2 * Copyright (c) 2003 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * simple media player based on the FFmpeg libraries
31 #include "libavutil/avstring.h"
32 #include "libavutil/colorspace.h"
33 #include "libavutil/mathematics.h"
34 #include "libavutil/pixdesc.h"
35 #include "libavutil/imgutils.h"
36 #include "libavutil/dict.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/avassert.h"
40 #include "libavformat/avformat.h"
41 #include "libavdevice/avdevice.h"
42 #include "libswscale/swscale.h"
43 #include "libavcodec/audioconvert.h"
44 #include "libavutil/opt.h"
45 #include "libavcodec/avfft.h"
46 #include "libswresample/swresample.h"
49 # include "libavfilter/avcodec.h"
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/buffersink.h"
56 #include <SDL_thread.h>
63 const char program_name[] = "ffplay";
64 const int program_birth_year = 2003;
66 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
67 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
70 /* SDL audio buffer size, in samples. Should be small to have precise
71 A/V sync as SDL does not have hardware buffer fullness info. */
72 #define SDL_AUDIO_BUFFER_SIZE 1024
74 /* no AV sync correction is done if below the AV sync threshold */
75 #define AV_SYNC_THRESHOLD 0.01
76 /* no AV correction is done if too big error */
77 #define AV_NOSYNC_THRESHOLD 10.0
79 /* maximum audio speed change to get correct sync */
80 #define SAMPLE_CORRECTION_PERCENT_MAX 10
82 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
83 #define AUDIO_DIFF_AVG_NB 20
85 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
86 #define SAMPLE_ARRAY_SIZE (2 * 65536)
88 static int sws_flags = SWS_BICUBIC;
90 typedef struct PacketQueue {
91 AVPacketList *first_pkt, *last_pkt;
99 #define VIDEO_PICTURE_QUEUE_SIZE 2
100 #define SUBPICTURE_QUEUE_SIZE 4
102 typedef struct VideoPicture {
103 double pts; ///< presentation time stamp for this picture
104 double duration; ///< expected duration of the frame
105 int64_t pos; ///< byte position in file
108 int width, height; /* source height & width */
111 enum PixelFormat pix_fmt;
114 AVFilterBufferRef *picref;
118 typedef struct SubPicture {
119 double pts; /* presentation time stamp for this picture */
124 AV_SYNC_AUDIO_MASTER, /* default choice */
125 AV_SYNC_VIDEO_MASTER,
126 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
129 typedef struct VideoState {
130 SDL_Thread *read_tid;
131 SDL_Thread *video_tid;
132 SDL_Thread *refresh_tid;
133 AVInputFormat *iformat;
142 int read_pause_return;
148 double external_clock; /* external clock base */
149 int64_t external_clock_time;
152 double audio_diff_cum; /* used for AV difference average computation */
153 double audio_diff_avg_coef;
154 double audio_diff_threshold;
155 int audio_diff_avg_count;
158 int audio_hw_buf_size;
159 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[AVCODEC_MAX_AUDIO_FRAME_SIZE * 4];
160 uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
163 unsigned int audio_buf_size; /* in bytes */
164 int audio_buf_index; /* in bytes */
165 int audio_write_buf_size;
166 AVPacket audio_pkt_temp;
168 enum AVSampleFormat audio_src_fmt;
169 enum AVSampleFormat audio_tgt_fmt;
170 int audio_src_channels;
171 int audio_tgt_channels;
172 int64_t audio_src_channel_layout;
173 int64_t audio_tgt_channel_layout;
176 struct SwrContext *swr_ctx;
177 double audio_current_pts;
178 double audio_current_pts_drift;
179 int frame_drops_early;
180 int frame_drops_late;
184 SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
186 int16_t sample_array[SAMPLE_ARRAY_SIZE];
187 int sample_array_index;
191 FFTSample *rdft_data;
194 SDL_Thread *subtitle_tid;
196 int subtitle_stream_changed;
197 AVStream *subtitle_st;
198 PacketQueue subtitleq;
199 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
200 int subpq_size, subpq_rindex, subpq_windex;
201 SDL_mutex *subpq_mutex;
202 SDL_cond *subpq_cond;
205 double frame_last_pts;
206 double frame_last_duration;
207 double frame_last_dropped_pts;
208 double frame_last_returned_time;
209 double frame_last_filter_delay;
210 int64_t frame_last_dropped_pos;
211 double video_clock; ///< pts of last decoded frame / predicted pts of next decoded frame
215 double video_current_pts; ///< current displayed pts (different from video_clock if frame fifos are used)
216 double video_current_pts_drift; ///< video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
217 int64_t video_current_pos; ///< current displayed file pos
218 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
219 int pictq_size, pictq_rindex, pictq_windex;
220 SDL_mutex *pictq_mutex;
221 SDL_cond *pictq_cond;
223 struct SwsContext *img_convert_ctx;
227 int width, height, xleft, ytop;
231 AVFilterContext *out_video_filter; ///< the last filter in the video chain
237 static int opt_help(const char *opt, const char *arg);
239 /* options specified by the user */
240 static AVInputFormat *file_iformat;
241 static const char *input_filename;
242 static const char *window_title;
243 static int fs_screen_width;
244 static int fs_screen_height;
245 static int screen_width = 0;
246 static int screen_height = 0;
247 static int audio_disable;
248 static int video_disable;
249 static int wanted_stream[AVMEDIA_TYPE_NB] = {
250 [AVMEDIA_TYPE_AUDIO] = -1,
251 [AVMEDIA_TYPE_VIDEO] = -1,
252 [AVMEDIA_TYPE_SUBTITLE] = -1,
254 static int seek_by_bytes = -1;
255 static int display_disable;
256 static int show_status = 1;
257 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
258 static int64_t start_time = AV_NOPTS_VALUE;
259 static int64_t duration = AV_NOPTS_VALUE;
260 static int workaround_bugs = 1;
262 static int genpts = 0;
263 static int lowres = 0;
264 static int idct = FF_IDCT_AUTO;
265 static enum AVDiscard skip_frame = AVDISCARD_DEFAULT;
266 static enum AVDiscard skip_idct = AVDISCARD_DEFAULT;
267 static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT;
268 static int error_recognition = FF_ER_CAREFUL;
269 static int error_concealment = 3;
270 static int decoder_reorder_pts = -1;
272 static int exit_on_keydown;
273 static int exit_on_mousedown;
275 static int framedrop = -1;
276 static enum ShowMode show_mode = SHOW_MODE_NONE;
277 static const char *audio_codec_name;
278 static const char *subtitle_codec_name;
279 static const char *video_codec_name;
280 static int rdftspeed = 20;
282 static char *vfilters = NULL;
285 /* current context */
286 static int is_full_screen;
287 static int64_t audio_callback_time;
289 static AVPacket flush_pkt;
291 #define FF_ALLOC_EVENT (SDL_USEREVENT)
292 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
293 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
295 static SDL_Surface *screen;
297 void av_noreturn exit_program(int ret)
302 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
306 /* duplicate the packet */
307 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
310 pkt1 = av_malloc(sizeof(AVPacketList));
317 SDL_LockMutex(q->mutex);
323 q->last_pkt->next = pkt1;
326 q->size += pkt1->pkt.size + sizeof(*pkt1);
327 /* XXX: should duplicate packet data in DV case */
328 SDL_CondSignal(q->cond);
330 SDL_UnlockMutex(q->mutex);
334 /* packet queue handling */
335 static void packet_queue_init(PacketQueue *q)
337 memset(q, 0, sizeof(PacketQueue));
338 q->mutex = SDL_CreateMutex();
339 q->cond = SDL_CreateCond();
340 packet_queue_put(q, &flush_pkt);
343 static void packet_queue_flush(PacketQueue *q)
345 AVPacketList *pkt, *pkt1;
347 SDL_LockMutex(q->mutex);
348 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
350 av_free_packet(&pkt->pkt);
357 SDL_UnlockMutex(q->mutex);
360 static void packet_queue_end(PacketQueue *q)
362 packet_queue_flush(q);
363 SDL_DestroyMutex(q->mutex);
364 SDL_DestroyCond(q->cond);
367 static void packet_queue_abort(PacketQueue *q)
369 SDL_LockMutex(q->mutex);
371 q->abort_request = 1;
373 SDL_CondSignal(q->cond);
375 SDL_UnlockMutex(q->mutex);
378 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
379 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
384 SDL_LockMutex(q->mutex);
387 if (q->abort_request) {
394 q->first_pkt = pkt1->next;
398 q->size -= pkt1->pkt.size + sizeof(*pkt1);
407 SDL_CondWait(q->cond, q->mutex);
410 SDL_UnlockMutex(q->mutex);
414 static inline void fill_rectangle(SDL_Surface *screen,
415 int x, int y, int w, int h, int color)
422 SDL_FillRect(screen, &rect, color);
425 #define ALPHA_BLEND(a, oldp, newp, s)\
426 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
428 #define RGBA_IN(r, g, b, a, s)\
430 unsigned int v = ((const uint32_t *)(s))[0];\
431 a = (v >> 24) & 0xff;\
432 r = (v >> 16) & 0xff;\
433 g = (v >> 8) & 0xff;\
437 #define YUVA_IN(y, u, v, a, s, pal)\
439 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
440 a = (val >> 24) & 0xff;\
441 y = (val >> 16) & 0xff;\
442 u = (val >> 8) & 0xff;\
446 #define YUVA_OUT(d, y, u, v, a)\
448 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
454 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
456 int wrap, wrap3, width2, skip2;
457 int y, u, v, a, u1, v1, a1, w, h;
458 uint8_t *lum, *cb, *cr;
461 int dstx, dsty, dstw, dsth;
463 dstw = av_clip(rect->w, 0, imgw);
464 dsth = av_clip(rect->h, 0, imgh);
465 dstx = av_clip(rect->x, 0, imgw - dstw);
466 dsty = av_clip(rect->y, 0, imgh - dsth);
467 lum = dst->data[0] + dsty * dst->linesize[0];
468 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
469 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
