2 * ffplay : Simple Media Player based on the FFmpeg libraries
3 * Copyright (c) 2003 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #define _XOPEN_SOURCE 600
28 #include "libavutil/avstring.h"
29 #include "libavutil/colorspace.h"
30 #include "libavutil/pixdesc.h"
31 #include "libavutil/imgutils.h"
32 #include "libavutil/parseutils.h"
33 #include "libavutil/samplefmt.h"
34 #include "libavutil/avassert.h"
35 #include "libavformat/avformat.h"
36 #include "libavdevice/avdevice.h"
37 #include "libswscale/swscale.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavutil/opt.h"
40 #include "libavcodec/avfft.h"
43 # include "libavfilter/avfilter.h"
44 # include "libavfilter/avfiltergraph.h"
50 #include <SDL_thread.h>
53 #undef main /* We don't want SDL to override our main() */
59 const char program_name[] = "ffplay";
60 const int program_birth_year = 2003;
65 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
66 #define MIN_AUDIOQ_SIZE (20 * 16 * 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 #define FRAME_SKIP_FACTOR 0.05
80 /* maximum audio speed change to get correct sync */
81 #define SAMPLE_CORRECTION_PERCENT_MAX 10
83 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
84 #define AUDIO_DIFF_AVG_NB 20
86 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
87 #define SAMPLE_ARRAY_SIZE (2*65536)
89 static int sws_flags = SWS_BICUBIC;
91 typedef struct PacketQueue {
92 AVPacketList *first_pkt, *last_pkt;
100 #define VIDEO_PICTURE_QUEUE_SIZE 2
101 #define SUBPICTURE_QUEUE_SIZE 4
103 typedef struct VideoPicture {
104 double pts; ///<presentation time stamp for this picture
105 double target_clock; ///<av_gettime() time at which this should be displayed ideally
106 int64_t pos; ///<byte position in file
108 int width, height; /* source height & width */
110 enum PixelFormat pix_fmt;
113 AVFilterBufferRef *picref;
117 typedef struct SubPicture {
118 double pts; /* presentation time stamp for this picture */
123 AV_SYNC_AUDIO_MASTER, /* default choice */
124 AV_SYNC_VIDEO_MASTER,
125 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
128 typedef struct VideoState {
129 SDL_Thread *parse_tid;
130 SDL_Thread *video_tid;
131 SDL_Thread *refresh_tid;
132 AVInputFormat *iformat;
141 int read_pause_return;
147 double external_clock; /* external clock base */
148 int64_t external_clock_time;
151 double audio_diff_cum; /* used for AV difference average computation */
152 double audio_diff_avg_coef;
153 double audio_diff_threshold;
154 int audio_diff_avg_count;
157 int audio_hw_buf_size;
158 /* samples output by the codec. we reserve more space for avsync
160 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
161 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
163 unsigned int audio_buf_size; /* in bytes */
164 int audio_buf_index; /* in bytes */
165 AVPacket audio_pkt_temp;
167 enum AVSampleFormat audio_src_fmt;
168 AVAudioConvert *reformat_ctx;
171 SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
173 int16_t sample_array[SAMPLE_ARRAY_SIZE];
174 int sample_array_index;
178 FFTSample *rdft_data;
181 SDL_Thread *subtitle_tid;
183 int subtitle_stream_changed;
184 AVStream *subtitle_st;
185 PacketQueue subtitleq;
186 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
187 int subpq_size, subpq_rindex, subpq_windex;
188 SDL_mutex *subpq_mutex;
189 SDL_cond *subpq_cond;
192 double frame_last_pts;
193 double frame_last_delay;
194 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
198 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
199 double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
200 int64_t video_current_pos; ///<current displayed file pos
201 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
202 int pictq_size, pictq_rindex, pictq_windex;
203 SDL_mutex *pictq_mutex;
204 SDL_cond *pictq_cond;
206 struct SwsContext *img_convert_ctx;
210 int width, height, xleft, ytop;
213 AVFilterContext *out_video_filter; ///<the last filter in the video chain
217 float skip_frames_index;
221 static void show_help(void);
223 /* options specified by the user */
224 static AVInputFormat *file_iformat;
225 static const char *input_filename;
226 static const char *window_title;
227 static int fs_screen_width;
228 static int fs_screen_height;
229 static int screen_width = 0;
230 static int screen_height = 0;
231 static int frame_width = 0;
232 static int frame_height = 0;
233 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
234 static int audio_disable;
235 static int video_disable;
236 static int wanted_stream[AVMEDIA_TYPE_NB]={
237 [AVMEDIA_TYPE_AUDIO]=-1,
238 [AVMEDIA_TYPE_VIDEO]=-1,
239 [AVMEDIA_TYPE_SUBTITLE]=-1,
241 static int seek_by_bytes=-1;
242 static int display_disable;
243 static int show_status = 1;
244 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
245 static int64_t start_time = AV_NOPTS_VALUE;
246 static int64_t duration = AV_NOPTS_VALUE;
247 static int debug = 0;
248 static int debug_mv = 0;
250 static int thread_count = 1;
251 static int workaround_bugs = 1;
253 static int genpts = 0;
254 static int lowres = 0;
255 static int idct = FF_IDCT_AUTO;
256 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
257 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
258 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
259 static int error_recognition = FF_ER_CAREFUL;
260 static int error_concealment = 3;
261 static int decoder_reorder_pts= -1;
263 static int exit_on_keydown;
264 static int exit_on_mousedown;
266 static int framedrop=1;
267 static int show_mode = SHOW_MODE_VIDEO;
269 static int rdftspeed=20;
271 static char *vfilters = NULL;
274 /* current context */
275 static int is_full_screen;
276 static VideoState *cur_stream;
277 static int64_t audio_callback_time;
279 static AVPacket flush_pkt;
281 #define FF_ALLOC_EVENT (SDL_USEREVENT)
282 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
283 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
285 static SDL_Surface *screen;
287 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
291 /* duplicate the packet */
292 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
295 pkt1 = av_malloc(sizeof(AVPacketList));
302 SDL_LockMutex(q->mutex);
308 q->last_pkt->next = pkt1;
311 q->size += pkt1->pkt.size + sizeof(*pkt1);
312 /* XXX: should duplicate packet data in DV case */
313 SDL_CondSignal(q->cond);
315 SDL_UnlockMutex(q->mutex);
319 /* packet queue handling */
320 static void packet_queue_init(PacketQueue *q)
322 memset(q, 0, sizeof(PacketQueue));
323 q->mutex = SDL_CreateMutex();
324 q->cond = SDL_CreateCond();
325 packet_queue_put(q, &flush_pkt);
328 static void packet_queue_flush(PacketQueue *q)
330 AVPacketList *pkt, *pkt1;
332 SDL_LockMutex(q->mutex);
333 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
335 av_free_packet(&pkt->pkt);
342 SDL_UnlockMutex(q->mutex);
345 static void packet_queue_end(PacketQueue *q)
347 packet_queue_flush(q);
348 SDL_DestroyMutex(q->mutex);
349 SDL_DestroyCond(q->cond);
352 static void packet_queue_abort(PacketQueue *q)
354 SDL_LockMutex(q->mutex);
356 q->abort_request = 1;
358 SDL_CondSignal(q->cond);
360 SDL_UnlockMutex(q->mutex);
363 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
364 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
369 SDL_LockMutex(q->mutex);
372 if (q->abort_request) {
379 q->first_pkt = pkt1->next;
383 q->size -= pkt1->pkt.size + sizeof(*pkt1);
392 SDL_CondWait(q->cond, q->mutex);
395 SDL_UnlockMutex(q->mutex);
399 static inline void fill_rectangle(SDL_Surface *screen,
400 int x, int y, int w, int h, int color)
407 SDL_FillRect(screen, &rect, color);
411 /* draw only the border of a rectangle */
412 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
416 /* fill the background */
420 w2 = s->width - (x + w);
426 h2 = s->height - (y + h);
429 fill_rectangle(screen,
433 fill_rectangle(screen,
434 s->xleft + s->width - w2, s->ytop,
437 fill_rectangle(screen,
438 s->xleft + w1, s->ytop,
439 s->width - w1 - w2, h1,
441 fill_rectangle(screen,
442 s->xleft + w1, s->ytop + s->height - h2,
443 s->width - w1 - w2, h2,
448 #define ALPHA_BLEND(a, oldp, newp, s)\
449 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
451 #define RGBA_IN(r, g, b, a, s)\
453 unsigned int v = ((const uint32_t *)(s))[0];\
454 a = (v >> 24) & 0xff;\
455 r = (v >> 16) & 0xff;\
456 g = (v >> 8) & 0xff;\
460 #define YUVA_IN(y, u, v, a, s, pal)\
462 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
463 a = (val >> 24) & 0xff;\
464 y = (val >> 16) & 0xff;\
465 u = (val >> 8) & 0xff;\
469 #define YUVA_OUT(d, y, u, v, a)\
471 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
477 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
479 int wrap, wrap3, width2, skip2;
