)) & ~1;
765 if (width > scr_width) {
767 height = ((int)rint(width / aspect_ratio)) & ~1;
769 x = (scr_width - width) / 2;
770 y = (scr_height - height) / 2;
771 rect->x = scr_xleft + x;
772 rect->y = scr_ytop + y;
773 rect->w = FFMAX(width, 1);
774 rect->h = FFMAX(height, 1);
777 static void video_image_display(VideoState *is)
785 vp = &is->pictq[is->pictq_rindex];
787 if (is->subtitle_st) {
788 if (is->subpq_size > 0) {
789 sp = &is->subpq[is->subpq_rindex];
791 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
792 SDL_LockYUVOverlay (vp->bmp);
794 pict.data[0] = vp->bmp->pixels[0];
795 pict.data[1] = vp->bmp->pixels[2];
796 pict.data[2] = vp->bmp->pixels[1];
798 pict.linesize[0] = vp->bmp->pitches[0];
799 pict.linesize[1] = vp->bmp->pitches[2];
800 pict.linesize[2] = vp->bmp->pitches[1];
802 for (i = 0; i < sp->sub.num_rects; i++)
803 blend_subrect(&pict, sp->sub.rects[i],
804 vp->bmp->w, vp->bmp->h);
806 SDL_UnlockYUVOverlay (vp->bmp);
811 calculate_display_rect(&rect, is->xleft, is->ytop, is->width, is->height, vp);
813 SDL_DisplayYUVOverlay(vp->bmp, &rect);
815 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) {
816 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
817 fill_border(is->xleft, is->ytop, is->width, is->height, rect.x, rect.y, rect.w, rect.h, bgcolor, 1);
818 is->last_display_rect = rect;
823 static inline int compute_mod(int a, int b)
825 return a < 0 ? a%b + b : a%b;
828 static void video_audio_display(VideoState *s)
830 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
831 int ch, channels, h, h2, bgcolor, fgcolor;
833 int rdft_bits, nb_freq;
835 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
837 nb_freq = 1 << (rdft_bits - 1);
839 /* compute display index : center on currently output samples */
840 channels = s->audio_tgt.channels;
841 nb_display_channels = channels;
843 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
845 delay = s->audio_write_buf_size;
848 /* to be more precise, we take into account the time spent since
849 the last buffer computation */
850 if (audio_callback_time) {
851 time_diff = av_gettime() - audio_callback_time;
852 delay -= (time_diff * s->audio_tgt.freq) / 1000000;
855 delay += 2 * data_used;
856 if (delay < data_used)
859 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
860 if (s->show_mode == SHOW_MODE_WAVES) {
862 for (i = 0; i < 1000; i += channels) {
863 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
864 int a = s->sample_array[idx];
865 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
866 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
867 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
869 if (h < score && (b ^ c) < 0) {
876 s->last_i_start = i_start;
878 i_start = s->last_i_start;
881 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
882 if (s->show_mode == SHOW_MODE_WAVES) {
883 fill_rectangle(screen,
884 s->xleft, s->ytop, s->width, s->height,
887 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
889 /* total height for one channel */
890 h = s->height / nb_display_channels;
891 /* graph height / 2 */
893 for (ch = 0; ch < nb_display_channels; ch++) {
895 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
896 for (x = 0; x < s->width; x++) {
897 y = (s->sample_array[i] * h2) >> 15;
904 fill_rectangle(screen,
905 s->xleft + x, ys, 1, y,
908 if (i >= SAMPLE_ARRAY_SIZE)
909 i -= SAMPLE_ARRAY_SIZE;
913 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
915 for (ch = 1; ch < nb_display_channels; ch++) {
916 y = s->ytop + ch * h;
917 fill_rectangle(screen,
918 s->xleft, y, s->width, 1,
921 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
923 nb_display_channels= FFMIN(nb_display_channels, 2);
924 if (rdft_bits != s->rdft_bits) {
925 av_rdft_end(s->rdft);
926 av_free(s->rdft_data);
927 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
928 s->rdft_bits = rdft_bits;
929 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
933 for (ch = 0; ch < nb_display_channels; ch++) {
934 data[ch] = s->rdft_data + 2 * nb_freq * ch;
936 for (x = 0; x < 2 * nb_freq; x++) {
937 double w = (x-nb_freq) * (1.0 / nb_freq);
938 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
940 if (i >= SAMPLE_ARRAY_SIZE)
941 i -= SAMPLE_ARRAY_SIZE;
943 av_rdft_calc(s->rdft, data[ch]);
945 // least efficient way to do this, we should of course directly access it but its more than fast enough
946 for (y = 0; y < s->height; y++) {
947 double w = 1 / sqrt(nb_freq);
948 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]));
949 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
950 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
953 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
955 fill_rectangle(screen,
956 s->xpos, s->height-y, 1, 1,
960 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
963 if (s->xpos >= s->width)
968 static void stream_close(VideoState *is)
972 /* XXX: use a special url_shutdown call to abort parse cleanly */
973 is->abort_request = 1;
974 SDL_WaitThread(is->read_tid, NULL);
975 SDL_WaitThread(is->refresh_tid, NULL);
976 packet_queue_destroy(&is->videoq);
977 packet_queue_destroy(&is->audioq);
978 packet_queue_destroy(&is->subtitleq);
980 /* free all pictures */
981 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
984 avfilter_unref_bufferp(&vp->picref);
987 SDL_FreeYUVOverlay(vp->bmp);
991 SDL_DestroyMutex(is->pictq_mutex);
992 SDL_DestroyCond(is->pictq_cond);
993 SDL_DestroyMutex(is->subpq_mutex);
994 SDL_DestroyCond(is->subpq_cond);
995 SDL_DestroyCond(is->continue_read_thread);
997 sws_freeContext(is->img_convert_ctx);
1002 static void do_exit(VideoState *is)
1007 av_lockmgr_register(NULL);
1011 av_freep(&vfilters);
1013 avformat_network_deinit();
1017 av_log(NULL, AV_LOG_QUIET, "%s", "");
1021 static void sigterm_handler(int sig)
1026 static int video_open(VideoState *is, int force_set_video_mode, VideoPicture *vp)
1028 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
1032 if (is_full_screen) flags |= SDL_FULLSCREEN;
1033 else flags |= SDL_RESIZABLE;
1035 if (vp && vp->width) {
1036 calculate_display_rect(&rect, 0, 0, INT_MAX, vp->height, vp);
1037 default_width = rect.w;
1038 default_height = rect.h;
1041 if (is_full_screen && fs_screen_width) {
1042 w = fs_screen_width;
1043 h = fs_screen_height;
1044 } else if (!is_full_screen && screen_width) {
1051 if (screen && is->width == screen->w && screen->w == w
1052 && is->height== screen->h && screen->h == h && !force_set_video_mode)
1054 screen = SDL_SetVideoMode(w, h, 0, flags);
1056 fprintf(stderr, "SDL: could not set video mode - exiting\n");
1060 window_title = input_filename;
1061 SDL_WM_SetCaption(window_title, window_title);
1063 is->width = screen->w;
1064 is->height = screen->h;
1069 /* display the current picture, if any */
1070 static void video_display(VideoState *is)
1073 video_open(is, 0, NULL);
1074 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
1075 video_audio_display(is);
1076 else if (is->video_st)
1077 video_image_display(is);
1080 static int refresh_thread(void *opaque)
1082 VideoState *is= opaque;
1083 while (!is->abort_request) {
1085 event.type = FF_REFRESH_EVENT;
1086 event.user.data1 = opaque;
1087 if (!is->refresh && (!is->paused || is->force_refresh)) {
1089 SDL_PushEvent(&event);
1091 //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
1092 av_usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
1097 /* get the current audio clock value */
1098 static double get_audio_clock(VideoState *is)
1101 return is->audio_current_pts;
1103 return is->audio_current_pts_drift + av_gettime() / 1000000.0;
1107 /* get the current video clock value */
1108 static double get_video_clock(VideoState *is)
1111 return is->video_current_pts;
1113 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1117 /* get the current external clock value */
1118 static double get_external_clock(VideoState *is)
1121 return is->external_clock;
1123 double time = av_gettime() / 1000000.0;
1124 return is->external_clock_drift + time - (time - is->external_clock_time / 1000000.0) * (1.0 - is->external_clock_speed);
1128 static int get_master_sync_type(VideoState *is) {
1129 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1131 return AV_SYNC_VIDEO_MASTER;
1133 return AV_SYNC_AUDIO_MASTER;