471 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
473 wrap = dst->linesize[0];
474 wrap3 = rect->pict.linesize[0];
475 p = rect->pict.data[0];
476 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
484 YUVA_IN(y, u, v, a, p, pal);
485 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
486 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
487 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
493 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
494 YUVA_IN(y, u, v, a, p, pal);
498 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
500 YUVA_IN(y, u, v, a, p + BPP, pal);
504 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
505 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
506 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
513 YUVA_IN(y, u, v, a, p, pal);
514 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
515 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
516 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
520 p += wrap3 - dstw * BPP;
521 lum += wrap - dstw - dstx;
522 cb += dst->linesize[1] - width2 - skip2;
523 cr += dst->linesize[2] - width2 - skip2;
525 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
531 YUVA_IN(y, u, v, a, p, pal);
535 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
538 YUVA_IN(y, u, v, a, p, pal);
542 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
543 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
544 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
550 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
551 YUVA_IN(y, u, v, a, p, pal);
555 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
557 YUVA_IN(y, u, v, a, p + BPP, pal);
561 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
565 YUVA_IN(y, u, v, a, p, pal);
569 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
571 YUVA_IN(y, u, v, a, p + BPP, pal);
575 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
577 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
578 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
582 p += -wrap3 + 2 * BPP;
586 YUVA_IN(y, u, v, a, p, pal);
590 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
593 YUVA_IN(y, u, v, a, p, pal);
597 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
598 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
599 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
605 p += wrap3 + (wrap3 - dstw * BPP);
606 lum += wrap + (wrap - dstw - dstx);
607 cb += dst->linesize[1] - width2 - skip2;
608 cr += dst->linesize[2] - width2 - skip2;
610 /* handle odd height */
617 YUVA_IN(y, u, v, a, p, pal);
618 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
619 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
620 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
626 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
627 YUVA_IN(y, u, v, a, p, pal);
631 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
633 YUVA_IN(y, u, v, a, p + BPP, pal);
637 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
638 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
639 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
646 YUVA_IN(y, u, v, a, p, pal);
647 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
648 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
649 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
654 static void free_subpicture(SubPicture *sp)
656 avsubtitle_free(&sp->sub);
659 static void video_image_display(VideoState *is)
665 int width, height, x, y;
669 vp = &is->pictq[is->pictq_rindex];
672 if (vp->picref->video->sample_aspect_ratio.num == 0)
675 aspect_ratio = av_q2d(vp->picref->video->sample_aspect_ratio);
678 /* XXX: use variable in the frame */
679 if (is->video_st->sample_aspect_ratio.num)
680 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
681 else if (is->video_st->codec->sample_aspect_ratio.num)
682 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
686 if (aspect_ratio <= 0.0)
688 aspect_ratio *= (float)vp->width / (float)vp->height;
690 if (is->subtitle_st) {
691 if (is->subpq_size > 0) {
692 sp = &is->subpq[is->subpq_rindex];
694 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
695 SDL_LockYUVOverlay (vp->bmp);
697 pict.data[0] = vp->bmp->pixels[0];
698 pict.data[1] = vp->bmp->pixels[2];
699 pict.data[2] = vp->bmp->pixels[1];
701 pict.linesize[0] = vp->bmp->pitches[0];
702 pict.linesize[1] = vp->bmp->pitches[2];
703 pict.linesize[2] = vp->bmp->pitches[1];
705 for (i = 0; i < sp->sub.num_rects; i++)
706 blend_subrect(&pict, sp->sub.rects[i],
707 vp->bmp->w, vp->bmp->h);
709 SDL_UnlockYUVOverlay (vp->bmp);
715 /* XXX: we suppose the screen has a 1.0 pixel ratio */
717 width = ((int)rint(height * aspect_ratio)) & ~1;
718 if (width > is->width) {
720 height = ((int)rint(width / aspect_ratio)) & ~1;
722 x = (is->width - width) / 2;
723 y = (is->height - height) / 2;
724 is->no_background = 0;
725 rect.x = is->xleft + x;
726 rect.y = is->ytop + y;
727 rect.w = FFMAX(width, 1);
728 rect.h = FFMAX(height, 1);
729 SDL_DisplayYUVOverlay(vp->bmp, &rect);
733 static inline int compute_mod(int a, int b)
735 return a < 0 ? a%b + b : a%b;
738 static void video_audio_display(VideoState *s)
740 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
741 int ch, channels, h, h2, bgcolor, fgcolor;
743 int rdft_bits, nb_freq;
745 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
747 nb_freq = 1 << (rdft_bits - 1);
749 /* compute display index : center on currently output samples */
750 channels = s->audio_tgt_channels;
751 nb_display_channels = channels;
753 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
755 delay = s->audio_write_buf_size;
758 /* to be more precise, we take into account the time spent since
759 the last buffer computation */
760 if (audio_callback_time) {
761 time_diff = av_gettime() - audio_callback_time;
762 delay -= (time_diff * s->audio_tgt_freq) / 1000000;
765 delay += 2 * data_used;
766 if (delay < data_used)
769 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
770 if (s->show_mode == SHOW_MODE_WAVES) {
772 for (i = 0; i < 1000; i += channels) {
773 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
774 int a = s->sample_array[idx];
775 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
776 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
777 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
779 if (h < score && (b ^ c) < 0) {
786 s->last_i_start = i_start;
788 i_start = s->last_i_start;
791 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
792 if (s->show_mode == SHOW_MODE_WAVES) {
793 fill_rectangle(screen,
794 s->xleft, s->ytop, s->width, s->height,
797 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
799 /* total height for one channel */
800 h = s->height / nb_display_channels;
801 /* graph height / 2 */
803 for (ch = 0; ch < nb_display_channels; ch++) {
805 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
806 for (x = 0; x < s->width; x++) {
807 y = (s->sample_array[i] * h2) >> 15;
814 fill_rectangle(screen,
815 s->xleft + x, ys, 1, y,
818 if (i >= SAMPLE_ARRAY_SIZE)
819 i -= SAMPLE_ARRAY_SIZE;
823 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
825 for (ch = 1; ch < nb_display_channels; ch++) {
826 y = s->ytop + ch * h;
827 fill_rectangle(screen,
828 s->xleft, y, s->width, 1,
831 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
833 nb_display_channels= FFMIN(nb_display_channels, 2);
834 if (rdft_bits != s->rdft_bits) {
835 av_rdft_end(s->rdft);
836 av_free(s->rdft_data);
837 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
838 s->rdft_bits = rdft_bits;
839 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
843 for (ch = 0; ch < nb_display_channels; ch++) {
844 data[ch] = s->rdft_data + 2 * nb_freq * ch;
846 for (x = 0; x < 2 * nb_freq; x++) {
847 double w = (x-nb_freq) * (1.0 / nb_freq);
848 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
850 if (i >= SAMPLE_ARRAY_SIZE)
851 i -= SAMPLE_ARRAY_SIZE;
853 av_rdft_calc(s->rdft, data[ch]);
855 // least efficient way to do this, we should of course directly access it but its more than fast enough
856 for (y = 0; y < s->height; y++) {
857 double w = 1 / sqrt(nb_freq);
858 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]));
859 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
860 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
863 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
865 fill_rectangle(screen,
866 s->xpos, s->height-y, 1, 1,
870 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
872 if (s->xpos >= s->width)
877 static void stream_close(VideoState *is)
881 /* XXX: use a special url_shutdown call to abort parse cleanly */
882 is->abort_request = 1;
883 SDL_WaitThread(is->read_tid, NULL);
884 SDL_WaitThread(is->refresh_tid, NULL);
886 /* free all pictures */
887 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
891 avfilter_unref_buffer(vp->picref);
896 SDL_FreeYUVOverlay(vp->bmp);
900 SDL_DestroyMutex(is->pictq_mutex);
901 SDL_DestroyCond(is->pictq_cond);
902 SDL_DestroyMutex(is->subpq_mutex);
903 SDL_DestroyCond(is->subpq_cond);
905 if (is->img_convert_ctx)
906 sws_freeContext(is->img_convert_ctx);
911 static void do_exit(VideoState *is)
916 av_lockmgr_register(NULL);
921 avformat_network_deinit();
925 av_log(NULL, AV_LOG_QUIET, "%s", "");
929 static void sigterm_handler(int sig)
934 static int video_open(VideoState *is, int force_set_video_mode)
936 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
