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
25 #include "libavutil/avstring.h"
26 #include "libavutil/pixdesc.h"
27 #include "libavformat/avformat.h"
28 #include "libavdevice/avdevice.h"
29 #include "libswscale/swscale.h"
30 #include "libavcodec/audioconvert.h"
31 #include "libavcodec/colorspace.h"
32 #include "libavcodec/opt.h"
33 #include "libavcodec/dsputil.h"
38 #include <SDL_thread.h>
41 #undef main /* We don't want SDL to override our main() */
48 const char program_name[] = "FFplay";
49 const int program_birth_year = 2003;
53 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
54 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
57 /* SDL audio buffer size, in samples. Should be small to have precise
58 A/V sync as SDL does not have hardware buffer fullness info. */
59 #define SDL_AUDIO_BUFFER_SIZE 1024
61 /* no AV sync correction is done if below the AV sync threshold */
62 #define AV_SYNC_THRESHOLD 0.01
63 /* no AV correction is done if too big error */
64 #define AV_NOSYNC_THRESHOLD 10.0
66 /* maximum audio speed change to get correct sync */
67 #define SAMPLE_CORRECTION_PERCENT_MAX 10
69 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
70 #define AUDIO_DIFF_AVG_NB 20
72 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
73 #define SAMPLE_ARRAY_SIZE (2*65536)
75 static int sws_flags = SWS_BICUBIC;
77 typedef struct PacketQueue {
78 AVPacketList *first_pkt, *last_pkt;
86 #define VIDEO_PICTURE_QUEUE_SIZE 1
87 #define SUBPICTURE_QUEUE_SIZE 4
89 typedef struct VideoPicture {
90 double pts; ///<presentation time stamp for this picture
91 int64_t pos; ///<byte position in file
93 int width, height; /* source height & width */
98 typedef struct SubPicture {
99 double pts; /* presentation time stamp for this picture */
104 AV_SYNC_AUDIO_MASTER, /* default choice */
105 AV_SYNC_VIDEO_MASTER,
106 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
109 typedef struct VideoState {
110 SDL_Thread *parse_tid;
111 SDL_Thread *video_tid;
112 AVInputFormat *iformat;
121 int read_pause_return;
123 int dtg_active_format;
128 double external_clock; /* external clock base */
129 int64_t external_clock_time;
132 double audio_diff_cum; /* used for AV difference average computation */
133 double audio_diff_avg_coef;
134 double audio_diff_threshold;
135 int audio_diff_avg_count;
138 int audio_hw_buf_size;
139 /* samples output by the codec. we reserve more space for avsync
141 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
142 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
144 unsigned int audio_buf_size; /* in bytes */
145 int audio_buf_index; /* in bytes */
146 AVPacket audio_pkt_temp;
148 enum SampleFormat audio_src_fmt;
149 AVAudioConvert *reformat_ctx;
151 int show_audio; /* if true, display audio samples */
152 int16_t sample_array[SAMPLE_ARRAY_SIZE];
153 int sample_array_index;
159 SDL_Thread *subtitle_tid;
161 int subtitle_stream_changed;
162 AVStream *subtitle_st;
163 PacketQueue subtitleq;
164 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
165 int subpq_size, subpq_rindex, subpq_windex;
166 SDL_mutex *subpq_mutex;
167 SDL_cond *subpq_cond;
170 double frame_last_pts;
171 double frame_last_delay;
172 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
176 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
177 double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
178 int64_t video_current_pos; ///<current displayed file pos
179 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
180 int pictq_size, pictq_rindex, pictq_windex;
181 SDL_mutex *pictq_mutex;
182 SDL_cond *pictq_cond;
183 struct SwsContext *img_convert_ctx;
185 // QETimer *video_timer;
187 int width, height, xleft, ytop;
191 int64_t last_dts_for_fault_detection;
192 int64_t last_pts_for_fault_detection;
196 static void show_help(void);
197 static int audio_write_get_buf_size(VideoState *is);
199 /* options specified by the user */
200 static AVInputFormat *file_iformat;
201 static const char *input_filename;
202 static int fs_screen_width;
203 static int fs_screen_height;
204 static int screen_width = 0;
205 static int screen_height = 0;
206 static int frame_width = 0;
207 static int frame_height = 0;
208 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
209 static int audio_disable;
210 static int video_disable;
211 static int wanted_stream[CODEC_TYPE_NB]={
212 [CODEC_TYPE_AUDIO]=0,
213 [CODEC_TYPE_VIDEO]=0,
214 [CODEC_TYPE_SUBTITLE]=-1,
216 static int seek_by_bytes=-1;
217 static int display_disable;
218 static int show_status = 1;
219 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
220 static int64_t start_time = AV_NOPTS_VALUE;
221 static int debug = 0;
222 static int debug_mv = 0;
224 static int thread_count = 1;
225 static int workaround_bugs = 1;
227 static int genpts = 0;
228 static int lowres = 0;
229 static int idct = FF_IDCT_AUTO;
230 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
231 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
232 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
233 static int error_recognition = FF_ER_CAREFUL;
234 static int error_concealment = 3;
235 static int decoder_reorder_pts= -1;
238 /* current context */
239 static int is_full_screen;
240 static VideoState *cur_stream;
241 static int64_t audio_callback_time;
243 static AVPacket flush_pkt;
245 #define FF_ALLOC_EVENT (SDL_USEREVENT)
246 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
247 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
249 static SDL_Surface *screen;
251 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
253 /* packet queue handling */
254 static void packet_queue_init(PacketQueue *q)
256 memset(q, 0, sizeof(PacketQueue));
257 q->mutex = SDL_CreateMutex();
258 q->cond = SDL_CreateCond();
259 packet_queue_put(q, &flush_pkt);
262 static void packet_queue_flush(PacketQueue *q)
264 AVPacketList *pkt, *pkt1;
266 SDL_LockMutex(q->mutex);
267 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
269 av_free_packet(&pkt->pkt);
276 SDL_UnlockMutex(q->mutex);
279 static void packet_queue_end(PacketQueue *q)
281 packet_queue_flush(q);
282 SDL_DestroyMutex(q->mutex);
283 SDL_DestroyCond(q->cond);
286 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
290 /* duplicate the packet */
291 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
294 pkt1 = av_malloc(sizeof(AVPacketList));
301 SDL_LockMutex(q->mutex);
307 q->last_pkt->next = pkt1;
310 q->size += pkt1->pkt.size + sizeof(*pkt1);
311 /* XXX: should duplicate packet data in DV case */
312 SDL_CondSignal(q->cond);
314 SDL_UnlockMutex(q->mutex);
318 static void packet_queue_abort(PacketQueue *q)
320 SDL_LockMutex(q->mutex);
322 q->abort_request = 1;
324 SDL_CondSignal(q->cond);
326 SDL_UnlockMutex(q->mutex);
329 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
330 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
335 SDL_LockMutex(q->mutex);
338 if (q->abort_request) {
345 q->first_pkt = pkt1->next;
349 q->size -= pkt1->pkt.size + sizeof(*pkt1);
358 SDL_CondWait(q->cond, q->mutex);
361 SDL_UnlockMutex(q->mutex);
365 static inline void fill_rectangle(SDL_Surface *screen,
366 int x, int y, int w, int h, int color)
373 SDL_FillRect(screen, &rect, color);
377 /* draw only the border of a rectangle */
378 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
382 /* fill the background */
386 w2 = s->width - (x + w);
392 h2 = s->height - (y + h);
395 fill_rectangle(screen,
399 fill_rectangle(screen,
400 s->xleft + s->width - w2, s->ytop,