1134 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1136 return AV_SYNC_AUDIO_MASTER;
1138 return AV_SYNC_EXTERNAL_CLOCK;
1140 return AV_SYNC_EXTERNAL_CLOCK;
1144 /* get the current master clock value */
1145 static double get_master_clock(VideoState *is)
1149 switch (get_master_sync_type(is)) {
1150 case AV_SYNC_VIDEO_MASTER:
1151 val = get_video_clock(is);
1153 case AV_SYNC_AUDIO_MASTER:
1154 val = get_audio_clock(is);
1157 val = get_external_clock(is);
1163 static void update_external_clock_pts(VideoState *is, double pts)
1165 is->external_clock_time = av_gettime();
1166 is->external_clock = pts;
1167 is->external_clock_drift = pts - is->external_clock_time / 1000000.0;
1170 static void check_external_clock_sync(VideoState *is, double pts) {
1171 if (fabs(get_external_clock(is) - pts) > AV_NOSYNC_THRESHOLD) {
1172 update_external_clock_pts(is, pts);
1176 static void update_external_clock_speed(VideoState *is, double speed) {
1177 update_external_clock_pts(is, get_external_clock(is));
1178 is->external_clock_speed = speed;
1181 static void check_external_clock_speed(VideoState *is) {
1182 if (is->video_stream >= 0 && is->videoq.nb_packets <= MIN_FRAMES / 2 ||
1183 is->audio_stream >= 0 && is->audioq.nb_packets <= MIN_FRAMES / 2) {
1184 update_external_clock_speed(is, FFMAX(EXTERNAL_CLOCK_SPEED_MIN, is->external_clock_speed - EXTERNAL_CLOCK_SPEED_STEP));
1185 } else if ((is->video_stream < 0 || is->videoq.nb_packets > MIN_FRAMES * 2) &&
1186 (is->audio_stream < 0 || is->audioq.nb_packets > MIN_FRAMES * 2)) {
1187 update_external_clock_speed(is, FFMIN(EXTERNAL_CLOCK_SPEED_MAX, is->external_clock_speed + EXTERNAL_CLOCK_SPEED_STEP));
1189 double speed = is->external_clock_speed;
1191 update_external_clock_speed(is, speed + EXTERNAL_CLOCK_SPEED_STEP * (1.0 - speed) / fabs(1.0 - speed));
1195 /* seek in the stream */
1196 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1198 if (!is->seek_req) {
1201 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1203 is->seek_flags |= AVSEEK_FLAG_BYTE;
1208 /* pause or resume the video */
1209 static void stream_toggle_pause(VideoState *is)
1212 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1213 if (is->read_pause_return != AVERROR(ENOSYS)) {
1214 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1216 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1218 update_external_clock_pts(is, get_external_clock(is));
1219 is->paused = !is->paused;
1222 static void toggle_pause(VideoState *is)
1224 stream_toggle_pause(is);
1228 static void step_to_next_frame(VideoState *is)
1230 /* if the stream is paused unpause it, then step */
1232 stream_toggle_pause(is);
1236 static double compute_target_delay(double delay, VideoState *is)
1238 double sync_threshold, diff;
1240 /* update delay to follow master synchronisation source */
1241 if (get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER) {
1242 /* if video is slave, we try to correct big delays by
1243 duplicating or deleting a frame */
1244 diff = get_video_clock(is) - get_master_clock(is);
1246 /* skip or repeat frame. We take into account the
1247 delay to compute the threshold. I still don't know
1248 if it is the best guess */
1249 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1250 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1251 if (diff <= -sync_threshold)
1253 else if (diff >= sync_threshold)
1258 av_dlog(NULL, "video: delay=%0.3f A-V=%f\n",
1264 static void pictq_next_picture(VideoState *is) {
1265 /* update queue size and signal for next picture */
1266 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1267 is->pictq_rindex = 0;
1269 SDL_LockMutex(is->pictq_mutex);
1271 SDL_CondSignal(is->pictq_cond);
1272 SDL_UnlockMutex(is->pictq_mutex);
1275 static void pictq_prev_picture(VideoState *is) {
1276 VideoPicture *prevvp;
1277 /* update queue size and signal for the previous picture */
1278 prevvp = &is->pictq[(is->pictq_rindex + VIDEO_PICTURE_QUEUE_SIZE - 1) % VIDEO_PICTURE_QUEUE_SIZE];
1279 if (prevvp->allocated && prevvp->serial == is->videoq.serial) {
1280 SDL_LockMutex(is->pictq_mutex);
1281 if (is->pictq_size < VIDEO_PICTURE_QUEUE_SIZE - 1) {
1282 if (--is->pictq_rindex == -1)
1283 is->pictq_rindex = VIDEO_PICTURE_QUEUE_SIZE - 1;
1286 SDL_CondSignal(is->pictq_cond);
1287 SDL_UnlockMutex(is->pictq_mutex);
1291 static void update_video_pts(VideoState *is, double pts, int64_t pos, int serial) {
1292 double time = av_gettime() / 1000000.0;
1293 /* update current video pts */
1294 is->video_current_pts = pts;
1295 is->video_current_pts_drift = is->video_current_pts - time;
1296 is->video_current_pos = pos;
1297 is->frame_last_pts = pts;
1298 if (is->videoq.serial == serial)
1299 check_external_clock_sync(is, is->video_current_pts);
1302 /* called to display each frame */
1303 static void video_refresh(void *opaque)
1305 VideoState *is = opaque;
1309 SubPicture *sp, *sp2;
1311 if (!is->paused && get_master_sync_type(is) == AV_SYNC_EXTERNAL_CLOCK && is->realtime)
1312 check_external_clock_speed(is);
1314 if (!display_disable && is->show_mode != SHOW_MODE_VIDEO && is->audio_st)
1318 if (is->force_refresh)
1319 pictq_prev_picture(is);
1321 if (is->pictq_size == 0) {
1322 SDL_LockMutex(is->pictq_mutex);
1323 if (is->frame_last_dropped_pts != AV_NOPTS_VALUE && is->frame_last_dropped_pts > is->frame_last_pts) {
1324 update_video_pts(is, is->frame_last_dropped_pts, is->frame_last_dropped_pos, 0);
1325 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1327 SDL_UnlockMutex(is->pictq_mutex);
1328 // nothing to do, no picture to display in the queue
1330 double last_duration, duration, delay;
1331 /* dequeue the picture */
1332 vp = &is->pictq[is->pictq_rindex];
1334 if (vp->serial != is->videoq.serial) {
1335 pictq_next_picture(is);
1342 /* compute nominal last_duration */
1343 last_duration = vp->pts - is->frame_last_pts;
1344 if (last_duration > 0 && last_duration < is->max_frame_duration) {
1345 /* if duration of the last frame was sane, update last_duration in video state */
1346 is->frame_last_duration = last_duration;
1348 delay = compute_target_delay(is->frame_last_duration, is);
1350 time= av_gettime()/1000000.0;
1351 if (time < is->frame_timer + delay)
1355 is->frame_timer += delay * FFMAX(1, floor((time-is->frame_timer) / delay));
1357 SDL_LockMutex(is->pictq_mutex);
1358 update_video_pts(is, vp->pts, vp->pos, vp->serial);
1359 SDL_UnlockMutex(is->pictq_mutex);
1361 if (is->pictq_size > 1) {
1362 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1363 duration = nextvp->pts - vp->pts;
1364 if(!is->step && (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){
1365 is->frame_drops_late++;
1366 pictq_next_picture(is);
1371 if (is->subtitle_st) {
1372 if (is->subtitle_stream_changed) {
1373 SDL_LockMutex(is->subpq_mutex);
1375 while (is->subpq_size) {
1376 free_subpicture(&is->subpq[is->subpq_rindex]);
1378 /* update queue size and signal for next picture */
1379 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1380 is->subpq_rindex = 0;
1384 is->subtitle_stream_changed = 0;
1386 SDL_CondSignal(is->subpq_cond);
1387 SDL_UnlockMutex(is->subpq_mutex);
1389 if (is->subpq_size > 0) {
1390 sp = &is->subpq[is->subpq_rindex];
1392 if (is->subpq_size > 1)
1393 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1397 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1398 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1400 free_subpicture(sp);
1402 /* update queue size and signal for next picture */
1403 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1404 is->subpq_rindex = 0;
1406 SDL_LockMutex(is->subpq_mutex);
1408 SDL_CondSignal(is->subpq_cond);
1409 SDL_UnlockMutex(is->subpq_mutex);
1416 /* display picture */
1417 if (!display_disable && is->show_mode == SHOW_MODE_VIDEO)
1420 pictq_next_picture(is);
1422 if (is->step && !is->paused)
1423 stream_toggle_pause(is);
1426 is->force_refresh = 0;
1428 static int64_t last_time;
1430 int aqsize, vqsize, sqsize;
1433 cur_time = av_gettime();
1434 if (!last_time || (cur_time - last_time) >= 30000) {
1439 aqsize = is->audioq.size;
1441 vqsize = is->videoq.size;
1442 if (is->subtitle_st)
1443 sqsize = is->subtitleq.size;
1445 if (is->audio_st && is->video_st)
1446 av_diff = get_audio_clock(is) - get_video_clock(is);
1447 printf("%7.2f A-V:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1448 get_master_clock(is),