480 int y, u, v, a, u1, v1, a1, w, h;
481 uint8_t *lum, *cb, *cr;
484 int dstx, dsty, dstw, dsth;
486 dstw = av_clip(rect->w, 0, imgw);
487 dsth = av_clip(rect->h, 0, imgh);
488 dstx = av_clip(rect->x, 0, imgw - dstw);
489 dsty = av_clip(rect->y, 0, imgh - dsth);
490 lum = dst->data[0] + dsty * dst->linesize[0];
491 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
492 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
494 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
496 wrap = dst->linesize[0];
497 wrap3 = rect->pict.linesize[0];
498 p = rect->pict.data[0];
499 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
507 YUVA_IN(y, u, v, a, p, pal);
508 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
509 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
510 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
516 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
517 YUVA_IN(y, u, v, a, p, pal);
521 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
523 YUVA_IN(y, u, v, a, p + BPP, pal);
527 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
528 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
529 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
536 YUVA_IN(y, u, v, a, p, pal);
537 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
538 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
539 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
543 p += wrap3 - dstw * BPP;
544 lum += wrap - dstw - dstx;
545 cb += dst->linesize[1] - width2 - skip2;
546 cr += dst->linesize[2] - width2 - skip2;
548 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
554 YUVA_IN(y, u, v, a, p, pal);
558 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
561 YUVA_IN(y, u, v, a, p, pal);
565 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
566 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
567 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
573 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
574 YUVA_IN(y, u, v, a, p, pal);
578 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
580 YUVA_IN(y, u, v, a, p + BPP, pal);
584 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
588 YUVA_IN(y, u, v, a, p, pal);
592 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
594 YUVA_IN(y, u, v, a, p + BPP, pal);
598 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
600 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
601 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
605 p += -wrap3 + 2 * BPP;
609 YUVA_IN(y, u, v, a, p, pal);
613 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
616 YUVA_IN(y, u, v, a, p, pal);
620 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
621 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
622 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
628 p += wrap3 + (wrap3 - dstw * BPP);
629 lum += wrap + (wrap - dstw - dstx);
630 cb += dst->linesize[1] - width2 - skip2;
631 cr += dst->linesize[2] - width2 - skip2;
633 /* handle odd height */
640 YUVA_IN(y, u, v, a, p, pal);
641 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
642 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
643 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
649 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
650 YUVA_IN(y, u, v, a, p, pal);
654 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
656 YUVA_IN(y, u, v, a, p + BPP, pal);
660 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
661 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
662 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
669 YUVA_IN(y, u, v, a, p, pal);
670 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
671 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
672 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
677 static void free_subpicture(SubPicture *sp)
679 avsubtitle_free(&sp->sub);
682 static void video_image_display(VideoState *is)
688 int width, height, x, y;
692 vp = &is->pictq[is->pictq_rindex];
695 if (vp->picref->video->pixel_aspect.num == 0)
698 aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
701 /* XXX: use variable in the frame */
702 if (is->video_st->sample_aspect_ratio.num)
703 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
704 else if (is->video_st->codec->sample_aspect_ratio.num)
705 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
709 if (aspect_ratio <= 0.0)
711 aspect_ratio *= (float)vp->width / (float)vp->height;
713 if (is->subtitle_st) {
714 if (is->subpq_size > 0) {
715 sp = &is->subpq[is->subpq_rindex];
717 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
718 SDL_LockYUVOverlay (vp->bmp);
720 pict.data[0] = vp->bmp->pixels[0];
721 pict.data[1] = vp->bmp->pixels[2];
722 pict.data[2] = vp->bmp->pixels[1];
724 pict.linesize[0] = vp->bmp->pitches[0];
725 pict.linesize[1] = vp->bmp->pitches[2];
726 pict.linesize[2] = vp->bmp->pitches[1];
728 for (i = 0; i < sp->sub.num_rects; i++)
729 blend_subrect(&pict, sp->sub.rects[i],
730 vp->bmp->w, vp->bmp->h);
732 SDL_UnlockYUVOverlay (vp->bmp);
738 /* XXX: we suppose the screen has a 1.0 pixel ratio */
740 width = ((int)rint(height * aspect_ratio)) & ~1;
741 if (width > is->width) {
743 height = ((int)rint(width / aspect_ratio)) & ~1;
745 x = (is->width - width) / 2;
746 y = (is->height - height) / 2;
747 if (!is->no_background) {
748 /* fill the background */
749 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
751 is->no_background = 0;
753 rect.x = is->xleft + x;
754 rect.y = is->ytop + y;
755 rect.w = FFMAX(width, 1);
756 rect.h = FFMAX(height, 1);
757 SDL_DisplayYUVOverlay(vp->bmp, &rect);
760 fill_rectangle(screen,
761 is->xleft, is->ytop, is->width, is->height,
762 QERGB(0x00, 0x00, 0x00));
767 /* get the current audio output buffer size, in samples. With SDL, we
768 cannot have a precise information */
769 static int audio_write_get_buf_size(VideoState *is)
771 return is->audio_buf_size - is->audio_buf_index;
774 static inline int compute_mod(int a, int b)
776 return a < 0 ? a%b + b : a%b;
779 static void video_audio_display(VideoState *s)
781 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
782 int ch, channels, h, h2, bgcolor, fgcolor;
784 int rdft_bits, nb_freq;
786 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
788 nb_freq= 1<<(rdft_bits-1);
790 /* compute display index : center on currently output samples */
791 channels = s->audio_st->codec->channels;
792 nb_display_channels = channels;
794 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
796 delay = audio_write_get_buf_size(s);
799 /* to be more precise, we take into account the time spent since
800 the last buffer computation */
801 if (audio_callback_time) {
802 time_diff = av_gettime() - audio_callback_time;
803 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
806 delay += 2*data_used;
807 if (delay < data_used)
810 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
811 if (s->show_mode == SHOW_MODE_WAVES) {
813 for(i=0; i<1000; i+=channels){
814 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
815 int a= s->sample_array[idx];
816 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
817 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
818 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
820 if(h<score && (b^c)<0){
827 s->last_i_start = i_start;
829 i_start = s->last_i_start;
832 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
833 if (s->show_mode == SHOW_MODE_WAVES) {
834 fill_rectangle(screen,
835 s->xleft, s->ytop, s->width, s->height,
838 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
840 /* total height for one channel */
841 h = s->height / nb_display_channels;
842 /* graph height / 2 */
844 for(ch = 0;ch < nb_display_channels; ch++) {
846 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
847 for(x = 0; x < s->width; x++) {
848 y = (s->sample_array[i] * h2) >> 15;
855 fill_rectangle(screen,
856 s->xleft + x, ys, 1, y,
859 if (i >= SAMPLE_ARRAY_SIZE)
860 i -= SAMPLE_ARRAY_SIZE;
864 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
866 for(ch = 1;ch < nb_display_channels; ch++) {
867 y = s->ytop + ch * h;
868 fill_rectangle(screen,
869 s->xleft, y, s->width, 1,
872 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
874 nb_display_channels= FFMIN(nb_display_channels, 2);
875 if(rdft_bits != s->rdft_bits){
876 av_rdft_end(s->rdft);
877 av_free(s->rdft_data);
878 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
879 s->rdft_bits= rdft_bits;
880 s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
884 for(ch = 0;ch < nb_display_channels; ch++) {
885 data[ch] = s->rdft_data + 2*nb_freq*ch;
887 for(x = 0; x < 2*nb_freq; x++) {
888 double w= (x-nb_freq)*(1.0/nb_freq);
889 data[ch][x]= s->sample_array[i]*(1.0-w*w);
