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 "libavutil/time.h"
41 #include "libavformat/avformat.h"
42 #include "libavdevice/avdevice.h"
43 #include "libswscale/swscale.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"
53 # include "libavfilter/buffersrc.h"
57 #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)
69 /* SDL audio buffer size, in samples. Should be small to have precise
70 A/V sync as SDL does not have hardware buffer fullness info. */
71 #define SDL_AUDIO_BUFFER_SIZE 1024
73 /* no AV sync correction is done if below the AV sync threshold */
74 #define AV_SYNC_THRESHOLD 0.01
75 /* no AV correction is done if too big error */
76 #define AV_NOSYNC_THRESHOLD 10.0
78 /* maximum audio speed change to get correct sync */
79 #define SAMPLE_CORRECTION_PERCENT_MAX 10
81 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
82 #define AUDIO_DIFF_AVG_NB 20
84 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
85 #define SAMPLE_ARRAY_SIZE (2 * 65536)
87 static int sws_flags = SWS_BICUBIC;
89 typedef struct PacketQueue {
90 AVPacketList *first_pkt, *last_pkt;
98 #define VIDEO_PICTURE_QUEUE_SIZE 2
99 #define SUBPICTURE_QUEUE_SIZE 4
101 typedef struct VideoPicture {
102 double pts; ///< presentation time stamp for this picture
103 int64_t pos; ///< byte position in file
106 int width, height; /* source height & width */
107 AVRational sample_aspect_ratio;
112 AVFilterBufferRef *picref;
116 typedef struct SubPicture {
117 double pts; /* presentation time stamp for this picture */
121 typedef struct AudioParams {
125 enum AVSampleFormat fmt;
129 AV_SYNC_AUDIO_MASTER, /* default choice */
130 AV_SYNC_VIDEO_MASTER,
131 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
134 typedef struct VideoState {
135 SDL_Thread *read_tid;
136 SDL_Thread *video_tid;
137 SDL_Thread *refresh_tid;
138 AVInputFormat *iformat;
144 int que_attachments_req;
149 int read_pause_return;
155 double external_clock; /* external clock base */
156 int64_t external_clock_time;
159 double audio_diff_cum; /* used for AV difference average computation */
160 double audio_diff_avg_coef;
161 double audio_diff_threshold;
162 int audio_diff_avg_count;
165 int audio_hw_buf_size;
166 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[AVCODEC_MAX_AUDIO_FRAME_SIZE * 4];
167 uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
170 unsigned int audio_buf_size; /* in bytes */
171 int audio_buf_index; /* in bytes */
172 int audio_write_buf_size;
173 AVPacket audio_pkt_temp;
175 struct AudioParams audio_src;
176 struct AudioParams audio_tgt;
177 struct SwrContext *swr_ctx;
178 double audio_current_pts;
179 double audio_current_pts_drift;
180 int frame_drops_early;
181 int frame_drops_late;
185 SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
187 int16_t sample_array[SAMPLE_ARRAY_SIZE];
188 int sample_array_index;
192 FFTSample *rdft_data;
195 SDL_Thread *subtitle_tid;
197 int subtitle_stream_changed;
198 AVStream *subtitle_st;
199 PacketQueue subtitleq;
200 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
201 int subpq_size, subpq_rindex, subpq_windex;
202 SDL_mutex *subpq_mutex;
203 SDL_cond *subpq_cond;
206 double frame_last_pts;
207 double frame_last_duration;
208 double frame_last_dropped_pts;
209 double frame_last_returned_time;
210 double frame_last_filter_delay;
211 int64_t frame_last_dropped_pos;
212 double video_clock; ///< pts of last decoded frame / predicted pts of next decoded frame
216 double video_current_pts; ///< current displayed pts (different from video_clock if frame fifos are used)
217 double video_current_pts_drift; ///< video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
218 int64_t video_current_pos; ///< current displayed file pos
219 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
220 int pictq_size, pictq_rindex, pictq_windex;
221 SDL_mutex *pictq_mutex;
222 SDL_cond *pictq_cond;
224 struct SwsContext *img_convert_ctx;
228 int width, height, xleft, ytop;
232 AVFilterContext *in_video_filter; ///< the first filter in the video chain
233 AVFilterContext *out_video_filter; ///< the last filter in the video chain
235 FrameBuffer *buffer_pool;
239 int last_video_stream, last_audio_stream, last_subtitle_stream;
242 typedef struct AllocEventProps {
247 static int show_help(const char *opt, const char *arg);
249 /* options specified by the user */
250 static AVInputFormat *file_iformat;
251 static const char *input_filename;
252 static const char *window_title;
253 static int fs_screen_width;
254 static int fs_screen_height;
255 static int screen_width = 0;
256 static int screen_height = 0;
257 static int audio_disable;
258 static int video_disable;
259 static int wanted_stream[AVMEDIA_TYPE_NB] = {
260 [AVMEDIA_TYPE_AUDIO] = -1,
261 [AVMEDIA_TYPE_VIDEO] = -1,
262 [AVMEDIA_TYPE_SUBTITLE] = -1,
264 static int seek_by_bytes = -1;
265 static int display_disable;
266 static int show_status = 1;
267 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
268 static int64_t start_time = AV_NOPTS_VALUE;
269 static int64_t duration = AV_NOPTS_VALUE;
270 static int workaround_bugs = 1;
272 static int genpts = 0;
273 static int lowres = 0;
274 static int idct = FF_IDCT_AUTO;
275 static enum AVDiscard skip_frame = AVDISCARD_DEFAULT;
276 static enum AVDiscard skip_idct = AVDISCARD_DEFAULT;
277 static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT;
278 static int error_concealment = 3;
279 static int decoder_reorder_pts = -1;
281 static int exit_on_keydown;
282 static int exit_on_mousedown;
284 static int framedrop = -1;
285 static int infinite_buffer = 0;
286 static enum ShowMode show_mode = SHOW_MODE_NONE;
287 static const char *audio_codec_name;
288 static const char *subtitle_codec_name;
289 static const char *video_codec_name;
290 static int rdftspeed = 20;
292 static char *vfilters = NULL;
295 /* current context */
296 static int is_full_screen;
297 static int64_t audio_callback_time;
299 static AVPacket flush_pkt;
301 #define FF_ALLOC_EVENT (SDL_USEREVENT)
302 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
303 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
305 static SDL_Surface *screen;
307 void av_noreturn exit_program(int ret)
312 static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt)
316 if (q->abort_request)
319 pkt1 = av_malloc(sizeof(AVPacketList));
328 q->last_pkt->next = pkt1;
331 q->size += pkt1->pkt.size + sizeof(*pkt1);
332 /* XXX: should duplicate packet data in DV case */
333 SDL_CondSignal(q->cond);
337 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
341 /* duplicate the packet */
342 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
345 SDL_LockMutex(q->mutex);
346 ret = packet_queue_put_private(q, pkt);
347 SDL_UnlockMutex(q->mutex);
349 if (pkt != &flush_pkt && ret < 0)
355 /* packet queue handling */
356 static void packet_queue_init(PacketQueue *q)
358 memset(q, 0, sizeof(PacketQueue));
359 q->mutex = SDL_CreateMutex();
360 q->cond = SDL_CreateCond();
361 q->abort_request = 1;
364 static void packet_queue_flush(PacketQueue *q)
366 AVPacketList *pkt, *pkt1;
368 SDL_LockMutex(q->mutex);
369 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
371 av_free_packet(&pkt->pkt);
378 SDL_UnlockMutex(q->mutex);
381 static void packet_queue_destroy(PacketQueue *q)
383 packet_queue_flush(q);
384 SDL_DestroyMutex(q->mutex);
385 SDL_DestroyCond(q->cond);
388 static void packet_queue_abort(PacketQueue *q)
390 SDL_LockMutex(q->mutex);
392 q->abort_request = 1;
394 SDL_CondSignal(q->cond);
396 SDL_UnlockMutex(q->mutex);
399 static void packet_queue_start(PacketQueue *q)
401 SDL_LockMutex(q->mutex);
402 q->abort_request = 0;
403 packet_queue_put_private(q, &flush_pkt);
404 SDL_UnlockMutex(q->mutex);
407 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
408 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
413 SDL_LockMutex(q->mutex);
416 if (q->abort_request) {
423 q->first_pkt = pkt1->next;
427 q->size -= pkt1->pkt.size + sizeof(*pkt1);
436 SDL_CondWait(q->cond, q->mutex);
439 SDL_UnlockMutex(q->mutex);
443 static inline void fill_rectangle(SDL_Surface *screen,
444 int x, int y, int w, int h, int color)
451 SDL_FillRect(screen, &rect, color);
454 #define ALPHA_BLEND(a, oldp, newp, s)\
455 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
457 #define RGBA_IN(r, g, b, a, s)\
459 unsigned int v = ((const uint32_t *)(s))[0];\
460 a = (v >> 24) & 0xff;\
461 r = (v >> 16) & 0xff;\
462 g = (v >> 8) & 0xff;\
466 #define YUVA_IN(y, u, v, a, s, pal)\
468 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
469 a = (val >> 24) & 0xff;\
470 y = (val >> 16) & 0xff;\
471 u = (val >> 8) & 0xff;\
475 #define YUVA_OUT(d, y, u, v, a)\
477 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
483 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
485 int wrap, wrap3, width2, skip2;
486 int y, u, v, a, u1, v1, a1, w, h;
487 uint8_t *lum, *cb, *cr;
490 int dstx, dsty, dstw, dsth;
492 dstw = av_clip(rect->w, 0, imgw);
493 dsth = av_clip(rect->h, 0, imgh);
494 dstx = av_clip(rect->x, 0, imgw - dstw);
495 dsty = av_clip(rect->y, 0, imgh - dsth);
496 lum = dst->data[0] + dsty * dst->linesize[0];
497 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
498 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
500 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
502 wrap = dst->linesize[0];
503 wrap3 = rect->pict.linesize[0];
504 p = rect->pict.data[0];
505 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
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);