1450 is->frame_drops_early + is->frame_drops_late,
1454 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1455 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1457 last_time = cur_time;
1462 /* allocate a picture (needs to do that in main thread to avoid
1463 potential locking problems */
1464 static void alloc_picture(VideoState *is)
1468 vp = &is->pictq[is->pictq_windex];
1471 SDL_FreeYUVOverlay(vp->bmp);
1474 avfilter_unref_bufferp(&vp->picref);
1477 video_open(is, 0, vp);
1479 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1482 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1483 /* SDL allocates a buffer smaller than requested if the video
1484 * overlay hardware is unable to support the requested size. */
1485 fprintf(stderr, "Error: the video system does not support an image\n"
1486 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1487 "to reduce the image size.\n", vp->width, vp->height );
1491 SDL_LockMutex(is->pictq_mutex);
1493 SDL_CondSignal(is->pictq_cond);
1494 SDL_UnlockMutex(is->pictq_mutex);
1497 static void duplicate_right_border_pixels(SDL_Overlay *bmp) {
1498 int i, width, height;
1500 for (i = 0; i < 3; i++) {
1507 if (bmp->pitches[i] > width) {
1508 maxp = bmp->pixels[i] + bmp->pitches[i] * height - 1;
1509 for (p = bmp->pixels[i] + width - 1; p < maxp; p += bmp->pitches[i])
1515 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos, int serial)
1518 double frame_delay, pts = pts1;
1520 /* compute the exact PTS for the picture if it is omitted in the stream
1521 * pts1 is the dts of the pkt / pts of the frame */
1523 /* update video clock with pts, if present */
1524 is->video_clock = pts;
1526 pts = is->video_clock;
1528 /* update video clock for next frame */
1529 frame_delay = av_q2d(is->video_st->codec->time_base);
1530 /* for MPEG2, the frame can be repeated, so we update the
1531 clock accordingly */
1532 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1533 is->video_clock += frame_delay;
1535 #if defined(DEBUG_SYNC) && 0
1536 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1537 av_get_picture_type_char(src_frame->pict_type), pts, pts1);
1540 /* wait until we have space to put a new picture */
1541 SDL_LockMutex(is->pictq_mutex);
1543 /* keep the last already displayed picture in the queue */
1544 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE - 2 &&
1545 !is->videoq.abort_request) {
1546 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1548 SDL_UnlockMutex(is->pictq_mutex);
1550 if (is->videoq.abort_request)
1553 vp = &is->pictq[is->pictq_windex];
1556 vp->sample_aspect_ratio = ((AVFilterBufferRef *)src_frame->opaque)->video->sample_aspect_ratio;
1558 vp->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, src_frame);
1561 /* alloc or resize hardware picture buffer */
1562 if (!vp->bmp || vp->reallocate || !vp->allocated ||
1563 vp->width != src_frame->width ||
1564 vp->height != src_frame->height) {
1569 vp->width = src_frame->width;
1570 vp->height = src_frame->height;
1572 /* the allocation must be done in the main thread to avoid
1573 locking problems. */
1574 event.type = FF_ALLOC_EVENT;
1575 event.user.data1 = is;
1576 SDL_PushEvent(&event);
1578 /* wait until the picture is allocated */
1579 SDL_LockMutex(is->pictq_mutex);
1580 while (!vp->allocated && !is->videoq.abort_request) {
1581 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1583 /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */
1584 if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) {
1585 while (!vp->allocated) {
1586 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1589 SDL_UnlockMutex(is->pictq_mutex);
1591 if (is->videoq.abort_request)
1595 /* if the frame is not skipped, then display it */
1597 AVPicture pict = { { 0 } };
1599 avfilter_unref_bufferp(&vp->picref);
1600 vp->picref = src_frame->opaque;
1603 /* get a pointer on the bitmap */
1604 SDL_LockYUVOverlay (vp->bmp);
1606 pict.data[0] = vp->bmp->pixels[0];
1607 pict.data[1] = vp->bmp->pixels[2];
1608 pict.data[2] = vp->bmp->pixels[1];
1610 pict.linesize[0] = vp->bmp->pitches[0];
1611 pict.linesize[1] = vp->bmp->pitches[2];
1612 pict.linesize[2] = vp->bmp->pitches[1];
1615 // FIXME use direct rendering
1616 av_picture_copy(&pict, (AVPicture *)src_frame,
1617 src_frame->format, vp->width, vp->height);
1619 av_opt_get_int(sws_opts, "sws_flags", 0, &sws_flags);
1620 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1621 vp->width, vp->height, src_frame->format, vp->width, vp->height,
1622 AV_PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1623 if (is->img_convert_ctx == NULL) {
1624 fprintf(stderr, "Cannot initialize the conversion context\n");
1627 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1628 0, vp->height, pict.data, pict.linesize);
1630 /* workaround SDL PITCH_WORKAROUND */
1631 duplicate_right_border_pixels(vp->bmp);
1632 /* update the bitmap content */
1633 SDL_UnlockYUVOverlay(vp->bmp);
1637 vp->serial = serial;
1639 /* now we can update the picture count */
1640 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1641 is->pictq_windex = 0;
1642 SDL_LockMutex(is->pictq_mutex);
1644 SDL_UnlockMutex(is->pictq_mutex);
1649 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt, int *serial)
1653 if (packet_queue_get(&is->videoq, pkt, 1, serial) < 0)
1656 if (pkt->data == flush_pkt.data) {
1657 avcodec_flush_buffers(is->video_st->codec);
1659 SDL_LockMutex(is->pictq_mutex);
1660 // Make sure there are no long delay timers (ideally we should just flush the queue but that's harder)
1661 while (is->pictq_size && !is->videoq.abort_request) {
1662 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1664 is->video_current_pos = -1;
1665 is->frame_last_pts = AV_NOPTS_VALUE;
1666 is->frame_last_duration = 0;
1667 is->frame_timer = (double)av_gettime() / 1000000.0;
1668 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1669 SDL_UnlockMutex(is->pictq_mutex);
1674 if(avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt) < 0)
1680 if (decoder_reorder_pts == -1) {
1681 *pts = av_frame_get_best_effort_timestamp(frame);
1682 } else if (decoder_reorder_pts) {
1683 *pts = frame->pkt_pts;
1685 *pts = frame->pkt_dts;
1688 if (*pts == AV_NOPTS_VALUE) {
1692 if (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) {
1693 SDL_LockMutex(is->pictq_mutex);
1694 if (is->frame_last_pts != AV_NOPTS_VALUE && *pts) {
1695 double clockdiff = get_video_clock(is) - get_master_clock(is);
1696 double dpts = av_q2d(is->video_st->time_base) * *pts;
1697 double ptsdiff = dpts - is->frame_last_pts;
1698 if (fabs(clockdiff) < AV_NOSYNC_THRESHOLD &&
1699 ptsdiff > 0 && ptsdiff < AV_NOSYNC_THRESHOLD &&
1700 clockdiff + ptsdiff - is->frame_last_filter_delay < 0) {
1701 is->frame_last_dropped_pos = pkt->pos;
1702 is->frame_last_dropped_pts = dpts;
1703 is->frame_drops_early++;
1707 SDL_UnlockMutex(is->pictq_mutex);
1716 static int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph,
1717 AVFilterContext *source_ctx, AVFilterContext *sink_ctx)
1720 AVFilterInOut *outputs = NULL, *inputs = NULL;
1723 outputs = avfilter_inout_alloc();
1724 inputs = avfilter_inout_alloc();
1725 if (!outputs || !inputs) {
1726 ret = AVERROR(ENOMEM);
1730 outputs->name = av_strdup("in");
1731 outputs->filter_ctx = source_ctx;
1732 outputs->pad_idx = 0;
1733 outputs->next = NULL;
1735 inputs->name = av_strdup("out");
1736 inputs->filter_ctx = sink_ctx;
1737 inputs->pad_idx = 0;
1738 inputs->next = NULL;
1740 if ((ret = avfilter_graph_parse(graph, filtergraph, &inputs, &outputs, NULL)) < 0)
1743 if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0)
1747 ret = avfilter_graph_config(graph, NULL);
1749 avfilter_inout_free(&outputs);
1750 avfilter_inout_free(&inputs);
1754 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters, AVFrame *frame)
1756 static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE };
1757 char sws_flags_str[128];
1758 char buffersrc_args[256];
1760 AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
1761 AVFilterContext *filt_src = NULL, *filt_out = NULL, *filt_crop;
1762 AVCodecContext *codec = is->video_st->codec;
1764 if (!buffersink_params)
1765 return AVERROR(ENOMEM);
1767 av_opt_get_int(sws_opts, "sws_flags", 0, &sws_flags);
