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_audio_stream= 0;
212 static int wanted_video_stream= 0;
213 static int wanted_subtitle_stream= -1;
214 static int seek_by_bytes=-1;
215 static int display_disable;
216 static int show_status = 1;
217 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
218 static int64_t start_time = AV_NOPTS_VALUE;
219 static int debug = 0;
220 static int debug_mv = 0;
222 static int thread_count = 1;
223 static int workaround_bugs = 1;
225 static int genpts = 0;
226 static int lowres = 0;
227 static int idct = FF_IDCT_AUTO;
228 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
229 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
230 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
231 static int error_recognition = FF_ER_CAREFUL;
232 static int error_concealment = 3;
233 static int decoder_reorder_pts= -1;
236 /* current context */
237 static int is_full_screen;
238 static VideoState *cur_stream;
239 static int64_t audio_callback_time;
241 static AVPacket flush_pkt;
243 #define FF_ALLOC_EVENT (SDL_USEREVENT)
244 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
245 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
247 static SDL_Surface *screen;
249 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
251 /* packet queue handling */
252 static void packet_queue_init(PacketQueue *q)
254 memset(q, 0, sizeof(PacketQueue));
255 q->mutex = SDL_CreateMutex();
256 q->cond = SDL_CreateCond();
257 packet_queue_put(q, &flush_pkt);
260 static void packet_queue_flush(PacketQueue *q)
262 AVPacketList *pkt, *pkt1;
264 SDL_LockMutex(q->mutex);
265 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
267 av_free_packet(&pkt->pkt);
274 SDL_UnlockMutex(q->mutex);
277 static void packet_queue_end(PacketQueue *q)
279 packet_queue_flush(q);
280 SDL_DestroyMutex(q->mutex);
281 SDL_DestroyCond(q->cond);
284 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
288 /* duplicate the packet */
289 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
292 pkt1 = av_malloc(sizeof(AVPacketList));
299 SDL_LockMutex(q->mutex);
305 q->last_pkt->next = pkt1;
308 q->size += pkt1->pkt.size + sizeof(*pkt1);
309 /* XXX: should duplicate packet data in DV case */
310 SDL_CondSignal(q->cond);
312 SDL_UnlockMutex(q->mutex);
316 static void packet_queue_abort(PacketQueue *q)
318 SDL_LockMutex(q->mutex);
320 q->abort_request = 1;
322 SDL_CondSignal(q->cond);
324 SDL_UnlockMutex(q->mutex);
327 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
328 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
333 SDL_LockMutex(q->mutex);
336 if (q->abort_request) {
343 q->first_pkt = pkt1->next;
347 q->size -= pkt1->pkt.size + sizeof(*pkt1);
356 SDL_CondWait(q->cond, q->mutex);
359 SDL_UnlockMutex(q->mutex);
363 static inline void fill_rectangle(SDL_Surface *screen,
364 int x, int y, int w, int h, int color)
371 SDL_FillRect(screen, &rect, color);
375 /* draw only the border of a rectangle */
376 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
380 /* fill the background */
384 w2 = s->width - (x + w);
390 h2 = s->height - (y + h);
393 fill_rectangle(screen,
397 fill_rectangle(screen,
398 s->xleft + s->width - w2, s->ytop,
401 fill_rectangle(screen,
402 s->xleft + w1, s->ytop,
403 s->width - w1 - w2, h1,
405 fill_rectangle(screen,
406 s->xleft + w1, s->ytop + s->height - h2,
407 s->width - w1 - w2, h2,
412 #define ALPHA_BLEND(a, oldp, newp, s)\
413 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
415 #define RGBA_IN(r, g, b, a, s)\
417 unsigned int v = ((const uint32_t *)(s))[0];\
418 a = (v >> 24) & 0xff;\
419 r = (v >> 16) & 0xff;\
420 g = (v >> 8) & 0xff;\
424 #define YUVA_IN(y, u, v, a, s, pal)\
426 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
427 a = (val >> 24) & 0xff;\
428 y = (val >> 16) & 0xff;\
429 u = (val >> 8) & 0xff;\
433 #define YUVA_OUT(d, y, u, v, a)\
435 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
441 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
443 int wrap, wrap3, width2, skip2;
444 int y, u, v, a, u1, v1, a1, w, h;
445 uint8_t *lum, *cb, *cr;
448 int dstx, dsty, dstw, dsth;
450 dstw = av_clip(rect->w, 0, imgw);
451 dsth = av_clip(rect->h, 0, imgh);
452 dstx = av_clip(rect->x, 0, imgw - dstw);
453 dsty = av_clip(rect->y, 0, imgh - dsth);
454 lum = dst->data[0] + dsty * dst->linesize[0];
455 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
456 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
458 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
460 wrap = dst->linesize[0];
461 wrap3 = rect->pict.linesize[0];
462 p = rect->pict.data[0];
463 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
471 YUVA_IN(y, u, v, a, p, pal);
472 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
473 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
474 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
480 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
481 YUVA_IN(y, u, v, a, p, pal);
485 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
487 YUVA_IN(y, u, v, a, p + BPP, pal);
491 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
492 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
493 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
500 YUVA_IN(y, u, v, a, p, pal);
501 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
502 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
503 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
507 p += wrap3 - dstw * BPP;
508 lum += wrap - dstw - dstx;
509 cb += dst->linesize[1] - width2 - skip2;
510 cr += dst->linesize[2] - width2 - skip2;
512 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
518 YUVA_IN(y, u, v, a, p, pal);
522 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
525 YUVA_IN(y, u, v, a, p, pal);
529 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
530 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
531 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
537 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
538 YUVA_IN(y, u, v, a, p, pal);
542 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
544 YUVA_IN(y, u, v, a, p + BPP, pal);
548 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
552 YUVA_IN(y, u, v, a, p, pal);
556 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
558 YUVA_IN(y, u, v, a, p + BPP, pal);
562 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
564 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
565 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
569 p += -wrap3 + 2 * BPP;
573 YUVA_IN(y, u, v, a, p, pal);
577 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
580 YUVA_IN(y, u, v, a, p, pal);
584 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
585 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
586 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
592 p += wrap3 + (wrap3 - dstw * BPP);
593 lum += wrap + (wrap - dstw - dstx);
594 cb += dst->linesize[1] - width2 - skip2;