403 fill_rectangle(screen,
404 s->xleft + w1, s->ytop,
405 s->width - w1 - w2, h1,
407 fill_rectangle(screen,
408 s->xleft + w1, s->ytop + s->height - h2,
409 s->width - w1 - w2, h2,
414 #define ALPHA_BLEND(a, oldp, newp, s)\
415 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
417 #define RGBA_IN(r, g, b, a, s)\
419 unsigned int v = ((const uint32_t *)(s))[0];\
420 a = (v >> 24) & 0xff;\
421 r = (v >> 16) & 0xff;\
422 g = (v >> 8) & 0xff;\
426 #define YUVA_IN(y, u, v, a, s, pal)\
428 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
429 a = (val >> 24) & 0xff;\
430 y = (val >> 16) & 0xff;\
431 u = (val >> 8) & 0xff;\
435 #define YUVA_OUT(d, y, u, v, a)\
437 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
443 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
445 int wrap, wrap3, width2, skip2;
446 int y, u, v, a, u1, v1, a1, w, h;
447 uint8_t *lum, *cb, *cr;
450 int dstx, dsty, dstw, dsth;
452 dstw = av_clip(rect->w, 0, imgw);
453 dsth = av_clip(rect->h, 0, imgh);
454 dstx = av_clip(rect->x, 0, imgw - dstw);
455 dsty = av_clip(rect->y, 0, imgh - dsth);
456 lum = dst->data[0] + dsty * dst->linesize[0];
457 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
458 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
460 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
462 wrap = dst->linesize[0];
463 wrap3 = rect->pict.linesize[0];
464 p = rect->pict.data[0];
465 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
473 YUVA_IN(y, u, v, a, p, pal);
474 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
475 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
476 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
482 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
483 YUVA_IN(y, u, v, a, p, pal);
487 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
489 YUVA_IN(y, u, v, a, p + BPP, pal);
493 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
494 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
495 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
502 YUVA_IN(y, u, v, a, p, pal);
503 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
504 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
505 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
509 p += wrap3 - dstw * BPP;
510 lum += wrap - dstw - dstx;
511 cb += dst->linesize[1] - width2 - skip2;
512 cr += dst->linesize[2] - width2 - skip2;
514 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
520 YUVA_IN(y, u, v, a, p, pal);
524 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
527 YUVA_IN(y, u, v, a, p, pal);
531 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
532 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
533 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
539 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
540 YUVA_IN(y, u, v, a, p, pal);
544 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
546 YUVA_IN(y, u, v, a, p + BPP, pal);
550 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
554 YUVA_IN(y, u, v, a, p, pal);
558 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
560 YUVA_IN(y, u, v, a, p + BPP, pal);
564 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
566 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
567 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
571 p += -wrap3 + 2 * BPP;
575 YUVA_IN(y, u, v, a, p, pal);
579 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
582 YUVA_IN(y, u, v, a, p, pal);
586 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
587 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
588 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
594 p += wrap3 + (wrap3 - dstw * BPP);
595 lum += wrap + (wrap - dstw - dstx);
596 cb += dst->linesize[1] - width2 - skip2;
597 cr += dst->linesize[2] - width2 - skip2;
599 /* handle odd height */
606 YUVA_IN(y, u, v, a, p, pal);
607 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
608 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
609 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
615 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
616 YUVA_IN(y, u, v, a, p, pal);
620 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
622 YUVA_IN(y, u, v, a, p + BPP, pal);
626 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
627 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
628 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
635 YUVA_IN(y, u, v, a, p, pal);
636 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
637 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
638 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
643 static void free_subpicture(SubPicture *sp)
647 for (i = 0; i < sp->sub.num_rects; i++)
649 av_freep(&sp->sub.rects[i]->pict.data[0]);
650 av_freep(&sp->sub.rects[i]->pict.data[1]);
651 av_freep(&sp->sub.rects[i]);
654 av_free(sp->sub.rects);
656 memset(&sp->sub, 0, sizeof(AVSubtitle));
659 static void video_image_display(VideoState *is)
665 int width, height, x, y;
669 vp = &is->pictq[is->pictq_rindex];
671 /* XXX: use variable in the frame */
672 if (is->video_st->sample_aspect_ratio.num)
673 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
674 else if (is->video_st->codec->sample_aspect_ratio.num)
675 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
678 if (aspect_ratio <= 0.0)
680 aspect_ratio *= (float)is->video_st->codec->width / is->video_st->codec->height;
681 /* if an active format is indicated, then it overrides the
684 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
685 is->dtg_active_format = is->video_st->codec->dtg_active_format;
686 printf("dtg_active_format=%d\n", is->dtg_active_format);
690 switch(is->video_st->codec->dtg_active_format) {
691 case FF_DTG_AFD_SAME:
696 aspect_ratio = 4.0 / 3.0;
698 case FF_DTG_AFD_16_9:
699 aspect_ratio = 16.0 / 9.0;
701 case FF_DTG_AFD_14_9:
702 aspect_ratio = 14.0 / 9.0;
704 case FF_DTG_AFD_4_3_SP_14_9:
705 aspect_ratio = 14.0 / 9.0;
707 case FF_DTG_AFD_16_9_SP_14_9:
708 aspect_ratio = 14.0 / 9.0;
710 case FF_DTG_AFD_SP_4_3:
711 aspect_ratio = 4.0 / 3.0;
718 if (is->subpq_size > 0)
720 sp = &is->subpq[is->subpq_rindex];
722 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
724 SDL_LockYUVOverlay (vp->bmp);
726 pict.data[0] = vp->bmp->pixels[0];
727 pict.data[1] = vp->bmp->pixels[2];
728 pict.data[2] = vp->bmp->pixels[1];
730 pict.linesize[0] = vp->bmp->pitches[0];
731 pict.linesize[1] = vp->bmp->pitches[2];
732 pict.linesize[2] = vp->bmp->pitches[1];
734 for (i = 0; i < sp->sub.num_rects; i++)
735 blend_subrect(&pict, sp->sub.rects[i],
736 vp->bmp->w, vp->bmp->h);
738 SDL_UnlockYUVOverlay (vp->bmp);
744 /* XXX: we suppose the screen has a 1.0 pixel ratio */
746 width = ((int)rint(height * aspect_ratio)) & ~1;
747 if (width > is->width) {
749 height = ((int)rint(width / aspect_ratio)) & ~1;
751 x = (is->width - width) / 2;
752 y = (is->height - height) / 2;
753 if (!is->no_background) {
754 /* fill the background */
755 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
757 is->no_background = 0;
759 rect.x = is->xleft + x;
760 rect.y = is->ytop + y;
763 SDL_DisplayYUVOverlay(vp->bmp, &rect);
766 fill_rectangle(screen,
767 is->xleft, is->ytop, is->width, is->height,
768 QERGB(0x00, 0x00, 0x00));
773 static inline int compute_mod(int a, int b)
782 static void video_audio_display(VideoState *s)
784 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
785 int ch, channels, h, h2, bgcolor, fgcolor;
787 int rdft_bits, nb_freq;