1768 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%"PRId64, sws_flags);
1769 graph->scale_sws_opts = av_strdup(sws_flags_str);
1771 snprintf(buffersrc_args, sizeof(buffersrc_args),
1772 "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
1773 frame->width, frame->height, frame->format,
1774 is->video_st->time_base.num, is->video_st->time_base.den,
1775 codec->sample_aspect_ratio.num, FFMAX(codec->sample_aspect_ratio.den, 1));
1777 if ((ret = avfilter_graph_create_filter(&filt_src,
1778 avfilter_get_by_name("buffer"),
1779 "ffplay_buffer", buffersrc_args, NULL,
1783 buffersink_params->pixel_fmts = pix_fmts;
1784 ret = avfilter_graph_create_filter(&filt_out,
1785 avfilter_get_by_name("ffbuffersink"),
1786 "ffplay_buffersink", NULL, buffersink_params, graph);
1790 /* SDL YUV code is not handling odd width/height for some driver
1791 * combinations, therefore we crop the picture to an even width/height. */
1792 if ((ret = avfilter_graph_create_filter(&filt_crop,
1793 avfilter_get_by_name("crop"),
1794 "ffplay_crop", "floor(in_w/2)*2:floor(in_h/2)*2", NULL, graph)) < 0)
1796 if ((ret = avfilter_link(filt_crop, 0, filt_out, 0)) < 0)
1799 if ((ret = configure_filtergraph(graph, vfilters, filt_src, filt_crop)) < 0)
1802 is->in_video_filter = filt_src;
1803 is->out_video_filter = filt_out;
1806 av_freep(&buffersink_params);
1810 #endif /* CONFIG_AVFILTER */
1812 static int video_thread(void *arg)
1814 AVPacket pkt = { 0 };
1815 VideoState *is = arg;
1816 AVFrame *frame = avcodec_alloc_frame();
1817 int64_t pts_int = AV_NOPTS_VALUE, pos = -1;
1823 AVCodecContext *codec = is->video_st->codec;
1824 AVFilterGraph *graph = avfilter_graph_alloc();
1825 AVFilterContext *filt_out = NULL, *filt_in = NULL;
1828 enum AVPixelFormat last_format = -2;
1829 int last_serial = -1;
1831 if (codec->codec->capabilities & CODEC_CAP_DR1) {
1833 codec->get_buffer = codec_get_buffer;
1834 codec->release_buffer = codec_release_buffer;
1835 codec->opaque = &is->buffer_pool;
1841 AVFilterBufferRef *picref;
1844 while (is->paused && !is->videoq.abort_request)
1847 avcodec_get_frame_defaults(frame);
1848 av_free_packet(&pkt);
1850 ret = get_video_frame(is, frame, &pts_int, &pkt, &serial);
1858 if ( last_w != frame->width
1859 || last_h != frame->height
1860 || last_format != frame->format
1861 || last_serial != serial) {
1862 av_log(NULL, AV_LOG_INFO, "Frame changed from size:%dx%d to size:%dx%d\n",
1863 last_w, last_h, frame->width, frame->height);
1864 avfilter_graph_free(&graph);
1865 graph = avfilter_graph_alloc();
1866 if ((ret = configure_video_filters(graph, is, vfilters, frame)) < 0) {
1868 event.type = FF_QUIT_EVENT;
1869 event.user.data1 = is;
1870 SDL_PushEvent(&event);
1871 av_free_packet(&pkt);
1874 filt_in = is->in_video_filter;
1875 filt_out = is->out_video_filter;
1876 last_w = frame->width;
1877 last_h = frame->height;
1878 last_format = frame->format;
1879 last_serial = serial;
1882 frame->pts = pts_int;
1883 frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame);
1884 if (is->use_dr1 && frame->opaque) {
1885 FrameBuffer *buf = frame->opaque;
1886 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1887 frame->data, frame->linesize,
1888 AV_PERM_READ | AV_PERM_PRESERVE,
1889 frame->width, frame->height,
1892 avfilter_copy_frame_props(fb, frame);
1893 fb->buf->priv = buf;
1894 fb->buf->free = filter_release_buffer;
1897 av_buffersrc_add_ref(filt_in, fb, AV_BUFFERSRC_FLAG_NO_COPY);
1900 av_buffersrc_write_frame(filt_in, frame);
1902 av_free_packet(&pkt);
1905 is->frame_last_returned_time = av_gettime() / 1000000.0;
1907 ret = av_buffersink_get_buffer_ref(filt_out, &picref, 0);
1913 is->frame_last_filter_delay = av_gettime() / 1000000.0 - is->frame_last_returned_time;
1914 if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0)
1915 is->frame_last_filter_delay = 0;
1917 avfilter_copy_buf_props(frame, picref);
1919 pts_int = picref->pts;
1920 tb = filt_out->inputs[0]->time_base;
1922 frame->opaque = picref;
1924 if (av_cmp_q(tb, is->video_st->time_base)) {
1925 av_unused int64_t pts1 = pts_int;
1926 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1927 av_dlog(NULL, "video_thread(): "
1928 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1929 tb.num, tb.den, pts1,
1930 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1932 pts = pts_int * av_q2d(is->video_st->time_base);
1933 ret = queue_picture(is, frame, pts, pos, serial);
1936 pts = pts_int * av_q2d(is->video_st->time_base);
1937 ret = queue_picture(is, frame, pts, pkt.pos, serial);
1944 avcodec_flush_buffers(is->video_st->codec);
1946 avfilter_graph_free(&graph);
1948 av_free_packet(&pkt);
1949 avcodec_free_frame(&frame);
1953 static int subtitle_thread(void *arg)
1955 VideoState *is = arg;
1957 AVPacket pkt1, *pkt = &pkt1;
1961 int r, g, b, y, u, v, a;
1964 while (is->paused && !is->subtitleq.abort_request) {
1967 if (packet_queue_get(&is->subtitleq, pkt, 1, NULL) < 0)
1970 if (pkt->data == flush_pkt.data) {
1971 avcodec_flush_buffers(is->subtitle_st->codec);
1974 SDL_LockMutex(is->subpq_mutex);
1975 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1976 !is->subtitleq.abort_request) {
1977 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1979 SDL_UnlockMutex(is->subpq_mutex);
1981 if (is->subtitleq.abort_request)
1984 sp = &is->subpq[is->subpq_windex];
1986 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1987 this packet, if any */
1989 if (pkt->pts != AV_NOPTS_VALUE)
1990 pts = av_q2d(is->subtitle_st->time_base) * pkt->pts;
1992 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1993 &got_subtitle, pkt);
1994 if (got_subtitle && sp->sub.format == 0) {
1995 if (sp->sub.pts != AV_NOPTS_VALUE)
1996 pts = sp->sub.pts / (double)AV_TIME_BASE;
1999 for (i = 0; i < sp->sub.num_rects; i++)
2001 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
2003 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
2004 y = RGB_TO_Y_CCIR(r, g, b);
2005 u = RGB_TO_U_CCIR(r, g, b, 0);
2006 v = RGB_TO_V_CCIR(r, g, b, 0);
2007 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
2011 /* now we can update the picture count */
2012 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
2013 is->subpq_windex = 0;
2014 SDL_LockMutex(is->subpq_mutex);
2016 SDL_UnlockMutex(is->subpq_mutex);
2018 av_free_packet(pkt);
2023 /* copy samples for viewing in editor window */
2024 static void update_sample_display(VideoState *is, short *samples, int samples_size)
2028 size = samples_size / sizeof(short);
2030 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
2033 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
2035 is->sample_array_index += len;
2036 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
2037 is->sample_array_index = 0;
2042 /* return the wanted number of samples to get better sync if sync_type is video
2043 * or external master clock */
2044 static int synchronize_audio(VideoState *is, int nb_samples)
2046 int wanted_nb_samples = nb_samples;
2048 /* if not master, then we try to remove or add samples to correct the clock */
2049 if (get_master_sync_type(is) != AV_SYNC_AUDIO_MASTER) {
2050 double diff, avg_diff;
2051 int min_nb_samples, max_nb_samples;
2053 diff = get_audio_clock(is) - get_master_clock(is);
2055 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
2056 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2057 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2058 /* not enough measures to have a correct estimate */
2059 is->audio_diff_avg_count++;
2061 /* estimate the A-V difference */
2062 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2064 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2065 wanted_nb_samples = nb_samples + (int)(diff * is->audio_src.freq);
2066 min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100));
2067 max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100));
2068 wanted_nb_samples = FFMIN(FFMAX(wanted_nb_samples, min_nb_samples), max_nb_samples);
2070 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2071 diff, avg_diff, wanted_nb_samples - nb_samples,
2072 is->audio_clock, is->video_clock, is->audio_diff_threshold);
2075 /* too big difference : may be initial PTS errors, so
2077 is->audio_diff_avg_count = 0;
2078 is->audio_diff_cum = 0;
2082 return wanted_nb_samples;
2086 * Decode one audio frame and return its uncompressed size.