891 if (i >= SAMPLE_ARRAY_SIZE)
892 i -= SAMPLE_ARRAY_SIZE;
894 av_rdft_calc(s->rdft, data[ch]);
896 //least efficient way to do this, we should of course directly access it but its more than fast enough
897 for(y=0; y<s->height; y++){
898 double w= 1/sqrt(nb_freq);
899 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]));
900 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
901 + data[1][2*y+1]*data[1][2*y+1])) : a;
904 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
906 fill_rectangle(screen,
907 s->xpos, s->height-y, 1, 1,
911 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
913 if(s->xpos >= s->width)
918 static int video_open(VideoState *is){
919 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
922 if(is_full_screen) flags |= SDL_FULLSCREEN;
923 else flags |= SDL_RESIZABLE;
925 if (is_full_screen && fs_screen_width) {
927 h = fs_screen_height;
928 } else if(!is_full_screen && screen_width){
932 }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
933 w = is->out_video_filter->inputs[0]->w;
934 h = is->out_video_filter->inputs[0]->h;
936 }else if (is->video_st && is->video_st->codec->width){
937 w = is->video_st->codec->width;
938 h = is->video_st->codec->height;
944 if(screen && is->width == screen->w && screen->w == w
945 && is->height== screen->h && screen->h == h)
949 screen = SDL_SetVideoMode(w, h, 0, flags);
951 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
952 screen = SDL_SetVideoMode(w, h, 24, flags);
955 fprintf(stderr, "SDL: could not set video mode - exiting\n");
959 window_title = input_filename;
960 SDL_WM_SetCaption(window_title, window_title);
962 is->width = screen->w;
963 is->height = screen->h;
968 /* display the current picture, if any */
969 static void video_display(VideoState *is)
972 video_open(cur_stream);
973 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
974 video_audio_display(is);
975 else if (is->video_st)
976 video_image_display(is);
979 static int refresh_thread(void *opaque)
981 VideoState *is= opaque;
982 while(!is->abort_request){
984 event.type = FF_REFRESH_EVENT;
985 event.user.data1 = opaque;
988 SDL_PushEvent(&event);
990 //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
991 usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
996 /* get the current audio clock value */
997 static double get_audio_clock(VideoState *is)
1000 int hw_buf_size, bytes_per_sec;
1001 pts = is->audio_clock;
1002 hw_buf_size = audio_write_get_buf_size(is);
1005 bytes_per_sec = is->audio_st->codec->sample_rate *
1006 2 * is->audio_st->codec->channels;
1009 pts -= (double)hw_buf_size / bytes_per_sec;
1013 /* get the current video clock value */
1014 static double get_video_clock(VideoState *is)
1017 return is->video_current_pts;
1019 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1023 /* get the current external clock value */
1024 static double get_external_clock(VideoState *is)
1028 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1031 /* get the current master clock value */
1032 static double get_master_clock(VideoState *is)
1036 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1038 val = get_video_clock(is);
1040 val = get_audio_clock(is);
1041 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1043 val = get_audio_clock(is);
1045 val = get_video_clock(is);
1047 val = get_external_clock(is);
1052 /* seek in the stream */
1053 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1055 if (!is->seek_req) {
1058 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1060 is->seek_flags |= AVSEEK_FLAG_BYTE;
1065 /* pause or resume the video */
1066 static void stream_toggle_pause(VideoState *is)
1069 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1070 if(is->read_pause_return != AVERROR(ENOSYS)){
1071 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1073 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1075 is->paused = !is->paused;
1078 static double compute_target_time(double frame_current_pts, VideoState *is)
1080 double delay, sync_threshold, diff;
1082 /* compute nominal delay */
1083 delay = frame_current_pts - is->frame_last_pts;
1084 if (delay <= 0 || delay >= 10.0) {
1085 /* if incorrect delay, use previous one */
1086 delay = is->frame_last_delay;
1088 is->frame_last_delay = delay;
1090 is->frame_last_pts = frame_current_pts;
1092 /* update delay to follow master synchronisation source */
1093 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1094 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1095 /* if video is slave, we try to correct big delays by
1096 duplicating or deleting a frame */
1097 diff = get_video_clock(is) - get_master_clock(is);
1099 /* skip or repeat frame. We take into account the
1100 delay to compute the threshold. I still don't know
1101 if it is the best guess */
1102 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1103 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1104 if (diff <= -sync_threshold)
1106 else if (diff >= sync_threshold)
1110 is->frame_timer += delay;
1111 #if defined(DEBUG_SYNC)
1112 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1113 delay, actual_delay, frame_current_pts, -diff);
1116 return is->frame_timer;
1119 /* called to display each frame */
1120 static void video_refresh_timer(void *opaque)
1122 VideoState *is = opaque;
1125 SubPicture *sp, *sp2;
1129 if (is->pictq_size == 0) {
1130 //nothing to do, no picture to display in the que
1132 double time= av_gettime()/1000000.0;
1134 /* dequeue the picture */
1135 vp = &is->pictq[is->pictq_rindex];
1137 if(time < vp->target_clock)
1139 /* update current video pts */
1140 is->video_current_pts = vp->pts;
1141 is->video_current_pts_drift = is->video_current_pts - time;
1142 is->video_current_pos = vp->pos;
1143 if(is->pictq_size > 1){
1144 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1145 assert(nextvp->target_clock >= vp->target_clock);
1146 next_target= nextvp->target_clock;
1148 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1150 if(framedrop && time > next_target){
1151 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1152 if(is->pictq_size > 1 || time > next_target + 0.5){
1153 /* update queue size and signal for next picture */
1154 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1155 is->pictq_rindex = 0;
1157 SDL_LockMutex(is->pictq_mutex);
1159 SDL_CondSignal(is->pictq_cond);
1160 SDL_UnlockMutex(is->pictq_mutex);
1165 if(is->subtitle_st) {
1166 if (is->subtitle_stream_changed) {
1167 SDL_LockMutex(is->subpq_mutex);
1169 while (is->subpq_size) {
1170 free_subpicture(&is->subpq[is->subpq_rindex]);
1172 /* update queue size and signal for next picture */
1173 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1174 is->subpq_rindex = 0;
1178 is->subtitle_stream_changed = 0;
1180 SDL_CondSignal(is->subpq_cond);
1181 SDL_UnlockMutex(is->subpq_mutex);
1183 if (is->subpq_size > 0) {
1184 sp = &is->subpq[is->subpq_rindex];
1186 if (is->subpq_size > 1)
1187 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1191 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1192 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1194 free_subpicture(sp);
1196 /* update queue size and signal for next picture */
1197 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1198 is->subpq_rindex = 0;
1200 SDL_LockMutex(is->subpq_mutex);
1202 SDL_CondSignal(is->subpq_cond);
1203 SDL_UnlockMutex(is->subpq_mutex);
1209 /* display picture */
1210 if (!display_disable)
1213 /* update queue size and signal for next picture */
1214 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1215 is->pictq_rindex = 0;
1217 SDL_LockMutex(is->pictq_mutex);
1219 SDL_CondSignal(is->pictq_cond);
1220 SDL_UnlockMutex(is->pictq_mutex);
1222 } else if (is->audio_st) {
1223 /* draw the next audio frame */
1225 /* if only audio stream, then display the audio bars (better
1226 than nothing, just to test the implementation */
1228 /* display picture */
1229 if (!display_disable)
1233 static int64_t last_time;
1235 int aqsize, vqsize, sqsize;
1238 cur_time = av_gettime();
1239 if (!last_time || (cur_time - last_time) >= 30000) {
1244 aqsize = is->audioq.size;
1246 vqsize = is->videoq.size;
1247 if (is->subtitle_st)
1248 sqsize = is->subtitleq.size;
1250 if (is->audio_st && is->video_st)
1251 av_diff = get_audio_clock(is) - get_video_clock(is);
1252 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1253 get_master_clock(is),
1255 FFMAX(is->skip_frames-1, 0),
1259 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1260 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1262 last_time = cur_time;
1267 static void stream_close(VideoState *is)
1271 /* XXX: use a special url_shutdown call to abort parse cleanly */