939 if (is_full_screen) flags |= SDL_FULLSCREEN;
940 else flags |= SDL_RESIZABLE;
942 if (is_full_screen && fs_screen_width) {
944 h = fs_screen_height;
945 } else if (!is_full_screen && screen_width) {
949 } else if (is->out_video_filter && is->out_video_filter->inputs[0]) {
950 w = is->out_video_filter->inputs[0]->w;
951 h = is->out_video_filter->inputs[0]->h;
953 } else if (is->video_st && is->video_st->codec->width) {
954 w = is->video_st->codec->width;
955 h = is->video_st->codec->height;
961 if (screen && is->width == screen->w && screen->w == w
962 && is->height== screen->h && screen->h == h && !force_set_video_mode)
964 screen = SDL_SetVideoMode(w, h, 0, flags);
966 fprintf(stderr, "SDL: could not set video mode - exiting\n");
970 window_title = input_filename;
971 SDL_WM_SetCaption(window_title, window_title);
973 is->width = screen->w;
974 is->height = screen->h;
979 /* display the current picture, if any */
980 static void video_display(VideoState *is)
984 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
985 video_audio_display(is);
986 else if (is->video_st)
987 video_image_display(is);
990 static int refresh_thread(void *opaque)
992 VideoState *is= opaque;
993 while (!is->abort_request) {
995 event.type = FF_REFRESH_EVENT;
996 event.user.data1 = opaque;
999 SDL_PushEvent(&event);
1001 //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
1002 usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
1007 /* get the current audio clock value */
1008 static double get_audio_clock(VideoState *is)
1011 return is->audio_current_pts;
1013 return is->audio_current_pts_drift + av_gettime() / 1000000.0;
1017 /* get the current video clock value */
1018 static double get_video_clock(VideoState *is)
1021 return is->video_current_pts;
1023 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1027 /* get the current external clock value */
1028 static double get_external_clock(VideoState *is)
1032 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1035 /* get the current master clock value */
1036 static double get_master_clock(VideoState *is)
1040 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1042 val = get_video_clock(is);
1044 val = get_audio_clock(is);
1045 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1047 val = get_audio_clock(is);
1049 val = get_video_clock(is);
1051 val = get_external_clock(is);
1056 /* seek in the stream */
1057 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1059 if (!is->seek_req) {
1062 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1064 is->seek_flags |= AVSEEK_FLAG_BYTE;
1069 /* pause or resume the video */
1070 static void stream_toggle_pause(VideoState *is)
1073 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1074 if (is->read_pause_return != AVERROR(ENOSYS)) {
1075 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1077 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1079 is->paused = !is->paused;
1082 static double compute_target_delay(double delay, VideoState *is)
1084 double sync_threshold, diff;
1086 /* update delay to follow master synchronisation source */
1087 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1088 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1089 /* if video is slave, we try to correct big delays by
1090 duplicating or deleting a frame */
1091 diff = get_video_clock(is) - get_master_clock(is);
1093 /* skip or repeat frame. We take into account the
1094 delay to compute the threshold. I still don't know
1095 if it is the best guess */
1096 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1097 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1098 if (diff <= -sync_threshold)
1100 else if (diff >= sync_threshold)
1105 av_dlog(NULL, "video: delay=%0.3f A-V=%f\n",
1111 static void pictq_next_picture(VideoState *is) {
1112 /* update queue size and signal for next picture */
1113 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1114 is->pictq_rindex = 0;
1116 SDL_LockMutex(is->pictq_mutex);
1118 SDL_CondSignal(is->pictq_cond);
1119 SDL_UnlockMutex(is->pictq_mutex);
1122 static void update_video_pts(VideoState *is, double pts, int64_t pos) {
1123 double time = av_gettime() / 1000000.0;
1124 /* update current video pts */
1125 is->video_current_pts = pts;
1126 is->video_current_pts_drift = is->video_current_pts - time;
1127 is->video_current_pos = pos;
1128 is->frame_last_pts = pts;
1131 /* called to display each frame */
1132 static void video_refresh(void *opaque)
1134 VideoState *is = opaque;
1138 SubPicture *sp, *sp2;
1142 if (is->pictq_size == 0) {
1143 SDL_LockMutex(is->pictq_mutex);
1144 if (is->frame_last_dropped_pts != AV_NOPTS_VALUE && is->frame_last_dropped_pts > is->frame_last_pts) {
1145 update_video_pts(is, is->frame_last_dropped_pts, is->frame_last_dropped_pos);
1146 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1148 SDL_UnlockMutex(is->pictq_mutex);
1149 // nothing to do, no picture to display in the que
1151 double last_duration, duration, delay;
1152 /* dequeue the picture */
1153 vp = &is->pictq[is->pictq_rindex];
1156 pictq_next_picture(is);
1160 /* compute nominal last_duration */
1161 last_duration = vp->pts - is->frame_last_pts;
1162 if (last_duration > 0 && last_duration < 10.0) {
1163 /* if duration of the last frame was sane, update last_duration in video state */
1164 is->frame_last_duration = last_duration;
1166 delay = compute_target_delay(is->frame_last_duration, is);
1168 time= av_gettime()/1000000.0;
1169 if (time < is->frame_timer + delay)
1173 is->frame_timer += delay * FFMAX(1, floor((time-is->frame_timer) / delay));
1175 SDL_LockMutex(is->pictq_mutex);
1176 update_video_pts(is, vp->pts, vp->pos);
1177 SDL_UnlockMutex(is->pictq_mutex);
1179 if (is->pictq_size > 1) {
1180 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1181 duration = nextvp->pts - vp->pts; // More accurate this way, 1/time_base is often not reflecting FPS
1183 duration = vp->duration;
1186 if((framedrop>0 || (framedrop && is->audio_st)) && time > is->frame_timer + duration){
1187 if(is->pictq_size > 1){
1188 is->frame_drops_late++;
1189 pictq_next_picture(is);
1194 if (is->subtitle_st) {
1195 if (is->subtitle_stream_changed) {
1196 SDL_LockMutex(is->subpq_mutex);
1198 while (is->subpq_size) {
1199 free_subpicture(&is->subpq[is->subpq_rindex]);
1201 /* update queue size and signal for next picture */
1202 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1203 is->subpq_rindex = 0;
1207 is->subtitle_stream_changed = 0;
1209 SDL_CondSignal(is->subpq_cond);
1210 SDL_UnlockMutex(is->subpq_mutex);
1212 if (is->subpq_size > 0) {
1213 sp = &is->subpq[is->subpq_rindex];
1215 if (is->subpq_size > 1)
1216 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1220 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1221 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1223 free_subpicture(sp);
1225 /* update queue size and signal for next picture */
1226 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1227 is->subpq_rindex = 0;
1229 SDL_LockMutex(is->subpq_mutex);
1231 SDL_CondSignal(is->subpq_cond);
1232 SDL_UnlockMutex(is->subpq_mutex);
1238 /* display picture */
1239 if (!display_disable)
1242 pictq_next_picture(is);
1244 } else if (is->audio_st) {
1245 /* draw the next audio frame */
1247 /* if only audio stream, then display the audio bars (better
1248 than nothing, just to test the implementation */
1250 /* display picture */
1251 if (!display_disable)
1255 static int64_t last_time;
1257 int aqsize, vqsize, sqsize;
1260 cur_time = av_gettime();
1261 if (!last_time || (cur_time - last_time) >= 30000) {
1266 aqsize = is->audioq.size;
1268 vqsize = is->videoq.size;
1269 if (is->subtitle_st)
1270 sqsize = is->subtitleq.size;
1272 if (is->audio_st && is->video_st)
1273 av_diff = get_audio_clock(is) - get_video_clock(is);
1274 printf("%7.2f A-V:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1275 get_master_clock(is),
1277 is->frame_drops_early + is->frame_drops_late,
1281 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1282 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1284 last_time = cur_time;
1289 /* allocate a picture (needs to do that in main thread to avoid
1290 potential locking problems */
1291 static void alloc_picture(void *opaque)
1293 VideoState *is = opaque;
1296 vp = &is->pictq[is->pictq_windex];
1299 SDL_FreeYUVOverlay(vp->bmp);
1303 avfilter_unref_buffer(vp->picref);
1306 vp->width = is->out_video_filter->inputs[0]->w;
1307 vp->height = is->out_video_filter->inputs[0]->h;
1308 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1310 vp->width = is->video_st->codec->width;
1311 vp->height = is->video_st->codec->height;
1312 vp->pix_fmt = is->video_st->codec->pix_fmt;
1315 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1318 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1319 /* SDL allocates a buffer smaller than requested if the video
1320 * overlay hardware is unable to support the requested size. */
1321 fprintf(stderr, "Error: the video system does not support an image\n"
1322 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1323 "to reduce the image size.\n", vp->width, vp->height );
1327 SDL_LockMutex(is->pictq_mutex);
1329 SDL_CondSignal(is->pictq_cond);
1330 SDL_UnlockMutex(is->pictq_mutex);
1333 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1336 double frame_delay, pts = pts1;
1338 /* compute the exact PTS for the picture if it is omitted in the stream