595 cr += dst->linesize[2] - width2 - skip2;
597 /* handle odd height */
604 YUVA_IN(y, u, v, a, p, pal);
605 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
606 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
607 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
613 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
614 YUVA_IN(y, u, v, a, p, pal);
618 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
620 YUVA_IN(y, u, v, a, p + BPP, pal);
624 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
625 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
626 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
633 YUVA_IN(y, u, v, a, p, pal);
634 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
635 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
636 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
641 static void free_subpicture(SubPicture *sp)
645 for (i = 0; i < sp->sub.num_rects; i++)
647 av_freep(&sp->sub.rects[i]->pict.data[0]);
648 av_freep(&sp->sub.rects[i]->pict.data[1]);
649 av_freep(&sp->sub.rects[i]);
652 av_free(sp->sub.rects);
654 memset(&sp->sub, 0, sizeof(AVSubtitle));
657 static void video_image_display(VideoState *is)
663 int width, height, x, y;
667 vp = &is->pictq[is->pictq_rindex];
669 /* XXX: use variable in the frame */
670 if (is->video_st->sample_aspect_ratio.num)
671 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
672 else if (is->video_st->codec->sample_aspect_ratio.num)
673 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
676 if (aspect_ratio <= 0.0)
678 aspect_ratio *= (float)is->video_st->codec->width / is->video_st->codec->height;
679 /* if an active format is indicated, then it overrides the
682 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
683 is->dtg_active_format = is->video_st->codec->dtg_active_format;
684 printf("dtg_active_format=%d\n", is->dtg_active_format);
688 switch(is->video_st->codec->dtg_active_format) {
689 case FF_DTG_AFD_SAME:
694 aspect_ratio = 4.0 / 3.0;
696 case FF_DTG_AFD_16_9:
697 aspect_ratio = 16.0 / 9.0;
699 case FF_DTG_AFD_14_9:
700 aspect_ratio = 14.0 / 9.0;
702 case FF_DTG_AFD_4_3_SP_14_9:
703 aspect_ratio = 14.0 / 9.0;
705 case FF_DTG_AFD_16_9_SP_14_9:
706 aspect_ratio = 14.0 / 9.0;
708 case FF_DTG_AFD_SP_4_3:
709 aspect_ratio = 4.0 / 3.0;
716 if (is->subpq_size > 0)
718 sp = &is->subpq[is->subpq_rindex];
720 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
722 SDL_LockYUVOverlay (vp->bmp);
724 pict.data[0] = vp->bmp->pixels[0];
725 pict.data[1] = vp->bmp->pixels[2];
726 pict.data[2] = vp->bmp->pixels[1];
728 pict.linesize[0] = vp->bmp->pitches[0];
729 pict.linesize[1] = vp->bmp->pitches[2];
730 pict.linesize[2] = vp->bmp->pitches[1];
732 for (i = 0; i < sp->sub.num_rects; i++)
733 blend_subrect(&pict, sp->sub.rects[i],
734 vp->bmp->w, vp->bmp->h);
736 SDL_UnlockYUVOverlay (vp->bmp);
742 /* XXX: we suppose the screen has a 1.0 pixel ratio */
744 width = ((int)rint(height * aspect_ratio)) & ~1;
745 if (width > is->width) {
747 height = ((int)rint(width / aspect_ratio)) & ~1;
749 x = (is->width - width) / 2;
750 y = (is->height - height) / 2;
751 if (!is->no_background) {
752 /* fill the background */
753 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
755 is->no_background = 0;
757 rect.x = is->xleft + x;
758 rect.y = is->ytop + y;
761 SDL_DisplayYUVOverlay(vp->bmp, &rect);
764 fill_rectangle(screen,
765 is->xleft, is->ytop, is->width, is->height,
766 QERGB(0x00, 0x00, 0x00));
771 static inline int compute_mod(int a, int b)
780 static void video_audio_display(VideoState *s)
782 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
783 int ch, channels, h, h2, bgcolor, fgcolor;
785 int rdft_bits, nb_freq;
787 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
789 nb_freq= 1<<(rdft_bits-1);
791 /* compute display index : center on currently output samples */
792 channels = s->audio_st->codec->channels;
793 nb_display_channels = channels;
795 int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
797 delay = audio_write_get_buf_size(s);
800 /* to be more precise, we take into account the time spent since
801 the last buffer computation */
802 if (audio_callback_time) {
803 time_diff = av_gettime() - audio_callback_time;
804 delay += (time_diff * s->audio_st->codec->sample_rate) / 1000000;
807 delay -= data_used / 2;
808 if (delay < data_used)
811 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
812 if(s->show_audio==1){
814 for(i=0; i<1000; i+=channels){
815 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
816 int a= s->sample_array[idx];
817 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
818 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
819 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
821 if(h<score && (b^c)<0){
828 s->last_i_start = i_start;
830 i_start = s->last_i_start;
833 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
834 if(s->show_audio==1){
835 fill_rectangle(screen,
836 s->xleft, s->ytop, s->width, s->height,
839 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
841 /* total height for one channel */
842 h = s->height / nb_display_channels;
843 /* graph height / 2 */
845 for(ch = 0;ch < nb_display_channels; ch++) {
847 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
848 for(x = 0; x < s->width; x++) {
849 y = (s->sample_array[i] * h2) >> 15;
856 fill_rectangle(screen,
857 s->xleft + x, ys, 1, y,
860 if (i >= SAMPLE_ARRAY_SIZE)
861 i -= SAMPLE_ARRAY_SIZE;
865 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
867 for(ch = 1;ch < nb_display_channels; ch++) {
868 y = s->ytop + ch * h;
869 fill_rectangle(screen,
870 s->xleft, y, s->width, 1,
873 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
875 nb_display_channels= FFMIN(nb_display_channels, 2);
876 if(rdft_bits != s->rdft_bits){
877 ff_rdft_end(&s->rdft);
878 ff_rdft_init(&s->rdft, rdft_bits, RDFT);
879 s->rdft_bits= rdft_bits;
882 FFTSample data[2][2*nb_freq];
883 for(ch = 0;ch < nb_display_channels; ch++) {
885 for(x = 0; x < 2*nb_freq; x++) {
886 double w= (x-nb_freq)*(1.0/nb_freq);
887 data[ch][x]= s->sample_array[i]*(1.0-w*w);
889 if (i >= SAMPLE_ARRAY_SIZE)
890 i -= SAMPLE_ARRAY_SIZE;
892 ff_rdft_calc(&s->rdft, data[ch]);
894 //least efficient way to do this, we should of course directly access it but its more than fast enough
895 for(y=0; y<s->height; y++){
896 double w= 1/sqrt(nb_freq);
897 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]));
898 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]));
901 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
903 fill_rectangle(screen,
904 s->xpos, s->height-y, 1, 1,
908 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
910 if(s->xpos >= s->width)
915 static int video_open(VideoState *is){
916 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
919 if(is_full_screen) flags |= SDL_FULLSCREEN;
920 else flags |= SDL_RESIZABLE;
922 if (is_full_screen && fs_screen_width) {
