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;
786 /* compute display index : center on currently output samples */
787 channels = s->audio_st->codec->channels;
788 nb_display_channels = channels;
791 delay = audio_write_get_buf_size(s);
794 /* to be more precise, we take into account the time spent since
795 the last buffer computation */
796 if (audio_callback_time) {
797 time_diff = av_gettime() - audio_callback_time;
798 delay += (time_diff * s->audio_st->codec->sample_rate) / 1000000;
801 delay -= s->width / 2;
802 if (delay < s->width)
805 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
806 if(s->show_audio==1){
808 for(i=0; i<1000; i+=channels){
809 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
810 int a= s->sample_array[idx];
811 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
812 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
813 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
815 if(h<score && (b^c)<0){
822 s->last_i_start = i_start;
824 i_start = s->last_i_start;
827 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
828 if(s->show_audio==1){
829 fill_rectangle(screen,
830 s->xleft, s->ytop, s->width, s->height,
833 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
835 /* total height for one channel */
836 h = s->height / nb_display_channels;
837 /* graph height / 2 */
839 for(ch = 0;ch < nb_display_channels; ch++) {
841 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
842 for(x = 0; x < s->width; x++) {
843 y = (s->sample_array[i] * h2) >> 15;
850 fill_rectangle(screen,
851 s->xleft + x, ys, 1, y,
854 if (i >= SAMPLE_ARRAY_SIZE)
855 i -= SAMPLE_ARRAY_SIZE;
859 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
861 for(ch = 1;ch < nb_display_channels; ch++) {
862 y = s->ytop + ch * h;
863 fill_rectangle(screen,
864 s->xleft, y, s->width, 1,
867 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
869 int rdft_bits, nb_freq;
870 nb_display_channels= FFMIN(nb_display_channels, 2);
871 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
873 if(rdft_bits != s->rdft_bits){
874 ff_rdft_end(&s->rdft);
875 ff_rdft_init(&s->rdft, rdft_bits, RDFT);
876 s->rdft_bits= rdft_bits;
878 nb_freq= 1<<(rdft_bits-1);
880 FFTSample data[2][2*nb_freq];
881 for(ch = 0;ch < nb_display_channels; ch++) {
883 for(x = 0; x < 2*nb_freq; x++) {
884 double w= (x-nb_freq)*(1.0/nb_freq);
885 data[ch][x]= s->sample_array[i]*(1.0-w*w);
887 if (i >= SAMPLE_ARRAY_SIZE)
888 i -= SAMPLE_ARRAY_SIZE;
890 ff_rdft_calc(&s->rdft, data[ch]);
892 //least efficient way to do this, we should of course directly access it but its more than fast enough
893 for(y=0; y<s->height; y++){
894 double w= 1/sqrt(nb_freq);
895 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]));
896 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]));
899 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
901 fill_rectangle(screen,
902 s->xpos, s->height-y, 1, 1,
906 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
908 if(s->xpos >= s->width)
913 static int video_open(VideoState *is){
914 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
917 if(is_full_screen) flags |= SDL_FULLSCREEN;
918 else flags |= SDL_RESIZABLE;
920 if (is_full_screen && fs_screen_width) {
922 h = fs_screen_height;
923 } else if(!is_full_screen && screen_width){
926 }else if (is->video_st && is->video_st->codec->width){
927 w = is->video_st->codec->width;
928 h = is->video_st->codec->height;
934 screen = SDL_SetVideoMode(w, h, 0, flags);
936 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
937 screen = SDL_SetVideoMode(w, h, 24, flags);
940 fprintf(stderr, "SDL: could not set video mode - exiting\n");
943 SDL_WM_SetCaption("FFplay", "FFplay");
945 is->width = screen->w;
946 is->height = screen->h;
951 /* display the current picture, if any */
952 static void video_display(VideoState *is)
955 video_open(cur_stream);
956 if (is->audio_st && is->show_audio)
957 video_audio_display(is);
958 else if (is->video_st)
959 video_image_display(is);
962 static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
965 event.type = FF_REFRESH_EVENT;
966 event.user.data1 = opaque;
967 SDL_PushEvent(&event);
968 return 0; /* 0 means stop timer */
971 /* schedule a video refresh in 'delay' ms */
972 static SDL_TimerID schedule_refresh(VideoState *is, int delay)
974 if(!delay) delay=1; //SDL seems to be buggy when the delay is 0
975 return SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
978 /* get the current audio clock value */
979 static double get_audio_clock(VideoState *is)
982 int hw_buf_size, bytes_per_sec;
983 pts = is->audio_clock;
984 hw_buf_size = audio_write_get_buf_size(is);
987 bytes_per_sec = is->audio_st->codec->sample_rate *
988 2 * is->audio_st->codec->channels;
991 pts -= (double)hw_buf_size / bytes_per_sec;
995 /* get the current video clock value */
996 static double get_video_clock(VideoState *is)
999 return is->video_current_pts;
1001 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1005 /* get the current external clock value */
1006 static double get_external_clock(VideoState *is)
1010 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1013 /* get the current master clock value */
1014 static double get_master_clock(VideoState *is)
1018 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1020 val = get_video_clock(is);
1022 val = get_audio_clock(is);
1023 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1025 val = get_audio_clock(is);
1027 val = get_video_clock(is);
1029 val = get_external_clock(is);
1034 /* seek in the stream */
1035 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1037 if (!is->seek_req) {