522 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
523 YUVA_IN(y, u, v, a, p, pal);
527 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
529 YUVA_IN(y, u, v, a, p + BPP, pal);
533 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
534 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
535 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
542 YUVA_IN(y, u, v, a, p, pal);
543 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
544 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
545 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
549 p += wrap3 - dstw * BPP;
550 lum += wrap - dstw - dstx;
551 cb += dst->linesize[1] - width2 - skip2;
552 cr += dst->linesize[2] - width2 - skip2;
554 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
560 YUVA_IN(y, u, v, a, p, pal);
564 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
567 YUVA_IN(y, u, v, a, p, pal);
571 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
572 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
573 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
579 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
580 YUVA_IN(y, u, v, a, p, pal);
584 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
586 YUVA_IN(y, u, v, a, p + BPP, pal);
590 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
594 YUVA_IN(y, u, v, a, p, pal);
598 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
600 YUVA_IN(y, u, v, a, p + BPP, pal);
604 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
606 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
607 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
611 p += -wrap3 + 2 * BPP;
615 YUVA_IN(y, u, v, a, p, pal);
619 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
622 YUVA_IN(y, u, v, a, p, pal);
626 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
627 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
628 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
634 p += wrap3 + (wrap3 - dstw * BPP);
635 lum += wrap + (wrap - dstw - dstx);
636 cb += dst->linesize[1] - width2 - skip2;
637 cr += dst->linesize[2] - width2 - skip2;
639 /* handle odd height */
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);
655 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
656 YUVA_IN(y, u, v, a, p, pal);
660 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
662 YUVA_IN(y, u, v, a, p + BPP, pal);
666 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
667 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
668 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
675 YUVA_IN(y, u, v, a, p, pal);
676 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
677 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
678 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
683 static void free_subpicture(SubPicture *sp)
685 avsubtitle_free(&sp->sub);
688 static void video_image_display(VideoState *is)
694 int width, height, x, y;
698 vp = &is->pictq[is->pictq_rindex];
700 if (vp->sample_aspect_ratio.num == 0)
703 aspect_ratio = av_q2d(vp->sample_aspect_ratio);
705 if (aspect_ratio <= 0.0)
707 aspect_ratio *= (float)vp->width / (float)vp->height;
709 if (is->subtitle_st) {
710 if (is->subpq_size > 0) {
711 sp = &is->subpq[is->subpq_rindex];
713 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
714 SDL_LockYUVOverlay (vp->bmp);
716 pict.data[0] = vp->bmp->pixels[0];
717 pict.data[1] = vp->bmp->pixels[2];
718 pict.data[2] = vp->bmp->pixels[1];
720 pict.linesize[0] = vp->bmp->pitches[0];
721 pict.linesize[1] = vp->bmp->pitches[2];
722 pict.linesize[2] = vp->bmp->pitches[1];
724 for (i = 0; i < sp->sub.num_rects; i++)
725 blend_subrect(&pict, sp->sub.rects[i],
726 vp->bmp->w, vp->bmp->h);
728 SDL_UnlockYUVOverlay (vp->bmp);
734 /* XXX: we suppose the screen has a 1.0 pixel ratio */
736 width = ((int)rint(height * aspect_ratio)) & ~1;
737 if (width > is->width) {
739 height = ((int)rint(width / aspect_ratio)) & ~1;
741 x = (is->width - width) / 2;
742 y = (is->height - height) / 2;
743 is->no_background = 0;
744 rect.x = is->xleft + x;
745 rect.y = is->ytop + y;
746 rect.w = FFMAX(width, 1);
747 rect.h = FFMAX(height, 1);
748 SDL_DisplayYUVOverlay(vp->bmp, &rect);
752 static inline int compute_mod(int a, int b)
754 return a < 0 ? a%b + b : a%b;
757 static void video_audio_display(VideoState *s)
759 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
760 int ch, channels, h, h2, bgcolor, fgcolor;
762 int rdft_bits, nb_freq;
764 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
766 nb_freq = 1 << (rdft_bits - 1);
768 /* compute display index : center on currently output samples */
769 channels = s->audio_tgt.channels;
770 nb_display_channels = channels;
772 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
774 delay = s->audio_write_buf_size;
777 /* to be more precise, we take into account the time spent since
778 the last buffer computation */
779 if (audio_callback_time) {
780 time_diff = av_gettime() - audio_callback_time;
781 delay -= (time_diff * s->audio_tgt.freq) / 1000000;
784 delay += 2 * data_used;
785 if (delay < data_used)
788 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
789 if (s->show_mode == SHOW_MODE_WAVES) {
791 for (i = 0; i < 1000; i += channels) {
792 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
793 int a = s->sample_array[idx];
794 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
795 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
796 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
798 if (h < score && (b ^ c) < 0) {
805 s->last_i_start = i_start;
807 i_start = s->last_i_start;
810 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
811 if (s->show_mode == SHOW_MODE_WAVES) {
812 fill_rectangle(screen,
813 s->xleft, s->ytop, s->width, s->height,
816 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
818 /* total height for one channel */
819 h = s->height / nb_display_channels;
820 /* graph height / 2 */
822 for (ch = 0; ch < nb_display_channels; ch++) {
824 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
825 for (x = 0; x < s->width; x++) {
826 y = (s->sample_array[i] * h2) >> 15;
833 fill_rectangle(screen,
834 s->xleft + x, ys, 1, y,
837 if (i >= SAMPLE_ARRAY_SIZE)
838 i -= SAMPLE_ARRAY_SIZE;
842 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
844 for (ch = 1; ch < nb_display_channels; ch++) {
845 y = s->ytop + ch * h;
846 fill_rectangle(screen,
847 s->xleft, y, s->width, 1,
850 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
852 nb_display_channels= FFMIN(nb_display_channels, 2);
853 if (rdft_bits != s->rdft_bits) {
854 av_rdft_end(s->rdft);
855 av_free(s->rdft_data);
856 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
857 s->rdft_bits = rdft_bits;
858 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
862 for (ch = 0; ch < nb_display_channels; ch++) {
863 data[ch] = s->rdft_data + 2 * nb_freq * ch;
865 for (x = 0; x < 2 * nb_freq; x++) {
866 double w = (x-nb_freq) * (1.0 / nb_freq);
867 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
869 if (i >= SAMPLE_ARRAY_SIZE)
870 i -= SAMPLE_ARRAY_SIZE;
872 av_rdft_calc(s->rdft, data[ch]);
874 // least efficient way to do this, we should of course directly access it but its more than fast enough
875 for (y = 0; y < s->height; y++) {
876 double w = 1 / sqrt(nb_freq);
877 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]));
878 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
879 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
882 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
884 fill_rectangle(screen,
885 s->xpos, s->height-y, 1, 1,
889 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
892 if (s->xpos >= s->width)
897 static void stream_close(VideoState *is)
901 /* XXX: use a special url_shutdown call to abort parse cleanly */
902 is->abort_request = 1;
903 SDL_WaitThread(is->read_tid, NULL);
904 SDL_WaitThread(is->refresh_tid, NULL);
905 packet_queue_destroy(&is->videoq);
906 packet_queue_destroy(&is->audioq);
907 packet_queue_destroy(&is->subtitleq);
909 /* free all pictures */
910 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
913 avfilter_unref_bufferp(&vp->picref);
916 SDL_FreeYUVOverlay(vp->bmp);
920 SDL_DestroyMutex(is->pictq_mutex);
921 SDL_DestroyCond(is->pictq_cond);
922 SDL_DestroyMutex(is->subpq_mutex);
923 SDL_DestroyCond(is->subpq_cond);
925 if (is->img_convert_ctx)
926 sws_freeContext(is->img_convert_ctx);
931 static void do_exit(VideoState *is)
936 av_lockmgr_register(NULL);
941 avformat_network_deinit();
945 av_log(NULL, AV_LOG_QUIET, "%s", "");
949 static void sigterm_handler(int sig)
954 static int video_open(VideoState *is, int force_set_video_mode)
956 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
958 VideoPicture *vp = &is->pictq[is->pictq_rindex];
960 if (is_full_screen) flags |= SDL_FULLSCREEN;
961 else flags |= SDL_RESIZABLE;
963 if (is_full_screen && fs_screen_width) {
965 h = fs_screen_height;
966 } else if (!is_full_screen && screen_width) {
969 } else if (vp->width) {
976 if (screen && is->width == screen->w && screen->w == w
977 && is->height== screen->h && screen->h == h && !force_set_video_mode)
979 screen = SDL_SetVideoMode(w, h, 0, flags);
981 fprintf(stderr, "SDL: could not set video mode - exiting\n");
985 window_title = input_filename;
986 SDL_WM_SetCaption(window_title, window_title);
988 is->width = screen->w;
989 is->height = screen->h;
994 /* display the current picture, if any */
995 static void video_display(VideoState *is)