1339 * pts1 is the dts of the pkt / pts of the frame */
1341 /* update video clock with pts, if present */
1342 is->video_clock = pts;
1344 pts = is->video_clock;
1346 /* update video clock for next frame */
1347 frame_delay = av_q2d(is->video_st->codec->time_base);
1348 /* for MPEG2, the frame can be repeated, so we update the
1349 clock accordingly */
1350 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1351 is->video_clock += frame_delay;
1353 #if defined(DEBUG_SYNC) && 0
1354 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1355 av_get_picture_type_char(src_frame->pict_type), pts, pts1);
1358 /* wait until we have space to put a new picture */
1359 SDL_LockMutex(is->pictq_mutex);
1361 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1362 !is->videoq.abort_request) {
1363 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1365 SDL_UnlockMutex(is->pictq_mutex);
1367 if (is->videoq.abort_request)
1370 vp = &is->pictq[is->pictq_windex];
1372 vp->duration = frame_delay;
1374 /* alloc or resize hardware picture buffer */
1375 if (!vp->bmp || vp->reallocate ||
1377 vp->width != is->out_video_filter->inputs[0]->w ||
1378 vp->height != is->out_video_filter->inputs[0]->h) {
1380 vp->width != is->video_st->codec->width ||
1381 vp->height != is->video_st->codec->height) {
1388 /* the allocation must be done in the main thread to avoid
1390 event.type = FF_ALLOC_EVENT;
1391 event.user.data1 = is;
1392 SDL_PushEvent(&event);
1394 /* wait until the picture is allocated */
1395 SDL_LockMutex(is->pictq_mutex);
1396 while (!vp->allocated && !is->videoq.abort_request) {
1397 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1399 /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */
1400 if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) {
1401 while (!vp->allocated) {
1402 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1405 SDL_UnlockMutex(is->pictq_mutex);
1407 if (is->videoq.abort_request)
1411 /* if the frame is not skipped, then display it */
1416 avfilter_unref_buffer(vp->picref);
1417 vp->picref = src_frame->opaque;
1420 /* get a pointer on the bitmap */
1421 SDL_LockYUVOverlay (vp->bmp);
1423 memset(&pict, 0, sizeof(AVPicture));
1424 pict.data[0] = vp->bmp->pixels[0];
1425 pict.data[1] = vp->bmp->pixels[2];
1426 pict.data[2] = vp->bmp->pixels[1];
1428 pict.linesize[0] = vp->bmp->pitches[0];
1429 pict.linesize[1] = vp->bmp->pitches[2];
1430 pict.linesize[2] = vp->bmp->pitches[1];
1433 // FIXME use direct rendering
1434 av_picture_copy(&pict, (AVPicture *)src_frame,
1435 vp->pix_fmt, vp->width, vp->height);
1437 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1438 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1439 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1440 PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1441 if (is->img_convert_ctx == NULL) {
1442 fprintf(stderr, "Cannot initialize the conversion context\n");
1445 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1446 0, vp->height, pict.data, pict.linesize);
1448 /* update the bitmap content */
1449 SDL_UnlockYUVOverlay(vp->bmp);
1455 /* now we can update the picture count */
1456 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1457 is->pictq_windex = 0;
1458 SDL_LockMutex(is->pictq_mutex);
1460 SDL_UnlockMutex(is->pictq_mutex);
1465 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1469 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1472 if (pkt->data == flush_pkt.data) {
1473 avcodec_flush_buffers(is->video_st->codec);
1475 SDL_LockMutex(is->pictq_mutex);
1476 // Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1477 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1478 is->pictq[i].skip = 1;
1480 while (is->pictq_size && !is->videoq.abort_request) {
1481 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1483 is->video_current_pos = -1;
1484 is->frame_last_pts = AV_NOPTS_VALUE;
1485 is->frame_last_duration = 0;
1486 is->frame_timer = (double)av_gettime() / 1000000.0;
1487 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1488 SDL_UnlockMutex(is->pictq_mutex);
1493 avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
1498 if (decoder_reorder_pts == -1) {
1499 *pts = *(int64_t*)av_opt_ptr(avcodec_get_frame_class(), frame, "best_effort_timestamp");
1500 } else if (decoder_reorder_pts) {
1501 *pts = frame->pkt_pts;
1503 *pts = frame->pkt_dts;
1506 if (*pts == AV_NOPTS_VALUE) {
1510 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) || is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK) &&
1511 (framedrop>0 || (framedrop && is->audio_st))) {
1512 SDL_LockMutex(is->pictq_mutex);
1513 if (is->frame_last_pts != AV_NOPTS_VALUE && *pts) {
1514 double clockdiff = get_video_clock(is) - get_master_clock(is);
1515 double dpts = av_q2d(is->video_st->time_base) * *pts;
1516 double ptsdiff = dpts - is->frame_last_pts;
1517 if (fabs(clockdiff) < AV_NOSYNC_THRESHOLD &&
1518 ptsdiff > 0 && ptsdiff < AV_NOSYNC_THRESHOLD &&
1519 clockdiff + ptsdiff - is->frame_last_filter_delay < 0) {
1520 is->frame_last_dropped_pos = pkt->pos;
1521 is->frame_last_dropped_pts = dpts;
1522 is->frame_drops_early++;
1526 SDL_UnlockMutex(is->pictq_mutex);
1530 is->frame_last_returned_time = av_gettime() / 1000000.0;
1544 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1546 AVFilterContext *ctx = codec->opaque;
1547 AVFilterBufferRef *ref;
1548 int perms = AV_PERM_WRITE;
1549 int i, w, h, stride[4];
1553 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1555 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1556 perms |= AV_PERM_NEG_LINESIZES;
1558 if (pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1559 if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1560 if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1561 if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1563 if (pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1568 if(av_image_check_size(w, h, 0, codec))
1571 avcodec_align_dimensions2(codec, &w, &h, stride);
1572 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1575 if (codec->pix_fmt != ctx->outputs[0]->format) {
1576 av_log(codec, AV_LOG_ERROR, "Pixel format mismatches %d %d\n", codec->pix_fmt, ctx->outputs[0]->format);
1579 if (!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1582 pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1 + 1;
1583 ref->video->w = codec->width;
1584 ref->video->h = codec->height;
1585 for (i = 0; i < 4; i ++) {
1586 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1587 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1590 ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1592 pic->data[i] = ref->data[i];
1593 pic->linesize[i] = ref->linesize[i];
1596 pic->type = FF_BUFFER_TYPE_USER;
1597 pic->reordered_opaque = codec->reordered_opaque;
1598 if (codec->pkt) pic->pkt_pts = codec->pkt->pts;
1599 else pic->pkt_pts = AV_NOPTS_VALUE;
1603 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1605 memset(pic->data, 0, sizeof(pic->data));
1606 avfilter_unref_buffer(pic->opaque);
1609 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1611 AVFilterBufferRef *ref = pic->opaque;
1613 if (pic->data[0] == NULL) {
1614 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1615 return codec->get_buffer(codec, pic);
1618 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1619 (codec->pix_fmt != ref->format)) {
1620 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1624 pic->reordered_opaque = codec->reordered_opaque;
1625 if (codec->pkt) pic->pkt_pts = codec->pkt->pts;
1626 else pic->pkt_pts = AV_NOPTS_VALUE;
1630 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1632 FilterPriv *priv = ctx->priv;
1633 AVCodecContext *codec;
1634 if (!opaque) return -1;
1637 codec = priv->is->video_st->codec;
1638 codec->opaque = ctx;
1639 if (codec->codec->capabilities & CODEC_CAP_DR1) {
1640 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1642 codec->get_buffer = input_get_buffer;
1643 codec->release_buffer = input_release_buffer;
1644 codec->reget_buffer = input_reget_buffer;
1645 codec->thread_safe_callbacks = 1;
1648 priv->frame = avcodec_alloc_frame();
1653 static void input_uninit(AVFilterContext *ctx)
1655 FilterPriv *priv = ctx->priv;
1656 av_free(priv->frame);
1659 static int input_request_frame(AVFilterLink *link)
1661 FilterPriv *priv = link->src->priv;
1662 AVFilterBufferRef *picref;
1667 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1668 av_free_packet(&pkt);
1672 if (priv->use_dr1 && priv->frame->opaque) {
1673 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1675 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1676 av_image_copy(picref->data, picref->linesize,
1677 priv->frame->data, priv->frame->linesize,
1678 picref->format, link->w, link->h);
1680 av_free_packet(&pkt);
1682 avfilter_copy_frame_props(picref, priv->frame);
1685 avfilter_start_frame(link, picref);
1686 avfilter_draw_slice(link, 0, link->h, 1);
1687 avfilter_end_frame(link);
1692 static int input_query_formats(AVFilterContext *ctx)
1694 FilterPriv *priv = ctx->priv;
1695 enum PixelFormat pix_fmts[] = {
1696 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1699 avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
1703 static int input_config_props(AVFilterLink *link)
1705 FilterPriv *priv = link->src->priv;
1706 AVStream *s = priv->is->video_st;
1708 link->w = s->codec->width;
1709 link->h = s->codec->height;
1710 link->sample_aspect_ratio = s->sample_aspect_ratio.num ?