2088 * The processed audio frame is decoded, converted if required, and
2089 * stored in is->audio_buf, with size in bytes given by the return
2092 static int audio_decode_frame(VideoState *is)
2094 AVPacket *pkt_temp = &is->audio_pkt_temp;
2095 AVPacket *pkt = &is->audio_pkt;
2096 AVCodecContext *dec = is->audio_st->codec;
2097 int len1, len2, data_size, resampled_data_size;
2098 int64_t dec_channel_layout;
2100 av_unused double audio_clock0;
2102 int flush_complete = 0;
2103 int wanted_nb_samples;
2106 /* NOTE: the audio packet can contain several frames */
2107 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
2109 if (!(is->frame = avcodec_alloc_frame()))
2110 return AVERROR(ENOMEM);
2112 avcodec_get_frame_defaults(is->frame);
2120 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
2122 /* if error, we skip the frame */
2127 pkt_temp->data += len1;
2128 pkt_temp->size -= len1;
2131 /* stop sending empty packets if the decoder is finished */
2132 if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
2136 data_size = av_samples_get_buffer_size(NULL, is->frame->channels,
2137 is->frame->nb_samples,
2138 is->frame->format, 1);
2140 dec_channel_layout =
2141 (is->frame->channel_layout && is->frame->channels == av_get_channel_layout_nb_channels(is->frame->channel_layout)) ?
2142 is->frame->channel_layout : av_get_default_channel_layout(is->frame->channels);
2143 wanted_nb_samples = synchronize_audio(is, is->frame->nb_samples);
2145 if (is->frame->format != is->audio_src.fmt ||
2146 dec_channel_layout != is->audio_src.channel_layout ||
2147 is->frame->sample_rate != is->audio_src.freq ||
2148 (wanted_nb_samples != is->frame->nb_samples && !is->swr_ctx)) {
2149 swr_free(&is->swr_ctx);
2150 is->swr_ctx = swr_alloc_set_opts(NULL,
2151 is->audio_tgt.channel_layout, is->audio_tgt.fmt, is->audio_tgt.freq,
2152 dec_channel_layout, is->frame->format, is->frame->sample_rate,
2154 if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
2155 fprintf(stderr, "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
2156 is->frame->sample_rate, av_get_sample_fmt_name(is->frame->format), (int)is->frame->channels,
2157 is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels);
2160 is->audio_src.channel_layout = dec_channel_layout;
2161 is->audio_src.channels = is->frame->channels;
2162 is->audio_src.freq = is->frame->sample_rate;
2163 is->audio_src.fmt = is->frame->format;
2167 const uint8_t **in = (const uint8_t **)is->frame->extended_data;
2168 uint8_t **out = &is->audio_buf1;
2169 int out_count = (int64_t)wanted_nb_samples * is->audio_tgt.freq / is->frame->sample_rate + 256;
2170 int out_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, out_count, is->audio_tgt.fmt, 0);
2171 if (wanted_nb_samples != is->frame->nb_samples) {
2172 if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - is->frame->nb_samples) * is->audio_tgt.freq / is->frame->sample_rate,
2173 wanted_nb_samples * is->audio_tgt.freq / is->frame->sample_rate) < 0) {
2174 fprintf(stderr, "swr_set_compensation() failed\n");
2178 av_fast_malloc(&is->audio_buf1, &is->audio_buf1_size, out_size);
2179 if (!is->audio_buf1)
2180 return AVERROR(ENOMEM);
2181 len2 = swr_convert(is->swr_ctx, out, out_count, in, is->frame->nb_samples);
2183 fprintf(stderr, "swr_convert() failed\n");
2186 if (len2 == out_count) {
2187 fprintf(stderr, "warning: audio buffer is probably too small\n");
2188 swr_init(is->swr_ctx);
2190 is->audio_buf = is->audio_buf1;
2191 resampled_data_size = len2 * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
2193 is->audio_buf = is->frame->data[0];
2194 resampled_data_size = data_size;
2197 /* if no pts, then compute it */
2198 audio_clock0 = is->audio_clock;
2199 is->audio_clock += (double)data_size /
2200 (is->frame->channels * is->frame->sample_rate * av_get_bytes_per_sample(is->frame->format));
2203 static double last_clock;
2204 printf("audio: delay=%0.3f clock=%0.3f clock0=%0.3f\n",
2205 is->audio_clock - last_clock,
2206 is->audio_clock, audio_clock0);
2207 last_clock = is->audio_clock;
2210 return resampled_data_size;
2213 /* free the current packet */
2215 av_free_packet(pkt);
2216 memset(pkt_temp, 0, sizeof(*pkt_temp));
2218 if (is->paused || is->audioq.abort_request) {
2222 if (is->audioq.nb_packets == 0)
2223 SDL_CondSignal(is->continue_read_thread);
2225 /* read next packet */
2226 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1, &is->audio_pkt_temp_serial)) < 0)
2229 if (pkt->data == flush_pkt.data) {
2230 avcodec_flush_buffers(dec);
2236 /* if update the audio clock with the pts */
2237 if (pkt->pts != AV_NOPTS_VALUE) {
2238 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2243 /* prepare a new audio buffer */
2244 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2246 VideoState *is = opaque;
2247 int audio_size, len1;
2249 int frame_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, 1, is->audio_tgt.fmt, 1);
2251 audio_callback_time = av_gettime();
2254 if (is->audio_buf_index >= is->audio_buf_size) {
2255 audio_size = audio_decode_frame(is);
2256 if (audio_size < 0) {
2257 /* if error, just output silence */
2258 is->audio_buf = is->silence_buf;
2259 is->audio_buf_size = sizeof(is->silence_buf) / frame_size * frame_size;
2261 if (is->show_mode != SHOW_MODE_VIDEO)
2262 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2263 is->audio_buf_size = audio_size;
2265 is->audio_buf_index = 0;
2267 len1 = is->audio_buf_size - is->audio_buf_index;
2270 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2273 is->audio_buf_index += len1;
2275 bytes_per_sec = is->audio_tgt.freq * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
2276 is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
2277 /* Let's assume the audio driver that is used by SDL has two periods. */
2278 is->audio_current_pts = is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec;
2279 is->audio_current_pts_drift = is->audio_current_pts - audio_callback_time / 1000000.0;
2280 if (is->audioq.serial == is->audio_pkt_temp_serial)
2281 check_external_clock_sync(is, is->audio_current_pts);
2284 static int audio_open(void *opaque, int64_t wanted_channel_layout, int wanted_nb_channels, int wanted_sample_rate, struct AudioParams *audio_hw_params)
2286 SDL_AudioSpec wanted_spec, spec;
2288 const int next_nb_channels[] = {0, 0, 1, 6, 2, 6, 4, 6};
2290 env = SDL_getenv("SDL_AUDIO_CHANNELS");
2292 wanted_nb_channels = atoi(env);
2293 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2295 if (!wanted_channel_layout || wanted_nb_channels != av_get_channel_layout_nb_channels(wanted_channel_layout)) {
2296 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2297 wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX;
2299 wanted_spec.channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
2300 wanted_spec.freq = wanted_sample_rate;
2301 if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) {
2302 fprintf(stderr, "Invalid sample rate or channel count!\n");
2305 wanted_spec.format = AUDIO_S16SYS;
2306 wanted_spec.silence = 0;
2307 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2308 wanted_spec.callback = sdl_audio_callback;
2309 wanted_spec.userdata = opaque;
2310 while (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2311 fprintf(stderr, "SDL_OpenAudio (%d channels): %s\n", wanted_spec.channels, SDL_GetError());
2312 wanted_spec.channels = next_nb_channels[FFMIN(7, wanted_spec.channels)];
2313 if (!wanted_spec.channels) {
2314 fprintf(stderr, "No more channel combinations to try, audio open failed\n");
2317 wanted_channel_layout = av_get_default_channel_layout(wanted_spec.channels);
2319 if (spec.format != AUDIO_S16SYS) {
2320 fprintf(stderr, "SDL advised audio format %d is not supported!\n", spec.format);
2323 if (spec.channels != wanted_spec.channels) {
2324 wanted_channel_layout = av_get_default_channel_layout(spec.channels);
2325 if (!wanted_channel_layout) {
2326 fprintf(stderr, "SDL advised channel count %d is not supported!\n", spec.channels);
2331 audio_hw_params->fmt = AV_SAMPLE_FMT_S16;
2332 audio_hw_params->freq = spec.freq;
2333 audio_hw_params->channel_layout = wanted_channel_layout;
2334 audio_hw_params->channels = spec.channels;
2338 /* open a given stream. Return 0 if OK */
2339 static int stream_component_open(VideoState *is, int stream_index)
2341 AVFormatContext *ic = is->ic;
2342 AVCodecContext *avctx;
2344 const char *forced_codec_name = NULL;
2346 AVDictionaryEntry *t = NULL;
2348 if (stream_index < 0 || stream_index >= ic->nb_streams)
2350 avctx = ic->streams[stream_index]->codec;
2352 codec = avcodec_find_decoder(avctx->codec_id);
2354 switch(avctx->codec_type){
2355 case AVMEDIA_TYPE_AUDIO : is->last_audio_stream = stream_index; forced_codec_name = audio_codec_name; break;
2356 case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; forced_codec_name = subtitle_codec_name; break;
2357 case AVMEDIA_TYPE_VIDEO : is->last_video_stream = stream_index; forced_codec_name = video_codec_name; break;
2359 if (forced_codec_name)
2360 codec = avcodec_find_decoder_by_name(forced_codec_name);
2362 if (forced_codec_name) fprintf(stderr, "No codec could be found with name '%s'\n", forced_codec_name);
2363 else fprintf(stderr, "No codec could be found with id %d\n", avctx->codec_id);
2367 avctx->codec_id = codec->id;
2368 avctx->workaround_bugs = workaround_bugs;
2369 avctx->lowres = lowres;
2370 if(avctx->lowres > codec->max_lowres){