1272 is->abort_request = 1;
1273 SDL_WaitThread(is->parse_tid, NULL);
1274 SDL_WaitThread(is->refresh_tid, NULL);
1276 /* free all pictures */
1277 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1281 avfilter_unref_buffer(vp->picref);
1286 SDL_FreeYUVOverlay(vp->bmp);
1290 SDL_DestroyMutex(is->pictq_mutex);
1291 SDL_DestroyCond(is->pictq_cond);
1292 SDL_DestroyMutex(is->subpq_mutex);
1293 SDL_DestroyCond(is->subpq_cond);
1294 #if !CONFIG_AVFILTER
1295 if (is->img_convert_ctx)
1296 sws_freeContext(is->img_convert_ctx);
1301 static void do_exit(void)
1304 stream_close(cur_stream);
1314 av_log(NULL, AV_LOG_QUIET, "");
1318 /* allocate a picture (needs to do that in main thread to avoid
1319 potential locking problems */
1320 static void alloc_picture(void *opaque)
1322 VideoState *is = opaque;
1325 vp = &is->pictq[is->pictq_windex];
1328 SDL_FreeYUVOverlay(vp->bmp);
1332 avfilter_unref_buffer(vp->picref);
1335 vp->width = is->out_video_filter->inputs[0]->w;
1336 vp->height = is->out_video_filter->inputs[0]->h;
1337 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1339 vp->width = is->video_st->codec->width;
1340 vp->height = is->video_st->codec->height;
1341 vp->pix_fmt = is->video_st->codec->pix_fmt;
1344 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1347 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1348 /* SDL allocates a buffer smaller than requested if the video
1349 * overlay hardware is unable to support the requested size. */
1350 fprintf(stderr, "Error: the video system does not support an image\n"
1351 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1352 "to reduce the image size.\n", vp->width, vp->height );
1356 SDL_LockMutex(is->pictq_mutex);
1358 SDL_CondSignal(is->pictq_cond);
1359 SDL_UnlockMutex(is->pictq_mutex);
1364 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1366 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1370 /* wait until we have space to put a new picture */
1371 SDL_LockMutex(is->pictq_mutex);
1373 if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1374 is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1376 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1377 !is->videoq.abort_request) {
1378 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1380 SDL_UnlockMutex(is->pictq_mutex);
1382 if (is->videoq.abort_request)
1385 vp = &is->pictq[is->pictq_windex];
1387 /* alloc or resize hardware picture buffer */
1390 vp->width != is->out_video_filter->inputs[0]->w ||
1391 vp->height != is->out_video_filter->inputs[0]->h) {
1393 vp->width != is->video_st->codec->width ||
1394 vp->height != is->video_st->codec->height) {
1400 /* the allocation must be done in the main thread to avoid
1402 event.type = FF_ALLOC_EVENT;
1403 event.user.data1 = is;
1404 SDL_PushEvent(&event);
1406 /* wait until the picture is allocated */
1407 SDL_LockMutex(is->pictq_mutex);
1408 while (!vp->allocated && !is->videoq.abort_request) {
1409 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1411 SDL_UnlockMutex(is->pictq_mutex);
1413 if (is->videoq.abort_request)
1417 /* if the frame is not skipped, then display it */
1422 avfilter_unref_buffer(vp->picref);
1423 vp->picref = src_frame->opaque;
1426 /* get a pointer on the bitmap */
1427 SDL_LockYUVOverlay (vp->bmp);
1429 memset(&pict,0,sizeof(AVPicture));
1430 pict.data[0] = vp->bmp->pixels[0];
1431 pict.data[1] = vp->bmp->pixels[2];
1432 pict.data[2] = vp->bmp->pixels[1];
1434 pict.linesize[0] = vp->bmp->pitches[0];
1435 pict.linesize[1] = vp->bmp->pitches[2];
1436 pict.linesize[2] = vp->bmp->pitches[1];
1439 //FIXME use direct rendering
1440 av_picture_copy(&pict, (AVPicture *)src_frame,
1441 vp->pix_fmt, vp->width, vp->height);
1443 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1444 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1445 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1446 PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1447 if (is->img_convert_ctx == NULL) {
1448 fprintf(stderr, "Cannot initialize the conversion context\n");
1451 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1452 0, vp->height, pict.data, pict.linesize);
1454 /* update the bitmap content */
1455 SDL_UnlockYUVOverlay(vp->bmp);
1460 /* now we can update the picture count */
1461 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1462 is->pictq_windex = 0;
1463 SDL_LockMutex(is->pictq_mutex);
1464 vp->target_clock= compute_target_time(vp->pts, is);
1467 SDL_UnlockMutex(is->pictq_mutex);
1473 * compute the exact PTS for the picture if it is omitted in the stream
1474 * @param pts1 the dts of the pkt / pts of the frame
1476 static int output_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1478 double frame_delay, pts;
1483 /* update video clock with pts, if present */
1484 is->video_clock = pts;
1486 pts = is->video_clock;
1488 /* update video clock for next frame */
1489 frame_delay = av_q2d(is->video_st->codec->time_base);
1490 /* for MPEG2, the frame can be repeated, so we update the
1491 clock accordingly */
1492 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1493 is->video_clock += frame_delay;
1495 #if defined(DEBUG_SYNC) && 0
1496 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1497 av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1499 return queue_picture(is, src_frame, pts, pos);
1502 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1504 int len1, got_picture, i;
1506 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1509 if (pkt->data == flush_pkt.data) {
1510 avcodec_flush_buffers(is->video_st->codec);
1512 SDL_LockMutex(is->pictq_mutex);
1513 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1514 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1515 is->pictq[i].target_clock= 0;
1517 while (is->pictq_size && !is->videoq.abort_request) {
1518 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1520 is->video_current_pos = -1;
1521 SDL_UnlockMutex(is->pictq_mutex);
1523 is->frame_last_pts = AV_NOPTS_VALUE;
1524 is->frame_last_delay = 0;
1525 is->frame_timer = (double)av_gettime() / 1000000.0;
1526 is->skip_frames = 1;
1527 is->skip_frames_index = 0;
1531 len1 = avcodec_decode_video2(is->video_st->codec,
1532 frame, &got_picture,
1536 if (decoder_reorder_pts == -1) {
1537 *pts = frame->best_effort_timestamp;
1538 } else if (decoder_reorder_pts) {
1539 *pts = frame->pkt_pts;
1541 *pts = frame->pkt_dts;
1544 if (*pts == AV_NOPTS_VALUE) {
1548 is->skip_frames_index += 1;
1549 if(is->skip_frames_index >= is->skip_frames){
1550 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1565 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1567 AVFilterContext *ctx = codec->opaque;
1568 AVFilterBufferRef *ref;
1569 int perms = AV_PERM_WRITE;
1570 int i, w, h, stride[4];
1574 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1576 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1577 perms |= AV_PERM_NEG_LINESIZES;
1579 if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1580 if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1581 if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1582 if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1584 if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1589 if(av_image_check_size(w, h, 0, codec))
1592 avcodec_align_dimensions2(codec, &w, &h, stride);
1593 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1597 if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1600 pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1+1;
1601 ref->video->w = codec->width;
1602 ref->video->h = codec->height;
1603 for(i = 0; i < 4; i ++) {
1604 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1605 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1608 ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1610 pic->data[i] = ref->data[i];
1611 pic->linesize[i] = ref->linesize[i];
1615 pic->type = FF_BUFFER_TYPE_USER;
1616 pic->reordered_opaque = codec->reordered_opaque;
1617 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1618 else pic->pkt_pts = AV_NOPTS_VALUE;
1622 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1624 memset(pic->data, 0, sizeof(pic->data));
1625 avfilter_unref_buffer(pic->opaque);
1628 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1630 AVFilterBufferRef *ref = pic->opaque;
1632 if (pic->data[0] == NULL) {
1633 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1634 return codec->get_buffer(codec, pic);
1637 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1638 (codec->pix_fmt != ref->format)) {
1639 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1643 pic->reordered_opaque = codec->reordered_opaque;
1644 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1645 else pic->pkt_pts = AV_NOPTS_VALUE;