1040 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1042 is->seek_flags |= AVSEEK_FLAG_BYTE;
1047 /* pause or resume the video */
1048 static void stream_pause(VideoState *is)
1051 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1052 if(is->read_pause_return != AVERROR(ENOSYS)){
1053 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1055 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1057 is->paused = !is->paused;
1060 static double compute_frame_delay(double frame_current_pts, VideoState *is)
1062 double actual_delay, delay, sync_threshold, ref_clock, diff;
1064 /* compute nominal delay */
1065 delay = frame_current_pts - is->frame_last_pts;
1066 if (delay <= 0 || delay >= 10.0) {
1067 /* if incorrect delay, use previous one */
1068 delay = is->frame_last_delay;
1070 is->frame_last_delay = delay;
1072 is->frame_last_pts = frame_current_pts;
1074 /* update delay to follow master synchronisation source */
1075 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1076 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1077 /* if video is slave, we try to correct big delays by
1078 duplicating or deleting a frame */
1079 diff = get_video_clock(is) - get_master_clock(is);
1081 /* skip or repeat frame. We take into account the
1082 delay to compute the threshold. I still don't know
1083 if it is the best guess */
1084 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1085 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1086 if (diff <= -sync_threshold)
1088 else if (diff >= sync_threshold)
1093 is->frame_timer += delay;
1094 /* compute the REAL delay (we need to do that to avoid
1096 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
1097 if (actual_delay < 0.010) {
1098 /* XXX: should skip picture */
1099 actual_delay = 0.010;
1102 #if defined(DEBUG_SYNC)
1103 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1104 delay, actual_delay, frame_current_pts, -diff);
1107 return actual_delay;
1110 /* called to display each frame */
1111 static void video_refresh_timer(void *opaque)
1113 VideoState *is = opaque;
1116 SubPicture *sp, *sp2;
1119 if (is->pictq_size == 0) {
1120 fprintf(stderr, "Internal error detected in the SDL timer\n");
1122 /* dequeue the picture */
1123 vp = &is->pictq[is->pictq_rindex];
1125 /* update current video pts */
1126 is->video_current_pts = vp->pts;
1127 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1128 is->video_current_pos = vp->pos;
1130 if(is->subtitle_st) {
1131 if (is->subtitle_stream_changed) {
1132 SDL_LockMutex(is->subpq_mutex);
1134 while (is->subpq_size) {
1135 free_subpicture(&is->subpq[is->subpq_rindex]);
1137 /* update queue size and signal for next picture */
1138 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1139 is->subpq_rindex = 0;
1143 is->subtitle_stream_changed = 0;
1145 SDL_CondSignal(is->subpq_cond);
1146 SDL_UnlockMutex(is->subpq_mutex);
1148 if (is->subpq_size > 0) {
1149 sp = &is->subpq[is->subpq_rindex];
1151 if (is->subpq_size > 1)
1152 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1156 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1157 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1159 free_subpicture(sp);
1161 /* update queue size and signal for next picture */
1162 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1163 is->subpq_rindex = 0;
1165 SDL_LockMutex(is->subpq_mutex);
1167 SDL_CondSignal(is->subpq_cond);
1168 SDL_UnlockMutex(is->subpq_mutex);
1174 /* display picture */
1177 /* update queue size and signal for next picture */
1178 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1179 is->pictq_rindex = 0;
1181 SDL_LockMutex(is->pictq_mutex);
1184 SDL_CondSignal(is->pictq_cond);
1185 SDL_UnlockMutex(is->pictq_mutex);
1187 } else if (is->audio_st) {
1188 /* draw the next audio frame */
1190 schedule_refresh(is, 40);
1192 /* if only audio stream, then display the audio bars (better
1193 than nothing, just to test the implementation */
1195 /* display picture */
1198 schedule_refresh(is, 100);
1201 static int64_t last_time;
1203 int aqsize, vqsize, sqsize;
1206 cur_time = av_gettime();
1207 if (!last_time || (cur_time - last_time) >= 30000) {
1212 aqsize = is->audioq.size;
1214 vqsize = is->videoq.size;
1215 if (is->subtitle_st)
1216 sqsize = is->subtitleq.size;
1218 if (is->audio_st && is->video_st)
1219 av_diff = get_audio_clock(is) - get_video_clock(is);
1220 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB f=%Ld/%Ld \r",
1221 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize, is->faulty_dts, is->faulty_pts);
1223 last_time = cur_time;
1228 /* allocate a picture (needs to do that in main thread to avoid
1229 potential locking problems */
1230 static void alloc_picture(void *opaque)
1232 VideoState *is = opaque;
1235 vp = &is->pictq[is->pictq_windex];
1238 SDL_FreeYUVOverlay(vp->bmp);
1240 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width,
1241 is->video_st->codec->height,
1244 vp->width = is->video_st->codec->width;
1245 vp->height = is->video_st->codec->height;
1247 SDL_LockMutex(is->pictq_mutex);
1249 SDL_CondSignal(is->pictq_cond);
1250 SDL_UnlockMutex(is->pictq_mutex);
1255 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1257 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1262 /* wait until we have space to put a new picture */
1263 SDL_LockMutex(is->pictq_mutex);
1264 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1265 !is->videoq.abort_request) {
1266 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1268 SDL_UnlockMutex(is->pictq_mutex);
1270 if (is->videoq.abort_request)