1711 s->sample_aspect_ratio : s->codec->sample_aspect_ratio;
1712 link->time_base = s->time_base;
1717 static AVFilter input_filter =
1719 .name = "ffplay_input",
1721 .priv_size = sizeof(FilterPriv),
1724 .uninit = input_uninit,
1726 .query_formats = input_query_formats,
1728 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1729 .outputs = (AVFilterPad[]) {{ .name = "default",
1730 .type = AVMEDIA_TYPE_VIDEO,
1731 .request_frame = input_request_frame,
1732 .config_props = input_config_props, },
1736 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1738 char sws_flags_str[128];
1740 enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
1741 AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
1742 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1743 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1744 graph->scale_sws_opts = av_strdup(sws_flags_str);
1746 if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1747 NULL, is, graph)) < 0)
1749 #if FF_API_OLD_VSINK_API
1750 ret = avfilter_graph_create_filter(&filt_out, avfilter_get_by_name("buffersink"), "out",
1751 NULL, pix_fmts, graph);
1753 buffersink_params->pixel_fmts = pix_fmts;
1754 ret = avfilter_graph_create_filter(&filt_out, avfilter_get_by_name("buffersink"), "out",
1755 NULL, buffersink_params, graph);
1757 av_freep(&buffersink_params);
1762 AVFilterInOut *outputs = avfilter_inout_alloc();
1763 AVFilterInOut *inputs = avfilter_inout_alloc();
1765 outputs->name = av_strdup("in");
1766 outputs->filter_ctx = filt_src;
1767 outputs->pad_idx = 0;
1768 outputs->next = NULL;
1770 inputs->name = av_strdup("out");
1771 inputs->filter_ctx = filt_out;
1772 inputs->pad_idx = 0;
1773 inputs->next = NULL;
1775 if ((ret = avfilter_graph_parse(graph, vfilters, &inputs, &outputs, NULL)) < 0)
1778 if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1782 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1785 is->out_video_filter = filt_out;
1790 #endif /* CONFIG_AVFILTER */
1792 static int video_thread(void *arg)
1794 VideoState *is = arg;
1795 AVFrame *frame = avcodec_alloc_frame();
1796 int64_t pts_int = AV_NOPTS_VALUE, pos = -1;
1801 AVFilterGraph *graph = avfilter_graph_alloc();
1802 AVFilterContext *filt_out = NULL;
1803 int last_w = is->video_st->codec->width;
1804 int last_h = is->video_st->codec->height;
1806 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1808 filt_out = is->out_video_filter;
1812 #if !CONFIG_AVFILTER
1815 AVFilterBufferRef *picref;
1816 AVRational tb = filt_out->inputs[0]->time_base;
1818 while (is->paused && !is->videoq.abort_request)
1821 if ( last_w != is->video_st->codec->width
1822 || last_h != is->video_st->codec->height) {
1823 av_log(NULL, AV_LOG_INFO, "Frame changed from size:%dx%d to size:%dx%d\n",
1824 last_w, last_h, is->video_st->codec->width, is->video_st->codec->height);
1825 avfilter_graph_free(&graph);
1826 graph = avfilter_graph_alloc();
1827 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1829 filt_out = is->out_video_filter;
1830 last_w = is->video_st->codec->width;
1831 last_h = is->video_st->codec->height;
1833 ret = av_buffersink_get_buffer_ref(filt_out, &picref, 0);
1835 avfilter_fill_frame_from_video_buffer_ref(frame, picref);
1836 pts_int = picref->pts;
1838 frame->opaque = picref;
1841 if (av_cmp_q(tb, is->video_st->time_base)) {
1842 av_unused int64_t pts1 = pts_int;
1843 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1844 av_dlog(NULL, "video_thread(): "
1845 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1846 tb.num, tb.den, pts1,
1847 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1850 ret = get_video_frame(is, frame, &pts_int, &pkt);
1852 av_free_packet(&pkt);
1858 is->frame_last_filter_delay = av_gettime() / 1000000.0 - is->frame_last_returned_time;
1859 if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0)
1860 is->frame_last_filter_delay = 0;
1867 pts = pts_int * av_q2d(is->video_st->time_base);
1869 ret = queue_picture(is, frame, pts, pos);
1875 stream_toggle_pause(is);
1879 avfilter_graph_free(&graph);
1885 static int subtitle_thread(void *arg)
1887 VideoState *is = arg;
1889 AVPacket pkt1, *pkt = &pkt1;
1893 int r, g, b, y, u, v, a;
1896 while (is->paused && !is->subtitleq.abort_request) {
1899 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1902 if (pkt->data == flush_pkt.data) {
1903 avcodec_flush_buffers(is->subtitle_st->codec);
1906 SDL_LockMutex(is->subpq_mutex);
1907 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1908 !is->subtitleq.abort_request) {
1909 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1911 SDL_UnlockMutex(is->subpq_mutex);
1913 if (is->subtitleq.abort_request)
1916 sp = &is->subpq[is->subpq_windex];
1918 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1919 this packet, if any */
1921 if (pkt->pts != AV_NOPTS_VALUE)
1922 pts = av_q2d(is->subtitle_st->time_base) * pkt->pts;
1924 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1925 &got_subtitle, pkt);
1927 if (got_subtitle && sp->sub.format == 0) {
1930 for (i = 0; i < sp->sub.num_rects; i++)
1932 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1934 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1935 y = RGB_TO_Y_CCIR(r, g, b);
1936 u = RGB_TO_U_CCIR(r, g, b, 0);
1937 v = RGB_TO_V_CCIR(r, g, b, 0);
1938 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1942 /* now we can update the picture count */
1943 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1944 is->subpq_windex = 0;
1945 SDL_LockMutex(is->subpq_mutex);
1947 SDL_UnlockMutex(is->subpq_mutex);
1949 av_free_packet(pkt);
1954 /* copy samples for viewing in editor window */
1955 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1959 size = samples_size / sizeof(short);
1961 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1964 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1966 is->sample_array_index += len;
1967 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1968 is->sample_array_index = 0;
1973 /* return the wanted number of samples to get better sync if sync_type is video
1974 * or external master clock */
1975 static int synchronize_audio(VideoState *is, int nb_samples)
1977 int wanted_nb_samples = nb_samples;
1979 /* if not master, then we try to remove or add samples to correct the clock */
1980 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1981 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1982 double diff, avg_diff;
1983 int min_nb_samples, max_nb_samples;
1985 diff = get_audio_clock(is) - get_master_clock(is);
1987 if (diff < AV_NOSYNC_THRESHOLD) {
1988 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1989 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1990 /* not enough measures to have a correct estimate */
1991 is->audio_diff_avg_count++;
1993 /* estimate the A-V difference */
1994 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1996 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1997 wanted_nb_samples = nb_samples + (int)(diff * is->audio_src_freq);
1998 min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100));
1999 max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100));
2000 wanted_nb_samples = FFMIN(FFMAX(wanted_nb_samples, min_nb_samples), max_nb_samples);
2002 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2003 diff, avg_diff, wanted_nb_samples - nb_samples,
2004 is->audio_clock, is->video_clock, is->audio_diff_threshold);
2007 /* too big difference : may be initial PTS errors, so
2009 is->audio_diff_avg_count = 0;
2010 is->audio_diff_cum = 0;
2014 return wanted_nb_samples;
2017 /* decode one audio frame and returns its uncompressed size */
2018 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2020 AVPacket *pkt_temp = &is->audio_pkt_temp;
2021 AVPacket *pkt = &is->audio_pkt;
2022 AVCodecContext *dec = is->audio_st->codec;
2023 int len1, len2, data_size, resampled_data_size;
2024 int64_t dec_channel_layout;
2028 int flush_complete = 0;
2029 int wanted_nb_samples;
2032 /* NOTE: the audio packet can contain several frames */
2033 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
2035 if (!(is->frame = avcodec_alloc_frame()))
2036 return AVERROR(ENOMEM);
2038 avcodec_get_frame_defaults(is->frame);
2043 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
2045 /* if error, we skip the frame */
2050 pkt_temp->data += len1;
2051 pkt_temp->size -= len1;
2054 /* stop sending empty packets if the decoder is finished */
2055 if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
2059 data_size = av_samples_get_buffer_size(NULL, dec->channels,
2060 is->frame->nb_samples,
2061 dec->sample_fmt, 1);
2063 dec_channel_layout = (dec->channel_layout && dec->channels == av_get_channel_layout_nb_channels(dec->channel_layout)) ? dec->channel_layout : av_get_default_channel_layout(dec->channels);
2064 wanted_nb_samples = synchronize_audio(is, is->frame->nb_samples);
2066 if (dec->sample_fmt != is->audio_src_fmt ||
2067 dec_channel_layout != is->audio_src_channel_layout ||
2068 dec->sample_rate != is->audio_src_freq ||
2069 (wanted_nb_samples != is->frame->nb_samples && !is->swr_ctx)) {
2071 swr_free(&is->swr_ctx);
2072 is->swr_ctx = swr_alloc_set_opts(NULL,
2073 is->audio_tgt_channel_layout, is->audio_tgt_fmt, is->audio_tgt_freq,
2074 dec_channel_layout, dec->sample_fmt, dec->sample_rate,
2076 if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
2077 fprintf(stderr, "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
2079 av_get_sample_fmt_name(dec->sample_fmt),
2082 av_get_sample_fmt_name(is->audio_tgt_fmt),
2083 is->audio_tgt_channels);
2086 is->audio_src_channel_layout = dec_channel_layout;
2087 is->audio_src_channels = dec->channels;
2088 is->audio_src_freq = dec->sample_rate;
2089 is->audio_src_fmt = dec->sample_fmt;
2092 resampled_data_size = data_size;
2094 const uint8_t *in[] = { is->frame->data[0] };
2095 uint8_t *out[] = {is->audio_buf2};
2096 if (wanted_nb_samples != is->frame->nb_samples) {
2097 if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - is->frame->nb_samples) * is->audio_tgt_freq / dec->sample_rate,
2098 wanted_nb_samples * is->audio_tgt_freq / dec->sample_rate) < 0) {