1649 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1651 FilterPriv *priv = ctx->priv;
1652 AVCodecContext *codec;
1653 if(!opaque) return -1;
1656 codec = priv->is->video_st->codec;
1657 codec->opaque = ctx;
1658 if((codec->codec->capabilities & CODEC_CAP_DR1)
1660 codec->flags |= CODEC_FLAG_EMU_EDGE;
1662 codec->get_buffer = input_get_buffer;
1663 codec->release_buffer = input_release_buffer;
1664 codec->reget_buffer = input_reget_buffer;
1665 codec->thread_safe_callbacks = 1;
1668 priv->frame = avcodec_alloc_frame();
1673 static void input_uninit(AVFilterContext *ctx)
1675 FilterPriv *priv = ctx->priv;
1676 av_free(priv->frame);
1679 static int input_request_frame(AVFilterLink *link)
1681 FilterPriv *priv = link->src->priv;
1682 AVFilterBufferRef *picref;
1687 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1688 av_free_packet(&pkt);
1693 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1695 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1696 av_image_copy(picref->data, picref->linesize,
1697 priv->frame->data, priv->frame->linesize,
1698 picref->format, link->w, link->h);
1700 av_free_packet(&pkt);
1703 picref->pos = pkt.pos;
1704 picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1705 avfilter_start_frame(link, picref);
1706 avfilter_draw_slice(link, 0, link->h, 1);
1707 avfilter_end_frame(link);
1712 static int input_query_formats(AVFilterContext *ctx)
1714 FilterPriv *priv = ctx->priv;
1715 enum PixelFormat pix_fmts[] = {
1716 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1719 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1723 static int input_config_props(AVFilterLink *link)
1725 FilterPriv *priv = link->src->priv;
1726 AVCodecContext *c = priv->is->video_st->codec;
1729 link->h = c->height;
1730 link->time_base = priv->is->video_st->time_base;
1735 static AVFilter input_filter =
1737 .name = "ffplay_input",
1739 .priv_size = sizeof(FilterPriv),
1742 .uninit = input_uninit,
1744 .query_formats = input_query_formats,
1746 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1747 .outputs = (AVFilterPad[]) {{ .name = "default",
1748 .type = AVMEDIA_TYPE_VIDEO,
1749 .request_frame = input_request_frame,
1750 .config_props = input_config_props, },
1754 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1756 char sws_flags_str[128];
1758 FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1759 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1760 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1761 graph->scale_sws_opts = av_strdup(sws_flags_str);
1763 if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1764 NULL, is, graph)) < 0)
1766 if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1767 NULL, &ffsink_ctx, graph)) < 0)
1771 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1772 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
1774 outputs->name = av_strdup("in");
1775 outputs->filter_ctx = filt_src;
1776 outputs->pad_idx = 0;
1777 outputs->next = NULL;
1779 inputs->name = av_strdup("out");
1780 inputs->filter_ctx = filt_out;
1781 inputs->pad_idx = 0;
1782 inputs->next = NULL;
1784 if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1786 av_freep(&vfilters);
1788 if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1792 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1795 is->out_video_filter = filt_out;
1800 #endif /* CONFIG_AVFILTER */
1802 static int video_thread(void *arg)
1804 VideoState *is = arg;
1805 AVFrame *frame= avcodec_alloc_frame();
1806 int64_t pts_int, pos;
1811 AVFilterGraph *graph = avfilter_graph_alloc();
1812 AVFilterContext *filt_out = NULL;
1814 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1816 filt_out = is->out_video_filter;
1820 #if !CONFIG_AVFILTER
1823 AVFilterBufferRef *picref;
1826 while (is->paused && !is->videoq.abort_request)
1829 ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1831 pts_int = picref->pts;
1833 frame->opaque = picref;
1836 if (av_cmp_q(tb, is->video_st->time_base)) {
1837 av_unused int64_t pts1 = pts_int;
1838 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1839 av_dlog(NULL, "video_thread(): "
1840 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1841 tb.num, tb.den, pts1,
1842 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1845 ret = get_video_frame(is, frame, &pts_int, &pkt);
1849 if (ret < 0) goto the_end;
1854 pts = pts_int*av_q2d(is->video_st->time_base);
1856 ret = output_picture(is, frame, pts, pos);
1857 #if !CONFIG_AVFILTER
1858 av_free_packet(&pkt);
1865 stream_toggle_pause(cur_stream);
1869 avfilter_graph_free(&graph);
1875 static int subtitle_thread(void *arg)
1877 VideoState *is = arg;
1879 AVPacket pkt1, *pkt = &pkt1;
1880 int len1, got_subtitle;
1883 int r, g, b, y, u, v, a;
1886 while (is->paused && !is->subtitleq.abort_request) {
1889 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1892 if(pkt->data == flush_pkt.data){
1893 avcodec_flush_buffers(is->subtitle_st->codec);
1896 SDL_LockMutex(is->subpq_mutex);
1897 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1898 !is->subtitleq.abort_request) {
1899 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1901 SDL_UnlockMutex(is->subpq_mutex);
1903 if (is->subtitleq.abort_request)
1906 sp = &is->subpq[is->subpq_windex];
1908 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1909 this packet, if any */
1911 if (pkt->pts != AV_NOPTS_VALUE)
1912 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1914 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1915 &sp->sub, &got_subtitle,
1919 if (got_subtitle && sp->sub.format == 0) {
1922 for (i = 0; i < sp->sub.num_rects; i++)
1924 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1926 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1927 y = RGB_TO_Y_CCIR(r, g, b);
1928 u = RGB_TO_U_CCIR(r, g, b, 0);
1929 v = RGB_TO_V_CCIR(r, g, b, 0);
1930 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1934 /* now we can update the picture count */
1935 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1936 is->subpq_windex = 0;
1937 SDL_LockMutex(is->subpq_mutex);
1939 SDL_UnlockMutex(is->subpq_mutex);
1941 av_free_packet(pkt);
1944 // stream_toggle_pause(cur_stream);
1950 /* copy samples for viewing in editor window */
1951 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1953 int size, len, channels;
1955 channels = is->audio_st->codec->channels;
1957 size = samples_size / sizeof(short);
1959 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1962 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1964 is->sample_array_index += len;
1965 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1966 is->sample_array_index = 0;
1971 /* return the new audio buffer size (samples can be added or deleted
1972 to get better sync if video or external master clock) */
1973 static int synchronize_audio(VideoState *is, short *samples,
1974 int samples_size1, double pts)
1976 int n, samples_size;
1979 n = 2 * is->audio_st->codec->channels;
1980 samples_size = samples_size1;
1982 /* if not master, then we try to remove or add samples to correct the clock */
1983 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1984 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1985 double diff, avg_diff;
1986 int wanted_size, min_size, max_size, nb_samples;
1988 ref_clock = get_master_clock(is);
1989 diff = get_audio_clock(is) - ref_clock;
1991 if (diff < AV_NOSYNC_THRESHOLD) {
1992 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1993 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1994 /* not enough measures to have a correct estimate */
1995 is->audio_diff_avg_count++;
1997 /* estimate the A-V difference */
1998 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2000 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2001 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2002 nb_samples = samples_size / n;
2004 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2005 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2006 if (wanted_size < min_size)
2007 wanted_size = min_size;
2008 else if (wanted_size > max_size)
2009 wanted_size = max_size;
2011 /* add or remove samples to correction the synchro */
2012 if (wanted_size < samples_size) {
2013 /* remove samples */
2014 samples_size = wanted_size;
2015 } else if (wanted_size > samples_size) {
2016 uint8_t *samples_end, *q;
2020 nb = (samples_size - wanted_size);
2021 samples_end = (uint8_t *)samples + samples_size - n;
2022 q = samples_end + n;
2024 memcpy(q, samples_end, n);
2028 samples_size = wanted_size;
2032 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2033 diff, avg_diff, samples_size - samples_size1,
2034 is->audio_clock, is->video_clock, is->audio_diff_threshold);