1273 vp = &is->pictq[is->pictq_windex];
1275 /* alloc or resize hardware picture buffer */
1277 vp->width != is->video_st->codec->width ||
1278 vp->height != is->video_st->codec->height) {
1283 /* the allocation must be done in the main thread to avoid
1285 event.type = FF_ALLOC_EVENT;
1286 event.user.data1 = is;
1287 SDL_PushEvent(&event);
1289 /* wait until the picture is allocated */
1290 SDL_LockMutex(is->pictq_mutex);
1291 while (!vp->allocated && !is->videoq.abort_request) {
1292 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1294 SDL_UnlockMutex(is->pictq_mutex);
1296 if (is->videoq.abort_request)
1300 /* if the frame is not skipped, then display it */
1304 /* get a pointer on the bitmap */
1305 SDL_LockYUVOverlay (vp->bmp);
1307 dst_pix_fmt = PIX_FMT_YUV420P;
1308 memset(&pict,0,sizeof(AVPicture));
1309 pict.data[0] = vp->bmp->pixels[0];
1310 pict.data[1] = vp->bmp->pixels[2];
1311 pict.data[2] = vp->bmp->pixels[1];
1313 pict.linesize[0] = vp->bmp->pitches[0];
1314 pict.linesize[1] = vp->bmp->pitches[2];
1315 pict.linesize[2] = vp->bmp->pitches[1];
1316 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1317 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1318 is->video_st->codec->width, is->video_st->codec->height,
1319 is->video_st->codec->pix_fmt,
1320 is->video_st->codec->width, is->video_st->codec->height,
1321 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1322 if (is->img_convert_ctx == NULL) {
1323 fprintf(stderr, "Cannot initialize the conversion context\n");
1326 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1327 0, is->video_st->codec->height, pict.data, pict.linesize);
1328 /* update the bitmap content */
1329 SDL_UnlockYUVOverlay(vp->bmp);
1334 /* now we can update the picture count */
1335 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1336 is->pictq_windex = 0;
1337 SDL_LockMutex(is->pictq_mutex);
1339 //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
1340 vp->timer_id= schedule_refresh(is, (int)(compute_frame_delay(vp->pts, is) * 1000 + 0.5));
1341 SDL_UnlockMutex(is->pictq_mutex);
1347 * compute the exact PTS for the picture if it is omitted in the stream
1348 * @param pts1 the dts of the pkt / pts of the frame
1350 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1352 double frame_delay, pts;
1357 /* update video clock with pts, if present */
1358 is->video_clock = pts;
1360 pts = is->video_clock;
1362 /* update video clock for next frame */
1363 frame_delay = av_q2d(is->video_st->codec->time_base);
1364 /* for MPEG2, the frame can be repeated, so we update the
1365 clock accordingly */
1366 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1367 is->video_clock += frame_delay;
1369 #if defined(DEBUG_SYNC) && 0
1372 if (src_frame->pict_type == FF_B_TYPE)
1374 else if (src_frame->pict_type == FF_I_TYPE)
1378 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1382 return queue_picture(is, src_frame, pts, pos);
1385 static int video_thread(void *arg)
1387 VideoState *is = arg;
1388 AVPacket pkt1, *pkt = &pkt1;
1389 int len1, got_picture, i;
1390 AVFrame *frame= avcodec_alloc_frame();
1394 while (is->paused && !is->videoq.abort_request) {
1397 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1400 if(pkt->data == flush_pkt.data){
1401 avcodec_flush_buffers(is->video_st->codec);
1403 SDL_LockMutex(is->pictq_mutex);
1404 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1405 for(i=0; i<VIDEO_PICTURE_QUEUE_SIZE; i++){
1406 if(is->pictq[i].timer_id){
1407 SDL_RemoveTimer(is->pictq[i].timer_id);
1408 is->pictq[i].timer_id=0;
1409 schedule_refresh(is, 1);
1412 while (is->pictq_size && !is->videoq.abort_request) {
1413 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1415 is->video_current_pos= -1;
1416 SDL_UnlockMutex(is->pictq_mutex);
1418 is->last_dts_for_fault_detection=
1419 is->last_pts_for_fault_detection= INT64_MIN;
1420 is->frame_last_pts= AV_NOPTS_VALUE;
1421 is->frame_last_delay = 0;
1422 is->frame_timer = (double)av_gettime() / 1000000.0;
1427 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1428 this packet, if any */
1429 is->video_st->codec->reordered_opaque= pkt->pts;
1430 len1 = avcodec_decode_video2(is->video_st->codec,
1431 frame, &got_picture,
1435 if(pkt->dts != AV_NOPTS_VALUE){
1436 is->faulty_dts += pkt->dts <= is->last_dts_for_fault_detection;
1437 is->last_dts_for_fault_detection= pkt->dts;
1439 if(frame->reordered_opaque != AV_NOPTS_VALUE){
1440 is->faulty_pts += frame->reordered_opaque <= is->last_pts_for_fault_detection;
1441 is->last_pts_for_fault_detection= frame->reordered_opaque;
1445 if( ( decoder_reorder_pts==1
1446 || (decoder_reorder_pts && is->faulty_pts<is->faulty_dts)
1447 || pkt->dts == AV_NOPTS_VALUE)
1448 && frame->reordered_opaque != AV_NOPTS_VALUE)
1449 pts= frame->reordered_opaque;
1450 else if(pkt->dts != AV_NOPTS_VALUE)
1454 pts *= av_q2d(is->video_st->time_base);
1459 if (output_picture2(is, frame, pts, pkt->pos) < 0)
1462 av_free_packet(pkt);
1465 stream_pause(cur_stream);
1472 static int subtitle_thread(void *arg)
1474 VideoState *is = arg;
1476 AVPacket pkt1, *pkt = &pkt1;
1477 int len1, got_subtitle;
1480 int r, g, b, y, u, v, a;
1483 while (is->paused && !is->subtitleq.abort_request) {
1486 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1489 if(pkt->data == flush_pkt.data){
1490 avcodec_flush_buffers(is->subtitle_st->codec);
1493 SDL_LockMutex(is->subpq_mutex);
1494 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1495 !is->subtitleq.abort_request) {
1496 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1498 SDL_UnlockMutex(is->subpq_mutex);
1500 if (is->subtitleq.abort_request)