2371 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
2373 avctx->lowres= codec->max_lowres;
2375 avctx->idct_algo = idct;
2376 avctx->skip_frame = skip_frame;
2377 avctx->skip_idct = skip_idct;
2378 avctx->skip_loop_filter = skip_loop_filter;
2379 avctx->error_concealment = error_concealment;
2381 if(avctx->lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2382 if (fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2383 if(codec->capabilities & CODEC_CAP_DR1)
2384 avctx->flags |= CODEC_FLAG_EMU_EDGE;
2386 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec);
2387 if (!av_dict_get(opts, "threads", NULL, 0))
2388 av_dict_set(&opts, "threads", "auto", 0);
2389 if (avcodec_open2(avctx, codec, &opts) < 0)
2391 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2392 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2393 return AVERROR_OPTION_NOT_FOUND;
2396 /* prepare audio output */
2397 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2398 int audio_hw_buf_size = audio_open(is, avctx->channel_layout, avctx->channels, avctx->sample_rate, &is->audio_src);
2399 if (audio_hw_buf_size < 0)
2401 is->audio_hw_buf_size = audio_hw_buf_size;
2402 is->audio_tgt = is->audio_src;
2405 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2406 switch (avctx->codec_type) {
2407 case AVMEDIA_TYPE_AUDIO:
2408 is->audio_stream = stream_index;
2409 is->audio_st = ic->streams[stream_index];
2410 is->audio_buf_size = 0;
2411 is->audio_buf_index = 0;
2413 /* init averaging filter */
2414 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2415 is->audio_diff_avg_count = 0;
2416 /* since we do not have a precise anough audio fifo fullness,
2417 we correct audio sync only if larger than this threshold */
2418 is->audio_diff_threshold = 2.0 * is->audio_hw_buf_size / av_samples_get_buffer_size(NULL, is->audio_tgt.channels, is->audio_tgt.freq, is->audio_tgt.fmt, 1);
2420 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2421 memset(&is->audio_pkt_temp, 0, sizeof(is->audio_pkt_temp));
2422 packet_queue_start(&is->audioq);
2425 case AVMEDIA_TYPE_VIDEO:
2426 is->video_stream = stream_index;
2427 is->video_st = ic->streams[stream_index];
2429 packet_queue_start(&is->videoq);
2430 is->video_tid = SDL_CreateThread(video_thread, is);
2432 case AVMEDIA_TYPE_SUBTITLE:
2433 is->subtitle_stream = stream_index;
2434 is->subtitle_st = ic->streams[stream_index];
2435 packet_queue_start(&is->subtitleq);
2437 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2445 static void stream_component_close(VideoState *is, int stream_index)
2447 AVFormatContext *ic = is->ic;
2448 AVCodecContext *avctx;
2450 if (stream_index < 0 || stream_index >= ic->nb_streams)
2452 avctx = ic->streams[stream_index]->codec;
2454 switch (avctx->codec_type) {
2455 case AVMEDIA_TYPE_AUDIO:
2456 packet_queue_abort(&is->audioq);
2460 packet_queue_flush(&is->audioq);
2461 av_free_packet(&is->audio_pkt);
2462 swr_free(&is->swr_ctx);
2463 av_freep(&is->audio_buf1);
2464 is->audio_buf1_size = 0;
2465 is->audio_buf = NULL;
2466 avcodec_free_frame(&is->frame);
2469 av_rdft_end(is->rdft);
2470 av_freep(&is->rdft_data);
2475 case AVMEDIA_TYPE_VIDEO:
2476 packet_queue_abort(&is->videoq);
2478 /* note: we also signal this mutex to make sure we deblock the
2479 video thread in all cases */
2480 SDL_LockMutex(is->pictq_mutex);
2481 SDL_CondSignal(is->pictq_cond);
2482 SDL_UnlockMutex(is->pictq_mutex);
2484 SDL_WaitThread(is->video_tid, NULL);
2486 packet_queue_flush(&is->videoq);
2488 case AVMEDIA_TYPE_SUBTITLE:
2489 packet_queue_abort(&is->subtitleq);
2491 /* note: we also signal this mutex to make sure we deblock the
2492 video thread in all cases */
2493 SDL_LockMutex(is->subpq_mutex);
2494 is->subtitle_stream_changed = 1;
2496 SDL_CondSignal(is->subpq_cond);
2497 SDL_UnlockMutex(is->subpq_mutex);
2499 SDL_WaitThread(is->subtitle_tid, NULL);
2501 packet_queue_flush(&is->subtitleq);
2507 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2508 avcodec_close(avctx);
2510 free_buffer_pool(&is->buffer_pool);
2512 switch (avctx->codec_type) {
2513 case AVMEDIA_TYPE_AUDIO:
2514 is->audio_st = NULL;
2515 is->audio_stream = -1;
2517 case AVMEDIA_TYPE_VIDEO:
2518 is->video_st = NULL;
2519 is->video_stream = -1;
2521 case AVMEDIA_TYPE_SUBTITLE:
2522 is->subtitle_st = NULL;
2523 is->subtitle_stream = -1;
2530 static int decode_interrupt_cb(void *ctx)
2532 VideoState *is = ctx;
2533 return is->abort_request;
2536 static int is_realtime(AVFormatContext *s)
2538 if( !strcmp(s->iformat->name, "rtp")
2539 || !strcmp(s->iformat->name, "rtsp")
2540 || !strcmp(s->iformat->name, "sdp")
2544 if(s->pb && ( !strncmp(s->filename, "rtp:", 4)
2545 || !strncmp(s->filename, "udp:", 4)
2552 /* this thread gets the stream from the disk or the network */
2553 static int read_thread(void *arg)
2555 VideoState *is = arg;
2556 AVFormatContext *ic = NULL;
2558 int st_index[AVMEDIA_TYPE_NB];
2559 AVPacket pkt1, *pkt = &pkt1;
2561 int pkt_in_play_range = 0;
2562 AVDictionaryEntry *t;
2563 AVDictionary **opts;
2564 int orig_nb_streams;
2565 SDL_mutex *wait_mutex = SDL_CreateMutex();
2567 memset(st_index, -1, sizeof(st_index));
2568 is->last_video_stream = is->video_stream = -1;
2569 is->last_audio_stream = is->audio_stream = -1;
2570 is->last_subtitle_stream = is->subtitle_stream = -1;
2572 ic = avformat_alloc_context();
2573 ic->interrupt_callback.callback = decode_interrupt_cb;
2574 ic->interrupt_callback.opaque = is;
2575 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2577 print_error(is->filename, err);
2581 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2582 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2583 ret = AVERROR_OPTION_NOT_FOUND;
2589 ic->flags |= AVFMT_FLAG_GENPTS;
2591 opts = setup_find_stream_info_opts(ic, codec_opts);
2592 orig_nb_streams = ic->nb_streams;
2594 err = avformat_find_stream_info(ic, opts);
2596 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2600 for (i = 0; i < orig_nb_streams; i++)
2601 av_dict_free(&opts[i]);
2605 ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
2607 if (seek_by_bytes < 0)
2608 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2610 is->max_frame_duration = (ic->iformat->flags & AVFMT_TS_DISCONT) ? 10.0 : 3600.0;
2612 /* if seeking requested, we execute it */
2613 if (start_time != AV_NOPTS_VALUE) {
2616 timestamp = start_time;
2617 /* add the stream start time */
2618 if (ic->start_time != AV_NOPTS_VALUE)
2619 timestamp += ic->start_time;
2620 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2622 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2623 is->filename, (double)timestamp / AV_TIME_BASE);
2627 is->realtime = is_realtime(ic);
2629 for (i = 0; i < ic->nb_streams; i++)
2630 ic->streams[i]->discard = AVDISCARD_ALL;
2632 st_index[AVMEDIA_TYPE_VIDEO] =
2633 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2634 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2636 st_index[AVMEDIA_TYPE_AUDIO] =
2637 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2638 wanted_stream[AVMEDIA_TYPE_AUDIO],
2639 st_index[AVMEDIA_TYPE_VIDEO],
2642 st_index[AVMEDIA_TYPE_SUBTITLE] =
2643 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2644 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2645 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2646 st_index[AVMEDIA_TYPE_AUDIO] :
2647 st_index[AVMEDIA_TYPE_VIDEO]),
2650 av_dump_format(ic, 0, is->filename, 0);
2653 is->show_mode = show_mode;
2655 /* open the streams */
2656 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2657 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2661 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2662 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2664 if (is->show_mode == SHOW_MODE_NONE)
2665 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2667 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2669 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2670 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2673 if (is->video_stream < 0 && is->audio_stream < 0) {
2674 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2679 if (infinite_buffer < 0 && is->realtime)
2680 infinite_buffer = 1;
2683 if (is->abort_request)
2685 if (is->paused != is->last_paused) {
2686 is->last_paused = is->paused;
2688 is->read_pause_return = av_read_pause(ic);
2692 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
2694 (!strcmp(ic->iformat->name, "rtsp") ||
2695 (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) {
2696 /* wait 10 ms to avoid trying to get another packet */
2703 int64_t seek_target = is->seek_pos;
2704 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2705 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2706 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2707 // of the seek_pos/seek_rel variables
2709 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2711 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2713 if (is->audio_stream >= 0) {
2714 packet_queue_flush(&is->audioq);
2715 packet_queue_put(&is->audioq, &flush_pkt);
2717 if (is->subtitle_stream >= 0) {
2718 packet_queue_flush(&is->subtitleq);
2719 packet_queue_put(&is->subtitleq, &flush_pkt);
2721 if (is->video_stream >= 0) {
2722 packet_queue_flush(&is->videoq);
2723 packet_queue_put(&is->videoq, &flush_pkt);
2725 if (is->seek_flags & AVSEEK_FLAG_BYTE) {
2726 //FIXME: use a cleaner way to signal obsolete external clock...