999 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
1000 video_audio_display(is);
1001 else if (is->video_st)
1002 video_image_display(is);
1005 static int refresh_thread(void *opaque)
1007 VideoState *is= opaque;
1008 while (!is->abort_request) {
1010 event.type = FF_REFRESH_EVENT;
1011 event.user.data1 = opaque;
1012 if (!is->refresh && (!is->paused || is->force_refresh)) {
1014 SDL_PushEvent(&event);
1016 //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
1017 av_usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
1022 /* get the current audio clock value */
1023 static double get_audio_clock(VideoState *is)
1026 return is->audio_current_pts;
1028 return is->audio_current_pts_drift + av_gettime() / 1000000.0;
1032 /* get the current video clock value */
1033 static double get_video_clock(VideoState *is)
1036 return is->video_current_pts;
1038 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1042 /* get the current external clock value */
1043 static double get_external_clock(VideoState *is)
1047 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1050 /* get the current master clock value */
1051 static double get_master_clock(VideoState *is)
1055 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1057 val = get_video_clock(is);
1059 val = get_audio_clock(is);
1060 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1062 val = get_audio_clock(is);
1064 val = get_video_clock(is);
1066 val = get_external_clock(is);
1071 /* seek in the stream */
1072 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1074 if (!is->seek_req) {
1077 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1079 is->seek_flags |= AVSEEK_FLAG_BYTE;
1084 /* pause or resume the video */
1085 static void stream_toggle_pause(VideoState *is)
1088 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1089 if (is->read_pause_return != AVERROR(ENOSYS)) {
1090 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1092 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1094 is->paused = !is->paused;
1097 static double compute_target_delay(double delay, VideoState *is)
1099 double sync_threshold, diff;
1101 /* update delay to follow master synchronisation source */
1102 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1103 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1104 /* if video is slave, we try to correct big delays by
1105 duplicating or deleting a frame */
1106 diff = get_video_clock(is) - get_master_clock(is);
1108 /* skip or repeat frame. We take into account the
1109 delay to compute the threshold. I still don't know
1110 if it is the best guess */
1111 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1112 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1113 if (diff <= -sync_threshold)
1115 else if (diff >= sync_threshold)
1120 av_dlog(NULL, "video: delay=%0.3f A-V=%f\n",
1126 static void pictq_next_picture(VideoState *is) {
1127 /* update queue size and signal for next picture */
1128 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1129 is->pictq_rindex = 0;
1131 SDL_LockMutex(is->pictq_mutex);
1133 SDL_CondSignal(is->pictq_cond);
1134 SDL_UnlockMutex(is->pictq_mutex);
1137 static void update_video_pts(VideoState *is, double pts, int64_t pos) {
1138 double time = av_gettime() / 1000000.0;
1139 /* update current video pts */
1140 is->video_current_pts = pts;
1141 is->video_current_pts_drift = is->video_current_pts - time;
1142 is->video_current_pos = pos;
1143 is->frame_last_pts = pts;
1146 /* called to display each frame */
1147 static void video_refresh(void *opaque)
1149 VideoState *is = opaque;
1153 SubPicture *sp, *sp2;
1157 if (is->pictq_size == 0) {
1158 SDL_LockMutex(is->pictq_mutex);
1159 if (is->frame_last_dropped_pts != AV_NOPTS_VALUE && is->frame_last_dropped_pts > is->frame_last_pts) {
1160 update_video_pts(is, is->frame_last_dropped_pts, is->frame_last_dropped_pos);
1161 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1163 SDL_UnlockMutex(is->pictq_mutex);
1164 // nothing to do, no picture to display in the que
1166 double last_duration, duration, delay;
1167 /* dequeue the picture */
1168 vp = &is->pictq[is->pictq_rindex];
1171 pictq_next_picture(is);
1178 /* compute nominal last_duration */
1179 last_duration = vp->pts - is->frame_last_pts;
1180 if (last_duration > 0 && last_duration < 10.0) {
1181 /* if duration of the last frame was sane, update last_duration in video state */
1182 is->frame_last_duration = last_duration;
1184 delay = compute_target_delay(is->frame_last_duration, is);
1186 time= av_gettime()/1000000.0;
1187 if (time < is->frame_timer + delay)
1191 is->frame_timer += delay * FFMAX(1, floor((time-is->frame_timer) / delay));
1193 SDL_LockMutex(is->pictq_mutex);
1194 update_video_pts(is, vp->pts, vp->pos);
1195 SDL_UnlockMutex(is->pictq_mutex);
1197 if (is->pictq_size > 1) {
1198 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1199 duration = nextvp->pts - vp->pts;
1200 if((framedrop>0 || (framedrop && is->audio_st)) && time > is->frame_timer + duration){
1201 is->frame_drops_late++;
1202 pictq_next_picture(is);
1207 if (is->subtitle_st) {
1208 if (is->subtitle_stream_changed) {
1209 SDL_LockMutex(is->subpq_mutex);
1211 while (is->subpq_size) {
1212 free_subpicture(&is->subpq[is->subpq_rindex]);
1214 /* update queue size and signal for next picture */
1215 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1216 is->subpq_rindex = 0;
1220 is->subtitle_stream_changed = 0;
1222 SDL_CondSignal(is->subpq_cond);
1223 SDL_UnlockMutex(is->subpq_mutex);
1225 if (is->subpq_size > 0) {
1226 sp = &is->subpq[is->subpq_rindex];
1228 if (is->subpq_size > 1)
1229 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1233 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1234 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1236 free_subpicture(sp);
1238 /* update queue size and signal for next picture */
1239 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1240 is->subpq_rindex = 0;
1242 SDL_LockMutex(is->subpq_mutex);
1244 SDL_CondSignal(is->subpq_cond);
1245 SDL_UnlockMutex(is->subpq_mutex);
1252 /* display picture */
1253 if (!display_disable)
1257 pictq_next_picture(is);
1259 } else if (is->audio_st) {
1260 /* draw the next audio frame */
1262 /* if only audio stream, then display the audio bars (better
1263 than nothing, just to test the implementation */
1265 /* display picture */
1266 if (!display_disable)
1269 is->force_refresh = 0;
1271 static int64_t last_time;
1273 int aqsize, vqsize, sqsize;
1276 cur_time = av_gettime();
1277 if (!last_time || (cur_time - last_time) >= 30000) {
1282 aqsize = is->audioq.size;
1284 vqsize = is->videoq.size;
1285 if (is->subtitle_st)
1286 sqsize = is->subtitleq.size;
1288 if (is->audio_st && is->video_st)
1289 av_diff = get_audio_clock(is) - get_video_clock(is);
1290 printf("%7.2f A-V:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1291 get_master_clock(is),
1293 is->frame_drops_early + is->frame_drops_late,
1297 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1298 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1300 last_time = cur_time;
1305 /* allocate a picture (needs to do that in main thread to avoid
1306 potential locking problems */
1307 static void alloc_picture(AllocEventProps *event_props)
1309 VideoState *is = event_props->is;
1310 AVFrame *frame = event_props->frame;
1313 vp = &is->pictq[is->pictq_windex];
1316 SDL_FreeYUVOverlay(vp->bmp);
1319 avfilter_unref_bufferp(&vp->picref);
1322 vp->width = frame->width;
1323 vp->height = frame->height;
1325 video_open(event_props->is, 0);
1327 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1330 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1331 /* SDL allocates a buffer smaller than requested if the video
1332 * overlay hardware is unable to support the requested size. */
1333 fprintf(stderr, "Error: the video system does not support an image\n"
1334 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1335 "to reduce the image size.\n", vp->width, vp->height );
1339 SDL_LockMutex(is->pictq_mutex);
1341 SDL_CondSignal(is->pictq_cond);
1342 SDL_UnlockMutex(is->pictq_mutex);
1345 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1348 double frame_delay, pts = pts1;
1350 /* compute the exact PTS for the picture if it is omitted in the stream
1351 * pts1 is the dts of the pkt / pts of the frame */
1353 /* update video clock with pts, if present */
1354 is->video_clock = pts;
1356 pts = is->video_clock;
1358 /* update video clock for next frame */
1359 frame_delay = av_q2d(is->video_st->codec->time_base);
1360 /* for MPEG2, the frame can be repeated, so we update the
1361 clock accordingly */
1362 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1363 is->video_clock += frame_delay;
1365 #if defined(DEBUG_SYNC) && 0
1366 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1367 av_get_picture_type_char(src_frame->pict_type), pts, pts1);
1370 /* wait until we have space to put a new picture */
1371 SDL_LockMutex(is->pictq_mutex);
1373 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1374 !is->videoq.abort_request) {
1375 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1377 SDL_UnlockMutex(is->pictq_mutex);
1379 if (is->videoq.abort_request)
1382 vp = &is->pictq[is->pictq_windex];
1384 /* alloc or resize hardware picture buffer */
1385 if (!vp->bmp || vp->reallocate ||
1386 vp->width != src_frame->width ||
1387 vp->height != src_frame->height) {
1389 AllocEventProps event_props;
1391 event_props.frame = src_frame;