789 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
791 nb_freq= 1<<(rdft_bits-1);
793 /* compute display index : center on currently output samples */
794 channels = s->audio_st->codec->channels;
795 nb_display_channels = channels;
797 int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
799 delay = audio_write_get_buf_size(s);
802 /* to be more precise, we take into account the time spent since
803 the last buffer computation */
804 if (audio_callback_time) {
805 time_diff = av_gettime() - audio_callback_time;
806 delay += (time_diff * s->audio_st->codec->sample_rate) / 1000000;
809 delay -= data_used / 2;
810 if (delay < data_used)
813 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
814 if(s->show_audio==1){
816 for(i=0; i<1000; i+=channels){
817 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
818 int a= s->sample_array[idx];
819 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
820 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
821 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
823 if(h<score && (b^c)<0){
830 s->last_i_start = i_start;
832 i_start = s->last_i_start;
835 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
836 if(s->show_audio==1){
837 fill_rectangle(screen,
838 s->xleft, s->ytop, s->width, s->height,
841 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
843 /* total height for one channel */
844 h = s->height / nb_display_channels;
845 /* graph height / 2 */
847 for(ch = 0;ch < nb_display_channels; ch++) {
849 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
850 for(x = 0; x < s->width; x++) {
851 y = (s->sample_array[i] * h2) >> 15;
858 fill_rectangle(screen,
859 s->xleft + x, ys, 1, y,
862 if (i >= SAMPLE_ARRAY_SIZE)
863 i -= SAMPLE_ARRAY_SIZE;
867 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
869 for(ch = 1;ch < nb_display_channels; ch++) {
870 y = s->ytop + ch * h;
871 fill_rectangle(screen,
872 s->xleft, y, s->width, 1,
875 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
877 nb_display_channels= FFMIN(nb_display_channels, 2);
878 if(rdft_bits != s->rdft_bits){
879 ff_rdft_end(&s->rdft);
880 ff_rdft_init(&s->rdft, rdft_bits, RDFT);
881 s->rdft_bits= rdft_bits;
884 FFTSample data[2][2*nb_freq];
885 for(ch = 0;ch < nb_display_channels; 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 ff_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= sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0] + data[1][2*y+1]*data[1][2*y+1]));
903 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
905 fill_rectangle(screen,
906 s->xpos, s->height-y, 1, 1,
910 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
912 if(s->xpos >= s->width)
917 static int video_open(VideoState *is){
918 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
921 if(is_full_screen) flags |= SDL_FULLSCREEN;
922 else flags |= SDL_RESIZABLE;
924 if (is_full_screen && fs_screen_width) {
926 h = fs_screen_height;
927 } else if(!is_full_screen && screen_width){
930 }else if (is->video_st && is->video_st->codec->width){
931 w = is->video_st->codec->width;
932 h = is->video_st->codec->height;
938 screen = SDL_SetVideoMode(w, h, 0, flags);
940 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
941 screen = SDL_SetVideoMode(w, h, 24, flags);
944 fprintf(stderr, "SDL: could not set video mode - exiting\n");
947 SDL_WM_SetCaption("FFplay", "FFplay");
949 is->width = screen->w;
950 is->height = screen->h;
955 /* display the current picture, if any */
956 static void video_display(VideoState *is)
959 video_open(cur_stream);
960 if (is->audio_st && is->show_audio)
961 video_audio_display(is);
962 else if (is->video_st)
963 video_image_display(is);
966 static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
969 event.type = FF_REFRESH_EVENT;
970 event.user.data1 = opaque;
971 SDL_PushEvent(&event);
972 return 0; /* 0 means stop timer */
975 /* schedule a video refresh in 'delay' ms */
976 static SDL_TimerID schedule_refresh(VideoState *is, int delay)
978 if(!delay) delay=1; //SDL seems to be buggy when the delay is 0
979 return SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
982 /* get the current audio clock value */
983 static double get_audio_clock(VideoState *is)
986 int hw_buf_size, bytes_per_sec;
987 pts = is->audio_clock;
988 hw_buf_size = audio_write_get_buf_size(is);
991 bytes_per_sec = is->audio_st->codec->sample_rate *
992 2 * is->audio_st->codec->channels;
995 pts -= (double)hw_buf_size / bytes_per_sec;
999 /* get the current video clock value */
1000 static double get_video_clock(VideoState *is)
1003 return is->video_current_pts;
1005 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1009 /* get the current external clock value */
1010 static double get_external_clock(VideoState *is)
1014 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1017 /* get the current master clock value */
1018 static double get_master_clock(VideoState *is)
1022 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1024 val = get_video_clock(is);
1026 val = get_audio_clock(is);
1027 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1029 val = get_audio_clock(is);
1031 val = get_video_clock(is);
1033 val = get_external_clock(is);
1038 /* seek in the stream */
1039 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1041 if (!is->seek_req) {
1044 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1046 is->seek_flags |= AVSEEK_FLAG_BYTE;
1051 /* pause or resume the video */
1052 static void stream_pause(VideoState *is)
1055 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1056 if(is->read_pause_return != AVERROR(ENOSYS)){
1057 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1059 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1061 is->paused = !is->paused;
1064 static double compute_frame_delay(double frame_current_pts, VideoState *is)
1066 double actual_delay, delay, sync_threshold, diff;
1068 /* compute nominal delay */
1069 delay = frame_current_pts - is->frame_last_pts;
1070 if (delay <= 0 || delay >= 10.0) {
1071 /* if incorrect delay, use previous one */
1072 delay = is->frame_last_delay;
1074 is->frame_last_delay = delay;
1076 is->frame_last_pts = frame_current_pts;
1078 /* update delay to follow master synchronisation source */
1079 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1080 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1081 /* if video is slave, we try to correct big delays by
1082 duplicating or deleting a frame */
1083 diff = get_video_clock(is) - get_master_clock(is);
1085 /* skip or repeat frame. We take into account the
1086 delay to compute the threshold. I still don't know
1087 if it is the best guess */
1088 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1089 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1090 if (diff <= -sync_threshold)
1092 else if (diff >= sync_threshold)
1097 is->frame_timer += delay;
1098 /* compute the REAL delay (we need to do that to avoid
1100 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
1101 if (actual_delay < 0.010) {
1102 /* XXX: should skip picture */
1103 actual_delay = 0.010;
1106 #if defined(DEBUG_SYNC)
1107 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1108 delay, actual_delay, frame_current_pts, -diff);
1111 return actual_delay;
1114 /* called to display each frame */
1115 static void video_refresh_timer(void *opaque)
1117 VideoState *is = opaque;
1120 SubPicture *sp, *sp2;
1123 if (is->pictq_size == 0) {
1124 fprintf(stderr, "Internal error detected in the SDL timer\n");