1503 sp = &is->subpq[is->subpq_windex];
1505 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1506 this packet, if any */
1508 if (pkt->pts != AV_NOPTS_VALUE)
1509 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1511 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1512 &sp->sub, &got_subtitle,
1516 if (got_subtitle && sp->sub.format == 0) {
1519 for (i = 0; i < sp->sub.num_rects; i++)
1521 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1523 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1524 y = RGB_TO_Y_CCIR(r, g, b);
1525 u = RGB_TO_U_CCIR(r, g, b, 0);
1526 v = RGB_TO_V_CCIR(r, g, b, 0);
1527 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1531 /* now we can update the picture count */
1532 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1533 is->subpq_windex = 0;
1534 SDL_LockMutex(is->subpq_mutex);
1536 SDL_UnlockMutex(is->subpq_mutex);
1538 av_free_packet(pkt);
1541 // stream_pause(cur_stream);
1547 /* copy samples for viewing in editor window */
1548 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1550 int size, len, channels;
1552 channels = is->audio_st->codec->channels;
1554 size = samples_size / sizeof(short);
1556 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1559 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1561 is->sample_array_index += len;
1562 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1563 is->sample_array_index = 0;
1568 /* return the new audio buffer size (samples can be added or deleted
1569 to get better sync if video or external master clock) */
1570 static int synchronize_audio(VideoState *is, short *samples,
1571 int samples_size1, double pts)
1573 int n, samples_size;
1576 n = 2 * is->audio_st->codec->channels;
1577 samples_size = samples_size1;
1579 /* if not master, then we try to remove or add samples to correct the clock */
1580 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1581 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1582 double diff, avg_diff;
1583 int wanted_size, min_size, max_size, nb_samples;
1585 ref_clock = get_master_clock(is);
1586 diff = get_audio_clock(is) - ref_clock;
1588 if (diff < AV_NOSYNC_THRESHOLD) {
1589 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1590 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1591 /* not enough measures to have a correct estimate */
1592 is->audio_diff_avg_count++;
1594 /* estimate the A-V difference */
1595 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1597 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1598 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1599 nb_samples = samples_size / n;
1601 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1602 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1603 if (wanted_size < min_size)
1604 wanted_size = min_size;
1605 else if (wanted_size > max_size)
1606 wanted_size = max_size;
1608 /* add or remove samples to correction the synchro */
1609 if (wanted_size < samples_size) {
1610 /* remove samples */
1611 samples_size = wanted_size;
1612 } else if (wanted_size > samples_size) {
1613 uint8_t *samples_end, *q;
1617 nb = (samples_size - wanted_size);
1618 samples_end = (uint8_t *)samples + samples_size - n;
1619 q = samples_end + n;
1621 memcpy(q, samples_end, n);
1625 samples_size = wanted_size;
1629 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1630 diff, avg_diff, samples_size - samples_size1,
1631 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1635 /* too big difference : may be initial PTS errors, so
1637 is->audio_diff_avg_count = 0;
1638 is->audio_diff_cum = 0;
1642 return samples_size;
1645 /* decode one audio frame and returns its uncompressed size */
1646 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1648 AVPacket *pkt_temp = &is->audio_pkt_temp;
1649 AVPacket *pkt = &is->audio_pkt;
1650 AVCodecContext *dec= is->audio_st->codec;
1651 int n, len1, data_size;
1655 /* NOTE: the audio packet can contain several frames */
1656 while (pkt_temp->size > 0) {
1657 data_size = sizeof(is->audio_buf1);
1658 len1 = avcodec_decode_audio3(dec,
1659 (int16_t *)is->audio_buf1, &data_size,
1662 /* if error, we skip the frame */
1667 pkt_temp->data += len1;
1668 pkt_temp->size -= len1;
1672 if (dec->sample_fmt != is->audio_src_fmt) {
1673 if (is->reformat_ctx)
1674 av_audio_convert_free(is->reformat_ctx);
1675 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
1676 dec->sample_fmt, 1, NULL, 0);
1677 if (!is->reformat_ctx) {
1678 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
1679 avcodec_get_sample_fmt_name(dec->sample_fmt),
1680 avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
1683 is->audio_src_fmt= dec->sample_fmt;
1686 if (is->reformat_ctx) {
1687 const void *ibuf[6]= {is->audio_buf1};
1688 void *obuf[6]= {is->audio_buf2};
1689 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
1690 int ostride[6]= {2};
1691 int len= data_size/istride[0];
1692 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
1693 printf("av_audio_convert() failed\n");
1696 is->audio_buf= is->audio_buf2;
1697 /* FIXME: existing code assume that data_size equals framesize*channels*2
1698 remove this legacy cruft */
1701 is->audio_buf= is->audio_buf1;
1704 /* if no pts, then compute it */
1705 pts = is->audio_clock;
1707 n = 2 * dec->channels;
1708 is->audio_clock += (double)data_size /
1709 (double)(n * dec->sample_rate);
1710 #if defined(DEBUG_SYNC)
1712 static double last_clock;
1713 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1714 is->audio_clock - last_clock,
1715 is->audio_clock, pts);
1716 last_clock = is->audio_clock;
1722 /* free the current packet */