2038 /* too big difference : may be initial PTS errors, so
2040 is->audio_diff_avg_count = 0;
2041 is->audio_diff_cum = 0;
2045 return samples_size;
2048 /* decode one audio frame and returns its uncompressed size */
2049 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2051 AVPacket *pkt_temp = &is->audio_pkt_temp;
2052 AVPacket *pkt = &is->audio_pkt;
2053 AVCodecContext *dec= is->audio_st->codec;
2054 int n, len1, data_size;
2058 /* NOTE: the audio packet can contain several frames */
2059 while (pkt_temp->size > 0) {
2060 data_size = sizeof(is->audio_buf1);
2061 len1 = avcodec_decode_audio3(dec,
2062 (int16_t *)is->audio_buf1, &data_size,
2065 /* if error, we skip the frame */
2070 pkt_temp->data += len1;
2071 pkt_temp->size -= len1;
2075 if (dec->sample_fmt != is->audio_src_fmt) {
2076 if (is->reformat_ctx)
2077 av_audio_convert_free(is->reformat_ctx);
2078 is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2079 dec->sample_fmt, 1, NULL, 0);
2080 if (!is->reformat_ctx) {
2081 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2082 av_get_sample_fmt_name(dec->sample_fmt),
2083 av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2086 is->audio_src_fmt= dec->sample_fmt;
2089 if (is->reformat_ctx) {
2090 const void *ibuf[6]= {is->audio_buf1};
2091 void *obuf[6]= {is->audio_buf2};
2092 int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2093 int ostride[6]= {2};
2094 int len= data_size/istride[0];
2095 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2096 printf("av_audio_convert() failed\n");
2099 is->audio_buf= is->audio_buf2;
2100 /* FIXME: existing code assume that data_size equals framesize*channels*2
2101 remove this legacy cruft */
2104 is->audio_buf= is->audio_buf1;
2107 /* if no pts, then compute it */
2108 pts = is->audio_clock;
2110 n = 2 * dec->channels;
2111 is->audio_clock += (double)data_size /
2112 (double)(n * dec->sample_rate);
2113 #if defined(DEBUG_SYNC)
2115 static double last_clock;
2116 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2117 is->audio_clock - last_clock,
2118 is->audio_clock, pts);
2119 last_clock = is->audio_clock;
2125 /* free the current packet */
2127 av_free_packet(pkt);
2129 if (is->paused || is->audioq.abort_request) {
2133 /* read next packet */
2134 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2136 if(pkt->data == flush_pkt.data){
2137 avcodec_flush_buffers(dec);
2141 pkt_temp->data = pkt->data;
2142 pkt_temp->size = pkt->size;
2144 /* if update the audio clock with the pts */
2145 if (pkt->pts != AV_NOPTS_VALUE) {
2146 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2151 /* prepare a new audio buffer */
2152 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2154 VideoState *is = opaque;
2155 int audio_size, len1;
2158 audio_callback_time = av_gettime();
2161 if (is->audio_buf_index >= is->audio_buf_size) {
2162 audio_size = audio_decode_frame(is, &pts);
2163 if (audio_size < 0) {
2164 /* if error, just output silence */
2165 is->audio_buf = is->audio_buf1;
2166 is->audio_buf_size = 1024;
2167 memset(is->audio_buf, 0, is->audio_buf_size);
2169 if (is->show_mode != SHOW_MODE_VIDEO)
2170 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2171 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2173 is->audio_buf_size = audio_size;
2175 is->audio_buf_index = 0;
2177 len1 = is->audio_buf_size - is->audio_buf_index;
2180 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2183 is->audio_buf_index += len1;
2187 /* open a given stream. Return 0 if OK */
2188 static int stream_component_open(VideoState *is, int stream_index)
2190 AVFormatContext *ic = is->ic;
2191 AVCodecContext *avctx;
2193 SDL_AudioSpec wanted_spec, spec;
2195 if (stream_index < 0 || stream_index >= ic->nb_streams)
2197 avctx = ic->streams[stream_index]->codec;
2199 /* prepare audio output */
2200 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2201 if (avctx->channels > 0) {
2202 avctx->request_channels = FFMIN(2, avctx->channels);
2204 avctx->request_channels = 2;
2208 codec = avcodec_find_decoder(avctx->codec_id);
2209 avctx->debug_mv = debug_mv;
2210 avctx->debug = debug;
2211 avctx->workaround_bugs = workaround_bugs;
2212 avctx->lowres = lowres;
2213 if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2214 avctx->idct_algo= idct;
2215 if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2216 avctx->skip_frame= skip_frame;
2217 avctx->skip_idct= skip_idct;
2218 avctx->skip_loop_filter= skip_loop_filter;
2219 avctx->error_recognition= error_recognition;
2220 avctx->error_concealment= error_concealment;
2221 avctx->thread_count= thread_count;
2223 set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2226 avcodec_open(avctx, codec) < 0)
2229 /* prepare audio output */
2230 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2231 wanted_spec.freq = avctx->sample_rate;
2232 wanted_spec.format = AUDIO_S16SYS;
2233 wanted_spec.channels = avctx->channels;
2234 wanted_spec.silence = 0;
2235 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2236 wanted_spec.callback = sdl_audio_callback;
2237 wanted_spec.userdata = is;
2238 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2239 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2242 is->audio_hw_buf_size = spec.size;
2243 is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2246 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2247 switch(avctx->codec_type) {
2248 case AVMEDIA_TYPE_AUDIO:
2249 is->audio_stream = stream_index;
2250 is->audio_st = ic->streams[stream_index];
2251 is->audio_buf_size = 0;
2252 is->audio_buf_index = 0;
2254 /* init averaging filter */
2255 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2256 is->audio_diff_avg_count = 0;
2257 /* since we do not have a precise anough audio fifo fullness,
2258 we correct audio sync only if larger than this threshold */
2259 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2261 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2262 packet_queue_init(&is->audioq);
2265 case AVMEDIA_TYPE_VIDEO:
2266 is->video_stream = stream_index;
2267 is->video_st = ic->streams[stream_index];
2269 // is->video_current_pts_time = av_gettime();
2271 packet_queue_init(&is->videoq);
2272 is->video_tid = SDL_CreateThread(video_thread, is);
2274 case AVMEDIA_TYPE_SUBTITLE:
2275 is->subtitle_stream = stream_index;
2276 is->subtitle_st = ic->streams[stream_index];
2277 packet_queue_init(&is->subtitleq);
2279 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2287 static void stream_component_close(VideoState *is, int stream_index)
2289 AVFormatContext *ic = is->ic;
2290 AVCodecContext *avctx;
2292 if (stream_index < 0 || stream_index >= ic->nb_streams)
2294 avctx = ic->streams[stream_index]->codec;
2296 switch(avctx->codec_type) {
2297 case AVMEDIA_TYPE_AUDIO:
2298 packet_queue_abort(&is->audioq);
2302 packet_queue_end(&is->audioq);
2303 if (is->reformat_ctx)
2304 av_audio_convert_free(is->reformat_ctx);
2305 is->reformat_ctx = NULL;
2307 case AVMEDIA_TYPE_VIDEO:
2308 packet_queue_abort(&is->videoq);
2310 /* note: we also signal this mutex to make sure we deblock the
2311 video thread in all cases */
2312 SDL_LockMutex(is->pictq_mutex);
2313 SDL_CondSignal(is->pictq_cond);
2314 SDL_UnlockMutex(is->pictq_mutex);
2316 SDL_WaitThread(is->video_tid, NULL);
2318 packet_queue_end(&is->videoq);
2320 case AVMEDIA_TYPE_SUBTITLE:
2321 packet_queue_abort(&is->subtitleq);
2323 /* note: we also signal this mutex to make sure we deblock the
2324 video thread in all cases */
2325 SDL_LockMutex(is->subpq_mutex);
2326 is->subtitle_stream_changed = 1;
2328 SDL_CondSignal(is->subpq_cond);
2329 SDL_UnlockMutex(is->subpq_mutex);
2331 SDL_WaitThread(is->subtitle_tid, NULL);
2333 packet_queue_end(&is->subtitleq);
2339 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2340 avcodec_close(avctx);
2341 switch(avctx->codec_type) {
2342 case AVMEDIA_TYPE_AUDIO:
2343 is->audio_st = NULL;
2344 is->audio_stream = -1;
2346 case AVMEDIA_TYPE_VIDEO:
2347 is->video_st = NULL;
2348 is->video_stream = -1;
2350 case AVMEDIA_TYPE_SUBTITLE:
2351 is->subtitle_st = NULL;
2352 is->subtitle_stream = -1;
2359 /* since we have only one decoding thread, we can use a global
2360 variable instead of a thread local variable */
2361 static VideoState *global_video_state;
2363 static int decode_interrupt_cb(void)
2365 return (global_video_state && global_video_state->abort_request);
2368 /* this thread gets the stream from the disk or the network */
2369 static int decode_thread(void *arg)
2371 VideoState *is = arg;
2372 AVFormatContext *ic;
2374 int st_index[AVMEDIA_TYPE_NB];
2375 AVPacket pkt1, *pkt = &pkt1;
2376 AVFormatParameters params, *ap = ¶ms;
2378 int pkt_in_play_range = 0;