1392 event_props.is = is;
1397 /* the allocation must be done in the main thread to avoid
1398 locking problems. We wait in this block for the event to complete,
1399 so we can pass a pointer to event_props to it. */
1400 event.type = FF_ALLOC_EVENT;
1401 event.user.data1 = &event_props;
1402 SDL_PushEvent(&event);
1404 /* wait until the picture is allocated */
1405 SDL_LockMutex(is->pictq_mutex);
1406 while (!vp->allocated && !is->videoq.abort_request) {
1407 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1409 /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */
1410 if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) {
1411 while (!vp->allocated) {
1412 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1415 SDL_UnlockMutex(is->pictq_mutex);
1417 if (is->videoq.abort_request)
1421 /* if the frame is not skipped, then display it */
1423 AVPicture pict = { { 0 } };
1425 avfilter_unref_bufferp(&vp->picref);
1426 vp->picref = src_frame->opaque;
1429 /* get a pointer on the bitmap */
1430 SDL_LockYUVOverlay (vp->bmp);
1432 pict.data[0] = vp->bmp->pixels[0];
1433 pict.data[1] = vp->bmp->pixels[2];
1434 pict.data[2] = vp->bmp->pixels[1];
1436 pict.linesize[0] = vp->bmp->pitches[0];
1437 pict.linesize[1] = vp->bmp->pitches[2];
1438 pict.linesize[2] = vp->bmp->pitches[1];
1441 // FIXME use direct rendering
1442 av_picture_copy(&pict, (AVPicture *)src_frame,
1443 src_frame->format, vp->width, vp->height);
1444 vp->sample_aspect_ratio = vp->picref->video->sample_aspect_ratio;
1446 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1447 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1448 vp->width, vp->height, src_frame->format, vp->width, vp->height,
1449 PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1450 if (is->img_convert_ctx == NULL) {
1451 fprintf(stderr, "Cannot initialize the conversion context\n");
1454 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1455 0, vp->height, pict.data, pict.linesize);
1456 vp->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, src_frame);
1458 /* update the bitmap content */
1459 SDL_UnlockYUVOverlay(vp->bmp);
1465 /* now we can update the picture count */
1466 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1467 is->pictq_windex = 0;
1468 SDL_LockMutex(is->pictq_mutex);
1470 SDL_UnlockMutex(is->pictq_mutex);
1475 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1479 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1482 if (pkt->data == flush_pkt.data) {
1483 avcodec_flush_buffers(is->video_st->codec);
1485 SDL_LockMutex(is->pictq_mutex);
1486 // Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1487 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1488 is->pictq[i].skip = 1;
1490 while (is->pictq_size && !is->videoq.abort_request) {
1491 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1493 is->video_current_pos = -1;
1494 is->frame_last_pts = AV_NOPTS_VALUE;
1495 is->frame_last_duration = 0;
1496 is->frame_timer = (double)av_gettime() / 1000000.0;
1497 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1498 SDL_UnlockMutex(is->pictq_mutex);
1503 if(avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt) < 0)
1509 if (decoder_reorder_pts == -1) {
1510 *pts = av_frame_get_best_effort_timestamp(frame);
1511 } else if (decoder_reorder_pts) {
1512 *pts = frame->pkt_pts;
1514 *pts = frame->pkt_dts;
1517 if (*pts == AV_NOPTS_VALUE) {
1521 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) || is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK) &&
1522 (framedrop>0 || (framedrop && is->audio_st))) {
1523 SDL_LockMutex(is->pictq_mutex);
1524 if (is->frame_last_pts != AV_NOPTS_VALUE && *pts) {
1525 double clockdiff = get_video_clock(is) - get_master_clock(is);
1526 double dpts = av_q2d(is->video_st->time_base) * *pts;
1527 double ptsdiff = dpts - is->frame_last_pts;
1528 if (fabs(clockdiff) < AV_NOSYNC_THRESHOLD &&
1529 ptsdiff > 0 && ptsdiff < AV_NOSYNC_THRESHOLD &&
1530 clockdiff + ptsdiff - is->frame_last_filter_delay < 0) {
1531 is->frame_last_dropped_pos = pkt->pos;
1532 is->frame_last_dropped_pts = dpts;
1533 is->frame_drops_early++;
1537 SDL_UnlockMutex(is->pictq_mutex);
1546 static int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph,
1547 AVFilterContext *source_ctx, AVFilterContext *sink_ctx)
1550 AVFilterInOut *outputs = NULL, *inputs = NULL;
1553 outputs = avfilter_inout_alloc();
1554 inputs = avfilter_inout_alloc();
1555 if (!outputs || !inputs) {
1556 ret = AVERROR(ENOMEM);
1560 outputs->name = av_strdup("in");
1561 outputs->filter_ctx = source_ctx;
1562 outputs->pad_idx = 0;
1563 outputs->next = NULL;
1565 inputs->name = av_strdup("out");
1566 inputs->filter_ctx = sink_ctx;
1567 inputs->pad_idx = 0;
1568 inputs->next = NULL;
1570 if ((ret = avfilter_graph_parse(graph, filtergraph, &inputs, &outputs, NULL)) < 0)
1573 if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0)
1577 return avfilter_graph_config(graph, NULL);
1579 avfilter_inout_free(&outputs);
1580 avfilter_inout_free(&inputs);
1584 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1586 static const enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
1587 char sws_flags_str[128];
1588 char buffersrc_args[256];
1590 AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
1591 AVFilterContext *filt_src = NULL, *filt_out = NULL, *filt_format;
1592 AVCodecContext *codec = is->video_st->codec;
1594 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1595 graph->scale_sws_opts = av_strdup(sws_flags_str);
1597 snprintf(buffersrc_args, sizeof(buffersrc_args),
1598 "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
1599 codec->width, codec->height, codec->pix_fmt,
1600 is->video_st->time_base.num, is->video_st->time_base.den,
1601 codec->sample_aspect_ratio.num, codec->sample_aspect_ratio.den);
1603 if ((ret = avfilter_graph_create_filter(&filt_src,
1604 avfilter_get_by_name("buffer"),
1605 "ffplay_buffer", buffersrc_args, NULL,
1609 buffersink_params->pixel_fmts = pix_fmts;
1610 ret = avfilter_graph_create_filter(&filt_out,
1611 avfilter_get_by_name("buffersink"),
1612 "ffplay_buffersink", NULL, buffersink_params, graph);
1613 av_freep(&buffersink_params);
1617 if ((ret = avfilter_graph_create_filter(&filt_format,
1618 avfilter_get_by_name("format"),
1619 "format", "yuv420p", NULL, graph)) < 0)
1621 if ((ret = avfilter_link(filt_format, 0, filt_out, 0)) < 0)
1624 if ((ret = configure_filtergraph(graph, vfilters, filt_src, filt_format)) < 0)
1627 is->in_video_filter = filt_src;
1628 is->out_video_filter = filt_out;
1633 #endif /* CONFIG_AVFILTER */
1635 static int video_thread(void *arg)
1637 AVPacket pkt = { 0 };
1638 VideoState *is = arg;
1639 AVFrame *frame = avcodec_alloc_frame();
1640 int64_t pts_int = AV_NOPTS_VALUE, pos = -1;
1645 AVCodecContext *codec = is->video_st->codec;
1646 AVFilterGraph *graph = avfilter_graph_alloc();
1647 AVFilterContext *filt_out = NULL, *filt_in = NULL;
1650 enum PixelFormat last_format = -2;
1652 if (codec->codec->capabilities & CODEC_CAP_DR1) {
1654 codec->get_buffer = codec_get_buffer;
1655 codec->release_buffer = codec_release_buffer;
1656 codec->opaque = &is->buffer_pool;
1662 AVFilterBufferRef *picref;
1665 while (is->paused && !is->videoq.abort_request)
1668 avcodec_get_frame_defaults(frame);
1669 av_free_packet(&pkt);
1671 ret = get_video_frame(is, frame, &pts_int, &pkt);
1679 if ( last_w != is->video_st->codec->width
1680 || last_h != is->video_st->codec->height
1681 || last_format != is->video_st->codec->pix_fmt) {
1682 av_log(NULL, AV_LOG_INFO, "Frame changed from size:%dx%d to size:%dx%d\n",
1683 last_w, last_h, is->video_st->codec->width, is->video_st->codec->height);
1684 avfilter_graph_free(&graph);
1685 graph = avfilter_graph_alloc();
1686 if ((ret = configure_video_filters(graph, is, vfilters)) < 0) {
1688 event.type = FF_QUIT_EVENT;
1689 event.user.data1 = is;
1690 SDL_PushEvent(&event);
1691 av_free_packet(&pkt);
1694 filt_in = is->in_video_filter;
1695 filt_out = is->out_video_filter;
1696 last_w = is->video_st->codec->width;
1697 last_h = is->video_st->codec->height;
1698 last_format = is->video_st->codec->pix_fmt;
1701 frame->pts = pts_int;
1702 frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame);
1703 if (is->use_dr1 && frame->opaque) {
1704 FrameBuffer *buf = frame->opaque;
1705 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1706 frame->data, frame->linesize,
1707 AV_PERM_READ | AV_PERM_PRESERVE,
1708 frame->width, frame->height,
1711 avfilter_copy_frame_props(fb, frame);
1712 fb->buf->priv = buf;
1713 fb->buf->free = filter_release_buffer;
1716 av_buffersrc_add_ref(filt_in, fb, AV_BUFFERSRC_FLAG_NO_COPY);
1719 av_buffersrc_write_frame(filt_in, frame);
1721 av_free_packet(&pkt);
1724 is->frame_last_returned_time = av_gettime() / 1000000.0;
1726 ret = av_buffersink_get_buffer_ref(filt_out, &picref, 0);
1732 is->frame_last_filter_delay = av_gettime() / 1000000.0 - is->frame_last_returned_time;
1733 if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0)
1734 is->frame_last_filter_delay = 0;
1736 avfilter_copy_buf_props(frame, picref);
1738 pts_int = picref->pts;
1739 tb = filt_out->inputs[0]->time_base;
1741 frame->opaque = picref;
1743 if (av_cmp_q(tb, is->video_st->time_base)) {
1744 av_unused int64_t pts1 = pts_int;
1745 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1746 av_dlog(NULL, "video_thread(): "
1747 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1748 tb.num, tb.den, pts1,