1724 av_free_packet(pkt);
1726 if (is->paused || is->audioq.abort_request) {
1730 /* read next packet */
1731 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1733 if(pkt->data == flush_pkt.data){
1734 avcodec_flush_buffers(dec);
1738 pkt_temp->data = pkt->data;
1739 pkt_temp->size = pkt->size;
1741 /* if update the audio clock with the pts */
1742 if (pkt->pts != AV_NOPTS_VALUE) {
1743 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1748 /* get the current audio output buffer size, in samples. With SDL, we
1749 cannot have a precise information */
1750 static int audio_write_get_buf_size(VideoState *is)
1752 return is->audio_buf_size - is->audio_buf_index;
1756 /* prepare a new audio buffer */
1757 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1759 VideoState *is = opaque;
1760 int audio_size, len1;
1763 audio_callback_time = av_gettime();
1766 if (is->audio_buf_index >= is->audio_buf_size) {
1767 audio_size = audio_decode_frame(is, &pts);
1768 if (audio_size < 0) {
1769 /* if error, just output silence */
1770 is->audio_buf = is->audio_buf1;
1771 is->audio_buf_size = 1024;
1772 memset(is->audio_buf, 0, is->audio_buf_size);
1775 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1776 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1778 is->audio_buf_size = audio_size;
1780 is->audio_buf_index = 0;
1782 len1 = is->audio_buf_size - is->audio_buf_index;
1785 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1788 is->audio_buf_index += len1;
1792 /* open a given stream. Return 0 if OK */
1793 static int stream_component_open(VideoState *is, int stream_index)
1795 AVFormatContext *ic = is->ic;
1796 AVCodecContext *enc;
1798 SDL_AudioSpec wanted_spec, spec;
1800 if (stream_index < 0 || stream_index >= ic->nb_streams)
1802 enc = ic->streams[stream_index]->codec;
1804 /* prepare audio output */
1805 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1806 if (enc->channels > 0) {
1807 enc->request_channels = FFMIN(2, enc->channels);
1809 enc->request_channels = 2;
1813 codec = avcodec_find_decoder(enc->codec_id);
1814 enc->debug_mv = debug_mv;
1816 enc->workaround_bugs = workaround_bugs;
1817 enc->lowres = lowres;
1818 if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
1819 enc->idct_algo= idct;
1820 if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
1821 enc->skip_frame= skip_frame;
1822 enc->skip_idct= skip_idct;
1823 enc->skip_loop_filter= skip_loop_filter;
1824 enc->error_recognition= error_recognition;
1825 enc->error_concealment= error_concealment;
1826 avcodec_thread_init(enc, thread_count);
1828 set_context_opts(enc, avcodec_opts[enc->codec_type], 0);
1831 avcodec_open(enc, codec) < 0)
1834 /* prepare audio output */
1835 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1836 wanted_spec.freq = enc->sample_rate;
1837 wanted_spec.format = AUDIO_S16SYS;
1838 wanted_spec.channels = enc->channels;
1839 wanted_spec.silence = 0;
1840 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1841 wanted_spec.callback = sdl_audio_callback;
1842 wanted_spec.userdata = is;
1843 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1844 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1847 is->audio_hw_buf_size = spec.size;
1848 is->audio_src_fmt= SAMPLE_FMT_S16;
1851 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
1852 switch(enc->codec_type) {
1853 case CODEC_TYPE_AUDIO:
1854 is->audio_stream = stream_index;
1855 is->audio_st = ic->streams[stream_index];
1856 is->audio_buf_size = 0;
1857 is->audio_buf_index = 0;
1859 /* init averaging filter */
1860 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1861 is->audio_diff_avg_count = 0;
1862 /* since we do not have a precise anough audio fifo fullness,
1863 we correct audio sync only if larger than this threshold */
1864 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
1866 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1867 packet_queue_init(&is->audioq);
1870 case CODEC_TYPE_VIDEO:
1871 is->video_stream = stream_index;
1872 is->video_st = ic->streams[stream_index];
1874 // is->video_current_pts_time = av_gettime();
1876 packet_queue_init(&is->videoq);
1877 is->video_tid = SDL_CreateThread(video_thread, is);
1879 case CODEC_TYPE_SUBTITLE:
1880 is->subtitle_stream = stream_index;
1881 is->subtitle_st = ic->streams[stream_index];
1882 packet_queue_init(&is->subtitleq);
1884 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
1892 static void stream_component_close(VideoState *is, int stream_index)
1894 AVFormatContext *ic = is->ic;
1895 AVCodecContext *enc;
1897 if (stream_index < 0 || stream_index >= ic->nb_streams)
1899 enc = ic->streams[stream_index]->codec;
1901 switch(enc->codec_type) {
1902 case CODEC_TYPE_AUDIO:
1903 packet_queue_abort(&is->audioq);
1907 packet_queue_end(&is->audioq);
1908 if (is->reformat_ctx)
1909 av_audio_convert_free(is->reformat_ctx);
1911 case CODEC_TYPE_VIDEO:
1912 packet_queue_abort(&is->videoq);
1914 /* note: we also signal this mutex to make sure we deblock the
1915 video thread in all cases */
1916 SDL_LockMutex(is->pictq_mutex);
1917 SDL_CondSignal(is->pictq_cond);
1918 SDL_UnlockMutex(is->pictq_mutex);
1920 SDL_WaitThread(is->video_tid, NULL);
1922 packet_queue_end(&is->videoq);
1924 case CODEC_TYPE_SUBTITLE:
1925 packet_queue_abort(&is->subtitleq);
1927 /* note: we also signal this mutex to make sure we deblock the
1928 video thread in all cases */
1929 SDL_LockMutex(is->subpq_mutex);
1930 is->subtitle_stream_changed = 1;
1932 SDL_CondSignal(is->subpq_cond);
1933 SDL_UnlockMutex(is->subpq_mutex);
1935 SDL_WaitThread(is->subtitle_tid, NULL);