924 h = fs_screen_height;
925 } else if(!is_full_screen && screen_width){
928 }else if (is->video_st && is->video_st->codec->width){
929 w = is->video_st->codec->width;
930 h = is->video_st->codec->height;
936 screen = SDL_SetVideoMode(w, h, 0, flags);
938 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
939 screen = SDL_SetVideoMode(w, h, 24, flags);
942 fprintf(stderr, "SDL: could not set video mode - exiting\n");
945 SDL_WM_SetCaption("FFplay", "FFplay");
947 is->width = screen->w;
948 is->height = screen->h;
953 /* display the current picture, if any */
954 static void video_display(VideoState *is)
957 video_open(cur_stream);
958 if (is->audio_st && is->show_audio)
959 video_audio_display(is);
960 else if (is->video_st)
961 video_image_display(is);
964 static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
967 event.type = FF_REFRESH_EVENT;
968 event.user.data1 = opaque;
969 SDL_PushEvent(&event);
970 return 0; /* 0 means stop timer */
973 /* schedule a video refresh in 'delay' ms */
974 static SDL_TimerID schedule_refresh(VideoState *is, int delay)
976 if(!delay) delay=1; //SDL seems to be buggy when the delay is 0
977 return SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
980 /* get the current audio clock value */
981 static double get_audio_clock(VideoState *is)
984 int hw_buf_size, bytes_per_sec;
985 pts = is->audio_clock;
986 hw_buf_size = audio_write_get_buf_size(is);
989 bytes_per_sec = is->audio_st->codec->sample_rate *
990 2 * is->audio_st->codec->channels;
993 pts -= (double)hw_buf_size / bytes_per_sec;
997 /* get the current video clock value */
998 static double get_video_clock(VideoState *is)
1001 return is->video_current_pts;
1003 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1007 /* get the current external clock value */
1008 static double get_external_clock(VideoState *is)
1012 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1015 /* get the current master clock value */
1016 static double get_master_clock(VideoState *is)
1020 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1022 val = get_video_clock(is);
1024 val = get_audio_clock(is);
1025 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1027 val = get_audio_clock(is);
1029 val = get_video_clock(is);
1031 val = get_external_clock(is);
1036 /* seek in the stream */
1037 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1039 if (!is->seek_req) {
1042 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1044 is->seek_flags |= AVSEEK_FLAG_BYTE;
1049 /* pause or resume the video */
1050 static void stream_pause(VideoState *is)
1053 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1054 if(is->read_pause_return != AVERROR(ENOSYS)){
1055 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1057 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1059 is->paused = !is->paused;
1062 static double compute_frame_delay(double frame_current_pts, VideoState *is)
1064 double actual_delay, delay, sync_threshold, ref_clock, diff;
1066 /* compute nominal delay */
1067 delay = frame_current_pts - is->frame_last_pts;
1068 if (delay <= 0 || delay >= 10.0) {
1069 /* if incorrect delay, use previous one */
1070 delay = is->frame_last_delay;
1072 is->frame_last_delay = delay;
1074 is->frame_last_pts = frame_current_pts;
1076 /* update delay to follow master synchronisation source */
1077 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1078 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1079 /* if video is slave, we try to correct big delays by
1080 duplicating or deleting a frame */
1081 diff = get_video_clock(is) - get_master_clock(is);
1083 /* skip or repeat frame. We take into account the
1084 delay to compute the threshold. I still don't know
1085 if it is the best guess */
1086 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1087 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1088 if (diff <= -sync_threshold)
1090 else if (diff >= sync_threshold)
1095 is->frame_timer += delay;
1096 /* compute the REAL delay (we need to do that to avoid
1098 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
1099 if (actual_delay < 0.010) {
1100 /* XXX: should skip picture */
1101 actual_delay = 0.010;
1104 #if defined(DEBUG_SYNC)
1105 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1106 delay, actual_delay, frame_current_pts, -diff);
1109 return actual_delay;
1112 /* called to display each frame */
1113 static void video_refresh_timer(void *opaque)
1115 VideoState *is = opaque;
1118 SubPicture *sp, *sp2;
1121 if (is->pictq_size == 0) {
1122 fprintf(stderr, "Internal error detected in the SDL timer\n");
1124 /* dequeue the picture */
1125 vp = &is->pictq[is->pictq_rindex];
1127 /* update current video pts */
1128 is->video_current_pts = vp->pts;
1129 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1130 is->video_current_pos = vp->pos;
1132 if(is->subtitle_st) {
1133 if (is->subtitle_stream_changed) {
1134 SDL_LockMutex(is->subpq_mutex);
1136 while (is->subpq_size) {
1137 free_subpicture(&is->subpq[is->subpq_rindex]);
1139 /* update queue size and signal for next picture */
1140 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1141 is->subpq_rindex = 0;
1145 is->subtitle_stream_changed = 0;
1147 SDL_CondSignal(is->subpq_cond);
1148 SDL_UnlockMutex(is->subpq_mutex);
1150 if (is->subpq_size > 0) {
1151 sp = &is->subpq[is->subpq_rindex];
1153 if (is->subpq_size > 1)
1154 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1158 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1159 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1161 free_subpicture(sp);
1163 /* update queue size and signal for next picture */
1164 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1165 is->subpq_rindex = 0;
1167 SDL_LockMutex(is->subpq_mutex);
1169 SDL_CondSignal(is->subpq_cond);
1170 SDL_UnlockMutex(is->subpq_mutex);
1176 /* display picture */
1179 /* update queue size and signal for next picture */
1180 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1181 is->pictq_rindex = 0;
1183 SDL_LockMutex(is->pictq_mutex);
1186 SDL_CondSignal(is->pictq_cond);
1187 SDL_UnlockMutex(is->pictq_mutex);
1189 } else if (is->audio_st) {
1190 /* draw the next audio frame */
1192 schedule_refresh(is, 40);
1194 /* if only audio stream, then display the audio bars (better
1195 than nothing, just to test the implementation */
1197 /* display picture */
1200 schedule_refresh(is, 100);
1203 static int64_t last_time;
1205 int aqsize, vqsize, sqsize;
1208 cur_time = av_gettime();
1209 if (!last_time || (cur_time - last_time) >= 30000) {
1214 aqsize = is->audioq.size;
1216 vqsize = is->videoq.size;
1217 if (is->subtitle_st)
1218 sqsize = is->subtitleq.size;
1220 if (is->audio_st && is->video_st)
1221 av_diff = get_audio_clock(is) - get_video_clock(is);
1222 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB f=%Ld/%Ld \r",
1223 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize, is->faulty_dts, is->faulty_pts);
