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 "libavutil/opt.h"
44 #include "libavcodec/avfft.h"
45 #include "libswresample/swresample.h"
48 # include "libavfilter/avcodec.h"
49 # include "libavfilter/avfilter.h"
50 # include "libavfilter/avfiltergraph.h"
51 # include "libavfilter/buffersink.h"
55 #include <SDL_thread.h>
62 const char program_name[] = "ffplay";
63 const int program_birth_year = 2003;
65 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
68 /* SDL audio buffer size, in samples. Should be small to have precise
69 A/V sync as SDL does not have hardware buffer fullness info. */
70 #define SDL_AUDIO_BUFFER_SIZE 1024
72 /* no AV sync correction is done if below the AV sync threshold */
73 #define AV_SYNC_THRESHOLD 0.01
74 /* no AV correction is done if too big error */
75 #define AV_NOSYNC_THRESHOLD 10.0
77 /* maximum audio speed change to get correct sync */
78 #define SAMPLE_CORRECTION_PERCENT_MAX 10
80 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
81 #define AUDIO_DIFF_AVG_NB 20
83 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
84 #define SAMPLE_ARRAY_SIZE (2 * 65536)
86 static int sws_flags = SWS_BICUBIC;
88 typedef struct PacketQueue {
89 AVPacketList *first_pkt, *last_pkt;
97 #define VIDEO_PICTURE_QUEUE_SIZE 2
98 #define SUBPICTURE_QUEUE_SIZE 4
100 typedef struct VideoPicture {
101 double pts; ///< presentation time stamp for this picture
102 double duration; ///< expected duration of the frame
103 int64_t pos; ///< byte position in file
106 int width, height; /* source height & width */
107 AVRational sample_aspect_ratio;
110 enum PixelFormat pix_fmt;
113 AVFilterBufferRef *picref;
117 typedef struct SubPicture {
118 double pts; /* presentation time stamp for this picture */
123 AV_SYNC_AUDIO_MASTER, /* default choice */
124 AV_SYNC_VIDEO_MASTER,
125 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
128 typedef struct VideoState {
129 SDL_Thread *read_tid;
130 SDL_Thread *video_tid;
131 SDL_Thread *refresh_tid;
132 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
235 int last_video_stream, last_audio_stream, last_subtitle_stream;
238 typedef struct AllocEventProps {
243 static int opt_help(const char *opt, const char *arg);
245 /* options specified by the user */
246 static AVInputFormat *file_iformat;
247 static const char *input_filename;
248 static const char *window_title;
249 static int fs_screen_width;
250 static int fs_screen_height;
251 static int screen_width = 0;
252 static int screen_height = 0;
253 static int audio_disable;
254 static int video_disable;
255 static int wanted_stream[AVMEDIA_TYPE_NB] = {
256 [AVMEDIA_TYPE_AUDIO] = -1,
257 [AVMEDIA_TYPE_VIDEO] = -1,
258 [AVMEDIA_TYPE_SUBTITLE] = -1,
260 static int seek_by_bytes = -1;
261 static int display_disable;
262 static int show_status = 1;
263 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
264 static int64_t start_time = AV_NOPTS_VALUE;
265 static int64_t duration = AV_NOPTS_VALUE;
266 static int workaround_bugs = 1;
268 static int genpts = 0;
269 static int lowres = 0;
270 static int idct = FF_IDCT_AUTO;
271 static enum AVDiscard skip_frame = AVDISCARD_DEFAULT;
272 static enum AVDiscard skip_idct = AVDISCARD_DEFAULT;
273 static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT;
274 static int error_concealment = 3;
275 static int decoder_reorder_pts = -1;
277 static int exit_on_keydown;
278 static int exit_on_mousedown;
280 static int framedrop = -1;
281 static enum ShowMode show_mode = SHOW_MODE_NONE;
282 static const char *audio_codec_name;
283 static const char *subtitle_codec_name;
284 static const char *video_codec_name;
285 static int rdftspeed = 20;
287 static char *vfilters = NULL;
290 /* current context */
291 static int is_full_screen;
292 static int64_t audio_callback_time;
294 static AVPacket flush_pkt;
296 #define FF_ALLOC_EVENT (SDL_USEREVENT)
297 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
298 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
300 static SDL_Surface *screen;
302 void av_noreturn exit_program(int ret)
307 static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt)
311 if (q->abort_request)
314 pkt1 = av_malloc(sizeof(AVPacketList));
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);
332 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
336 /* duplicate the packet */
337 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
340 SDL_LockMutex(q->mutex);
341 ret = packet_queue_put_private(q, pkt);
342 SDL_UnlockMutex(q->mutex);
344 if (pkt != &flush_pkt && ret < 0)
350 /* packet queue handling */