1937 packet_queue_end(&is->subtitleq);
1943 ic->streams[stream_index]->discard = AVDISCARD_ALL;
1945 switch(enc->codec_type) {
1946 case CODEC_TYPE_AUDIO:
1947 is->audio_st = NULL;
1948 is->audio_stream = -1;
1950 case CODEC_TYPE_VIDEO:
1951 is->video_st = NULL;
1952 is->video_stream = -1;
1954 case CODEC_TYPE_SUBTITLE:
1955 is->subtitle_st = NULL;
1956 is->subtitle_stream = -1;
1963 /* since we have only one decoding thread, we can use a global
1964 variable instead of a thread local variable */
1965 static VideoState *global_video_state;
1967 static int decode_interrupt_cb(void)
1969 return (global_video_state && global_video_state->abort_request);
1972 /* this thread gets the stream from the disk or the network */
1973 static int decode_thread(void *arg)
1975 VideoState *is = arg;
1976 AVFormatContext *ic;
1977 int err, i, ret, video_index, audio_index, subtitle_index;
1978 AVPacket pkt1, *pkt = &pkt1;
1979 AVFormatParameters params, *ap = ¶ms;
1982 ic = avformat_alloc_context();
1986 subtitle_index = -1;
1987 is->video_stream = -1;
1988 is->audio_stream = -1;
1989 is->subtitle_stream = -1;
1991 global_video_state = is;
1992 url_set_interrupt_cb(decode_interrupt_cb);
1994 memset(ap, 0, sizeof(*ap));
1996 ap->prealloced_context = 1;
1997 ap->width = frame_width;
1998 ap->height= frame_height;
1999 ap->time_base= (AVRational){1, 25};
2000 ap->pix_fmt = frame_pix_fmt;
2002 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2004 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2006 print_error(is->filename, err);
2013 ic->flags |= AVFMT_FLAG_GENPTS;
2015 err = av_find_stream_info(ic);
2017 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2022 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2025 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2027 /* if seeking requested, we execute it */
2028 if (start_time != AV_NOPTS_VALUE) {
2031 timestamp = start_time;
2032 /* add the stream start time */
2033 if (ic->start_time != AV_NOPTS_VALUE)
2034 timestamp += ic->start_time;
2035 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2037 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2038 is->filename, (double)timestamp / AV_TIME_BASE);
2042 for(i = 0; i < ic->nb_streams; i++) {
2043 AVCodecContext *enc = ic->streams[i]->codec;
2044 ic->streams[i]->discard = AVDISCARD_ALL;
2045 switch(enc->codec_type) {
2046 case CODEC_TYPE_AUDIO:
2047 if (wanted_audio_stream-- >= 0 && !audio_disable)
2050 case CODEC_TYPE_VIDEO:
2051 if (wanted_video_stream-- >= 0 && !video_disable)
2054 case CODEC_TYPE_SUBTITLE:
2055 if (wanted_subtitle_stream-- >= 0 && !video_disable)
2063 dump_format(ic, 0, is->filename, 0);
2066 /* open the streams */
2067 if (audio_index >= 0) {
2068 stream_component_open(is, audio_index);
2071 if (video_index >= 0) {
2072 stream_component_open(is, video_index);
2074 /* add the refresh timer to draw the picture */
2075 schedule_refresh(is, 40);
2077 if (!display_disable)
2081 if (subtitle_index >= 0) {
2082 stream_component_open(is, subtitle_index);
2085 if (is->video_stream < 0 && is->audio_stream < 0) {
2086 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2092 if (is->abort_request)
2094 if (is->paused != is->last_paused) {
2095 is->last_paused = is->paused;
2097 is->read_pause_return= av_read_pause(ic);
2101 #if CONFIG_RTSP_DEMUXER
2102 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2103 /* wait 10 ms to avoid trying to get another packet */
2110 int64_t seek_target= is->seek_pos;
2111 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2112 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2113 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2114 // of the seek_pos/seek_rel variables
2116 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2118 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2120 if (is->audio_stream >= 0) {
2121 packet_queue_flush(&is->audioq);
2122 packet_queue_put(&is->audioq, &flush_pkt);
2124 if (is->subtitle_stream >= 0) {
2125 packet_queue_flush(&is->subtitleq);
2126 packet_queue_put(&is->subtitleq, &flush_pkt);
2128 if (is->video_stream >= 0) {
2129 packet_queue_flush(&is->videoq);
2130 packet_queue_put(&is->videoq, &flush_pkt);
2137 /* if the queue are full, no need to read more */
2138 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2139 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2140 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2141 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2146 if(url_feof(ic->pb) || eof) {
2147 if(is->video_stream >= 0){
2148 av_init_packet(pkt);
2151 pkt->stream_index= is->video_stream;
2152 packet_queue_put(&is->videoq, pkt);
2155 if(autoexit && is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2161 ret = av_read_frame(ic, pkt);
2163 if (ret == AVERROR_EOF)
2165 if (url_ferror(ic->pb))
2167 SDL_Delay(100); /* wait for user event */
2170 if (pkt->stream_index == is->audio_stream) {
2171 packet_queue_put(&is->audioq, pkt);
2172 } else if (pkt->stream_index == is->video_stream) {
2173 packet_queue_put(&is->videoq, pkt);
2174 } else if (pkt->stream_index == is->subtitle_stream) {
2175 packet_queue_put(&is->subtitleq, pkt);
2177 av_free_packet(pkt);
2180 /* wait until the end */
2181 while (!is->abort_request) {
2187 /* disable interrupting */
2188 global_video_state = NULL;
2190 /* close each stream */
2191 if (is->audio_stream >= 0)
2192 stream_component_close(is, is->audio_stream);
2193 if (is->video_stream >= 0)
2194 stream_component_close(is, is->video_stream);
2195 if (is->subtitle_stream >= 0)
2196 stream_component_close(is, is->subtitle_stream);
2198 av_close_input_file(is->ic);