1225 last_time = cur_time;
1230 /* allocate a picture (needs to do that in main thread to avoid
1231 potential locking problems */
1232 static void alloc_picture(void *opaque)
1234 VideoState *is = opaque;
1237 vp = &is->pictq[is->pictq_windex];
1240 SDL_FreeYUVOverlay(vp->bmp);
1242 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width,
1243 is->video_st->codec->height,
1246 vp->width = is->video_st->codec->width;
1247 vp->height = is->video_st->codec->height;
1249 SDL_LockMutex(is->pictq_mutex);
1251 SDL_CondSignal(is->pictq_cond);
1252 SDL_UnlockMutex(is->pictq_mutex);
1257 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1259 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1264 /* wait until we have space to put a new picture */
1265 SDL_LockMutex(is->pictq_mutex);
1266 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1267 !is->videoq.abort_request) {
1268 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1270 SDL_UnlockMutex(is->pictq_mutex);
1272 if (is->videoq.abort_request)
1275 vp = &is->pictq[is->pictq_windex];
1277 /* alloc or resize hardware picture buffer */
1279 vp->width != is->video_st->codec->width ||
1280 vp->height != is->video_st->codec->height) {
1285 /* the allocation must be done in the main thread to avoid
1287 event.type = FF_ALLOC_EVENT;
1288 event.user.data1 = is;
1289 SDL_PushEvent(&event);
1291 /* wait until the picture is allocated */
1292 SDL_LockMutex(is->pictq_mutex);
1293 while (!vp->allocated && !is->videoq.abort_request) {
1294 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1296 SDL_UnlockMutex(is->pictq_mutex);
1298 if (is->videoq.abort_request)
1302 /* if the frame is not skipped, then display it */
1306 /* get a pointer on the bitmap */
1307 SDL_LockYUVOverlay (vp->bmp);
1309 dst_pix_fmt = PIX_FMT_YUV420P;
1310 memset(&pict,0,sizeof(AVPicture));
1311 pict.data[0] = vp->bmp->pixels[0];
1312 pict.data[1] = vp->bmp->pixels[2];
1313 pict.data[2] = vp->bmp->pixels[1];
1315 pict.linesize[0] = vp->bmp->pitches[0];
1316 pict.linesize[1] = vp->bmp->pitches[2];
1317 pict.linesize[2] = vp->bmp->pitches[1];
1318 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1319 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1320 is->video_st->codec->width, is->video_st->codec->height,
1321 is->video_st->codec->pix_fmt,
1322 is->video_st->codec->width, is->video_st->codec->height,
1323 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1324 if (is->img_convert_ctx == NULL) {
1325 fprintf(stderr, "Cannot initialize the conversion context\n");
1328 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1329 0, is->video_st->codec->height, pict.data, pict.linesize);
1330 /* update the bitmap content */
1331 SDL_UnlockYUVOverlay(vp->bmp);
1336 /* now we can update the picture count */
1337 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1338 is->pictq_windex = 0;
1339 SDL_LockMutex(is->pictq_mutex);
1341 //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
1342 vp->timer_id= schedule_refresh(is, (int)(compute_frame_delay(vp->pts, is) * 1000 + 0.5));
1343 SDL_UnlockMutex(is->pictq_mutex);
1349 * compute the exact PTS for the picture if it is omitted in the stream
1350 * @param pts1 the dts of the pkt / pts of the frame
1352 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1354 double frame_delay, pts;
1359 /* update video clock with pts, if present */
1360 is->video_clock = pts;
1362 pts = is->video_clock;
1364 /* update video clock for next frame */
1365 frame_delay = av_q2d(is->video_st->codec->time_base);
1366 /* for MPEG2, the frame can be repeated, so we update the
1367 clock accordingly */
1368 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1369 is->video_clock += frame_delay;
1371 #if defined(DEBUG_SYNC) && 0
1374 if (src_frame->pict_type == FF_B_TYPE)
1376 else if (src_frame->pict_type == FF_I_TYPE)
1380 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1384 return queue_picture(is, src_frame, pts, pos);
1387 static int video_thread(void *arg)
1389 VideoState *is = arg;
1390 AVPacket pkt1, *pkt = &pkt1;
1391 int len1, got_picture, i;
1392 AVFrame *frame= avcodec_alloc_frame();
1396 while (is->paused && !is->videoq.abort_request) {
1399 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1402 if(pkt->data == flush_pkt.data){
1403 avcodec_flush_buffers(is->video_st->codec);
1405 SDL_LockMutex(is->pictq_mutex);
1406 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1407 for(i=0; i<VIDEO_PICTURE_QUEUE_SIZE; i++){
1408 if(is->pictq[i].timer_id){
1409 SDL_RemoveTimer(is->pictq[i].timer_id);
1410 is->pictq[i].timer_id=0;
1411 schedule_refresh(is, 1);
1414 while (is->pictq_size && !is->videoq.abort_request) {
1415 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1417 is->video_current_pos= -1;
1418 SDL_UnlockMutex(is->pictq_mutex);
1420 is->last_dts_for_fault_detection=
1421 is->last_pts_for_fault_detection= INT64_MIN;
1422 is->frame_last_pts= AV_NOPTS_VALUE;
1423 is->frame_last_delay = 0;
1424 is->frame_timer = (double)av_gettime() / 1000000.0;
1429 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1430 this packet, if any */
1431 is->video_st->codec->reordered_opaque= pkt->pts;
1432 len1 = avcodec_decode_video2(is->video_st->codec,
1433 frame, &got_picture,
1437 if(pkt->dts != AV_NOPTS_VALUE){
1438 is->faulty_dts += pkt->dts <= is->last_dts_for_fault_detection;
1439 is->last_dts_for_fault_detection= pkt->dts;
1441 if(frame->reordered_opaque != AV_NOPTS_VALUE){
1442 is->faulty_pts += frame->reordered_opaque <= is->last_pts_for_fault_detection;
1443 is->last_pts_for_fault_detection= frame->reordered_opaque;
1447 if( ( decoder_reorder_pts==1
1448 || (decoder_reorder_pts && is->faulty_pts<is->faulty_dts)
1449 || pkt->dts == AV_NOPTS_VALUE)
1450 && frame->reordered_opaque != AV_NOPTS_VALUE)
1451 pts= frame->reordered_opaque;
1452 else if(pkt->dts != AV_NOPTS_VALUE)
1456 pts *= av_q2d(is->video_st->time_base);
1461 if (output_picture2(is, frame, pts, pkt->pos) < 0)
1464 av_free_packet(pkt);
1467 stream_pause(cur_stream);
1474 static int subtitle_thread(void *arg)
1476 VideoState *is = arg;
1478 AVPacket pkt1, *pkt = &pkt1;
1479 int len1, got_subtitle;
1482 int r, g, b, y, u, v, a;
1485 while (is->paused && !is->subtitleq.abort_request) {
1488 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1491 if(pkt->data == flush_pkt.data){
1492 avcodec_flush_buffers(is->subtitle_st->codec);
1495 SDL_LockMutex(is->subpq_mutex);
1496 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1497 !is->subtitleq.abort_request) {
1498 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1500 SDL_UnlockMutex(is->subpq_mutex);
1502 if (is->subtitleq.abort_request)
1505 sp = &is->subpq[is->subpq_windex];
1507 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1508 this packet, if any */
1510 if (pkt->pts != AV_NOPTS_VALUE)
1511 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1513 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1514 &sp->sub, &got_subtitle,