1126 /* dequeue the picture */
1127 vp = &is->pictq[is->pictq_rindex];
1129 /* update current video pts */
1130 is->video_current_pts = vp->pts;
1131 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1132 is->video_current_pos = vp->pos;
1134 if(is->subtitle_st) {
1135 if (is->subtitle_stream_changed) {
1136 SDL_LockMutex(is->subpq_mutex);
1138 while (is->subpq_size) {
1139 free_subpicture(&is->subpq[is->subpq_rindex]);
1141 /* update queue size and signal for next picture */
1142 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1143 is->subpq_rindex = 0;
1147 is->subtitle_stream_changed = 0;
1149 SDL_CondSignal(is->subpq_cond);
1150 SDL_UnlockMutex(is->subpq_mutex);
1152 if (is->subpq_size > 0) {
1153 sp = &is->subpq[is->subpq_rindex];
1155 if (is->subpq_size > 1)
1156 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1160 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1161 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1163 free_subpicture(sp);
1165 /* update queue size and signal for next picture */
1166 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1167 is->subpq_rindex = 0;
1169 SDL_LockMutex(is->subpq_mutex);
1171 SDL_CondSignal(is->subpq_cond);
1172 SDL_UnlockMutex(is->subpq_mutex);
1178 /* display picture */
1181 /* update queue size and signal for next picture */
1182 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1183 is->pictq_rindex = 0;
1185 SDL_LockMutex(is->pictq_mutex);
1188 SDL_CondSignal(is->pictq_cond);
1189 SDL_UnlockMutex(is->pictq_mutex);
1191 } else if (is->audio_st) {
1192 /* draw the next audio frame */
1194 schedule_refresh(is, 40);
1196 /* if only audio stream, then display the audio bars (better
1197 than nothing, just to test the implementation */
1199 /* display picture */
1202 schedule_refresh(is, 100);
1205 static int64_t last_time;
1207 int aqsize, vqsize, sqsize;
1210 cur_time = av_gettime();
1211 if (!last_time || (cur_time - last_time) >= 30000) {
1216 aqsize = is->audioq.size;
1218 vqsize = is->videoq.size;
1219 if (is->subtitle_st)
1220 sqsize = is->subtitleq.size;
1222 if (is->audio_st && is->video_st)
1223 av_diff = get_audio_clock(is) - get_video_clock(is);
1224 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB f=%Ld/%Ld \r",
1225 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize, is->faulty_dts, is->faulty_pts);
1227 last_time = cur_time;
1232 /* allocate a picture (needs to do that in main thread to avoid
1233 potential locking problems */
1234 static void alloc_picture(void *opaque)
1236 VideoState *is = opaque;
1239 vp = &is->pictq[is->pictq_windex];
1242 SDL_FreeYUVOverlay(vp->bmp);
1244 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width,
1245 is->video_st->codec->height,
1248 vp->width = is->video_st->codec->width;
1249 vp->height = is->video_st->codec->height;
1251 SDL_LockMutex(is->pictq_mutex);
1253 SDL_CondSignal(is->pictq_cond);
1254 SDL_UnlockMutex(is->pictq_mutex);
1259 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1261 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1266 /* wait until we have space to put a new picture */
1267 SDL_LockMutex(is->pictq_mutex);
1268 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1269 !is->videoq.abort_request) {
1270 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1272 SDL_UnlockMutex(is->pictq_mutex);
1274 if (is->videoq.abort_request)
1277 vp = &is->pictq[is->pictq_windex];
1279 /* alloc or resize hardware picture buffer */
1281 vp->width != is->video_st->codec->width ||
1282 vp->height != is->video_st->codec->height) {
1287 /* the allocation must be done in the main thread to avoid
1289 event.type = FF_ALLOC_EVENT;
1290 event.user.data1 = is;
1291 SDL_PushEvent(&event);
1293 /* wait until the picture is allocated */
1294 SDL_LockMutex(is->pictq_mutex);
1295 while (!vp->allocated && !is->videoq.abort_request) {
1296 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1298 SDL_UnlockMutex(is->pictq_mutex);
1300 if (is->videoq.abort_request)
1304 /* if the frame is not skipped, then display it */
1308 /* get a pointer on the bitmap */
1309 SDL_LockYUVOverlay (vp->bmp);
1311 dst_pix_fmt = PIX_FMT_YUV420P;
1312 memset(&pict,0,sizeof(AVPicture));
1313 pict.data[0] = vp->bmp->pixels[0];
1314 pict.data[1] = vp->bmp->pixels[2];
1315 pict.data[2] = vp->bmp->pixels[1];
1317 pict.linesize[0] = vp->bmp->pitches[0];
1318 pict.linesize[1] = vp->bmp->pitches[2];
1319 pict.linesize[2] = vp->bmp->pitches[1];
1320 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1321 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1322 is->video_st->codec->width, is->video_st->codec->height,
1323 is->video_st->codec->pix_fmt,
1324 is->video_st->codec->width, is->video_st->codec->height,
1325 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1326 if (is->img_convert_ctx == NULL) {
1327 fprintf(stderr, "Cannot initialize the conversion context\n");
1330 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1331 0, is->video_st->codec->height, pict.data, pict.linesize);
1332 /* update the bitmap content */
1333 SDL_UnlockYUVOverlay(vp->bmp);
1338 /* now we can update the picture count */
1339 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1340 is->pictq_windex = 0;
1341 SDL_LockMutex(is->pictq_mutex);
1343 //We must schedule in a mutex as we must store the timer id before the timer dies or might end up freeing a alraedy freed id
1344 vp->timer_id= schedule_refresh(is, (int)(compute_frame_delay(vp->pts, is) * 1000 + 0.5));
1345 SDL_UnlockMutex(is->pictq_mutex);
1351 * compute the exact PTS for the picture if it is omitted in the stream
1352 * @param pts1 the dts of the pkt / pts of the frame
1354 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1356 double frame_delay, pts;
1361 /* update video clock with pts, if present */
1362 is->video_clock = pts;
1364 pts = is->video_clock;
1366 /* update video clock for next frame */
1367 frame_delay = av_q2d(is->video_st->codec->time_base);
1368 /* for MPEG2, the frame can be repeated, so we update the
1369 clock accordingly */
1370 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1371 is->video_clock += frame_delay;
1373 #if defined(DEBUG_SYNC) && 0
1376 if (src_frame->pict_type == FF_B_TYPE)
1378 else if (src_frame->pict_type == FF_I_TYPE)
1382 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1386 return queue_picture(is, src_frame, pts, pos);
1389 static int video_thread(void *arg)
1391 VideoState *is = arg;
1392 AVPacket pkt1, *pkt = &pkt1;
1393 int len1, got_picture, i;
1394 AVFrame *frame= avcodec_alloc_frame();
1398 while (is->paused && !is->videoq.abort_request) {
1401 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1404 if(pkt->data == flush_pkt.data){
1405 avcodec_flush_buffers(is->video_st->codec);
1407 SDL_LockMutex(is->pictq_mutex);
1408 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1409 for(i=0; i<VIDEO_PICTURE_QUEUE_SIZE; i++){
1410 if(is->pictq[i].timer_id){
1411 SDL_RemoveTimer(is->pictq[i].timer_id);
1412 is->pictq[i].timer_id=0;
1413 schedule_refresh(is, 1);
1416 while (is->pictq_size && !is->videoq.abort_request) {
1417 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1419 is->video_current_pos= -1;
1420 SDL_UnlockMutex(is->pictq_mutex);
1422 is->last_dts_for_fault_detection=
1423 is->last_pts_for_fault_detection= INT64_MIN;
1424 is->frame_last_pts= AV_NOPTS_VALUE;
1425 is->frame_last_delay = 0;
1426 is->frame_timer = (double)av_gettime() / 1000000.0;
1431 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1432 this packet, if any */