2380 ic = avformat_alloc_context();
2382 memset(st_index, -1, sizeof(st_index));
2383 is->video_stream = -1;
2384 is->audio_stream = -1;
2385 is->subtitle_stream = -1;
2387 global_video_state = is;
2388 avio_set_interrupt_cb(decode_interrupt_cb);
2390 memset(ap, 0, sizeof(*ap));
2392 ap->prealloced_context = 1;
2393 ap->width = frame_width;
2394 ap->height= frame_height;
2395 ap->time_base= (AVRational){1, 25};
2396 ap->pix_fmt = frame_pix_fmt;
2398 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2400 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2402 print_error(is->filename, err);
2409 ic->flags |= AVFMT_FLAG_GENPTS;
2411 err = av_find_stream_info(ic);
2413 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2418 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2421 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2423 /* if seeking requested, we execute it */
2424 if (start_time != AV_NOPTS_VALUE) {
2427 timestamp = start_time;
2428 /* add the stream start time */
2429 if (ic->start_time != AV_NOPTS_VALUE)
2430 timestamp += ic->start_time;
2431 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2433 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2434 is->filename, (double)timestamp / AV_TIME_BASE);
2438 for (i = 0; i < ic->nb_streams; i++)
2439 ic->streams[i]->discard = AVDISCARD_ALL;
2441 st_index[AVMEDIA_TYPE_VIDEO] =
2442 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2443 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2445 st_index[AVMEDIA_TYPE_AUDIO] =
2446 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2447 wanted_stream[AVMEDIA_TYPE_AUDIO],
2448 st_index[AVMEDIA_TYPE_VIDEO],
2451 st_index[AVMEDIA_TYPE_SUBTITLE] =
2452 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2453 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2454 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2455 st_index[AVMEDIA_TYPE_AUDIO] :
2456 st_index[AVMEDIA_TYPE_VIDEO]),
2459 av_dump_format(ic, 0, is->filename, 0);
2462 is->show_mode = show_mode;
2464 /* open the streams */
2465 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2466 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2470 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2471 ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2473 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2475 if (!display_disable)
2476 is->show_mode = SHOW_MODE_RDFT;
2479 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2480 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2483 if (is->video_stream < 0 && is->audio_stream < 0) {
2484 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2490 if (is->abort_request)
2492 if (is->paused != is->last_paused) {
2493 is->last_paused = is->paused;
2495 is->read_pause_return= av_read_pause(ic);
2499 #if CONFIG_RTSP_DEMUXER
2500 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2501 /* wait 10 ms to avoid trying to get another packet */
2508 int64_t seek_target= is->seek_pos;
2509 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2510 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2511 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2512 // of the seek_pos/seek_rel variables
2514 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2516 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2518 if (is->audio_stream >= 0) {
2519 packet_queue_flush(&is->audioq);
2520 packet_queue_put(&is->audioq, &flush_pkt);
2522 if (is->subtitle_stream >= 0) {
2523 packet_queue_flush(&is->subtitleq);
2524 packet_queue_put(&is->subtitleq, &flush_pkt);
2526 if (is->video_stream >= 0) {
2527 packet_queue_flush(&is->videoq);
2528 packet_queue_put(&is->videoq, &flush_pkt);
2535 /* if the queue are full, no need to read more */
2536 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2537 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2538 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2539 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2545 if(is->video_stream >= 0){
2546 av_init_packet(pkt);
2549 pkt->stream_index= is->video_stream;
2550 packet_queue_put(&is->videoq, pkt);
2553 if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2554 if(loop!=1 && (!loop || --loop)){
2555 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2564 ret = av_read_frame(ic, pkt);
2566 if (ret == AVERROR_EOF || url_feof(ic->pb))
2568 if (ic->pb && ic->pb->error)
2570 SDL_Delay(100); /* wait for user event */
2573 /* check if packet is in play range specified by user, then queue, otherwise discard */
2574 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2575 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2576 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2577 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2578 <= ((double)duration/1000000);
2579 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2580 packet_queue_put(&is->audioq, pkt);
2581 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2582 packet_queue_put(&is->videoq, pkt);
2583 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2584 packet_queue_put(&is->subtitleq, pkt);
2586 av_free_packet(pkt);
2589 /* wait until the end */
2590 while (!is->abort_request) {
2596 /* disable interrupting */
2597 global_video_state = NULL;
2599 /* close each stream */
2600 if (is->audio_stream >= 0)
2601 stream_component_close(is, is->audio_stream);
2602 if (is->video_stream >= 0)
2603 stream_component_close(is, is->video_stream);
2604 if (is->subtitle_stream >= 0)
2605 stream_component_close(is, is->subtitle_stream);
2607 av_close_input_file(is->ic);
2608 is->ic = NULL; /* safety */
2610 avio_set_interrupt_cb(NULL);
2615 event.type = FF_QUIT_EVENT;
2616 event.user.data1 = is;
2617 SDL_PushEvent(&event);
2622 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2626 is = av_mallocz(sizeof(VideoState));
2629 av_strlcpy(is->filename, filename, sizeof(is->filename));
2630 is->iformat = iformat;
2634 /* start video display */
2635 is->pictq_mutex = SDL_CreateMutex();
2636 is->pictq_cond = SDL_CreateCond();
2638 is->subpq_mutex = SDL_CreateMutex();
2639 is->subpq_cond = SDL_CreateCond();
2641 is->av_sync_type = av_sync_type;
2642 is->parse_tid = SDL_CreateThread(decode_thread, is);
2643 if (!is->parse_tid) {
2650 static void stream_cycle_channel(VideoState *is, int codec_type)
2652 AVFormatContext *ic = is->ic;
2653 int start_index, stream_index;
2656 if (codec_type == AVMEDIA_TYPE_VIDEO)
2657 start_index = is->video_stream;
2658 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2659 start_index = is->audio_stream;
2661 start_index = is->subtitle_stream;
2662 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2664 stream_index = start_index;
2666 if (++stream_index >= is->ic->nb_streams)
2668 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2675 if (stream_index == start_index)
2677 st = ic->streams[stream_index];
2678 if (st->codec->codec_type == codec_type) {
2679 /* check that parameters are OK */
2680 switch(codec_type) {
2681 case AVMEDIA_TYPE_AUDIO:
2682 if (st->codec->sample_rate != 0 &&
2683 st->codec->channels != 0)
2686 case AVMEDIA_TYPE_VIDEO:
2687 case AVMEDIA_TYPE_SUBTITLE:
2695 stream_component_close(is, start_index);
2696 stream_component_open(is, stream_index);
2700 static void toggle_full_screen(void)
2702 is_full_screen = !is_full_screen;
2703 if (!fs_screen_width) {
2704 /* use default SDL method */
2705 // SDL_WM_ToggleFullScreen(screen);
2707 video_open(cur_stream);
2710 static void toggle_pause(void)
2713 stream_toggle_pause(cur_stream);
2717 static void step_to_next_frame(void)
2720 /* if the stream is paused unpause it, then step */
2721 if (cur_stream->paused)
2722 stream_toggle_pause(cur_stream);
2727 static void toggle_audio_display(void)
2730 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2731 cur_stream->show_mode = (cur_stream->show_mode + 1) % SHOW_MODE_NB;
2732 fill_rectangle(screen,
2733 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2735 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2739 /* handle an event sent by the GUI */
2740 static void event_loop(void)
2743 double incr, pos, frac;
2747 SDL_WaitEvent(&event);
2748 switch(event.type) {
2750 if (exit_on_keydown) {
2754 switch(event.key.keysym.sym) {
2760 toggle_full_screen();
2766 case SDLK_s: //S: Step to next frame
2767 step_to_next_frame();
2771 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2775 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2779 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2782 toggle_audio_display();
2797 if (seek_by_bytes) {
2798 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2799 pos= cur_stream->video_current_pos;