1518 if (got_subtitle && sp->sub.format == 0) {
1521 for (i = 0; i < sp->sub.num_rects; i++)
1523 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1525 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1526 y = RGB_TO_Y_CCIR(r, g, b);
1527 u = RGB_TO_U_CCIR(r, g, b, 0);
1528 v = RGB_TO_V_CCIR(r, g, b, 0);
1529 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1533 /* now we can update the picture count */
1534 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1535 is->subpq_windex = 0;
1536 SDL_LockMutex(is->subpq_mutex);
1538 SDL_UnlockMutex(is->subpq_mutex);
1540 av_free_packet(pkt);
1543 // stream_pause(cur_stream);
1549 /* copy samples for viewing in editor window */
1550 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1552 int size, len, channels;
1554 channels = is->audio_st->codec->channels;
1556 size = samples_size / sizeof(short);
1558 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1561 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1563 is->sample_array_index += len;
1564 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1565 is->sample_array_index = 0;
1570 /* return the new audio buffer size (samples can be added or deleted
1571 to get better sync if video or external master clock) */
1572 static int synchronize_audio(VideoState *is, short *samples,
1573 int samples_size1, double pts)
1575 int n, samples_size;
1578 n = 2 * is->audio_st->codec->channels;
1579 samples_size = samples_size1;
1581 /* if not master, then we try to remove or add samples to correct the clock */
1582 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1583 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1584 double diff, avg_diff;
1585 int wanted_size, min_size, max_size, nb_samples;
1587 ref_clock = get_master_clock(is);
1588 diff = get_audio_clock(is) - ref_clock;
1590 if (diff < AV_NOSYNC_THRESHOLD) {
1591 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1592 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1593 /* not enough measures to have a correct estimate */
1594 is->audio_diff_avg_count++;
1596 /* estimate the A-V difference */
1597 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1599 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1600 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1601 nb_samples = samples_size / n;
1603 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1604 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1605 if (wanted_size < min_size)
1606 wanted_size = min_size;
1607 else if (wanted_size > max_size)
1608 wanted_size = max_size;
1610 /* add or remove samples to correction the synchro */
1611 if (wanted_size < samples_size) {
1612 /* remove samples */
1613 samples_size = wanted_size;
1614 } else if (wanted_size > samples_size) {
1615 uint8_t *samples_end, *q;
1619 nb = (samples_size - wanted_size);
1620 samples_end = (uint8_t *)samples + samples_size - n;
1621 q = samples_end + n;
1623 memcpy(q, samples_end, n);
1627 samples_size = wanted_size;
1631 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1632 diff, avg_diff, samples_size - samples_size1,
1633 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1637 /* too big difference : may be initial PTS errors, so
1639 is->audio_diff_avg_count = 0;
1640 is->audio_diff_cum = 0;
1644 return samples_size;
1647 /* decode one audio frame and returns its uncompressed size */
1648 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1650 AVPacket *pkt_temp = &is->audio_pkt_temp;
1651 AVPacket *pkt = &is->audio_pkt;
1652 AVCodecContext *dec= is->audio_st->codec;
1653 int n, len1, data_size;
1657 /* NOTE: the audio packet can contain several frames */
1658 while (pkt_temp->size > 0) {
1659 data_size = sizeof(is->audio_buf1);
1660 len1 = avcodec_decode_audio3(dec,
1661 (int16_t *)is->audio_buf1, &data_size,
1664 /* if error, we skip the frame */
1669 pkt_temp->data += len1;
1670 pkt_temp->size -= len1;
1674 if (dec->sample_fmt != is->audio_src_fmt) {
1675 if (is->reformat_ctx)
1676 av_audio_convert_free(is->reformat_ctx);
1677 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
1678 dec->sample_fmt, 1, NULL, 0);
1679 if (!is->reformat_ctx) {
1680 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
1681 avcodec_get_sample_fmt_name(dec->sample_fmt),
1682 avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
1685 is->audio_src_fmt= dec->sample_fmt;
1688 if (is->reformat_ctx) {
1689 const void *ibuf[6]= {is->audio_buf1};
1690 void *obuf[6]= {is->audio_buf2};
1691 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
1692 int ostride[6]= {2};
1693 int len= data_size/istride[0];
1694 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
1695 printf("av_audio_convert() failed\n");
1698 is->audio_buf= is->audio_buf2;
1699 /* FIXME: existing code assume that data_size equals framesize*channels*2
1700 remove this legacy cruft */
1703 is->audio_buf= is->audio_buf1;
1706 /* if no pts, then compute it */
1707 pts = is->audio_clock;
1709 n = 2 * dec->channels;
1710 is->audio_clock += (double)data_size /
1711 (double)(n * dec->sample_rate);
1712 #if defined(DEBUG_SYNC)
1714 static double last_clock;
1715 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1716 is->audio_clock - last_clock,
1717 is->audio_clock, pts);
1718 last_clock = is->audio_clock;
1724 /* free the current packet */
1726 av_free_packet(pkt);
1728 if (is->paused || is->audioq.abort_request) {
1732 /* read next packet */
1733 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1735 if(pkt->data == flush_pkt.data){
1736 avcodec_flush_buffers(dec);
1740 pkt_temp->data = pkt->data;
1741 pkt_temp->size = pkt->size;
1743 /* if update the audio clock with the pts */
1744 if (pkt->pts != AV_NOPTS_VALUE) {
1745 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1750 /* get the current audio output buffer size, in samples. With SDL, we
1751 cannot have a precise information */
1752 static int audio_write_get_buf_size(VideoState *is)
1754 return is->audio_buf_size - is->audio_buf_index;
1758 /* prepare a new audio buffer */
1759 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1761 VideoState *is = opaque;
1762 int audio_size, len1;
1765 audio_callback_time = av_gettime();
1768 if (is->audio_buf_index >= is->audio_buf_size) {
1769 audio_size = audio_decode_frame(is, &pts);
1770 if (audio_size < 0) {
1771 /* if error, just output silence */
1772 is->audio_buf = is->audio_buf1;
1773 is->audio_buf_size = 1024;
1774 memset(is->audio_buf, 0, is->audio_buf_size);
1777 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1778 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1780 is->audio_buf_size = audio_size;
1782 is->audio_buf_index = 0;
1784 len1 = is->audio_buf_size - is->audio_buf_index;
1787 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1790 is->audio_buf_index += len1;
1794 /* open a given stream. Return 0 if OK */
1795 static int stream_component_open(VideoState *is, int stream_index)