1749 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1751 pts = pts_int * av_q2d(is->video_st->time_base);
1752 ret = queue_picture(is, frame, pts, pos);
1755 pts = pts_int * av_q2d(is->video_st->time_base);
1756 ret = queue_picture(is, frame, pts, pkt.pos);
1763 stream_toggle_pause(is);
1766 avcodec_flush_buffers(is->video_st->codec);
1768 av_freep(&vfilters);
1769 avfilter_graph_free(&graph);
1771 av_free_packet(&pkt);
1776 static int subtitle_thread(void *arg)
1778 VideoState *is = arg;
1780 AVPacket pkt1, *pkt = &pkt1;
1784 int r, g, b, y, u, v, a;
1787 while (is->paused && !is->subtitleq.abort_request) {
1790 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1793 if (pkt->data == flush_pkt.data) {
1794 avcodec_flush_buffers(is->subtitle_st->codec);
1797 SDL_LockMutex(is->subpq_mutex);
1798 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1799 !is->subtitleq.abort_request) {
1800 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1802 SDL_UnlockMutex(is->subpq_mutex);
1804 if (is->subtitleq.abort_request)
1807 sp = &is->subpq[is->subpq_windex];
1809 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1810 this packet, if any */
1812 if (pkt->pts != AV_NOPTS_VALUE)
1813 pts = av_q2d(is->subtitle_st->time_base) * pkt->pts;
1815 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1816 &got_subtitle, pkt);
1818 if (got_subtitle && sp->sub.format == 0) {
1821 for (i = 0; i < sp->sub.num_rects; i++)
1823 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1825 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1826 y = RGB_TO_Y_CCIR(r, g, b);
1827 u = RGB_TO_U_CCIR(r, g, b, 0);
1828 v = RGB_TO_V_CCIR(r, g, b, 0);
1829 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1833 /* now we can update the picture count */
1834 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1835 is->subpq_windex = 0;
1836 SDL_LockMutex(is->subpq_mutex);
1838 SDL_UnlockMutex(is->subpq_mutex);
1840 av_free_packet(pkt);
1845 /* copy samples for viewing in editor window */
1846 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1850 size = samples_size / sizeof(short);
1852 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1855 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1857 is->sample_array_index += len;
1858 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1859 is->sample_array_index = 0;
1864 /* return the wanted number of samples to get better sync if sync_type is video
1865 * or external master clock */
1866 static int synchronize_audio(VideoState *is, int nb_samples)
1868 int wanted_nb_samples = nb_samples;
1870 /* if not master, then we try to remove or add samples to correct the clock */
1871 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1872 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1873 double diff, avg_diff;
1874 int min_nb_samples, max_nb_samples;
1876 diff = get_audio_clock(is) - get_master_clock(is);
1878 if (diff < AV_NOSYNC_THRESHOLD) {
1879 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1880 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1881 /* not enough measures to have a correct estimate */
1882 is->audio_diff_avg_count++;
1884 /* estimate the A-V difference */
1885 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1887 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1888 wanted_nb_samples = nb_samples + (int)(diff * is->audio_src.freq);
1889 min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100));
1890 max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100));
1891 wanted_nb_samples = FFMIN(FFMAX(wanted_nb_samples, min_nb_samples), max_nb_samples);
1893 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1894 diff, avg_diff, wanted_nb_samples - nb_samples,
1895 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1898 /* too big difference : may be initial PTS errors, so
1900 is->audio_diff_avg_count = 0;
1901 is->audio_diff_cum = 0;
1905 return wanted_nb_samples;
1908 /* decode one audio frame and returns its uncompressed size */
1909 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1911 AVPacket *pkt_temp = &is->audio_pkt_temp;
1912 AVPacket *pkt = &is->audio_pkt;
1913 AVCodecContext *dec = is->audio_st->codec;
1914 int len1, len2, data_size, resampled_data_size;
1915 int64_t dec_channel_layout;
1919 int flush_complete = 0;
1920 int wanted_nb_samples;
1923 /* NOTE: the audio packet can contain several frames */
1924 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
1926 if (!(is->frame = avcodec_alloc_frame()))
1927 return AVERROR(ENOMEM);
1929 avcodec_get_frame_defaults(is->frame);
1937 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
1939 /* if error, we skip the frame */
1944 pkt_temp->data += len1;
1945 pkt_temp->size -= len1;
1948 /* stop sending empty packets if the decoder is finished */
1949 if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
1953 data_size = av_samples_get_buffer_size(NULL, dec->channels,
1954 is->frame->nb_samples,
1955 dec->sample_fmt, 1);
1957 dec_channel_layout =
1958 (dec->channel_layout && dec->channels == av_get_channel_layout_nb_channels(dec->channel_layout)) ?
1959 dec->channel_layout : av_get_default_channel_layout(dec->channels);
1960 wanted_nb_samples = synchronize_audio(is, is->frame->nb_samples);
1962 if (dec->sample_fmt != is->audio_src.fmt ||
1963 dec_channel_layout != is->audio_src.channel_layout ||
1964 dec->sample_rate != is->audio_src.freq ||
1965 (wanted_nb_samples != is->frame->nb_samples && !is->swr_ctx)) {
1966 swr_free(&is->swr_ctx);
1967 is->swr_ctx = swr_alloc_set_opts(NULL,
1968 is->audio_tgt.channel_layout, is->audio_tgt.fmt, is->audio_tgt.freq,
1969 dec_channel_layout, dec->sample_fmt, dec->sample_rate,
1971 if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
1972 fprintf(stderr, "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
1973 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels,
1974 is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels);
1977 is->audio_src.channel_layout = dec_channel_layout;
1978 is->audio_src.channels = dec->channels;
1979 is->audio_src.freq = dec->sample_rate;
1980 is->audio_src.fmt = dec->sample_fmt;
1984 const uint8_t **in = (const uint8_t **)is->frame->extended_data;
1985 uint8_t *out[] = {is->audio_buf2};
1986 int out_count = sizeof(is->audio_buf2) / is->audio_tgt.channels / av_get_bytes_per_sample(is->audio_tgt.fmt);
1987 if (wanted_nb_samples != is->frame->nb_samples) {
1988 if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - is->frame->nb_samples) * is->audio_tgt.freq / dec->sample_rate,
1989 wanted_nb_samples * is->audio_tgt.freq / dec->sample_rate) < 0) {
1990 fprintf(stderr, "swr_set_compensation() failed\n");
1994 len2 = swr_convert(is->swr_ctx, out, out_count, in, is->frame->nb_samples);
1996 fprintf(stderr, "swr_convert() failed\n");
1999 if (len2 == out_count) {
2000 fprintf(stderr, "warning: audio buffer is probably too small\n");
2001 swr_init(is->swr_ctx);
2003 is->audio_buf = is->audio_buf2;
2004 resampled_data_size = len2 * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
2006 is->audio_buf = is->frame->data[0];
2007 resampled_data_size = data_size;
2010 /* if no pts, then compute it */
2011 pts = is->audio_clock;
2013 is->audio_clock += (double)data_size /
2014 (dec->channels * dec->sample_rate * av_get_bytes_per_sample(dec->sample_fmt));
2017 static double last_clock;
2018 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2019 is->audio_clock - last_clock,
2020 is->audio_clock, pts);
2021 last_clock = is->audio_clock;
2024 return resampled_data_size;
2027 /* free the current packet */
2029 av_free_packet(pkt);
2030 memset(pkt_temp, 0, sizeof(*pkt_temp));
2032 if (is->paused || is->audioq.abort_request) {
2036 /* read next packet */
2037 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
2040 if (pkt->data == flush_pkt.data) {
2041 avcodec_flush_buffers(dec);
2047 /* if update the audio clock with the pts */
2048 if (pkt->pts != AV_NOPTS_VALUE) {
2049 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2054 /* prepare a new audio buffer */
2055 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2057 VideoState *is = opaque;
2058 int audio_size, len1;
2060 int frame_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, 1, is->audio_tgt.fmt, 1);
2063 audio_callback_time = av_gettime();
2066 if (is->audio_buf_index >= is->audio_buf_size) {
2067 audio_size = audio_decode_frame(is, &pts);
2068 if (audio_size < 0) {
2069 /* if error, just output silence */
2070 is->audio_buf = is->silence_buf;
2071 is->audio_buf_size = sizeof(is->silence_buf) / frame_size * frame_size;
2073 if (is->show_mode != SHOW_MODE_VIDEO)
2074 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2075 is->audio_buf_size = audio_size;
2077 is->audio_buf_index = 0;
2079 len1 = is->audio_buf_size - is->audio_buf_index;
2082 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2085 is->audio_buf_index += len1;
2087 bytes_per_sec = is->audio_tgt.freq * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
2088 is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
2089 /* Let's assume the audio driver that is used by SDL has two periods. */
2090 is->audio_current_pts = is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec;
2091 is->audio_current_pts_drift = is->audio_current_pts - audio_callback_time / 1000000.0;
2094 static int audio_open(void *opaque, int64_t wanted_channel_layout, int wanted_nb_channels, int wanted_sample_rate, struct AudioParams *audio_hw_params)
2096 SDL_AudioSpec wanted_spec, spec;