1433 is->video_st->codec->reordered_opaque= pkt->pts;
1434 len1 = avcodec_decode_video2(is->video_st->codec,
1435 frame, &got_picture,
1439 if(pkt->dts != AV_NOPTS_VALUE){
1440 is->faulty_dts += pkt->dts <= is->last_dts_for_fault_detection;
1441 is->last_dts_for_fault_detection= pkt->dts;
1443 if(frame->reordered_opaque != AV_NOPTS_VALUE){
1444 is->faulty_pts += frame->reordered_opaque <= is->last_pts_for_fault_detection;
1445 is->last_pts_for_fault_detection= frame->reordered_opaque;
1449 if( ( decoder_reorder_pts==1
1450 || (decoder_reorder_pts && is->faulty_pts<is->faulty_dts)
1451 || pkt->dts == AV_NOPTS_VALUE)
1452 && frame->reordered_opaque != AV_NOPTS_VALUE)
1453 pts= frame->reordered_opaque;
1454 else if(pkt->dts != AV_NOPTS_VALUE)
1458 pts *= av_q2d(is->video_st->time_base);
1463 if (output_picture2(is, frame, pts, pkt->pos) < 0)
1466 av_free_packet(pkt);
1469 stream_pause(cur_stream);
1476 static int subtitle_thread(void *arg)
1478 VideoState *is = arg;
1480 AVPacket pkt1, *pkt = &pkt1;
1481 int len1, got_subtitle;
1484 int r, g, b, y, u, v, a;
1487 while (is->paused && !is->subtitleq.abort_request) {
1490 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1493 if(pkt->data == flush_pkt.data){
1494 avcodec_flush_buffers(is->subtitle_st->codec);
1497 SDL_LockMutex(is->subpq_mutex);
1498 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1499 !is->subtitleq.abort_request) {
1500 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1502 SDL_UnlockMutex(is->subpq_mutex);
1504 if (is->subtitleq.abort_request)
1507 sp = &is->subpq[is->subpq_windex];
1509 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1510 this packet, if any */
1512 if (pkt->pts != AV_NOPTS_VALUE)
1513 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1515 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1516 &sp->sub, &got_subtitle,
1520 if (got_subtitle && sp->sub.format == 0) {
1523 for (i = 0; i < sp->sub.num_rects; i++)
1525 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1527 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1528 y = RGB_TO_Y_CCIR(r, g, b);
1529 u = RGB_TO_U_CCIR(r, g, b, 0);
1530 v = RGB_TO_V_CCIR(r, g, b, 0);
1531 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1535 /* now we can update the picture count */
1536 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1537 is->subpq_windex = 0;
1538 SDL_LockMutex(is->subpq_mutex);
1540 SDL_UnlockMutex(is->subpq_mutex);
1542 av_free_packet(pkt);
1545 // stream_pause(cur_stream);
1551 /* copy samples for viewing in editor window */
1552 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1554 int size, len, channels;
1556 channels = is->audio_st->codec->channels;
1558 size = samples_size / sizeof(short);
1560 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1563 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1565 is->sample_array_index += len;
1566 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1567 is->sample_array_index = 0;
1572 /* return the new audio buffer size (samples can be added or deleted
1573 to get better sync if video or external master clock) */
1574 static int synchronize_audio(VideoState *is, short *samples,
1575 int samples_size1, double pts)
1577 int n, samples_size;
1580 n = 2 * is->audio_st->codec->channels;
1581 samples_size = samples_size1;
1583 /* if not master, then we try to remove or add samples to correct the clock */
1584 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1585 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1586 double diff, avg_diff;
1587 int wanted_size, min_size, max_size, nb_samples;
1589 ref_clock = get_master_clock(is);
1590 diff = get_audio_clock(is) - ref_clock;
1592 if (diff < AV_NOSYNC_THRESHOLD) {
1593 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1594 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1595 /* not enough measures to have a correct estimate */
1596 is->audio_diff_avg_count++;
1598 /* estimate the A-V difference */
1599 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1601 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1602 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1603 nb_samples = samples_size / n;
1605 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1606 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1607 if (wanted_size < min_size)
1608 wanted_size = min_size;
1609 else if (wanted_size > max_size)
1610 wanted_size = max_size;
1612 /* add or remove samples to correction the synchro */
1613 if (wanted_size < samples_size) {
1614 /* remove samples */
1615 samples_size = wanted_size;
1616 } else if (wanted_size > samples_size) {
1617 uint8_t *samples_end, *q;
1621 nb = (samples_size - wanted_size);
1622 samples_end = (uint8_t *)samples + samples_size - n;
1623 q = samples_end + n;
1625 memcpy(q, samples_end, n);
1629 samples_size = wanted_size;
1633 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1634 diff, avg_diff, samples_size - samples_size1,
1635 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1639 /* too big difference : may be initial PTS errors, so
1641 is->audio_diff_avg_count = 0;
1642 is->audio_diff_cum = 0;
1646 return samples_size;
1649 /* decode one audio frame and returns its uncompressed size */
1650 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1652 AVPacket *pkt_temp = &is->audio_pkt_temp;
1653 AVPacket *pkt = &is->audio_pkt;
1654 AVCodecContext *dec= is->audio_st->codec;
1655 int n, len1, data_size;
1659 /* NOTE: the audio packet can contain several frames */
1660 while (pkt_temp->size > 0) {
1661 data_size = sizeof(is->audio_buf1);
1662 len1 = avcodec_decode_audio3(dec,
1663 (int16_t *)is->audio_buf1, &data_size,
1666 /* if error, we skip the frame */
1671 pkt_temp->data += len1;
1672 pkt_temp->size -= len1;
1676 if (dec->sample_fmt != is->audio_src_fmt) {
1677 if (is->reformat_ctx)
1678 av_audio_convert_free(is->reformat_ctx);
1679 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
1680 dec->sample_fmt, 1, NULL, 0);
1681 if (!is->reformat_ctx) {
1682 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
1683 avcodec_get_sample_fmt_name(dec->sample_fmt),
1684 avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
1687 is->audio_src_fmt= dec->sample_fmt;
1690 if (is->reformat_ctx) {
1691 const void *ibuf[6]= {is->audio_buf1};
1692 void *obuf[6]= {is->audio_buf2};
1693 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
1694 int ostride[6]= {2};
1695 int len= data_size/istride[0];
1696 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
1697 printf("av_audio_convert() failed\n");
1700 is->audio_buf= is->audio_buf2;
1701 /* FIXME: existing code assume that data_size equals framesize*channels*2
1702 remove this legacy cruft */
1705 is->audio_buf= is->audio_buf1;
1708 /* if no pts, then compute it */
1709 pts = is->audio_clock;
1711 n = 2 * dec->channels;
1712 is->audio_clock += (double)data_size /
1713 (double)(n * dec->sample_rate);
1714 #if defined(DEBUG_SYNC)
1716 static double last_clock;
1717 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1718 is->audio_clock - last_clock,
1719 is->audio_clock, pts);
1720 last_clock = is->audio_clock;
1726 /* free the current packet */
1728 av_free_packet(pkt);
1730 if (is->paused || is->audioq.abort_request) {
1734 /* read next packet */
1735 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1737 if(pkt->data == flush_pkt.data){
1738 avcodec_flush_buffers(dec);
1742 pkt_temp->data = pkt->data;