2099 fprintf(stderr, "swr_set_compensation() failed\n");
2103 len2 = swr_convert(is->swr_ctx, out, sizeof(is->audio_buf2) / is->audio_tgt_channels / av_get_bytes_per_sample(is->audio_tgt_fmt),
2104 in, is->frame->nb_samples);
2106 fprintf(stderr, "audio_resample() failed\n");
2109 if (len2 == sizeof(is->audio_buf2) / is->audio_tgt_channels / av_get_bytes_per_sample(is->audio_tgt_fmt)) {
2110 fprintf(stderr, "warning: audio buffer is probably too small\n");
2111 swr_init(is->swr_ctx);
2113 is->audio_buf = is->audio_buf2;
2114 resampled_data_size = len2 * is->audio_tgt_channels * av_get_bytes_per_sample(is->audio_tgt_fmt);
2116 is->audio_buf = is->frame->data[0];
2119 /* if no pts, then compute it */
2120 pts = is->audio_clock;
2122 is->audio_clock += (double)data_size / (dec->channels * dec->sample_rate * av_get_bytes_per_sample(dec->sample_fmt));
2125 static double last_clock;
2126 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2127 is->audio_clock - last_clock,
2128 is->audio_clock, pts);
2129 last_clock = is->audio_clock;
2132 return resampled_data_size;
2135 /* free the current packet */
2137 av_free_packet(pkt);
2138 memset(pkt_temp, 0, sizeof(*pkt_temp));
2140 if (is->paused || is->audioq.abort_request) {
2144 /* read next packet */
2145 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
2148 if (pkt->data == flush_pkt.data)
2149 avcodec_flush_buffers(dec);
2153 /* if update the audio clock with the pts */
2154 if (pkt->pts != AV_NOPTS_VALUE) {
2155 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2160 /* prepare a new audio buffer */
2161 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2163 VideoState *is = opaque;
2164 int audio_size, len1;
2166 int frame_size = av_samples_get_buffer_size(NULL, is->audio_tgt_channels, 1, is->audio_tgt_fmt, 1);
2169 audio_callback_time = av_gettime();
2172 if (is->audio_buf_index >= is->audio_buf_size) {
2173 audio_size = audio_decode_frame(is, &pts);
2174 if (audio_size < 0) {
2175 /* if error, just output silence */
2176 is->audio_buf = is->silence_buf;
2177 is->audio_buf_size = sizeof(is->silence_buf) / frame_size * frame_size;
2179 if (is->show_mode != SHOW_MODE_VIDEO)
2180 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2181 is->audio_buf_size = audio_size;
2183 is->audio_buf_index = 0;
2185 len1 = is->audio_buf_size - is->audio_buf_index;
2188 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2191 is->audio_buf_index += len1;
2193 bytes_per_sec = is->audio_tgt_freq * is->audio_tgt_channels * av_get_bytes_per_sample(is->audio_tgt_fmt);
2194 is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
2195 /* Let's assume the audio driver that is used by SDL has two periods. */
2196 is->audio_current_pts = is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec;
2197 is->audio_current_pts_drift = is->audio_current_pts - audio_callback_time / 1000000.0;
2200 /* open a given stream. Return 0 if OK */
2201 static int stream_component_open(VideoState *is, int stream_index)
2203 AVFormatContext *ic = is->ic;
2204 AVCodecContext *avctx;
2206 SDL_AudioSpec wanted_spec, spec;
2208 AVDictionaryEntry *t = NULL;
2209 int64_t wanted_channel_layout = 0;
2210 int wanted_nb_channels;
2213 if (stream_index < 0 || stream_index >= ic->nb_streams)
2215 avctx = ic->streams[stream_index]->codec;
2217 codec = avcodec_find_decoder(avctx->codec_id);
2218 opts = filter_codec_opts(codec_opts, codec, ic, ic->streams[stream_index]);
2220 switch(avctx->codec_type){
2221 case AVMEDIA_TYPE_AUDIO : if(audio_codec_name ) codec= avcodec_find_decoder_by_name( audio_codec_name); break;
2222 case AVMEDIA_TYPE_SUBTITLE: if(subtitle_codec_name) codec= avcodec_find_decoder_by_name(subtitle_codec_name); break;
2223 case AVMEDIA_TYPE_VIDEO : if(video_codec_name ) codec= avcodec_find_decoder_by_name( video_codec_name); break;
2228 avctx->workaround_bugs = workaround_bugs;
2229 avctx->lowres = lowres;
2230 if(avctx->lowres > codec->max_lowres){
2231 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
2233 avctx->lowres= codec->max_lowres;
2235 avctx->idct_algo = idct;
2236 avctx->skip_frame = skip_frame;
2237 avctx->skip_idct = skip_idct;
2238 avctx->skip_loop_filter = skip_loop_filter;
2239 avctx->error_recognition = error_recognition;
2240 avctx->error_concealment = error_concealment;
2242 if(avctx->lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2243 if (fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2244 if(codec->capabilities & CODEC_CAP_DR1)
2245 avctx->flags |= CODEC_FLAG_EMU_EDGE;
2247 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2248 env = SDL_getenv("SDL_AUDIO_CHANNELS");
2250 wanted_channel_layout = av_get_default_channel_layout(SDL_atoi(env));
2251 if (!wanted_channel_layout) {
2252 wanted_channel_layout = (avctx->channel_layout && avctx->channels == av_get_channel_layout_nb_channels(avctx->channel_layout)) ? avctx->channel_layout : av_get_default_channel_layout(avctx->channels);
2253 wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX;
2254 wanted_nb_channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
2255 /* SDL only supports 1, 2, 4 or 6 channels at the moment, so we have to make sure not to request anything else. */
2256 while (wanted_nb_channels > 0 && (wanted_nb_channels == 3 || wanted_nb_channels == 5 || wanted_nb_channels > 6)) {
2257 wanted_nb_channels--;
2258 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2261 wanted_spec.channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
2262 wanted_spec.freq = avctx->sample_rate;
2263 if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) {
2264 fprintf(stderr, "Invalid sample rate or channel count!\n");
2269 if (!av_dict_get(opts, "threads", NULL, 0))
2270 av_dict_set(&opts, "threads", "auto", 0);
2272 avcodec_open2(avctx, codec, &opts) < 0)
2274 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2275 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2276 return AVERROR_OPTION_NOT_FOUND;
2279 /* prepare audio output */
2280 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2281 wanted_spec.format = AUDIO_S16SYS;
2282 wanted_spec.silence = 0;
2283 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2284 wanted_spec.callback = sdl_audio_callback;
2285 wanted_spec.userdata = is;
2286 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2287 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2290 is->audio_hw_buf_size = spec.size;
2291 if (spec.format != AUDIO_S16SYS) {
2292 fprintf(stderr, "SDL advised audio format %d is not supported!\n", spec.format);
2295 if (spec.channels != wanted_spec.channels) {
2296 wanted_channel_layout = av_get_default_channel_layout(spec.channels);
2297 if (!wanted_channel_layout) {
2298 fprintf(stderr, "SDL advised channel count %d is not supported!\n", spec.channels);
2302 is->audio_src_fmt = is->audio_tgt_fmt = AV_SAMPLE_FMT_S16;
2303 is->audio_src_freq = is->audio_tgt_freq = spec.freq;
2304 is->audio_src_channel_layout = is->audio_tgt_channel_layout = wanted_channel_layout;
2305 is->audio_src_channels = is->audio_tgt_channels = spec.channels;
2308 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2309 switch (avctx->codec_type) {
2310 case AVMEDIA_TYPE_AUDIO:
2311 is->audio_stream = stream_index;
2312 is->audio_st = ic->streams[stream_index];
2313 is->audio_buf_size = 0;
2314 is->audio_buf_index = 0;
2316 /* init averaging filter */
2317 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2318 is->audio_diff_avg_count = 0;
2319 /* since we do not have a precise anough audio fifo fullness,
2320 we correct audio sync only if larger than this threshold */
2321 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / wanted_spec.freq;
2323 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2324 packet_queue_init(&is->audioq);
2327 case AVMEDIA_TYPE_VIDEO:
2328 is->video_stream = stream_index;
2329 is->video_st = ic->streams[stream_index];
2331 packet_queue_init(&is->videoq);
2332 is->video_tid = SDL_CreateThread(video_thread, is);
2334 case AVMEDIA_TYPE_SUBTITLE:
2335 is->subtitle_stream = stream_index;
2336 is->subtitle_st = ic->streams[stream_index];
2337 packet_queue_init(&is->subtitleq);
2339 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2347 static void stream_component_close(VideoState *is, int stream_index)
2349 AVFormatContext *ic = is->ic;
2350 AVCodecContext *avctx;
2352 if (stream_index < 0 || stream_index >= ic->nb_streams)
2354 avctx = ic->streams[stream_index]->codec;
2356 switch (avctx->codec_type) {
2357 case AVMEDIA_TYPE_AUDIO:
2358 packet_queue_abort(&is->audioq);
2362 packet_queue_end(&is->audioq);
2364 swr_free(&is->swr_ctx);
2365 av_free_packet(&is->audio_pkt);
2366 av_freep(&is->audio_buf1);
2367 is->audio_buf = NULL;
2368 av_freep(&is->frame);
2371 av_rdft_end(is->rdft);
2372 av_freep(&is->rdft_data);
2377 case AVMEDIA_TYPE_VIDEO:
2378 packet_queue_abort(&is->videoq);
2380 /* note: we also signal this mutex to make sure we deblock the
2381 video thread in all cases */
2382 SDL_LockMutex(is->pictq_mutex);
2383 SDL_CondSignal(is->pictq_cond);
2384 SDL_UnlockMutex(is->pictq_mutex);
2386 SDL_WaitThread(is->video_tid, NULL);
2388 packet_queue_end(&is->videoq);
2390 case AVMEDIA_TYPE_SUBTITLE:
2391 packet_queue_abort(&is->subtitleq);
2393 /* note: we also signal this mutex to make sure we deblock the
2394 video thread in all cases */
2395 SDL_LockMutex(is->subpq_mutex);
2396 is->subtitle_stream_changed = 1;
2398 SDL_CondSignal(is->subpq_cond);
2399 SDL_UnlockMutex(is->subpq_mutex);
2401 SDL_WaitThread(is->subtitle_tid, NULL);
2403 packet_queue_end(&is->subtitleq);
2409 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2410 avcodec_close(avctx);
2411 switch (avctx->codec_type) {
2412 case AVMEDIA_TYPE_AUDIO:
2413 is->audio_st = NULL;
2414 is->audio_stream = -1;
2416 case AVMEDIA_TYPE_VIDEO:
2417 is->video_st = NULL;
2418 is->video_stream = -1;
2420 case AVMEDIA_TYPE_SUBTITLE:
2421 is->subtitle_st = NULL;
2422 is->subtitle_stream = -1;
2429 static int decode_interrupt_cb(void *ctx)
2431 VideoState *is = ctx;
2432 return is->abort_request;
2435 /* this thread gets the stream from the disk or the network */