1797 AVFormatContext *ic = is->ic;
1798 AVCodecContext *enc;
1800 SDL_AudioSpec wanted_spec, spec;
1802 if (stream_index < 0 || stream_index >= ic->nb_streams)
1804 enc = ic->streams[stream_index]->codec;
1806 /* prepare audio output */
1807 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1808 if (enc->channels > 0) {
1809 enc->request_channels = FFMIN(2, enc->channels);
1811 enc->request_channels = 2;
1815 codec = avcodec_find_decoder(enc->codec_id);
1816 enc->debug_mv = debug_mv;
1818 enc->workaround_bugs = workaround_bugs;
1819 enc->lowres = lowres;
1820 if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
1821 enc->idct_algo= idct;
1822 if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
1823 enc->skip_frame= skip_frame;
1824 enc->skip_idct= skip_idct;
1825 enc->skip_loop_filter= skip_loop_filter;
1826 enc->error_recognition= error_recognition;
1827 enc->error_concealment= error_concealment;
1828 avcodec_thread_init(enc, thread_count);
1830 set_context_opts(enc, avcodec_opts[enc->codec_type], 0);
1833 avcodec_open(enc, codec) < 0)
1836 /* prepare audio output */
1837 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1838 wanted_spec.freq = enc->sample_rate;
1839 wanted_spec.format = AUDIO_S16SYS;
1840 wanted_spec.channels = enc->channels;
1841 wanted_spec.silence = 0;
1842 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1843 wanted_spec.callback = sdl_audio_callback;
1844 wanted_spec.userdata = is;
1845 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1846 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1849 is->audio_hw_buf_size = spec.size;
1850 is->audio_src_fmt= SAMPLE_FMT_S16;
1853 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
1854 switch(enc->codec_type) {
1855 case CODEC_TYPE_AUDIO:
1856 is->audio_stream = stream_index;
1857 is->audio_st = ic->streams[stream_index];
1858 is->audio_buf_size = 0;
1859 is->audio_buf_index = 0;
1861 /* init averaging filter */
1862 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1863 is->audio_diff_avg_count = 0;
1864 /* since we do not have a precise anough audio fifo fullness,
1865 we correct audio sync only if larger than this threshold */
1866 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
1868 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1869 packet_queue_init(&is->audioq);
1872 case CODEC_TYPE_VIDEO:
1873 is->video_stream = stream_index;
1874 is->video_st = ic->streams[stream_index];
1876 // is->video_current_pts_time = av_gettime();
1878 packet_queue_init(&is->videoq);
1879 is->video_tid = SDL_CreateThread(video_thread, is);
1881 case CODEC_TYPE_SUBTITLE:
1882 is->subtitle_stream = stream_index;
1883 is->subtitle_st = ic->streams[stream_index];
1884 packet_queue_init(&is->subtitleq);
1886 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
1894 static void stream_component_close(VideoState *is, int stream_index)
1896 AVFormatContext *ic = is->ic;
1897 AVCodecContext *enc;
1899 if (stream_index < 0 || stream_index >= ic->nb_streams)
1901 enc = ic->streams[stream_index]->codec;
1903 switch(enc->codec_type) {
1904 case CODEC_TYPE_AUDIO:
1905 packet_queue_abort(&is->audioq);
1909 packet_queue_end(&is->audioq);
1910 if (is->reformat_ctx)
1911 av_audio_convert_free(is->reformat_ctx);
1913 case CODEC_TYPE_VIDEO:
1914 packet_queue_abort(&is->videoq);
1916 /* note: we also signal this mutex to make sure we deblock the
1917 video thread in all cases */
1918 SDL_LockMutex(is->pictq_mutex);
1919 SDL_CondSignal(is->pictq_cond);
1920 SDL_UnlockMutex(is->pictq_mutex);
1922 SDL_WaitThread(is->video_tid, NULL);
1924 packet_queue_end(&is->videoq);
1926 case CODEC_TYPE_SUBTITLE:
1927 packet_queue_abort(&is->subtitleq);
1929 /* note: we also signal this mutex to make sure we deblock the
1930 video thread in all cases */
1931 SDL_LockMutex(is->subpq_mutex);
1932 is->subtitle_stream_changed = 1;
1934 SDL_CondSignal(is->subpq_cond);
1935 SDL_UnlockMutex(is->subpq_mutex);
1937 SDL_WaitThread(is->subtitle_tid, NULL);
1939 packet_queue_end(&is->subtitleq);
1945 ic->streams[stream_index]->discard = AVDISCARD_ALL;
1947 switch(enc->codec_type) {
1948 case CODEC_TYPE_AUDIO:
1949 is->audio_st = NULL;
1950 is->audio_stream = -1;
1952 case CODEC_TYPE_VIDEO:
1953 is->video_st = NULL;
1954 is->video_stream = -1;
1956 case CODEC_TYPE_SUBTITLE:
1957 is->subtitle_st = NULL;
1958 is->subtitle_stream = -1;
1965 /* since we have only one decoding thread, we can use a global
1966 variable instead of a thread local variable */
1967 static VideoState *global_video_state;
1969 static int decode_interrupt_cb(void)
1971 return (global_video_state && global_video_state->abort_request);
1974 /* this thread gets the stream from the disk or the network */
1975 static int decode_thread(void *arg)
1977 VideoState *is = arg;
1978 AVFormatContext *ic;
1979 int err, i, ret, video_index, audio_index, subtitle_index;
1980 AVPacket pkt1, *pkt = &pkt1;
1981 AVFormatParameters params, *ap = ¶ms;
1984 ic = avformat_alloc_context();
1988 subtitle_index = -1;
1989 is->video_stream = -1;
1990 is->audio_stream = -1;
1991 is->subtitle_stream = -1;
1993 global_video_state = is;
1994 url_set_interrupt_cb(decode_interrupt_cb);
1996 memset(ap, 0, sizeof(*ap));
1998 ap->prealloced_context = 1;
1999 ap->width = frame_width;
2000 ap->height= frame_height;
2001 ap->time_base= (AVRational){1, 25};
2002 ap->pix_fmt = frame_pix_fmt;
2004 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2006 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2008 print_error(is->filename, err);
2015 ic->flags |= AVFMT_FLAG_GENPTS;
2017 err = av_find_stream_info(ic);
2019 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2024 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2027 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2029 /* if seeking requested, we execute it */
2030 if (start_time != AV_NOPTS_VALUE) {
2033 timestamp = start_time;
2034 /* add the stream start time */
2035 if (ic->start_time != AV_NOPTS_VALUE)
2036 timestamp += ic->start_time;
2037 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2039 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2040 is->filename, (double)timestamp / AV_TIME_BASE);
2044 for(i = 0; i < ic->nb_streams; i++) {
2045 AVCodecContext *enc = ic->streams[i]->codec;
2046 ic->streams[i]->discard = AVDISCARD_ALL;
2047 switch(enc->codec_type) {
2048 case CODEC_TYPE_AUDIO:
2049 if (wanted_audio_stream-- >= 0 && !audio_disable)
2052 case CODEC_TYPE_VIDEO:
2053 if (wanted_video_stream-- >= 0 && !video_disable)
2056 case CODEC_TYPE_SUBTITLE:
2057 if (wanted_subtitle_stream-- >= 0 && !video_disable)
2065 dump_format(ic, 0, is->filename, 0);
2068 /* open the streams */
2069 if (audio_index >= 0) {
2070 stream_component_open(is, audio_index);
2073 if (video_index >= 0) {
2074 stream_component_open(is, video_index);
2076 /* add the refresh timer to draw the picture */
2077 schedule_refresh(is, 40);
2079 if (!display_disable)
2083 if (subtitle_index >= 0) {