2098 const int next_nb_channels[] = {0, 0, 1, 6, 2, 6, 4, 6};
2100 env = SDL_getenv("SDL_AUDIO_CHANNELS");
2102 wanted_nb_channels = atoi(env);
2103 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2105 if (!wanted_channel_layout || wanted_nb_channels != av_get_channel_layout_nb_channels(wanted_channel_layout)) {
2106 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2107 wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX;
2109 wanted_spec.channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
2110 wanted_spec.freq = wanted_sample_rate;
2111 if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) {
2112 fprintf(stderr, "Invalid sample rate or channel count!\n");
2115 wanted_spec.format = AUDIO_S16SYS;
2116 wanted_spec.silence = 0;
2117 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2118 wanted_spec.callback = sdl_audio_callback;
2119 wanted_spec.userdata = opaque;
2120 while (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2121 fprintf(stderr, "SDL_OpenAudio (%d channels): %s\n", wanted_spec.channels, SDL_GetError());
2122 wanted_spec.channels = next_nb_channels[FFMIN(7, wanted_spec.channels)];
2123 if (!wanted_spec.channels) {
2124 fprintf(stderr, "No more channel combinations to try, audio open failed\n");
2127 wanted_channel_layout = av_get_default_channel_layout(wanted_spec.channels);
2129 if (spec.format != AUDIO_S16SYS) {
2130 fprintf(stderr, "SDL advised audio format %d is not supported!\n", spec.format);
2133 if (spec.channels != wanted_spec.channels) {
2134 wanted_channel_layout = av_get_default_channel_layout(spec.channels);
2135 if (!wanted_channel_layout) {
2136 fprintf(stderr, "SDL advised channel count %d is not supported!\n", spec.channels);
2141 audio_hw_params->fmt = AV_SAMPLE_FMT_S16;
2142 audio_hw_params->freq = spec.freq;
2143 audio_hw_params->channel_layout = wanted_channel_layout;
2144 audio_hw_params->channels = spec.channels;
2148 /* open a given stream. Return 0 if OK */
2149 static int stream_component_open(VideoState *is, int stream_index)
2151 AVFormatContext *ic = is->ic;
2152 AVCodecContext *avctx;
2155 AVDictionaryEntry *t = NULL;
2157 if (stream_index < 0 || stream_index >= ic->nb_streams)
2159 avctx = ic->streams[stream_index]->codec;
2161 codec = avcodec_find_decoder(avctx->codec_id);
2162 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec);
2164 switch(avctx->codec_type){
2165 case AVMEDIA_TYPE_AUDIO : is->last_audio_stream = stream_index; if(audio_codec_name ) codec= avcodec_find_decoder_by_name( audio_codec_name); break;
2166 case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; if(subtitle_codec_name) codec= avcodec_find_decoder_by_name(subtitle_codec_name); break;
2167 case AVMEDIA_TYPE_VIDEO : is->last_video_stream = stream_index; if(video_codec_name ) codec= avcodec_find_decoder_by_name( video_codec_name); break;
2172 avctx->workaround_bugs = workaround_bugs;
2173 avctx->lowres = lowres;
2174 if(avctx->lowres > codec->max_lowres){
2175 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
2177 avctx->lowres= codec->max_lowres;
2179 avctx->idct_algo = idct;
2180 avctx->skip_frame = skip_frame;
2181 avctx->skip_idct = skip_idct;
2182 avctx->skip_loop_filter = skip_loop_filter;
2183 avctx->error_concealment = error_concealment;
2185 if(avctx->lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2186 if (fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2187 if(codec->capabilities & CODEC_CAP_DR1)
2188 avctx->flags |= CODEC_FLAG_EMU_EDGE;
2190 if (!av_dict_get(opts, "threads", NULL, 0))
2191 av_dict_set(&opts, "threads", "auto", 0);
2193 avcodec_open2(avctx, codec, &opts) < 0)
2195 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2196 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2197 return AVERROR_OPTION_NOT_FOUND;
2200 /* prepare audio output */
2201 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2202 int audio_hw_buf_size = audio_open(is, avctx->channel_layout, avctx->channels, avctx->sample_rate, &is->audio_src);
2203 if (audio_hw_buf_size < 0)
2205 is->audio_hw_buf_size = audio_hw_buf_size;
2206 is->audio_tgt = is->audio_src;
2209 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2210 switch (avctx->codec_type) {
2211 case AVMEDIA_TYPE_AUDIO:
2212 is->audio_stream = stream_index;
2213 is->audio_st = ic->streams[stream_index];
2214 is->audio_buf_size = 0;
2215 is->audio_buf_index = 0;
2217 /* init averaging filter */
2218 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2219 is->audio_diff_avg_count = 0;
2220 /* since we do not have a precise anough audio fifo fullness,
2221 we correct audio sync only if larger than this threshold */
2222 is->audio_diff_threshold = 2.0 * is->audio_hw_buf_size / av_samples_get_buffer_size(NULL, is->audio_tgt.channels, is->audio_tgt.freq, is->audio_tgt.fmt, 1);
2224 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2225 memset(&is->audio_pkt_temp, 0, sizeof(is->audio_pkt_temp));
2226 packet_queue_start(&is->audioq);
2229 case AVMEDIA_TYPE_VIDEO:
2230 is->video_stream = stream_index;
2231 is->video_st = ic->streams[stream_index];
2233 packet_queue_start(&is->videoq);
2234 is->video_tid = SDL_CreateThread(video_thread, is);
2236 case AVMEDIA_TYPE_SUBTITLE:
2237 is->subtitle_stream = stream_index;
2238 is->subtitle_st = ic->streams[stream_index];
2239 packet_queue_start(&is->subtitleq);
2241 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2249 static void stream_component_close(VideoState *is, int stream_index)
2251 AVFormatContext *ic = is->ic;
2252 AVCodecContext *avctx;
2254 if (stream_index < 0 || stream_index >= ic->nb_streams)
2256 avctx = ic->streams[stream_index]->codec;
2258 switch (avctx->codec_type) {
2259 case AVMEDIA_TYPE_AUDIO:
2260 packet_queue_abort(&is->audioq);
2264 packet_queue_flush(&is->audioq);
2265 av_free_packet(&is->audio_pkt);
2266 swr_free(&is->swr_ctx);
2267 av_freep(&is->audio_buf1);
2268 is->audio_buf = NULL;
2269 av_freep(&is->frame);
2272 av_rdft_end(is->rdft);
2273 av_freep(&is->rdft_data);
2278 case AVMEDIA_TYPE_VIDEO:
2279 packet_queue_abort(&is->videoq);
2281 /* note: we also signal this mutex to make sure we deblock the
2282 video thread in all cases */
2283 SDL_LockMutex(is->pictq_mutex);
2284 SDL_CondSignal(is->pictq_cond);
2285 SDL_UnlockMutex(is->pictq_mutex);
2287 SDL_WaitThread(is->video_tid, NULL);
2289 packet_queue_flush(&is->videoq);
2291 case AVMEDIA_TYPE_SUBTITLE:
2292 packet_queue_abort(&is->subtitleq);
2294 /* note: we also signal this mutex to make sure we deblock the
2295 video thread in all cases */
2296 SDL_LockMutex(is->subpq_mutex);
2297 is->subtitle_stream_changed = 1;
2299 SDL_CondSignal(is->subpq_cond);
2300 SDL_UnlockMutex(is->subpq_mutex);
2302 SDL_WaitThread(is->subtitle_tid, NULL);
2304 packet_queue_flush(&is->subtitleq);
2310 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2311 avcodec_close(avctx);
2313 free_buffer_pool(&is->buffer_pool);
2315 switch (avctx->codec_type) {
2316 case AVMEDIA_TYPE_AUDIO:
2317 is->audio_st = NULL;
2318 is->audio_stream = -1;
2320 case AVMEDIA_TYPE_VIDEO:
2321 is->video_st = NULL;
2322 is->video_stream = -1;
2324 case AVMEDIA_TYPE_SUBTITLE:
2325 is->subtitle_st = NULL;
2326 is->subtitle_stream = -1;
2333 static int decode_interrupt_cb(void *ctx)
2335 VideoState *is = ctx;
2336 return is->abort_request;
2339 /* this thread gets the stream from the disk or the network */
2340 static int read_thread(void *arg)
2342 VideoState *is = arg;
2343 AVFormatContext *ic = NULL;
2345 int st_index[AVMEDIA_TYPE_NB];
2346 AVPacket pkt1, *pkt = &pkt1;
2348 int pkt_in_play_range = 0;
2349 AVDictionaryEntry *t;
2350 AVDictionary **opts;
2351 int orig_nb_streams;
2353 memset(st_index, -1, sizeof(st_index));
2354 is->last_video_stream = is->video_stream = -1;
2355 is->last_audio_stream = is->audio_stream = -1;
2356 is->last_subtitle_stream = is->subtitle_stream = -1;
2358 ic = avformat_alloc_context();
2359 ic->interrupt_callback.callback = decode_interrupt_cb;
2360 ic->interrupt_callback.opaque = is;
2361 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2363 print_error(is->filename, err);
2367 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2368 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2369 ret = AVERROR_OPTION_NOT_FOUND;
2375 ic->flags |= AVFMT_FLAG_GENPTS;
2377 opts = setup_find_stream_info_opts(ic, codec_opts);
2378 orig_nb_streams = ic->nb_streams;
2380 err = avformat_find_stream_info(ic, opts);
2382 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2386 for (i = 0; i < orig_nb_streams; i++)
2387 av_dict_free(&opts[i]);
2391 ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
2393 if (seek_by_bytes < 0)
2394 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2396 /* if seeking requested, we execute it */
2397 if (start_time != AV_NOPTS_VALUE) {
2400 timestamp = start_time;
2401 /* add the stream start time */
2402 if (ic->start_time != AV_NOPTS_VALUE)
2403 timestamp += ic->start_time;
2404 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2406 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2407 is->filename, (double)timestamp / AV_TIME_BASE);
2411 for (i = 0; i < ic->nb_streams; i++)
2412 ic->streams[i]->discard = AVDISCARD_ALL;
2414 st_index[AVMEDIA_TYPE_VIDEO] =
2415 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2416 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2418 st_index[AVMEDIA_TYPE_AUDIO] =
2419 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2420 wanted_stream[AVMEDIA_TYPE_AUDIO],
2421 st_index[AVMEDIA_TYPE_VIDEO],
2424 st_index[AVMEDIA_TYPE_SUBTITLE] =