2199 is->ic = NULL; /* safety */
2201 url_set_interrupt_cb(NULL);
2206 event.type = FF_QUIT_EVENT;
2207 event.user.data1 = is;
2208 SDL_PushEvent(&event);
2213 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2217 is = av_mallocz(sizeof(VideoState));
2220 av_strlcpy(is->filename, filename, sizeof(is->filename));
2221 is->iformat = iformat;
2225 /* start video display */
2226 is->pictq_mutex = SDL_CreateMutex();
2227 is->pictq_cond = SDL_CreateCond();
2229 is->subpq_mutex = SDL_CreateMutex();
2230 is->subpq_cond = SDL_CreateCond();
2232 is->av_sync_type = av_sync_type;
2233 is->parse_tid = SDL_CreateThread(decode_thread, is);
2234 if (!is->parse_tid) {
2241 static void stream_close(VideoState *is)
2245 /* XXX: use a special url_shutdown call to abort parse cleanly */
2246 is->abort_request = 1;
2247 SDL_WaitThread(is->parse_tid, NULL);
2249 /* free all pictures */
2250 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2253 SDL_FreeYUVOverlay(vp->bmp);
2257 SDL_DestroyMutex(is->pictq_mutex);
2258 SDL_DestroyCond(is->pictq_cond);
2259 SDL_DestroyMutex(is->subpq_mutex);
2260 SDL_DestroyCond(is->subpq_cond);
2261 if (is->img_convert_ctx)
2262 sws_freeContext(is->img_convert_ctx);
2266 static void stream_cycle_channel(VideoState *is, int codec_type)
2268 AVFormatContext *ic = is->ic;
2269 int start_index, stream_index;
2272 if (codec_type == CODEC_TYPE_VIDEO)
2273 start_index = is->video_stream;
2274 else if (codec_type == CODEC_TYPE_AUDIO)
2275 start_index = is->audio_stream;
2277 start_index = is->subtitle_stream;
2278 if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0))
2280 stream_index = start_index;
2282 if (++stream_index >= is->ic->nb_streams)
2284 if (codec_type == CODEC_TYPE_SUBTITLE)
2291 if (stream_index == start_index)
2293 st = ic->streams[stream_index];
2294 if (st->codec->codec_type == codec_type) {
2295 /* check that parameters are OK */
2296 switch(codec_type) {
2297 case CODEC_TYPE_AUDIO:
2298 if (st->codec->sample_rate != 0 &&
2299 st->codec->channels != 0)
2302 case CODEC_TYPE_VIDEO:
2303 case CODEC_TYPE_SUBTITLE:
2311 stream_component_close(is, start_index);
2312 stream_component_open(is, stream_index);
2316 static void toggle_full_screen(void)
2318 is_full_screen = !is_full_screen;
2319 if (!fs_screen_width) {
2320 /* use default SDL method */
2321 // SDL_WM_ToggleFullScreen(screen);
2323 video_open(cur_stream);
2326 static void toggle_pause(void)
2329 stream_pause(cur_stream);
2333 static void step_to_next_frame(void)
2336 /* if the stream is paused unpause it, then step */
2337 if (cur_stream->paused)
2338 stream_pause(cur_stream);
2343 static void do_exit(void)
2347 stream_close(cur_stream);
2350 for (i = 0; i < CODEC_TYPE_NB; i++)
2351 av_free(avcodec_opts[i]);
2352 av_free(avformat_opts);
2360 static void toggle_audio_display(void)
2363 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2364 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2365 fill_rectangle(screen,
2366 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2368 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2372 /* handle an event sent by the GUI */
2373 static void event_loop(void)
2376 double incr, pos, frac;
2380 SDL_WaitEvent(&event);
2381 switch(event.type) {
2383 switch(event.key.keysym.sym) {
2389 toggle_full_screen();
2395 case SDLK_s: //S: Step to next frame
2396 step_to_next_frame();
2400 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
2404 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
2408 stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE);
2411 toggle_audio_display();
2426 if (seek_by_bytes) {
2427 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2428 pos= cur_stream->video_current_pos;
2429 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2430 pos= cur_stream->audio_pkt.pos;
2432 pos = url_ftell(cur_stream->ic->pb);
2433 if (cur_stream->ic->bit_rate)
2434 incr *= cur_stream->ic->bit_rate / 8.0;
2438 stream_seek(cur_stream, pos, incr, 1);
2440 pos = get_master_clock(cur_stream);
2442 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2450 case SDL_MOUSEBUTTONDOWN:
2451 case SDL_MOUSEMOTION:
2452 if(event.type ==SDL_MOUSEBUTTONDOWN){
2455 if(event.motion.state != SDL_PRESSED)
2460 if(seek_by_bytes || cur_stream->ic->duration<=0){
2461 uint64_t size= url_fsize(cur_stream->ic->pb);
2462 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2466 int tns, thh, tmm, tss;
2467 tns = cur_stream->ic->duration/1000000LL;
2469 tmm = (tns%3600)/60;
2471 frac = x/cur_stream->width;
2476 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2477 hh, mm, ss, thh, tmm, tss);
2478 ts = frac*cur_stream->ic->duration;
2479 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2480 ts += cur_stream->ic->start_time;
2481 stream_seek(cur_stream, ts, 0, 0);
2485 case SDL_VIDEORESIZE:
2487 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2488 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2489 screen_width = cur_stream->width = event.resize.w;
2490 screen_height= cur_stream->height= event.resize.h;
2497 case FF_ALLOC_EVENT:
2498 video_open(event.user.data1);
2499 alloc_picture(event.user.data1);
2501 case FF_REFRESH_EVENT:
2502 video_refresh_timer(event.user.data1);
2510 static void opt_frame_size(const char *arg)
2512 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2513 fprintf(stderr, "Incorrect frame size\n");
2516 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2517 fprintf(stderr, "Frame size must be a multiple of 2\n");
2522 static int opt_width(const char *opt, const char *arg)
2524 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2528 static int opt_height(const char *opt, const char *arg)