2084 stream_component_open(is, subtitle_index);
2087 if (is->video_stream < 0 && is->audio_stream < 0) {
2088 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2094 if (is->abort_request)
2096 if (is->paused != is->last_paused) {
2097 is->last_paused = is->paused;
2099 is->read_pause_return= av_read_pause(ic);
2103 #if CONFIG_RTSP_DEMUXER
2104 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2105 /* wait 10 ms to avoid trying to get another packet */
2112 int64_t seek_target= is->seek_pos;
2113 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2114 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2115 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2116 // of the seek_pos/seek_rel variables
2118 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2120 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2122 if (is->audio_stream >= 0) {
2123 packet_queue_flush(&is->audioq);
2124 packet_queue_put(&is->audioq, &flush_pkt);
2126 if (is->subtitle_stream >= 0) {
2127 packet_queue_flush(&is->subtitleq);
2128 packet_queue_put(&is->subtitleq, &flush_pkt);
2130 if (is->video_stream >= 0) {
2131 packet_queue_flush(&is->videoq);
2132 packet_queue_put(&is->videoq, &flush_pkt);
2139 /* if the queue are full, no need to read more */
2140 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2141 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2142 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2143 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2148 if(url_feof(ic->pb) || eof) {
2149 if(is->video_stream >= 0){
2150 av_init_packet(pkt);
2153 pkt->stream_index= is->video_stream;
2154 packet_queue_put(&is->videoq, pkt);
2157 if(autoexit && is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2163 ret = av_read_frame(ic, pkt);
2165 if (ret == AVERROR_EOF)
2167 if (url_ferror(ic->pb))
2169 SDL_Delay(100); /* wait for user event */
2172 if (pkt->stream_index == is->audio_stream) {
2173 packet_queue_put(&is->audioq, pkt);
2174 } else if (pkt->stream_index == is->video_stream) {
2175 packet_queue_put(&is->videoq, pkt);
2176 } else if (pkt->stream_index == is->subtitle_stream) {
2177 packet_queue_put(&is->subtitleq, pkt);
2179 av_free_packet(pkt);
2182 /* wait until the end */
2183 while (!is->abort_request) {
2189 /* disable interrupting */
2190 global_video_state = NULL;
2192 /* close each stream */
2193 if (is->audio_stream >= 0)
2194 stream_component_close(is, is->audio_stream);
2195 if (is->video_stream >= 0)
2196 stream_component_close(is, is->video_stream);
2197 if (is->subtitle_stream >= 0)
2198 stream_component_close(is, is->subtitle_stream);
2200 av_close_input_file(is->ic);
2201 is->ic = NULL; /* safety */
2203 url_set_interrupt_cb(NULL);
2208 event.type = FF_QUIT_EVENT;
2209 event.user.data1 = is;
2210 SDL_PushEvent(&event);
2215 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2219 is = av_mallocz(sizeof(VideoState));
2222 av_strlcpy(is->filename, filename, sizeof(is->filename));
2223 is->iformat = iformat;
2227 /* start video display */
2228 is->pictq_mutex = SDL_CreateMutex();
2229 is->pictq_cond = SDL_CreateCond();
2231 is->subpq_mutex = SDL_CreateMutex();
2232 is->subpq_cond = SDL_CreateCond();
2234 is->av_sync_type = av_sync_type;
2235 is->parse_tid = SDL_CreateThread(decode_thread, is);
2236 if (!is->parse_tid) {
2243 static void stream_close(VideoState *is)
2247 /* XXX: use a special url_shutdown call to abort parse cleanly */
2248 is->abort_request = 1;
2249 SDL_WaitThread(is->parse_tid, NULL);
2251 /* free all pictures */
2252 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2255 SDL_FreeYUVOverlay(vp->bmp);
2259 SDL_DestroyMutex(is->pictq_mutex);
2260 SDL_DestroyCond(is->pictq_cond);
2261 SDL_DestroyMutex(is->subpq_mutex);
2262 SDL_DestroyCond(is->subpq_cond);
2263 if (is->img_convert_ctx)
2264 sws_freeContext(is->img_convert_ctx);
2268 static void stream_cycle_channel(VideoState *is, int codec_type)
2270 AVFormatContext *ic = is->ic;
2271 int start_index, stream_index;
2274 if (codec_type == CODEC_TYPE_VIDEO)
2275 start_index = is->video_stream;
2276 else if (codec_type == CODEC_TYPE_AUDIO)
2277 start_index = is->audio_stream;
2279 start_index = is->subtitle_stream;
2280 if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0))
2282 stream_index = start_index;
2284 if (++stream_index >= is->ic->nb_streams)
2286 if (codec_type == CODEC_TYPE_SUBTITLE)
2293 if (stream_index == start_index)
2295 st = ic->streams[stream_index];
2296 if (st->codec->codec_type == codec_type) {
2297 /* check that parameters are OK */
2298 switch(codec_type) {
2299 case CODEC_TYPE_AUDIO:
2300 if (st->codec->sample_rate != 0 &&
2301 st->codec->channels != 0)
2304 case CODEC_TYPE_VIDEO:
2305 case CODEC_TYPE_SUBTITLE:
2313 stream_component_close(is, start_index);
2314 stream_component_open(is, stream_index);
2318 static void toggle_full_screen(void)
2320 is_full_screen = !is_full_screen;
2321 if (!fs_screen_width) {
2322 /* use default SDL method */
2323 // SDL_WM_ToggleFullScreen(screen);
2325 video_open(cur_stream);
2328 static void toggle_pause(void)
2331 stream_pause(cur_stream);
2335 static void step_to_next_frame(void)
2338 /* if the stream is paused unpause it, then step */
2339 if (cur_stream->paused)
2340 stream_pause(cur_stream);
2345 static void do_exit(void)
2349 stream_close(cur_stream);
2352 for (i = 0; i < CODEC_TYPE_NB; i++)
2353 av_free(avcodec_opts[i]);
2354 av_free(avformat_opts);
2362 static void toggle_audio_display(void)
2365 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2366 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2367 fill_rectangle(screen,
2368 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2370 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2374 /* handle an event sent by the GUI */
2375 static void event_loop(void)
2378 double incr, pos, frac;
2382 SDL_WaitEvent(&event);
2383 switch(event.type) {
2385 switch(event.key.keysym.sym) {
2391 toggle_full_screen();
2397 case SDLK_s: //S: Step to next frame
2398 step_to_next_frame();
2402 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
2406 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
2410 stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE);
2413 toggle_audio_display();
2428 if (seek_by_bytes) {
2429 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2430 pos= cur_stream->video_current_pos;
2431 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2432 pos= cur_stream->audio_pkt.pos;
2434 pos = url_ftell(cur_stream->ic->pb);
2435 if (cur_stream->ic->bit_rate)
2436 incr *= cur_stream->ic->bit_rate / 8.0;
2440 stream_seek(cur_stream, pos, incr, 1);
2442 pos = get_master_clock(cur_stream);
2444 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2452 case SDL_MOUSEBUTTONDOWN:
2453 case SDL_MOUSEMOTION:
2454 if(event.type ==SDL_MOUSEBUTTONDOWN){
2457 if(event.motion.state != SDL_PRESSED)
2462 if(seek_by_bytes || cur_stream->ic->duration<=0){