2436 static int read_thread(void *arg)
2438 VideoState *is = arg;
2439 AVFormatContext *ic = NULL;
2441 int st_index[AVMEDIA_TYPE_NB];
2442 AVPacket pkt1, *pkt = &pkt1;
2444 int pkt_in_play_range = 0;
2445 AVDictionaryEntry *t;
2446 AVDictionary **opts;
2447 int orig_nb_streams;
2449 memset(st_index, -1, sizeof(st_index));
2450 is->video_stream = -1;
2451 is->audio_stream = -1;
2452 is->subtitle_stream = -1;
2454 ic = avformat_alloc_context();
2455 ic->interrupt_callback.callback = decode_interrupt_cb;
2456 ic->interrupt_callback.opaque = is;
2457 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2459 print_error(is->filename, err);
2463 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2464 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2465 ret = AVERROR_OPTION_NOT_FOUND;
2471 ic->flags |= AVFMT_FLAG_GENPTS;
2473 opts = setup_find_stream_info_opts(ic, codec_opts);
2474 orig_nb_streams = ic->nb_streams;
2476 err = avformat_find_stream_info(ic, opts);
2478 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2482 for (i = 0; i < orig_nb_streams; i++)
2483 av_dict_free(&opts[i]);
2487 ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
2489 if (seek_by_bytes < 0)
2490 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2492 /* if seeking requested, we execute it */
2493 if (start_time != AV_NOPTS_VALUE) {
2496 timestamp = start_time;
2497 /* add the stream start time */
2498 if (ic->start_time != AV_NOPTS_VALUE)
2499 timestamp += ic->start_time;
2500 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2502 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2503 is->filename, (double)timestamp / AV_TIME_BASE);
2507 for (i = 0; i < ic->nb_streams; i++)
2508 ic->streams[i]->discard = AVDISCARD_ALL;
2510 st_index[AVMEDIA_TYPE_VIDEO] =
2511 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2512 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2514 st_index[AVMEDIA_TYPE_AUDIO] =
2515 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2516 wanted_stream[AVMEDIA_TYPE_AUDIO],
2517 st_index[AVMEDIA_TYPE_VIDEO],
2520 st_index[AVMEDIA_TYPE_SUBTITLE] =
2521 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2522 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2523 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2524 st_index[AVMEDIA_TYPE_AUDIO] :
2525 st_index[AVMEDIA_TYPE_VIDEO]),
2528 av_dump_format(ic, 0, is->filename, 0);
2531 is->show_mode = show_mode;
2533 /* open the streams */
2534 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2535 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2539 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2540 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2542 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2543 if (is->show_mode == SHOW_MODE_NONE)
2544 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2546 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2547 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2550 if (is->video_stream < 0 && is->audio_stream < 0) {
2551 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2557 if (is->abort_request)
2559 if (is->paused != is->last_paused) {
2560 is->last_paused = is->paused;
2562 is->read_pause_return = av_read_pause(ic);
2566 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
2568 (!strcmp(ic->iformat->name, "rtsp") ||
2569 (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) {
2570 /* wait 10 ms to avoid trying to get another packet */
2577 int64_t seek_target = is->seek_pos;
2578 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2579 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2580 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2581 // of the seek_pos/seek_rel variables
2583 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2585 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2587 if (is->audio_stream >= 0) {
2588 packet_queue_flush(&is->audioq);
2589 packet_queue_put(&is->audioq, &flush_pkt);
2591 if (is->subtitle_stream >= 0) {
2592 packet_queue_flush(&is->subtitleq);
2593 packet_queue_put(&is->subtitleq, &flush_pkt);
2595 if (is->video_stream >= 0) {
2596 packet_queue_flush(&is->videoq);
2597 packet_queue_put(&is->videoq, &flush_pkt);
2604 /* if the queue are full, no need to read more */
2605 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2606 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream < 0)
2607 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0)
2608 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0))) {
2614 if (is->video_stream >= 0) {
2615 av_init_packet(pkt);
2618 pkt->stream_index = is->video_stream;
2619 packet_queue_put(&is->videoq, pkt);
2621 if (is->audio_stream >= 0 &&
2622 is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
2623 av_init_packet(pkt);
2626 pkt->stream_index = is->audio_stream;
2627 packet_queue_put(&is->audioq, pkt);
2630 if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) {
2631 if (loop != 1 && (!loop || --loop)) {
2632 stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2633 } else if (autoexit) {
2641 ret = av_read_frame(ic, pkt);
2643 if (ret == AVERROR_EOF || url_feof(ic->pb))
2645 if (ic->pb && ic->pb->error)
2647 SDL_Delay(100); /* wait for user event */
2650 /* check if packet is in play range specified by user, then queue, otherwise discard */
2651 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2652 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2653 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2654 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2655 <= ((double)duration / 1000000);
2656 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2657 packet_queue_put(&is->audioq, pkt);
2658 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2659 packet_queue_put(&is->videoq, pkt);
2660 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2661 packet_queue_put(&is->subtitleq, pkt);
2663 av_free_packet(pkt);
2666 /* wait until the end */
2667 while (!is->abort_request) {
2673 /* close each stream */
2674 if (is->audio_stream >= 0)
2675 stream_component_close(is, is->audio_stream);
2676 if (is->video_stream >= 0)
2677 stream_component_close(is, is->video_stream);
2678 if (is->subtitle_stream >= 0)
2679 stream_component_close(is, is->subtitle_stream);
2681 avformat_close_input(&is->ic);
2687 event.type = FF_QUIT_EVENT;
2688 event.user.data1 = is;
2689 SDL_PushEvent(&event);
2694 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2698 is = av_mallocz(sizeof(VideoState));
2701 av_strlcpy(is->filename, filename, sizeof(is->filename));
2702 is->iformat = iformat;
2706 /* start video display */
2707 is->pictq_mutex = SDL_CreateMutex();
2708 is->pictq_cond = SDL_CreateCond();
2710 is->subpq_mutex = SDL_CreateMutex();
2711 is->subpq_cond = SDL_CreateCond();
2713 is->av_sync_type = av_sync_type;
2714 is->read_tid = SDL_CreateThread(read_thread, is);
2715 if (!is->read_tid) {
2722 static void stream_cycle_channel(VideoState *is, int codec_type)
2724 AVFormatContext *ic = is->ic;
2725 int start_index, stream_index;
2728 if (codec_type == AVMEDIA_TYPE_VIDEO)
2729 start_index = is->video_stream;
2730 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2731 start_index = is->audio_stream;
2733 start_index = is->subtitle_stream;
2734 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2736 stream_index = start_index;
2738 if (++stream_index >= is->ic->nb_streams)
2740 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2747 if (stream_index == start_index)
2749 st = ic->streams[stream_index];
2750 if (st->codec->codec_type == codec_type) {
2751 /* check that parameters are OK */
2752 switch (codec_type) {
2753 case AVMEDIA_TYPE_AUDIO:
2754 if (st->codec->sample_rate != 0 &&
2755 st->codec->channels != 0)
2758 case AVMEDIA_TYPE_VIDEO:
2759 case AVMEDIA_TYPE_SUBTITLE:
2767 stream_component_close(is, start_index);
2768 stream_component_open(is, stream_index);
2772 static void toggle_full_screen(VideoState *is)
2775 is_full_screen = !is_full_screen;
2776 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2777 /* OS X needs to reallocate the SDL overlays */
2778 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
2779 is->pictq[i].reallocate = 1;
2785 static void toggle_pause(VideoState *is)
2787 stream_toggle_pause(is);
2791 static void step_to_next_frame(VideoState *is)
2793 /* if the stream is paused unpause it, then step */
2795 stream_toggle_pause(is);
2799 static void toggle_audio_display(VideoState *is)
2801 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2802 is->show_mode = (is->show_mode + 1) % SHOW_MODE_NB;
2803 fill_rectangle(screen,
2804 is->xleft, is->ytop, is->width, is->height,
2806 SDL_UpdateRect(screen, is->xleft, is->ytop, is->width, is->height);
2809 /* handle an event sent by the GUI */
2810 static void event_loop(VideoState *cur_stream)
2813 double incr, pos, frac;
2817 SDL_WaitEvent(&event);
2818 switch (event.type) {
2820 if (exit_on_keydown) {
2821 do_exit(cur_stream);
2824 switch (event.key.keysym.sym) {
2827 do_exit(cur_stream);
2830 toggle_full_screen(cur_stream);
2834 toggle_pause(cur_stream);
2836 case SDLK_s: // S: Step to next frame
2837 step_to_next_frame(cur_stream);
2840 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2843 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2846 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2849 toggle_audio_display(cur_stream);
2869 if (seek_by_bytes) {
2870 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) {
2871 pos = cur_stream->video_current_pos;
2872 } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) {
2873 pos = cur_stream->audio_pkt.pos;
2875 pos = avio_tell(cur_stream->ic->pb);
2876 if (cur_stream->ic->bit_rate)
2877 incr *= cur_stream->ic->bit_rate / 8.0;
2881 stream_seek(cur_stream, pos, incr, 1);
2883 pos = get_master_clock(cur_stream);
2885 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2892 case SDL_MOUSEBUTTONDOWN:
2893 if (exit_on_mousedown) {
2894 do_exit(cur_stream);
2897 case SDL_MOUSEMOTION:
2898 if (event.type == SDL_MOUSEBUTTONDOWN) {
2901 if (event.motion.state != SDL_PRESSED)