2727 update_external_clock_pts(is, (double)AV_NOPTS_VALUE);
2729 update_external_clock_pts(is, seek_target / (double)AV_TIME_BASE);
2735 step_to_next_frame(is);
2737 if (is->queue_attachments_req) {
2738 avformat_queue_attached_pictures(ic);
2739 is->queue_attachments_req = 0;
2742 /* if the queue are full, no need to read more */
2743 if (infinite_buffer<1 &&
2744 (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2745 || ( (is->audioq .nb_packets > MIN_FRAMES || is->audio_stream < 0 || is->audioq.abort_request)
2746 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0 || is->videoq.abort_request)
2747 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0 || is->subtitleq.abort_request)))) {
2749 SDL_LockMutex(wait_mutex);
2750 SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
2751 SDL_UnlockMutex(wait_mutex);
2755 if (is->video_stream >= 0) {
2756 av_init_packet(pkt);
2759 pkt->stream_index = is->video_stream;
2760 packet_queue_put(&is->videoq, pkt);
2762 if (is->audio_stream >= 0 &&
2763 is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
2764 av_init_packet(pkt);
2767 pkt->stream_index = is->audio_stream;
2768 packet_queue_put(&is->audioq, pkt);
2771 if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) {
2772 if (loop != 1 && (!loop || --loop)) {
2773 stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2774 } else if (autoexit) {
2782 ret = av_read_frame(ic, pkt);
2784 if (ret == AVERROR_EOF || url_feof(ic->pb))
2786 if (ic->pb && ic->pb->error)
2788 SDL_LockMutex(wait_mutex);
2789 SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
2790 SDL_UnlockMutex(wait_mutex);
2793 /* check if packet is in play range specified by user, then queue, otherwise discard */
2794 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2795 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2796 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2797 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2798 <= ((double)duration / 1000000);
2799 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2800 packet_queue_put(&is->audioq, pkt);
2801 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2802 packet_queue_put(&is->videoq, pkt);
2803 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2804 packet_queue_put(&is->subtitleq, pkt);
2806 av_free_packet(pkt);
2809 /* wait until the end */
2810 while (!is->abort_request) {
2816 /* close each stream */
2817 if (is->audio_stream >= 0)
2818 stream_component_close(is, is->audio_stream);
2819 if (is->video_stream >= 0)
2820 stream_component_close(is, is->video_stream);
2821 if (is->subtitle_stream >= 0)
2822 stream_component_close(is, is->subtitle_stream);
2824 avformat_close_input(&is->ic);
2830 event.type = FF_QUIT_EVENT;
2831 event.user.data1 = is;
2832 SDL_PushEvent(&event);
2834 SDL_DestroyMutex(wait_mutex);
2838 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2842 is = av_mallocz(sizeof(VideoState));
2845 av_strlcpy(is->filename, filename, sizeof(is->filename));
2846 is->iformat = iformat;
2850 /* start video display */
2851 is->pictq_mutex = SDL_CreateMutex();
2852 is->pictq_cond = SDL_CreateCond();
2854 is->subpq_mutex = SDL_CreateMutex();
2855 is->subpq_cond = SDL_CreateCond();
2857 packet_queue_init(&is->videoq);
2858 packet_queue_init(&is->audioq);
2859 packet_queue_init(&is->subtitleq);
2861 is->continue_read_thread = SDL_CreateCond();
2863 //FIXME: use a cleaner way to signal obsolete external clock...
2864 update_external_clock_pts(is, (double)AV_NOPTS_VALUE);
2865 update_external_clock_speed(is, 1.0);
2866 is->audio_current_pts_drift = -av_gettime() / 1000000.0;
2867 is->video_current_pts_drift = is->audio_current_pts_drift;
2868 is->av_sync_type = av_sync_type;
2869 is->read_tid = SDL_CreateThread(read_thread, is);
2870 if (!is->read_tid) {
2877 static void stream_cycle_channel(VideoState *is, int codec_type)
2879 AVFormatContext *ic = is->ic;
2880 int start_index, stream_index;
2884 if (codec_type == AVMEDIA_TYPE_VIDEO) {
2885 start_index = is->last_video_stream;
2886 old_index = is->video_stream;
2887 } else if (codec_type == AVMEDIA_TYPE_AUDIO) {
2888 start_index = is->last_audio_stream;
2889 old_index = is->audio_stream;
2891 start_index = is->last_subtitle_stream;
2892 old_index = is->subtitle_stream;
2894 stream_index = start_index;
2896 if (++stream_index >= is->ic->nb_streams)
2898 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2901 is->last_subtitle_stream = -1;
2904 if (start_index == -1)
2908 if (stream_index == start_index)
2910 st = ic->streams[stream_index];
2911 if (st->codec->codec_type == codec_type) {
2912 /* check that parameters are OK */
2913 switch (codec_type) {
2914 case AVMEDIA_TYPE_AUDIO:
2915 if (st->codec->sample_rate != 0 &&
2916 st->codec->channels != 0)
2919 case AVMEDIA_TYPE_VIDEO:
2920 case AVMEDIA_TYPE_SUBTITLE:
2928 stream_component_close(is, old_index);
2929 stream_component_open(is, stream_index);
2930 if (codec_type == AVMEDIA_TYPE_VIDEO)
2931 is->queue_attachments_req = 1;
2935 static void toggle_full_screen(VideoState *is)
2937 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2938 /* OS X needs to reallocate the SDL overlays */
2940 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++)
2941 is->pictq[i].reallocate = 1;
2943 is_full_screen = !is_full_screen;
2944 video_open(is, 1, NULL);
2947 static void toggle_audio_display(VideoState *is)
2949 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2950 is->show_mode = (is->show_mode + 1) % SHOW_MODE_NB;
2951 fill_rectangle(screen,
2952 is->xleft, is->ytop, is->width, is->height,
2956 /* handle an event sent by the GUI */
2957 static void event_loop(VideoState *cur_stream)
2960 double incr, pos, frac;
2964 SDL_WaitEvent(&event);
2965 switch (event.type) {
2967 if (exit_on_keydown) {
2968 do_exit(cur_stream);
2971 switch (event.key.keysym.sym) {
2974 do_exit(cur_stream);
2977 toggle_full_screen(cur_stream);
2978 cur_stream->force_refresh = 1;
2982 toggle_pause(cur_stream);
2984 case SDLK_s: // S: Step to next frame
2985 step_to_next_frame(cur_stream);
2988 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2991 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2994 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2997 toggle_audio_display(cur_stream);
2998 cur_stream->force_refresh = 1;
3018 if (seek_by_bytes) {
3019 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) {
3020 pos = cur_stream->video_current_pos;
3021 } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) {
3022 pos = cur_stream->audio_pkt.pos;
3024 pos = avio_tell(cur_stream->ic->pb);
3025 if (cur_stream->ic->bit_rate)
3026 incr *= cur_stream->ic->bit_rate / 8.0;
3030 stream_seek(cur_stream, pos, incr, 1);
3032 pos = get_master_clock(cur_stream);
3034 if (cur_stream->ic->start_time != AV_NOPTS_VALUE && pos < cur_stream->ic->start_time / (double)AV_TIME_BASE)
3035 pos = cur_stream->ic->start_time / (double)AV_TIME_BASE;
3036 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
3043 case SDL_VIDEOEXPOSE:
3044 cur_stream->force_refresh = 1;
3046 case SDL_MOUSEBUTTONDOWN:
3047 if (exit_on_mousedown) {
3048 do_exit(cur_stream);
3051 case SDL_MOUSEMOTION:
3052 if (cursor_hidden) {
3056 cursor_last_shown = av_gettime();
3057 if (event.type == SDL_MOUSEBUTTONDOWN) {
3060 if (event.motion.state != SDL_PRESSED)
3064 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
3065 uint64_t size = avio_size(cur_stream->ic->pb);
3066 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
3070 int tns, thh, tmm, tss;
3071 tns = cur_stream->ic->duration / 1000000LL;
3073 tmm = (tns % 3600) / 60;
3075 frac = x / cur_stream->width;
3078 mm = (ns % 3600) / 60;
3080 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
3081 hh, mm, ss, thh, tmm, tss);
3082 ts = frac * cur_stream->ic->duration;
3083 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
3084 ts += cur_stream->ic->start_time;
3085 stream_seek(cur_stream, ts, 0, 0);
3088 case SDL_VIDEORESIZE:
3089 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
3090 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
3091 screen_width = cur_stream->width = event.resize.w;
3092 screen_height = cur_stream->height = event.resize.h;
3093 cur_stream->force_refresh = 1;
3097 do_exit(cur_stream);
3099 case FF_ALLOC_EVENT:
3100 alloc_picture(event.user.data1);
3102 case FF_REFRESH_EVENT:
3103 if (!cursor_hidden && av_gettime() - cursor_last_shown > CURSOR_HIDE_DELAY) {
3107 video_refresh(event.user.data1);
3108 cur_stream->refresh = 0;
3116 static int opt_frame_size(void *optctx, const char *opt, const char *arg)
3118 av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
3119 return opt_default(NULL, "video_size", arg);
3122 static int opt_width(void *optctx, const char *opt, const char *arg)
3124 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
3128 static int opt_height(void *optctx, const char *opt, const char *arg)