1743 pkt_temp->size = pkt->size;
1745 /* if update the audio clock with the pts */
1746 if (pkt->pts != AV_NOPTS_VALUE) {
1747 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1752 /* get the current audio output buffer size, in samples. With SDL, we
1753 cannot have a precise information */
1754 static int audio_write_get_buf_size(VideoState *is)
1756 return is->audio_buf_size - is->audio_buf_index;
1760 /* prepare a new audio buffer */
1761 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1763 VideoState *is = opaque;
1764 int audio_size, len1;
1767 audio_callback_time = av_gettime();
1770 if (is->audio_buf_index >= is->audio_buf_size) {
1771 audio_size = audio_decode_frame(is, &pts);
1772 if (audio_size < 0) {
1773 /* if error, just output silence */
1774 is->audio_buf = is->audio_buf1;
1775 is->audio_buf_size = 1024;
1776 memset(is->audio_buf, 0, is->audio_buf_size);
1779 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1780 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1782 is->audio_buf_size = audio_size;
1784 is->audio_buf_index = 0;
1786 len1 = is->audio_buf_size - is->audio_buf_index;
1789 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1792 is->audio_buf_index += len1;
1796 /* open a given stream. Return 0 if OK */
1797 static int stream_component_open(VideoState *is, int stream_index)
1799 AVFormatContext *ic = is->ic;
1800 AVCodecContext *avctx;
1802 SDL_AudioSpec wanted_spec, spec;
1804 if (stream_index < 0 || stream_index >= ic->nb_streams)
1806 avctx = ic->streams[stream_index]->codec;
1808 /* prepare audio output */
1809 if (avctx->codec_type == CODEC_TYPE_AUDIO) {
1810 if (avctx->channels > 0) {
1811 avctx->request_channels = FFMIN(2, avctx->channels);
1813 avctx->request_channels = 2;
1817 codec = avcodec_find_decoder(avctx->codec_id);
1818 avctx->debug_mv = debug_mv;
1819 avctx->debug = debug;
1820 avctx->workaround_bugs = workaround_bugs;
1821 avctx->lowres = lowres;
1822 if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
1823 avctx->idct_algo= idct;
1824 if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
1825 avctx->skip_frame= skip_frame;
1826 avctx->skip_idct= skip_idct;
1827 avctx->skip_loop_filter= skip_loop_filter;
1828 avctx->error_recognition= error_recognition;
1829 avctx->error_concealment= error_concealment;
1830 avcodec_thread_init(avctx, thread_count);
1832 set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0);
1835 avcodec_open(avctx, codec) < 0)
1838 /* prepare audio output */
1839 if (avctx->codec_type == CODEC_TYPE_AUDIO) {
1840 wanted_spec.freq = avctx->sample_rate;
1841 wanted_spec.format = AUDIO_S16SYS;
1842 wanted_spec.channels = avctx->channels;
1843 wanted_spec.silence = 0;
1844 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1845 wanted_spec.callback = sdl_audio_callback;
1846 wanted_spec.userdata = is;
1847 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1848 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1851 is->audio_hw_buf_size = spec.size;
1852 is->audio_src_fmt= SAMPLE_FMT_S16;
1855 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
1856 switch(avctx->codec_type) {
1857 case CODEC_TYPE_AUDIO:
1858 is->audio_stream = stream_index;
1859 is->audio_st = ic->streams[stream_index];
1860 is->audio_buf_size = 0;
1861 is->audio_buf_index = 0;
1863 /* init averaging filter */
1864 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1865 is->audio_diff_avg_count = 0;
1866 /* since we do not have a precise anough audio fifo fullness,
1867 we correct audio sync only if larger than this threshold */
1868 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
1870 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1871 packet_queue_init(&is->audioq);
1874 case CODEC_TYPE_VIDEO:
1875 is->video_stream = stream_index;
1876 is->video_st = ic->streams[stream_index];
1878 // is->video_current_pts_time = av_gettime();
1880 packet_queue_init(&is->videoq);
1881 is->video_tid = SDL_CreateThread(video_thread, is);
1883 case CODEC_TYPE_SUBTITLE:
1884 is->subtitle_stream = stream_index;
1885 is->subtitle_st = ic->streams[stream_index];
1886 packet_queue_init(&is->subtitleq);
1888 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
1896 static void stream_component_close(VideoState *is, int stream_index)
1898 AVFormatContext *ic = is->ic;
1899 AVCodecContext *avctx;
1901 if (stream_index < 0 || stream_index >= ic->nb_streams)
1903 avctx = ic->streams[stream_index]->codec;
1905 switch(avctx->codec_type) {
1906 case CODEC_TYPE_AUDIO:
1907 packet_queue_abort(&is->audioq);
1911 packet_queue_end(&is->audioq);
1912 if (is->reformat_ctx)
1913 av_audio_convert_free(is->reformat_ctx);
1915 case CODEC_TYPE_VIDEO:
1916 packet_queue_abort(&is->videoq);
1918 /* note: we also signal this mutex to make sure we deblock the
1919 video thread in all cases */
1920 SDL_LockMutex(is->pictq_mutex);
1921 SDL_CondSignal(is->pictq_cond);
1922 SDL_UnlockMutex(is->pictq_mutex);
1924 SDL_WaitThread(is->video_tid, NULL);
1926 packet_queue_end(&is->videoq);
1928 case CODEC_TYPE_SUBTITLE:
1929 packet_queue_abort(&is->subtitleq);
1931 /* note: we also signal this mutex to make sure we deblock the
1932 video thread in all cases */
1933 SDL_LockMutex(is->subpq_mutex);
1934 is->subtitle_stream_changed = 1;
1936 SDL_CondSignal(is->subpq_cond);
1937 SDL_UnlockMutex(is->subpq_mutex);
1939 SDL_WaitThread(is->subtitle_tid, NULL);
1941 packet_queue_end(&is->subtitleq);
1947 ic->streams[stream_index]->discard = AVDISCARD_ALL;
1948 avcodec_close(avctx);
1949 switch(avctx->codec_type) {
1950 case CODEC_TYPE_AUDIO:
1951 is->audio_st = NULL;
1952 is->audio_stream = -1;
1954 case CODEC_TYPE_VIDEO:
1955 is->video_st = NULL;
1956 is->video_stream = -1;
1958 case CODEC_TYPE_SUBTITLE:
1959 is->subtitle_st = NULL;
1960 is->subtitle_stream = -1;
1967 /* since we have only one decoding thread, we can use a global
1968 variable instead of a thread local variable */
1969 static VideoState *global_video_state;
1971 static int decode_interrupt_cb(void)
1973 return (global_video_state && global_video_state->abort_request);
1976 /* this thread gets the stream from the disk or the network */
1977 static int decode_thread(void *arg)
1979 VideoState *is = arg;
1980 AVFormatContext *ic;
1982 int st_index[CODEC_TYPE_NB];
1983 int st_count[CODEC_TYPE_NB]={0};
1984 AVPacket pkt1, *pkt = &pkt1;
1985 AVFormatParameters params, *ap = ¶ms;
1988 ic = avformat_alloc_context();
1990 memset(st_index, -1, sizeof(st_index));
1991 is->video_stream = -1;
1992 is->audio_stream = -1;
1993 is->subtitle_stream = -1;
1995 global_video_state = is;
1996 url_set_interrupt_cb(decode_interrupt_cb);
1998 memset(ap, 0, sizeof(*ap));
2000 ap->prealloced_context = 1;
2001 ap->width = frame_width;
2002 ap->height= frame_height;
2003 ap->time_base= (AVRational){1, 25};
2004 ap->pix_fmt = frame_pix_fmt;
2006 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2008 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2010 print_error(is->filename, err);
2017 ic->flags |= AVFMT_FLAG_GENPTS;
2019 err = av_find_stream_info(ic);
2021 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2026 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2029 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2031 /* if seeking requested, we execute it */
2032 if (start_time != AV_NOPTS_VALUE) {
2035 timestamp = start_time;
2036 /* add the stream start time */
2037 if (ic->start_time != AV_NOPTS_VALUE)
2038 timestamp += ic->start_time;