2800 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2801 pos= cur_stream->audio_pkt.pos;
2803 pos = avio_tell(cur_stream->ic->pb);
2804 if (cur_stream->ic->bit_rate)
2805 incr *= cur_stream->ic->bit_rate / 8.0;
2809 stream_seek(cur_stream, pos, incr, 1);
2811 pos = get_master_clock(cur_stream);
2813 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2821 case SDL_MOUSEBUTTONDOWN:
2822 if (exit_on_mousedown) {
2826 case SDL_MOUSEMOTION:
2827 if(event.type ==SDL_MOUSEBUTTONDOWN){
2830 if(event.motion.state != SDL_PRESSED)
2835 if(seek_by_bytes || cur_stream->ic->duration<=0){
2836 uint64_t size= avio_size(cur_stream->ic->pb);
2837 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2841 int tns, thh, tmm, tss;
2842 tns = cur_stream->ic->duration/1000000LL;
2844 tmm = (tns%3600)/60;
2846 frac = x/cur_stream->width;
2851 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2852 hh, mm, ss, thh, tmm, tss);
2853 ts = frac*cur_stream->ic->duration;
2854 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2855 ts += cur_stream->ic->start_time;
2856 stream_seek(cur_stream, ts, 0, 0);
2860 case SDL_VIDEORESIZE:
2862 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2863 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2864 screen_width = cur_stream->width = event.resize.w;
2865 screen_height= cur_stream->height= event.resize.h;
2872 case FF_ALLOC_EVENT:
2873 video_open(event.user.data1);
2874 alloc_picture(event.user.data1);
2876 case FF_REFRESH_EVENT:
2877 video_refresh_timer(event.user.data1);
2878 cur_stream->refresh=0;
2886 static void opt_frame_size(const char *arg)
2888 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2889 fprintf(stderr, "Incorrect frame size\n");
2892 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2893 fprintf(stderr, "Frame size must be a multiple of 2\n");
2898 static int opt_width(const char *opt, const char *arg)
2900 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2904 static int opt_height(const char *opt, const char *arg)
2906 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2910 static void opt_format(const char *arg)
2912 file_iformat = av_find_input_format(arg);
2913 if (!file_iformat) {
2914 fprintf(stderr, "Unknown input format: %s\n", arg);
2919 static void opt_frame_pix_fmt(const char *arg)
2921 frame_pix_fmt = av_get_pix_fmt(arg);
2924 static int opt_sync(const char *opt, const char *arg)
2926 if (!strcmp(arg, "audio"))
2927 av_sync_type = AV_SYNC_AUDIO_MASTER;
2928 else if (!strcmp(arg, "video"))
2929 av_sync_type = AV_SYNC_VIDEO_MASTER;
2930 else if (!strcmp(arg, "ext"))
2931 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2933 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2939 static int opt_seek(const char *opt, const char *arg)
2941 start_time = parse_time_or_die(opt, arg, 1);
2945 static int opt_duration(const char *opt, const char *arg)
2947 duration = parse_time_or_die(opt, arg, 1);
2951 static int opt_debug(const char *opt, const char *arg)
2953 av_log_set_level(99);
2954 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2958 static int opt_vismv(const char *opt, const char *arg)
2960 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2964 static int opt_thread_count(const char *opt, const char *arg)
2966 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2968 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2973 static int opt_show_mode(const char *opt, const char *arg)
2975 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
2976 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
2977 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
2978 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
2982 static const OptionDef options[] = {
2983 #include "cmdutils_common_opts.h"
2984 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
2985 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
2986 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2987 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2988 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2989 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2990 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
2991 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
2992 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
2993 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2994 { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
2995 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
2996 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2997 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2998 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2999 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3000 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3001 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3002 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3003 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3004 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3005 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3006 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3007 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3008 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3009 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3010 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
3011 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
3012 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
3013 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3014 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3015 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3016 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3017 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3018 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3019 { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3020 { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3022 { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3024 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3025 { "showmode", HAS_ARG | OPT_FUNC2, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
3026 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3027 { "i", OPT_DUMMY, {NULL}, "ffmpeg compatibility dummy option", ""},
3031 static void show_usage(void)
3033 printf("Simple media player\n");
3034 printf("usage: ffplay [options] input_file\n");
3038 static void show_help(void)
3040 av_log_set_callback(log_callback_help);
3042 show_help_options(options, "Main options:\n",
3044 show_help_options(options, "\nAdvanced options:\n",
3045 OPT_EXPERT, OPT_EXPERT);
3047 av_opt_show2(avcodec_opts[0], NULL,
3048 AV_OPT_FLAG_DECODING_PARAM, 0);
3050 av_opt_show2(avformat_opts, NULL,
3051 AV_OPT_FLAG_DECODING_PARAM, 0);
3052 #if !CONFIG_AVFILTER
3054 av_opt_show2(sws_opts, NULL,
3055 AV_OPT_FLAG_ENCODING_PARAM, 0);
3057 printf("\nWhile playing:\n"
3059 "f toggle full screen\n"
3061 "a cycle audio channel\n"
3062 "v cycle video channel\n"
3063 "t cycle subtitle channel\n"
3064 "w show audio waves\n"
3065 "s activate frame-step mode\n"
3066 "left/right seek backward/forward 10 seconds\n"
3067 "down/up seek backward/forward 1 minute\n"
3068 "mouse click seek to percentage in file corresponding to fraction of width\n"
3072 static void opt_input_file(const char *filename)
3074 if (input_filename) {
3075 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3076 filename, input_filename);
3079 if (!strcmp(filename, "-"))
3081 input_filename = filename;
3084 /* Called from the main */
3085 int main(int argc, char **argv)
3089 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3091 /* register all codecs, demux and protocols */
3092 avcodec_register_all();
3094 avdevice_register_all();
3097 avfilter_register_all();
3105 parse_options(argc, argv, options, opt_input_file);
3107 if (!input_filename) {
3109 fprintf(stderr, "An input file must be specified\n");
3110 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3114 if (display_disable) {
3117 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3118 #if !defined(__MINGW32__) && !defined(__APPLE__)
3119 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3121 if (SDL_Init (flags)) {
3122 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3126 if (!display_disable) {
3127 #if HAVE_SDL_VIDEO_SIZE
3128 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3129 fs_screen_width = vi->current_w;
3130 fs_screen_height = vi->current_h;
3134 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3135 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3136 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3138 av_init_packet(&flush_pkt);
3139 flush_pkt.data= "FLUSH";
3141 cur_stream = stream_open(input_filename, file_iformat);