3130 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
3134 static int opt_format(void *optctx, const char *opt, const char *arg)
3136 file_iformat = av_find_input_format(arg);
3137 if (!file_iformat) {
3138 fprintf(stderr, "Unknown input format: %s\n", arg);
3139 return AVERROR(EINVAL);
3144 static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg)
3146 av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
3147 return opt_default(NULL, "pixel_format", arg);
3150 static int opt_sync(void *optctx, const char *opt, const char *arg)
3152 if (!strcmp(arg, "audio"))
3153 av_sync_type = AV_SYNC_AUDIO_MASTER;
3154 else if (!strcmp(arg, "video"))
3155 av_sync_type = AV_SYNC_VIDEO_MASTER;
3156 else if (!strcmp(arg, "ext"))
3157 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
3159 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
3165 static int opt_seek(void *optctx, const char *opt, const char *arg)
3167 start_time = parse_time_or_die(opt, arg, 1);
3171 static int opt_duration(void *optctx, const char *opt, const char *arg)
3173 duration = parse_time_or_die(opt, arg, 1);
3177 static int opt_show_mode(void *optctx, const char *opt, const char *arg)
3179 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
3180 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
3181 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
3182 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
3186 static void opt_input_file(void *optctx, const char *filename)
3188 if (input_filename) {
3189 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3190 filename, input_filename);
3193 if (!strcmp(filename, "-"))
3195 input_filename = filename;
3198 static int opt_codec(void *optctx, const char *opt, const char *arg)
3200 const char *spec = strchr(opt, ':');
3202 fprintf(stderr, "No media specifier was specified in '%s' in option '%s'\n",
3204 return AVERROR(EINVAL);
3208 case 'a' : audio_codec_name = arg; break;
3209 case 's' : subtitle_codec_name = arg; break;
3210 case 'v' : video_codec_name = arg; break;
3212 fprintf(stderr, "Invalid media specifier '%s' in option '%s'\n", spec, opt);
3213 return AVERROR(EINVAL);
3220 static const OptionDef options[] = {
3221 #include "cmdutils_common_opts.h"
3222 { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" },
3223 { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" },
3224 { "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
3225 { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" },
3226 { "an", OPT_BOOL, { &audio_disable }, "disable audio" },
3227 { "vn", OPT_BOOL, { &video_disable }, "disable video" },
3228 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
3229 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
3230 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
3231 { "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" },
3232 { "t", HAS_ARG, { .func_arg = opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
3233 { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
3234 { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" },
3235 { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" },
3236 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" },
3237 { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" },
3238 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { &workaround_bugs }, "workaround bugs", "" },
3239 { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" },
3240 { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" },
3241 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3242 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { &lowres }, "", "" },
3243 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_loop_filter }, "", "" },
3244 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_frame }, "", "" },
3245 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_idct }, "", "" },
3246 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { &idct }, "set idct algo", "algo" },
3247 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { &error_concealment }, "set error concealment options", "bit_mask" },
3248 { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
3249 { "autoexit", OPT_BOOL | OPT_EXPERT, { &autoexit }, "exit at the end", "" },
3250 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" },
3251 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" },
3252 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" },
3253 { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" },
3254 { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" },
3255 { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" },
3257 { "vf", OPT_STRING | HAS_ARG, { &vfilters }, "set video filters", "filter_graph" },
3259 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" },
3260 { "showmode", HAS_ARG, { .func_arg = opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
3261 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { .func_arg = opt_default }, "generic catch all option", "" },
3262 { "i", OPT_BOOL, { &dummy}, "read specified file", "input_file"},
3263 { "codec", HAS_ARG, { .func_arg = opt_codec}, "force decoder", "decoder_name" },
3264 { "acodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &audio_codec_name }, "force audio decoder", "decoder_name" },
3265 { "scodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &subtitle_codec_name }, "force subtitle decoder", "decoder_name" },
3266 { "vcodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &video_codec_name }, "force video decoder", "decoder_name" },
3270 static void show_usage(void)
3272 av_log(NULL, AV_LOG_INFO, "Simple media player\n");
3273 av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name);
3274 av_log(NULL, AV_LOG_INFO, "\n");
3277 void show_help_default(const char *opt, const char *arg)
3279 av_log_set_callback(log_callback_help);
3281 show_help_options(options, "Main options:", 0, OPT_EXPERT, 0);
3282 show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0);
3284 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3285 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3286 #if !CONFIG_AVFILTER
3287 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3289 show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM);
3291 printf("\nWhile playing:\n"
3293 "f toggle full screen\n"
3295 "a cycle audio channel\n"
3296 "v cycle video channel\n"
3297 "t cycle subtitle channel\n"
3298 "w show audio waves\n"
3299 "s activate frame-step mode\n"
3300 "left/right seek backward/forward 10 seconds\n"
3301 "down/up seek backward/forward 1 minute\n"
3302 "page down/page up seek backward/forward 10 minutes\n"
3303 "mouse click seek to percentage in file corresponding to fraction of width\n"
3307 static int lockmgr(void **mtx, enum AVLockOp op)
3310 case AV_LOCK_CREATE:
3311 *mtx = SDL_CreateMutex();
3315 case AV_LOCK_OBTAIN:
3316 return !!SDL_LockMutex(*mtx);
3317 case AV_LOCK_RELEASE:
3318 return !!SDL_UnlockMutex(*mtx);
3319 case AV_LOCK_DESTROY:
3320 SDL_DestroyMutex(*mtx);
3326 /* Called from the main */
3327 int main(int argc, char **argv)
3331 char dummy_videodriver[] = "SDL_VIDEODRIVER=dummy";
3333 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3334 parse_loglevel(argc, argv, options);
3336 /* register all codecs, demux and protocols */
3337 avcodec_register_all();
3339 avdevice_register_all();
3342 avfilter_register_all();
3345 avformat_network_init();
3349 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
3350 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
3352 show_banner(argc, argv, options);
3354 parse_options(NULL, argc, argv, options, opt_input_file);
3356 if (!input_filename) {
3358 fprintf(stderr, "An input file must be specified\n");
3359 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3363 if (display_disable) {
3366 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3368 flags &= ~SDL_INIT_AUDIO;
3369 if (display_disable)
3370 SDL_putenv(dummy_videodriver); /* For the event queue, we always need a video driver. */
3371 #if !defined(__MINGW32__) && !defined(__APPLE__)
3372 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3374 if (SDL_Init (flags)) {
3375 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3376 fprintf(stderr, "(Did you set the DISPLAY variable?)\n");
3380 if (!display_disable) {
3381 #if HAVE_SDL_VIDEO_SIZE
3382 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3383 fs_screen_width = vi->current_w;
3384 fs_screen_height = vi->current_h;
3388 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3389 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3390 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3392 if (av_lockmgr_register(lockmgr)) {
3393 fprintf(stderr, "Could not initialize lock manager!\n");
3397 av_init_packet(&flush_pkt);
3398 flush_pkt.data = (char *)(intptr_t)"FLUSH";
3400 is = stream_open(input_filename, file_iformat);
3402 fprintf(stderr, "Failed to initialize VideoState!\n");