351 static void packet_queue_init(PacketQueue *q)
353 memset(q, 0, sizeof(PacketQueue));
354 q->mutex = SDL_CreateMutex();
355 q->cond = SDL_CreateCond();
356 q->abort_request = 1;
359 static void packet_queue_flush(PacketQueue *q)
361 AVPacketList *pkt, *pkt1;
363 SDL_LockMutex(q->mutex);
364 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
366 av_free_packet(&pkt->pkt);
373 SDL_UnlockMutex(q->mutex);
376 static void packet_queue_destroy(PacketQueue *q)
378 packet_queue_flush(q);
379 SDL_DestroyMutex(q->mutex);
380 SDL_DestroyCond(q->cond);
383 static void packet_queue_abort(PacketQueue *q)
385 SDL_LockMutex(q->mutex);
387 q->abort_request = 1;
389 SDL_CondSignal(q->cond);
391 SDL_UnlockMutex(q->mutex);
394 static void packet_queue_start(PacketQueue *q)
396 SDL_LockMutex(q->mutex);
397 q->abort_request = 0;
398 packet_queue_put_private(q, &flush_pkt);
399 SDL_UnlockMutex(q->mutex);
402 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
403 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
408 SDL_LockMutex(q->mutex);
411 if (q->abort_request) {
418 q->first_pkt = pkt1->next;
422 q->size -= pkt1->pkt.size + sizeof(*pkt1);
431 SDL_CondWait(q->cond, q->mutex);
434 SDL_UnlockMutex(q->mutex);
438 static inline void fill_rectangle(SDL_Surface *screen,
439 int x, int y, int w, int h, int color)
446 SDL_FillRect(screen, &rect, color);
449 #define ALPHA_BLEND(a, oldp, newp, s)\
450 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
452 #define RGBA_IN(r, g, b, a, s)\
454 unsigned int v = ((const uint32_t *)(s))[0];\
455 a = (v >> 24) & 0xff;\
456 r = (v >> 16) & 0xff;\
457 g = (v >> 8) & 0xff;\
461 #define YUVA_IN(y, u, v, a, s, pal)\
463 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
464 a = (val >> 24) & 0xff;\
465 y = (val >> 16) & 0xff;\
466 u = (val >> 8) & 0xff;\
470 #define YUVA_OUT(d, y, u, v, a)\
472 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
478 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
480 int wrap, wrap3, width2, skip2;
481 int y, u, v, a, u1, v1, a1, w, h;
482 uint8_t *lum, *cb, *cr;
485 int dstx, dsty, dstw, dsth;
487 dstw = av_clip(rect->w, 0, imgw);
488 dsth = av_clip(rect->h, 0, imgh);
489 dstx = av_clip(rect->x, 0, imgw - dstw);
490 dsty = av_clip(rect->y, 0, imgh - dsth);
491 lum = dst->data[0] + dsty * dst->linesize[0];
492 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
493 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
495 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
497 wrap = dst->linesize[0];
498 wrap3 = rect->pict.linesize[0];
499 p = rect->pict.data[0];
500 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
508 YUVA_IN(y, u, v, a, p, pal);
509 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
510 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
511 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
517 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
518 YUVA_IN(y, u, v, a, p, pal);
522 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
524 YUVA_IN(y, u, v, a, p + BPP, pal);
528 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
529 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
530 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
537 YUVA_IN(y, u, v, a, p, pal);
538 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
539 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
540 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
544 p += wrap3 - dstw * BPP;
545 lum += wrap - dstw - dstx;
546 cb += dst->linesize[1] - width2 - skip2;
547 cr += dst->linesize[2] - width2 - skip2;
549 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
555 YUVA_IN(y, u, v, a, p, pal);
559 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
562 YUVA_IN(y, u, v, a, p, pal);
566 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
567 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
568 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
574 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
575 YUVA_IN(y, u, v, a, p, pal);
579 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
581 YUVA_IN(y, u, v, a, p + BPP, pal);
585 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
589 YUVA_IN(y, u, v, a, p, pal);
593 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
595 YUVA_IN(y, u, v, a, p + BPP, pal);
599 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
601 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
602 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
606 p += -wrap3 + 2 * BPP;
610 YUVA_IN(y, u, v, a, p, pal);
614 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
617 YUVA_IN(y, u, v, a, p, pal);