2530 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2534 static void opt_format(const char *arg)
2536 file_iformat = av_find_input_format(arg);
2537 if (!file_iformat) {
2538 fprintf(stderr, "Unknown input format: %s\n", arg);
2543 static void opt_frame_pix_fmt(const char *arg)
2545 frame_pix_fmt = av_get_pix_fmt(arg);
2548 static int opt_sync(const char *opt, const char *arg)
2550 if (!strcmp(arg, "audio"))
2551 av_sync_type = AV_SYNC_AUDIO_MASTER;
2552 else if (!strcmp(arg, "video"))
2553 av_sync_type = AV_SYNC_VIDEO_MASTER;
2554 else if (!strcmp(arg, "ext"))
2555 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2557 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2563 static int opt_seek(const char *opt, const char *arg)
2565 start_time = parse_time_or_die(opt, arg, 1);
2569 static int opt_debug(const char *opt, const char *arg)
2571 av_log_set_level(99);
2572 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2576 static int opt_vismv(const char *opt, const char *arg)
2578 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2582 static int opt_thread_count(const char *opt, const char *arg)
2584 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2586 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2591 static const OptionDef options[] = {
2592 #include "cmdutils_common_opts.h"
2593 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
2594 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
2595 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2596 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2597 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2598 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2599 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_audio_stream}, "select desired audio stream", "stream_number" },
2600 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_video_stream}, "select desired video stream", "stream_number" },
2601 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_subtitle_stream}, "select desired subtitle stream", "stream_number" },
2602 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2603 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
2604 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2605 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2606 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2607 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2608 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2609 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2610 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2611 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2612 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2613 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2614 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2615 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2616 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2617 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2618 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2619 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
2620 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2621 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2622 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2623 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
2624 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
2628 static void show_usage(void)
2630 printf("Simple media player\n");
2631 printf("usage: ffplay [options] input_file\n");
2635 static void show_help(void)
2638 show_help_options(options, "Main options:\n",
2640 show_help_options(options, "\nAdvanced options:\n",
2641 OPT_EXPERT, OPT_EXPERT);
2642 printf("\nWhile playing:\n"
2644 "f toggle full screen\n"
2646 "a cycle audio channel\n"
2647 "v cycle video channel\n"
2648 "t cycle subtitle channel\n"
2649 "w show audio waves\n"
2650 "left/right seek backward/forward 10 seconds\n"
2651 "down/up seek backward/forward 1 minute\n"
2652 "mouse click seek to percentage in file corresponding to fraction of width\n"
2656 static void opt_input_file(const char *filename)
2658 if (!strcmp(filename, "-"))
2660 input_filename = filename;
2663 /* Called from the main */
2664 int main(int argc, char **argv)
2668 /* register all codecs, demux and protocols */
2669 avcodec_register_all();
2670 avdevice_register_all();
2673 for(i=0; i<CODEC_TYPE_NB; i++){
2674 avcodec_opts[i]= avcodec_alloc_context2(i);
2676 avformat_opts = avformat_alloc_context();
2677 sws_opts = sws_getContext(16,16,0, 16,16,0, sws_flags, NULL,NULL,NULL);
2681 parse_options(argc, argv, options, opt_input_file);
2683 if (!input_filename) {
2685 fprintf(stderr, "An input file must be specified\n");
2686 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
2690 if (display_disable) {
2693 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
2694 #if !defined(__MINGW32__) && !defined(__APPLE__)
2695 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
2697 if (SDL_Init (flags)) {
2698 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
2702 if (!display_disable) {
2703 #if HAVE_SDL_VIDEO_SIZE
2704 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2705 fs_screen_width = vi->current_w;
2706 fs_screen_height = vi->current_h;
2710 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
2711 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
2712 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
2714 av_init_packet(&flush_pkt);
2715 flush_pkt.data= "FLUSH";
2717 cur_stream = stream_open(input_filename, file_iformat);