2905 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
2906 uint64_t size = avio_size(cur_stream->ic->pb);
2907 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2911 int tns, thh, tmm, tss;
2912 tns = cur_stream->ic->duration / 1000000LL;
2914 tmm = (tns % 3600) / 60;
2916 frac = x / cur_stream->width;
2919 mm = (ns % 3600) / 60;
2921 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2922 hh, mm, ss, thh, tmm, tss);
2923 ts = frac * cur_stream->ic->duration;
2924 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2925 ts += cur_stream->ic->start_time;
2926 stream_seek(cur_stream, ts, 0, 0);
2929 case SDL_VIDEORESIZE:
2930 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2931 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2932 screen_width = cur_stream->width = event.resize.w;
2933 screen_height = cur_stream->height = event.resize.h;
2937 do_exit(cur_stream);
2939 case FF_ALLOC_EVENT:
2940 video_open(event.user.data1, 0);
2941 alloc_picture(event.user.data1);
2943 case FF_REFRESH_EVENT:
2944 video_refresh(event.user.data1);
2945 cur_stream->refresh = 0;
2953 static int opt_frame_size(const char *opt, const char *arg)
2955 av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
2956 return opt_default("video_size", arg);
2959 static int opt_width(const char *opt, const char *arg)
2961 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2965 static int opt_height(const char *opt, const char *arg)
2967 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2971 static int opt_format(const char *opt, const char *arg)
2973 file_iformat = av_find_input_format(arg);
2974 if (!file_iformat) {
2975 fprintf(stderr, "Unknown input format: %s\n", arg);
2976 return AVERROR(EINVAL);
2981 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2983 av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
2984 return opt_default("pixel_format", arg);
2987 static int opt_sync(const char *opt, const char *arg)
2989 if (!strcmp(arg, "audio"))
2990 av_sync_type = AV_SYNC_AUDIO_MASTER;
2991 else if (!strcmp(arg, "video"))
2992 av_sync_type = AV_SYNC_VIDEO_MASTER;
2993 else if (!strcmp(arg, "ext"))
2994 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2996 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
3002 static int opt_seek(const char *opt, const char *arg)
3004 start_time = parse_time_or_die(opt, arg, 1);
3008 static int opt_duration(const char *opt, const char *arg)
3010 duration = parse_time_or_die(opt, arg, 1);
3014 static int opt_show_mode(const char *opt, const char *arg)
3016 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
3017 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
3018 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
3019 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
3023 static void opt_input_file(void *optctx, const char *filename)
3025 if (input_filename) {
3026 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3027 filename, input_filename);
3030 if (!strcmp(filename, "-"))
3032 input_filename = filename;
3035 static int opt_codec(void *o, const char *opt, const char *arg)
3037 switch(opt[strlen(opt)-1]){
3038 case 'a' : audio_codec_name = arg; break;
3039 case 's' : subtitle_codec_name = arg; break;
3040 case 'v' : video_codec_name = arg; break;
3047 static const OptionDef options[] = {
3048 #include "cmdutils_common_opts.h"
3049 { "x", HAS_ARG, { (void*)opt_width }, "force displayed width", "width" },
3050 { "y", HAS_ARG, { (void*)opt_height }, "force displayed height", "height" },
3051 { "s", HAS_ARG | OPT_VIDEO, { (void*)opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
3052 { "fs", OPT_BOOL, { (void*)&is_full_screen }, "force full screen" },
3053 { "an", OPT_BOOL, { (void*)&audio_disable }, "disable audio" },
3054 { "vn", OPT_BOOL, { (void*)&video_disable }, "disable video" },
3055 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
3056 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
3057 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
3058 { "ss", HAS_ARG, { (void*)&opt_seek }, "seek to a given position in seconds", "pos" },
3059 { "t", HAS_ARG, { (void*)&opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
3060 { "bytes", OPT_INT | HAS_ARG, { (void*)&seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
3061 { "nodisp", OPT_BOOL, { (void*)&display_disable }, "disable graphical display" },
3062 { "f", HAS_ARG, { (void*)opt_format }, "force format", "fmt" },
3063 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { (void*)opt_frame_pix_fmt }, "set pixel format", "format" },
3064 { "stats", OPT_BOOL | OPT_EXPERT, { (void*)&show_status }, "show status", "" },
3065 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&workaround_bugs }, "workaround bugs", "" },
3066 { "fast", OPT_BOOL | OPT_EXPERT, { (void*)&fast }, "non spec compliant optimizations", "" },
3067 { "genpts", OPT_BOOL | OPT_EXPERT, { (void*)&genpts }, "generate pts", "" },
3068 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3069 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&lowres }, "", "" },
3070 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_loop_filter }, "", "" },
3071 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_frame }, "", "" },
3072 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_idct }, "", "" },
3073 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&idct }, "set idct algo", "algo" },
3074 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&error_recognition }, "set error detection threshold (0-4)", "threshold" },
3075 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&error_concealment }, "set error concealment options", "bit_mask" },
3076 { "sync", HAS_ARG | OPT_EXPERT, { (void*)opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
3077 { "autoexit", OPT_BOOL | OPT_EXPERT, { (void*)&autoexit }, "exit at the end", "" },
3078 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_keydown }, "exit on key down", "" },
3079 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_mousedown }, "exit on mouse down", "" },
3080 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&loop }, "set number of times the playback shall be looped", "loop count" },
3081 { "framedrop", OPT_BOOL | OPT_EXPERT, { (void*)&framedrop }, "drop frames when cpu is too slow", "" },
3082 { "window_title", OPT_STRING | HAS_ARG, { (void*)&window_title }, "set window title", "window title" },
3084 { "vf", OPT_STRING | HAS_ARG, { (void*)&vfilters }, "video filters", "filter list" },
3086 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { (void*)&rdftspeed }, "rdft speed", "msecs" },
3087 { "showmode", HAS_ARG, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
3088 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { (void*)opt_default }, "generic catch all option", "" },
3089 { "i", OPT_BOOL, {(void *)&dummy}, "read specified file", "input_file"},
3090 { "codec", HAS_ARG | OPT_FUNC2, {(void*)opt_codec}, "force decoder", "decoder" },
3094 static void show_usage(void)
3096 av_log(NULL, AV_LOG_INFO, "Simple media player\n");
3097 av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name);
3098 av_log(NULL, AV_LOG_INFO, "\n");
3101 static int opt_help(const char *opt, const char *arg)
3103 av_log_set_callback(log_callback_help);
3105 show_help_options(options, "Main options:\n",
3107 show_help_options(options, "\nAdvanced options:\n",
3108 OPT_EXPERT, OPT_EXPERT);
3110 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3111 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3112 #if !CONFIG_AVFILTER
3113 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3115 printf("\nWhile playing:\n"
3117 "f toggle full screen\n"
3119 "a cycle audio channel\n"
3120 "v cycle video channel\n"
3121 "t cycle subtitle channel\n"
3122 "w show audio waves\n"
3123 "s activate frame-step mode\n"
3124 "left/right seek backward/forward 10 seconds\n"
3125 "down/up seek backward/forward 1 minute\n"
3126 "page down/page up seek backward/forward 10 minutes\n"
3127 "mouse click seek to percentage in file corresponding to fraction of width\n"
3132 static int lockmgr(void **mtx, enum AVLockOp op)
3135 case AV_LOCK_CREATE:
3136 *mtx = SDL_CreateMutex();
3140 case AV_LOCK_OBTAIN:
3141 return !!SDL_LockMutex(*mtx);
3142 case AV_LOCK_RELEASE:
3143 return !!SDL_UnlockMutex(*mtx);
3144 case AV_LOCK_DESTROY:
3145 SDL_DestroyMutex(*mtx);
3151 /* Called from the main */
3152 int main(int argc, char **argv)
3157 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3158 parse_loglevel(argc, argv, options);
3160 /* register all codecs, demux and protocols */
3161 avcodec_register_all();
3163 avdevice_register_all();
3166 avfilter_register_all();
3169 avformat_network_init();
3173 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
3174 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
3176 show_banner(argc, argv, options);
3178 parse_options(NULL, argc, argv, options, opt_input_file);
3180 if (!input_filename) {
3182 fprintf(stderr, "An input file must be specified\n");
3183 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3187 if (display_disable) {
3190 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3192 flags &= ~SDL_INIT_AUDIO;
3193 #if !defined(__MINGW32__) && !defined(__APPLE__)
3194 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3196 if (SDL_Init (flags)) {
3197 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3198 fprintf(stderr, "(Did you set the DISPLAY variable?)\n");
3202 if (!display_disable) {
3203 #if HAVE_SDL_VIDEO_SIZE
3204 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3205 fs_screen_width = vi->current_w;
3206 fs_screen_height = vi->current_h;
3210 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3211 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3212 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3214 if (av_lockmgr_register(lockmgr)) {
3215 fprintf(stderr, "Could not initialize lock manager!\n");
3219 av_init_packet(&flush_pkt);
3220 flush_pkt.data = "FLUSH";
3222 is = stream_open(input_filename, file_iformat);
3224 fprintf(stderr, "Failed to initialize VideoState!\n");