2463 uint64_t size= url_fsize(cur_stream->ic->pb);
2464 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2468 int tns, thh, tmm, tss;
2469 tns = cur_stream->ic->duration/1000000LL;
2471 tmm = (tns%3600)/60;
2473 frac = x/cur_stream->width;
2478 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2479 hh, mm, ss, thh, tmm, tss);
2480 ts = frac*cur_stream->ic->duration;
2481 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2482 ts += cur_stream->ic->start_time;
2483 stream_seek(cur_stream, ts, 0, 0);
2487 case SDL_VIDEORESIZE:
2489 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2490 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2491 screen_width = cur_stream->width = event.resize.w;
2492 screen_height= cur_stream->height= event.resize.h;
2499 case FF_ALLOC_EVENT:
2500 video_open(event.user.data1);
2501 alloc_picture(event.user.data1);
2503 case FF_REFRESH_EVENT:
2504 video_refresh_timer(event.user.data1);
2512 static void opt_frame_size(const char *arg)
2514 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2515 fprintf(stderr, "Incorrect frame size\n");
2518 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2519 fprintf(stderr, "Frame size must be a multiple of 2\n");
2524 static int opt_width(const char *opt, const char *arg)
2526 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2530 static int opt_height(const char *opt, const char *arg)
2532 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2536 static void opt_format(const char *arg)
2538 file_iformat = av_find_input_format(arg);
2539 if (!file_iformat) {
2540 fprintf(stderr, "Unknown input format: %s\n", arg);
2545 static void opt_frame_pix_fmt(const char *arg)
2547 frame_pix_fmt = av_get_pix_fmt(arg);
2550 static int opt_sync(const char *opt, const char *arg)
2552 if (!strcmp(arg, "audio"))
2553 av_sync_type = AV_SYNC_AUDIO_MASTER;
2554 else if (!strcmp(arg, "video"))
2555 av_sync_type = AV_SYNC_VIDEO_MASTER;
2556 else if (!strcmp(arg, "ext"))
2557 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2559 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2565 static int opt_seek(const char *opt, const char *arg)
2567 start_time = parse_time_or_die(opt, arg, 1);
2571 static int opt_debug(const char *opt, const char *arg)
2573 av_log_set_level(99);
2574 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2578 static int opt_vismv(const char *opt, const char *arg)
2580 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2584 static int opt_thread_count(const char *opt, const char *arg)
2586 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2588 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2593 static const OptionDef options[] = {
2594 #include "cmdutils_common_opts.h"
2595 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
2596 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
2597 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2598 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2599 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2600 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2601 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_audio_stream}, "select desired audio stream", "stream_number" },
2602 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_video_stream}, "select desired video stream", "stream_number" },
2603 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_subtitle_stream}, "select desired subtitle stream", "stream_number" },
2604 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2605 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
2606 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2607 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2608 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2609 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2610 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2611 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2612 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2613 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2614 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2615 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2616 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2617 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2618 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2619 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2620 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2621 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
2622 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2623 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2624 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2625 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
2626 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
2630 static void show_usage(void)
2632 printf("Simple media player\n");
2633 printf("usage: ffplay [options] input_file\n");
2637 static void show_help(void)
2640 show_help_options(options, "Main options:\n",
2642 show_help_options(options, "\nAdvanced options:\n",
2643 OPT_EXPERT, OPT_EXPERT);
2644 printf("\nWhile playing:\n"
2646 "f toggle full screen\n"
2648 "a cycle audio channel\n"
2649 "v cycle video channel\n"
2650 "t cycle subtitle channel\n"
2651 "w show audio waves\n"
2652 "left/right seek backward/forward 10 seconds\n"
2653 "down/up seek backward/forward 1 minute\n"
2654 "mouse click seek to percentage in file corresponding to fraction of width\n"
2658 static void opt_input_file(const char *filename)
2660 if (!strcmp(filename, "-"))
2662 input_filename = filename;
2665 /* Called from the main */
2666 int main(int argc, char **argv)
2670 /* register all codecs, demux and protocols */
2671 avcodec_register_all();
2672 avdevice_register_all();
2675 for(i=0; i<CODEC_TYPE_NB; i++){
2676 avcodec_opts[i]= avcodec_alloc_context2(i);
2678 avformat_opts = avformat_alloc_context();
2679 sws_opts = sws_getContext(16,16,0, 16,16,0, sws_flags, NULL,NULL,NULL);
2683 parse_options(argc, argv, options, opt_input_file);
2685 if (!input_filename) {
2687 fprintf(stderr, "An input file must be specified\n");
2688 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
2692 if (display_disable) {
2695 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
2696 #if !defined(__MINGW32__) && !defined(__APPLE__)
2697 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
2699 if (SDL_Init (flags)) {
2700 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
2704 if (!display_disable) {
2705 #if HAVE_SDL_VIDEO_SIZE
2706 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2707 fs_screen_width = vi->current_w;
2708 fs_screen_height = vi->current_h;
2712 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
2713 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
2714 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
2716 av_init_packet(&flush_pkt);
2717 flush_pkt.data= "FLUSH";
2719 cur_stream = stream_open(input_filename, file_iformat);