2425 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2426 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2427 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2428 st_index[AVMEDIA_TYPE_AUDIO] :
2429 st_index[AVMEDIA_TYPE_VIDEO]),
2432 av_dump_format(ic, 0, is->filename, 0);
2435 is->show_mode = show_mode;
2437 /* open the streams */
2438 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2439 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2443 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2444 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2446 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2447 if (is->show_mode == SHOW_MODE_NONE)
2448 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2450 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2451 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2454 if (is->video_stream < 0 && is->audio_stream < 0) {
2455 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2461 if (is->abort_request)
2463 if (is->paused != is->last_paused) {
2464 is->last_paused = is->paused;
2466 is->read_pause_return = av_read_pause(ic);
2470 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
2472 (!strcmp(ic->iformat->name, "rtsp") ||
2473 (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) {
2474 /* wait 10 ms to avoid trying to get another packet */
2481 int64_t seek_target = is->seek_pos;
2482 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2483 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2484 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2485 // of the seek_pos/seek_rel variables
2487 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2489 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2491 if (is->audio_stream >= 0) {
2492 packet_queue_flush(&is->audioq);
2493 packet_queue_put(&is->audioq, &flush_pkt);
2495 if (is->subtitle_stream >= 0) {
2496 packet_queue_flush(&is->subtitleq);
2497 packet_queue_put(&is->subtitleq, &flush_pkt);
2499 if (is->video_stream >= 0) {
2500 packet_queue_flush(&is->videoq);
2501 packet_queue_put(&is->videoq, &flush_pkt);
2507 if (is->que_attachments_req) {
2508 avformat_queue_attached_pictures(ic);
2509 is->que_attachments_req = 0;
2512 /* if the queue are full, no need to read more */
2513 if (!infinite_buffer &&
2514 (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2515 || ( (is->audioq .nb_packets > MIN_FRAMES || is->audio_stream < 0 || is->audioq.abort_request)
2516 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0 || is->videoq.abort_request)
2517 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0 || is->subtitleq.abort_request)))) {
2523 if (is->video_stream >= 0) {
2524 av_init_packet(pkt);
2527 pkt->stream_index = is->video_stream;
2528 packet_queue_put(&is->videoq, pkt);
2530 if (is->audio_stream >= 0 &&
2531 is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
2532 av_init_packet(pkt);
2535 pkt->stream_index = is->audio_stream;
2536 packet_queue_put(&is->audioq, pkt);
2539 if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) {
2540 if (loop != 1 && (!loop || --loop)) {
2541 stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2542 } else if (autoexit) {
2550 ret = av_read_frame(ic, pkt);
2552 if (ret == AVERROR_EOF || url_feof(ic->pb))
2554 if (ic->pb && ic->pb->error)
2556 SDL_Delay(100); /* wait for user event */
2559 /* check if packet is in play range specified by user, then queue, otherwise discard */
2560 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2561 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2562 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2563 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2564 <= ((double)duration / 1000000);
2565 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2566 packet_queue_put(&is->audioq, pkt);
2567 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2568 packet_queue_put(&is->videoq, pkt);
2569 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2570 packet_queue_put(&is->subtitleq, pkt);
2572 av_free_packet(pkt);
2575 /* wait until the end */
2576 while (!is->abort_request) {
2582 /* close each stream */
2583 if (is->audio_stream >= 0)
2584 stream_component_close(is, is->audio_stream);
2585 if (is->video_stream >= 0)
2586 stream_component_close(is, is->video_stream);
2587 if (is->subtitle_stream >= 0)
2588 stream_component_close(is, is->subtitle_stream);
2590 avformat_close_input(&is->ic);
2596 event.type = FF_QUIT_EVENT;
2597 event.user.data1 = is;
2598 SDL_PushEvent(&event);
2603 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2607 is = av_mallocz(sizeof(VideoState));
2610 av_strlcpy(is->filename, filename, sizeof(is->filename));
2611 is->iformat = iformat;
2615 /* start video display */
2616 is->pictq_mutex = SDL_CreateMutex();
2617 is->pictq_cond = SDL_CreateCond();
2619 is->subpq_mutex = SDL_CreateMutex();
2620 is->subpq_cond = SDL_CreateCond();
2622 packet_queue_init(&is->videoq);
2623 packet_queue_init(&is->audioq);
2624 packet_queue_init(&is->subtitleq);
2626 is->av_sync_type = av_sync_type;
2627 is->read_tid = SDL_CreateThread(read_thread, is);
2628 if (!is->read_tid) {
2635 static void stream_cycle_channel(VideoState *is, int codec_type)
2637 AVFormatContext *ic = is->ic;
2638 int start_index, stream_index;
2642 if (codec_type == AVMEDIA_TYPE_VIDEO) {
2643 start_index = is->last_video_stream;
2644 old_index = is->video_stream;
2645 } else if (codec_type == AVMEDIA_TYPE_AUDIO) {
2646 start_index = is->last_audio_stream;
2647 old_index = is->audio_stream;
2649 start_index = is->last_subtitle_stream;
2650 old_index = is->subtitle_stream;
2652 stream_index = start_index;
2654 if (++stream_index >= is->ic->nb_streams)
2656 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2659 is->last_subtitle_stream = -1;
2662 if (start_index == -1)
2666 if (stream_index == start_index)
2668 st = ic->streams[stream_index];
2669 if (st->codec->codec_type == codec_type) {
2670 /* check that parameters are OK */
2671 switch (codec_type) {
2672 case AVMEDIA_TYPE_AUDIO:
2673 if (st->codec->sample_rate != 0 &&
2674 st->codec->channels != 0)
2677 case AVMEDIA_TYPE_VIDEO:
2678 case AVMEDIA_TYPE_SUBTITLE:
2686 stream_component_close(is, old_index);
2687 stream_component_open(is, stream_index);
2688 if (codec_type == AVMEDIA_TYPE_VIDEO)
2689 is->que_attachments_req = 1;
2693 static void toggle_full_screen(VideoState *is)
2695 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2696 /* OS X needs to reallocate the SDL overlays */
2698 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++)
2699 is->pictq[i].reallocate = 1;
2701 is_full_screen = !is_full_screen;
2705 static void toggle_pause(VideoState *is)
2707 stream_toggle_pause(is);
2711 static void step_to_next_frame(VideoState *is)
2713 /* if the stream is paused unpause it, then step */
2715 stream_toggle_pause(is);
2719 static void toggle_audio_display(VideoState *is)
2721 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2722 is->show_mode = (is->show_mode + 1) % SHOW_MODE_NB;
2723 fill_rectangle(screen,
2724 is->xleft, is->ytop, is->width, is->height,
2726 SDL_UpdateRect(screen, is->xleft, is->ytop, is->width, is->height);
2729 /* handle an event sent by the GUI */
2730 static void event_loop(VideoState *cur_stream)
2733 double incr, pos, frac;
2737 SDL_WaitEvent(&event);
2738 switch (event.type) {
2740 if (exit_on_keydown) {
2741 do_exit(cur_stream);
2744 switch (event.key.keysym.sym) {
2747 do_exit(cur_stream);
2750 toggle_full_screen(cur_stream);
2751 cur_stream->force_refresh = 1;
2755 toggle_pause(cur_stream);
2757 case SDLK_s: // S: Step to next frame
2758 step_to_next_frame(cur_stream);
2761 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2764 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2767 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2770 toggle_audio_display(cur_stream);
2771 cur_stream->force_refresh = 1;
2791 if (seek_by_bytes) {
2792 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) {
2793 pos = cur_stream->video_current_pos;
2794 } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) {
2795 pos = cur_stream->audio_pkt.pos;
2797 pos = avio_tell(cur_stream->ic->pb);
2798 if (cur_stream->ic->bit_rate)
2799 incr *= cur_stream->ic->bit_rate / 8.0;
2803 stream_seek(cur_stream, pos, incr, 1);
2805 pos = get_master_clock(cur_stream);
2807 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2814 case SDL_VIDEOEXPOSE:
2815 cur_stream->force_refresh = 1;
2817 case SDL_MOUSEBUTTONDOWN:
2818 if (exit_on_mousedown) {
2819 do_exit(cur_stream);
2822 case SDL_MOUSEMOTION:
2823 if (event.type == SDL_MOUSEBUTTONDOWN) {
2826 if (event.motion.state != SDL_PRESSED)
2830 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
2831 uint64_t size = avio_size(cur_stream->ic->pb);
2832 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2836 int tns, thh, tmm, tss;
2837 tns = cur_stream->ic->duration / 1000000LL;
2839 tmm = (tns % 3600) / 60;
2841 frac = x / cur_stream->width;
2844 mm = (ns % 3600) / 60;
2846 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2847 hh, mm, ss, thh, tmm, tss);
2848 ts = frac * cur_stream->ic->duration;
2849 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2850 ts += cur_stream->ic->start_time;
2851 stream_seek(cur_stream, ts, 0, 0);
2854 case SDL_VIDEORESIZE:
2855 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2856 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2857 screen_width = cur_stream->width = event.resize.w;