2039 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2041 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2042 is->filename, (double)timestamp / AV_TIME_BASE);
2046 for(i = 0; i < ic->nb_streams; i++) {
2047 AVCodecContext *avctx = ic->streams[i]->codec;
2048 ic->streams[i]->discard = AVDISCARD_ALL;
2049 if(avctx->codec_type >= (unsigned)CODEC_TYPE_NB)
2051 if(st_count[avctx->codec_type]++ != wanted_stream[avctx->codec_type] && wanted_stream[avctx->codec_type] >= 0)
2054 switch(avctx->codec_type) {
2055 case CODEC_TYPE_AUDIO:
2057 st_index[CODEC_TYPE_AUDIO] = i;
2059 case CODEC_TYPE_VIDEO:
2060 case CODEC_TYPE_SUBTITLE:
2062 st_index[avctx->codec_type] = i;
2069 dump_format(ic, 0, is->filename, 0);
2072 /* open the streams */
2073 if (st_index[CODEC_TYPE_AUDIO] >= 0) {
2074 stream_component_open(is, st_index[CODEC_TYPE_AUDIO]);
2078 if (st_index[CODEC_TYPE_VIDEO] >= 0) {
2079 ret= stream_component_open(is, st_index[CODEC_TYPE_VIDEO]);
2082 /* add the refresh timer to draw the picture */
2083 schedule_refresh(is, 40);
2085 if (!display_disable)
2089 if (st_index[CODEC_TYPE_SUBTITLE] >= 0) {
2090 stream_component_open(is, st_index[CODEC_TYPE_SUBTITLE]);
2093 if (is->video_stream < 0 && is->audio_stream < 0) {
2094 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2100 if (is->abort_request)
2102 if (is->paused != is->last_paused) {
2103 is->last_paused = is->paused;
2105 is->read_pause_return= av_read_pause(ic);
2109 #if CONFIG_RTSP_DEMUXER
2110 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2111 /* wait 10 ms to avoid trying to get another packet */
2118 int64_t seek_target= is->seek_pos;
2119 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2120 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2121 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2122 // of the seek_pos/seek_rel variables
2124 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2126 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2128 if (is->audio_stream >= 0) {
2129 packet_queue_flush(&is->audioq);
2130 packet_queue_put(&is->audioq, &flush_pkt);
2132 if (is->subtitle_stream >= 0) {
2133 packet_queue_flush(&is->subtitleq);
2134 packet_queue_put(&is->subtitleq, &flush_pkt);
2136 if (is->video_stream >= 0) {
2137 packet_queue_flush(&is->videoq);
2138 packet_queue_put(&is->videoq, &flush_pkt);
2145 /* if the queue are full, no need to read more */
2146 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2147 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2148 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2149 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2154 if(url_feof(ic->pb) || eof) {
2155 if(is->video_stream >= 0){
2156 av_init_packet(pkt);
2159 pkt->stream_index= is->video_stream;
2160 packet_queue_put(&is->videoq, pkt);
2163 if(autoexit && is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2169 ret = av_read_frame(ic, pkt);
2171 if (ret == AVERROR_EOF)
2173 if (url_ferror(ic->pb))
2175 SDL_Delay(100); /* wait for user event */
2178 if (pkt->stream_index == is->audio_stream) {
2179 packet_queue_put(&is->audioq, pkt);
2180 } else if (pkt->stream_index == is->video_stream) {
2181 packet_queue_put(&is->videoq, pkt);
2182 } else if (pkt->stream_index == is->subtitle_stream) {
2183 packet_queue_put(&is->subtitleq, pkt);
2185 av_free_packet(pkt);
2188 /* wait until the end */
2189 while (!is->abort_request) {
2195 /* disable interrupting */
2196 global_video_state = NULL;
2198 /* close each stream */
2199 if (is->audio_stream >= 0)
2200 stream_component_close(is, is->audio_stream);
2201 if (is->video_stream >= 0)
2202 stream_component_close(is, is->video_stream);
2203 if (is->subtitle_stream >= 0)
2204 stream_component_close(is, is->subtitle_stream);
2206 av_close_input_file(is->ic);
2207 is->ic = NULL; /* safety */
2209 url_set_interrupt_cb(NULL);
2214 event.type = FF_QUIT_EVENT;
2215 event.user.data1 = is;
2216 SDL_PushEvent(&event);
2221 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2225 is = av_mallocz(sizeof(VideoState));
2228 av_strlcpy(is->filename, filename, sizeof(is->filename));
2229 is->iformat = iformat;
2233 /* start video display */
2234 is->pictq_mutex = SDL_CreateMutex();
2235 is->pictq_cond = SDL_CreateCond();
2237 is->subpq_mutex = SDL_CreateMutex();
2238 is->subpq_cond = SDL_CreateCond();
2240 is->av_sync_type = av_sync_type;
2241 is->parse_tid = SDL_CreateThread(decode_thread, is);
2242 if (!is->parse_tid) {
2249 static void stream_close(VideoState *is)
2253 /* XXX: use a special url_shutdown call to abort parse cleanly */
2254 is->abort_request = 1;
2255 SDL_WaitThread(is->parse_tid, NULL);
2257 /* free all pictures */
2258 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2261 SDL_FreeYUVOverlay(vp->bmp);
2265 SDL_DestroyMutex(is->pictq_mutex);
2266 SDL_DestroyCond(is->pictq_cond);
2267 SDL_DestroyMutex(is->subpq_mutex);
2268 SDL_DestroyCond(is->subpq_cond);
2269 if (is->img_convert_ctx)
2270 sws_freeContext(is->img_convert_ctx);
2274 static void stream_cycle_channel(VideoState *is, int codec_type)
2276 AVFormatContext *ic = is->ic;
2277 int start_index, stream_index;
2280 if (codec_type == CODEC_TYPE_VIDEO)
2281 start_index = is->video_stream;
2282 else if (codec_type == CODEC_TYPE_AUDIO)
2283 start_index = is->audio_stream;
2285 start_index = is->subtitle_stream;
2286 if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0))
2288 stream_index = start_index;
2290 if (++stream_index >= is->ic->nb_streams)
2292 if (codec_type == CODEC_TYPE_SUBTITLE)
2299 if (stream_index == start_index)
2301 st = ic->streams[stream_index];
2302 if (st->codec->codec_type == codec_type) {
2303 /* check that parameters are OK */
2304 switch(codec_type) {
2305 case CODEC_TYPE_AUDIO:
2306 if (st->codec->sample_rate != 0 &&
2307 st->codec->channels != 0)
2310 case CODEC_TYPE_VIDEO:
2311 case CODEC_TYPE_SUBTITLE:
2319 stream_component_close(is, start_index);
2320 stream_component_open(is, stream_index);
2324 static void toggle_full_screen(void)
2326 is_full_screen = !is_full_screen;
2327 if (!fs_screen_width) {
2328 /* use default SDL method */
2329 // SDL_WM_ToggleFullScreen(screen);
2331 video_open(cur_stream);
2334 static void toggle_pause(void)
2337 stream_pause(cur_stream);
2341 static void step_to_next_frame(void)
2344 /* if the stream is paused unpause it, then step */
2345 if (cur_stream->paused)
2346 stream_pause(cur_stream);
2351 static void do_exit(void)
2355 stream_close(cur_stream);
2358 for (i = 0; i < CODEC_TYPE_NB; i++)
2359 av_free(avcodec_opts[i]);
2360 av_free(avformat_opts);
2368 static void toggle_audio_display(void)
2371 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2372 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2373 fill_rectangle(screen,
2374 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2376 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2380 /* handle an event sent by the GUI */
2381 static void event_loop(void)
2384 double incr, pos, frac;
2388 SDL_WaitEvent(&event);
2389 switch(event.type) {
2391 switch(event.key.keysym.sym) {
2397 toggle_full_screen();
2403 case SDLK_s: //S: Step to next frame
2404 step_to_next_frame();
2408 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
2412 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
2416 stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE);
2419 toggle_audio_display();
2434 if (seek_by_bytes) {
2435 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2436 pos= cur_stream->video_current_pos;
2437 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2438 pos= cur_stream->audio_pkt.pos;
2440 pos = url_ftell(cur_stream->ic->pb);
2441 if (cur_stream->ic->bit_rate)
2442 incr *= cur_stream->ic->bit_rate / 8.0;
2446 stream_seek(cur_stream, pos, incr, 1);
2448 pos = get_master_clock(cur_stream);
2450 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2458 case SDL_MOUSEBUTTONDOWN:
2459 case SDL_MOUSEMOTION:
2460 if(event.type ==SDL_MOUSEBUTTONDOWN){
2463 if(event.motion.state != SDL_PRESSED)
2468 if(seek_by_bytes || cur_stream->ic->duration<=0){
2469 uint64_t size= url_fsize(cur_stream->ic->pb);
2470 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2474 int tns, thh, tmm, tss;
2475 tns = cur_stream->ic->duration/1000000LL;
2477 tmm = (tns%3600)/60;
2479 frac = x/cur_stream->width;
2484 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2485 hh, mm, ss, thh, tmm, tss);
2486 ts = frac*cur_stream->ic->duration;
2487 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2488 ts += cur_stream->ic->start_time;
2489 stream_seek(cur_stream, ts, 0, 0);
2493 case SDL_VIDEORESIZE:
2495 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2496 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2497 screen_width = cur_stream->width = event.resize.w;
2498 screen_height= cur_stream->height= event.resize.h;
2505 case FF_ALLOC_EVENT:
2506 video_open(event.user.data1);
2507 alloc_picture(event.user.data1);
2509 case FF_REFRESH_EVENT:
2510 video_refresh_timer(event.user.data1);
2518 static void opt_frame_size(const char *arg)
2520 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2521 fprintf(stderr, "Incorrect frame size\n");
2524 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2525 fprintf(stderr, "Frame size must be a multiple of 2\n");
2530 static int opt_width(const char *opt, const char *arg)
2532 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2536 static int opt_height(const char *opt, const char *arg)
2538 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2542 static void opt_format(const char *arg)
2544 file_iformat = av_find_input_format(arg);
2545 if (!file_iformat) {
2546 fprintf(stderr, "Unknown input format: %s\n", arg);
2551 static void opt_frame_pix_fmt(const char *arg)
2553 frame_pix_fmt = av_get_pix_fmt(arg);
2556 static int opt_sync(const char *opt, const char *arg)
2558 if (!strcmp(arg, "audio"))
2559 av_sync_type = AV_SYNC_AUDIO_MASTER;
2560 else if (!strcmp(arg, "video"))
2561 av_sync_type = AV_SYNC_VIDEO_MASTER;
2562 else if (!strcmp(arg, "ext"))
2563 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2565 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2571 static int opt_seek(const char *opt, const char *arg)
2573 start_time = parse_time_or_die(opt, arg, 1);
2577 static int opt_debug(const char *opt, const char *arg)
2579 av_log_set_level(99);
2580 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2584 static int opt_vismv(const char *opt, const char *arg)
2586 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2590 static int opt_thread_count(const char *opt, const char *arg)
2592 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2594 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2599 static const OptionDef options[] = {
2600 #include "cmdutils_common_opts.h"
2601 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
2602 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
2603 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2604 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2605 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2606 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2607 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[CODEC_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
2608 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[CODEC_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
2609 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[CODEC_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
2610 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2611 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
2612 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2613 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2614 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2615 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2616 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2617 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2618 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2619 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2620 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2621 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2622 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2623 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2624 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2625 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2626 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2627 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
2628 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2629 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2630 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2631 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
2632 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
2636 static void show_usage(void)
2638 printf("Simple media player\n");
2639 printf("usage: ffplay [options] input_file\n");
2643 static void show_help(void)
2646 show_help_options(options, "Main options:\n",
2648 show_help_options(options, "\nAdvanced options:\n",
2649 OPT_EXPERT, OPT_EXPERT);
2650 printf("\nWhile playing:\n"
2652 "f toggle full screen\n"
2654 "a cycle audio channel\n"
2655 "v cycle video channel\n"
2656 "t cycle subtitle channel\n"
2657 "w show audio waves\n"
2658 "left/right seek backward/forward 10 seconds\n"
2659 "down/up seek backward/forward 1 minute\n"
2660 "mouse click seek to percentage in file corresponding to fraction of width\n"
2664 static void opt_input_file(const char *filename)
2666 if (!strcmp(filename, "-"))
2668 input_filename = filename;
2671 /* Called from the main */
2672 int main(int argc, char **argv)
2676 /* register all codecs, demux and protocols */
2677 avcodec_register_all();
2678 avdevice_register_all();
2681 for(i=0; i<CODEC_TYPE_NB; i++){
2682 avcodec_opts[i]= avcodec_alloc_context2(i);
2684 avformat_opts = avformat_alloc_context();
2685 sws_opts = sws_getContext(16,16,0, 16,16,0, sws_flags, NULL,NULL,NULL);
2689 parse_options(argc, argv, options, opt_input_file);
2691 if (!input_filename) {
2693 fprintf(stderr, "An input file must be specified\n");
2694 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
2698 if (display_disable) {
2701 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
2702 #if !defined(__MINGW32__) && !defined(__APPLE__)
2703 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
2705 if (SDL_Init (flags)) {
2706 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
2710 if (!display_disable) {
2711 #if HAVE_SDL_VIDEO_SIZE
2712 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2713 fs_screen_width = vi->current_w;
2714 fs_screen_height = vi->current_h;
2718 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
2719 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
2720 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
2722 av_init_packet(&flush_pkt);
2723 flush_pkt.data= "FLUSH";
2725 cur_stream = stream_open(input_filename, file_iformat);