2858 screen_height = cur_stream->height = event.resize.h;
2859 cur_stream->force_refresh = 1;
2863 do_exit(cur_stream);
2865 case FF_ALLOC_EVENT:
2866 alloc_picture(event.user.data1);
2868 case FF_REFRESH_EVENT:
2869 video_refresh(event.user.data1);
2870 cur_stream->refresh = 0;
2878 static int opt_frame_size(const char *opt, const char *arg)
2880 av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
2881 return opt_default("video_size", arg);
2884 static int opt_width(const char *opt, const char *arg)
2886 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2890 static int opt_height(const char *opt, const char *arg)
2892 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2896 static int opt_format(const char *opt, const char *arg)
2898 file_iformat = av_find_input_format(arg);
2899 if (!file_iformat) {
2900 fprintf(stderr, "Unknown input format: %s\n", arg);
2901 return AVERROR(EINVAL);
2906 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2908 av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
2909 return opt_default("pixel_format", arg);
2912 static int opt_sync(const char *opt, const char *arg)
2914 if (!strcmp(arg, "audio"))
2915 av_sync_type = AV_SYNC_AUDIO_MASTER;
2916 else if (!strcmp(arg, "video"))
2917 av_sync_type = AV_SYNC_VIDEO_MASTER;
2918 else if (!strcmp(arg, "ext"))
2919 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2921 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2927 static int opt_seek(const char *opt, const char *arg)
2929 start_time = parse_time_or_die(opt, arg, 1);
2933 static int opt_duration(const char *opt, const char *arg)
2935 duration = parse_time_or_die(opt, arg, 1);
2939 static int opt_show_mode(const char *opt, const char *arg)
2941 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
2942 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
2943 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
2944 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
2948 static void opt_input_file(void *optctx, const char *filename)
2950 if (input_filename) {
2951 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
2952 filename, input_filename);
2955 if (!strcmp(filename, "-"))
2957 input_filename = filename;
2960 static int opt_codec(void *o, const char *opt, const char *arg)
2962 switch(opt[strlen(opt)-1]){
2963 case 'a' : audio_codec_name = arg; break;
2964 case 's' : subtitle_codec_name = arg; break;
2965 case 'v' : video_codec_name = arg; break;
2972 static const OptionDef options[] = {
2973 #include "cmdutils_common_opts.h"
2974 { "x", HAS_ARG, { (void*)opt_width }, "force displayed width", "width" },
2975 { "y", HAS_ARG, { (void*)opt_height }, "force displayed height", "height" },
2976 { "s", HAS_ARG | OPT_VIDEO, { (void*)opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
2977 { "fs", OPT_BOOL, { (void*)&is_full_screen }, "force full screen" },
2978 { "an", OPT_BOOL, { (void*)&audio_disable }, "disable audio" },
2979 { "vn", OPT_BOOL, { (void*)&video_disable }, "disable video" },
2980 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
2981 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
2982 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
2983 { "ss", HAS_ARG, { (void*)&opt_seek }, "seek to a given position in seconds", "pos" },
2984 { "t", HAS_ARG, { (void*)&opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
2985 { "bytes", OPT_INT | HAS_ARG, { (void*)&seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
2986 { "nodisp", OPT_BOOL, { (void*)&display_disable }, "disable graphical display" },
2987 { "f", HAS_ARG, { (void*)opt_format }, "force format", "fmt" },
2988 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { (void*)opt_frame_pix_fmt }, "set pixel format", "format" },
2989 { "stats", OPT_BOOL | OPT_EXPERT, { (void*)&show_status }, "show status", "" },
2990 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&workaround_bugs }, "workaround bugs", "" },
2991 { "fast", OPT_BOOL | OPT_EXPERT, { (void*)&fast }, "non spec compliant optimizations", "" },
2992 { "genpts", OPT_BOOL | OPT_EXPERT, { (void*)&genpts }, "generate pts", "" },
2993 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2994 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&lowres }, "", "" },
2995 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_loop_filter }, "", "" },
2996 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_frame }, "", "" },
2997 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_idct }, "", "" },
2998 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&idct }, "set idct algo", "algo" },
2999 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&error_concealment }, "set error concealment options", "bit_mask" },
3000 { "sync", HAS_ARG | OPT_EXPERT, { (void*)opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
3001 { "autoexit", OPT_BOOL | OPT_EXPERT, { (void*)&autoexit }, "exit at the end", "" },
3002 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_keydown }, "exit on key down", "" },
3003 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_mousedown }, "exit on mouse down", "" },
3004 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&loop }, "set number of times the playback shall be looped", "loop count" },
3005 { "framedrop", OPT_BOOL | OPT_EXPERT, { (void*)&framedrop }, "drop frames when cpu is too slow", "" },
3006 { "infbuf", OPT_BOOL | OPT_EXPERT, { (void*)&infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" },
3007 { "window_title", OPT_STRING | HAS_ARG, { (void*)&window_title }, "set window title", "window title" },
3009 { "vf", OPT_STRING | HAS_ARG, { (void*)&vfilters }, "video filters", "filter list" },
3011 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { (void*)&rdftspeed }, "rdft speed", "msecs" },
3012 { "showmode", HAS_ARG, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
3013 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { (void*)opt_default }, "generic catch all option", "" },
3014 { "i", OPT_BOOL, {(void *)&dummy}, "read specified file", "input_file"},
3015 { "codec", HAS_ARG | OPT_FUNC2, {(void*)opt_codec}, "force decoder", "decoder" },
3019 static void show_usage(void)
3021 av_log(NULL, AV_LOG_INFO, "Simple media player\n");
3022 av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name);
3023 av_log(NULL, AV_LOG_INFO, "\n");
3026 static int show_help(const char *opt, const char *arg)
3028 av_log_set_callback(log_callback_help);
3030 show_help_options(options, "Main options:", 0, OPT_EXPERT);
3031 show_help_options(options, "Advanced options:", OPT_EXPERT, 0);
3033 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3034 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3035 #if !CONFIG_AVFILTER
3036 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3038 show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM);
3040 printf("\nWhile playing:\n"
3042 "f toggle full screen\n"
3044 "a cycle audio channel\n"
3045 "v cycle video channel\n"
3046 "t cycle subtitle channel\n"
3047 "w show audio waves\n"
3048 "s activate frame-step mode\n"
3049 "left/right seek backward/forward 10 seconds\n"
3050 "down/up seek backward/forward 1 minute\n"
3051 "page down/page up seek backward/forward 10 minutes\n"
3052 "mouse click seek to percentage in file corresponding to fraction of width\n"
3057 static int lockmgr(void **mtx, enum AVLockOp op)
3060 case AV_LOCK_CREATE:
3061 *mtx = SDL_CreateMutex();
3065 case AV_LOCK_OBTAIN:
3066 return !!SDL_LockMutex(*mtx);
3067 case AV_LOCK_RELEASE:
3068 return !!SDL_UnlockMutex(*mtx);
3069 case AV_LOCK_DESTROY:
3070 SDL_DestroyMutex(*mtx);
3076 /* Called from the main */
3077 int main(int argc, char **argv)
3081 char dummy_videodriver[] = "SDL_VIDEODRIVER=dummy";
3083 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3084 parse_loglevel(argc, argv, options);
3086 /* register all codecs, demux and protocols */
3087 avcodec_register_all();
3089 avdevice_register_all();
3092 avfilter_register_all();
3095 avformat_network_init();
3099 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
3100 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
3102 show_banner(argc, argv, options);
3104 parse_options(NULL, argc, argv, options, opt_input_file);
3106 if (!input_filename) {
3108 fprintf(stderr, "An input file must be specified\n");
3109 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3113 if (display_disable) {
3116 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3118 flags &= ~SDL_INIT_AUDIO;
3119 if (display_disable)
3120 SDL_putenv(dummy_videodriver); /* For the event queue, we always need a video driver. */
3121 #if !defined(__MINGW32__) && !defined(__APPLE__)
3122 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3124 if (SDL_Init (flags)) {
3125 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3126 fprintf(stderr, "(Did you set the DISPLAY variable?)\n");
3130 if (!display_disable) {
3131 #if HAVE_SDL_VIDEO_SIZE
3132 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3133 fs_screen_width = vi->current_w;
3134 fs_screen_height = vi->current_h;
3138 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3139 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3140 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3142 if (av_lockmgr_register(lockmgr)) {
3143 fprintf(stderr, "Could not initialize lock manager!\n");
3147 av_init_packet(&flush_pkt);
3148 flush_pkt.data = (char *)(intptr_t)"FLUSH";
3150 is = stream_open(input_filename, file_iformat);
3152 fprintf(stderr, "Failed to initialize VideoState!\n");