621 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
622 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
623 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
629 p += wrap3 + (wrap3 - dstw * BPP);
630 lum += wrap + (wrap - dstw - dstx);
631 cb += dst->linesize[1] - width2 - skip2;
632 cr += dst->linesize[2] - width2 - skip2;
634 /* handle odd height */
641 YUVA_IN(y, u, v, a, p, pal);
642 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
643 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
644 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
650 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
651 YUVA_IN(y, u, v, a, p, pal);
655 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
657 YUVA_IN(y, u, v, a, p + BPP, pal);
661 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
662 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
663 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
670 YUVA_IN(y, u, v, a, p, pal);
671 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
672 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
673 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
678 static void free_subpicture(SubPicture *sp)
680 avsubtitle_free(&sp->sub);
683 static void video_image_display(VideoState *is)
689 int width, height, x, y;
693 vp = &is->pictq[is->pictq_rindex];
695 if (vp->sample_aspect_ratio.num == 0)
698 aspect_ratio = av_q2d(vp->sample_aspect_ratio);
700 if (aspect_ratio <= 0.0)
702 aspect_ratio *= (float)vp->width / (float)vp->height;
704 if (is->subtitle_st) {
705 if (is->subpq_size > 0) {
706 sp = &is->subpq[is->subpq_rindex];
708 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
709 SDL_LockYUVOverlay (vp->bmp);
711 pict.data[0] = vp->bmp->pixels[0];
712 pict.data[1] = vp->bmp->pixels[2];
713 pict.data[2] = vp->bmp->pixels[1];
715 pict.linesize[0] = vp->bmp->pitches[0];
716 pict.linesize[1] = vp->bmp->pitches[2];
717 pict.linesize[2] = vp->bmp->pitches[1];
719 for (i = 0; i < sp->sub.num_rects; i++)
720 blend_subrect(&pict, sp->sub.rects[i],
721 vp->bmp->w, vp->bmp->h);
723 SDL_UnlockYUVOverlay (vp->bmp);
729 /* XXX: we suppose the screen has a 1.0 pixel ratio */
731 width = ((int)rint(height * aspect_ratio)) & ~1;
732 if (width > is->width) {
734 height = ((int)rint(width / aspect_ratio)) & ~1;
736 x = (is->width - width) / 2;
737 y = (is->height - height) / 2;
738 is->no_background = 0;
739 rect.x = is->xleft + x;
740 rect.y = is->ytop + y;
741 rect.w = FFMAX(width, 1);
742 rect.h = FFMAX(height, 1);
743 SDL_DisplayYUVOverlay(vp->bmp, &rect);
747 static inline int compute_mod(int a, int b)
749 return a < 0 ? a%b + b : a%b;
752 static void video_audio_display(VideoState *s)
754 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
755 int ch, channels, h, h2, bgcolor, fgcolor;
757 int rdft_bits, nb_freq;
759 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
761 nb_freq = 1 << (rdft_bits - 1);
763 /* compute display index : center on currently output samples */
764 channels = s->audio_tgt_channels;
765 nb_display_channels = channels;
767 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
769 delay = s->audio_write_buf_size;
772 /* to be more precise, we take into account the time spent since
773 the last buffer computation */
774 if (audio_callback_time) {
775 time_diff = av_gettime() - audio_callback_time;
776 delay -= (time_diff * s->audio_tgt_freq) / 1000000;
779 delay += 2 * data_used;
780 if (delay < data_used)
783 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
784 if (s->show_mode == SHOW_MODE_WAVES) {
786 for (i = 0; i < 1000; i += channels) {
787 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
788 int a = s->sample_array[idx];
789 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
790 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
791 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
793 if (h < score && (b ^ c) < 0) {
800 s->last_i_start = i_start;
802 i_start = s->last_i_start;
805 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
806 if (s->show_mode == SHOW_MODE_WAVES) {
807 fill_rectangle(screen,
808 s->xleft, s->ytop, s->width, s->height,
811 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
813 /* total height for one channel */
814 h = s->height / nb_display_channels;
815 /* graph height / 2 */
817 for (ch = 0; ch < nb_display_channels; ch++) {
819 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
820 for (x = 0; x < s->width; x++) {
821 y = (s->sample_array[i] * h2) >> 15;
828 fill_rectangle(screen,
829 s->xleft + x, ys, 1, y,
832 if (i >= SAMPLE_ARRAY_SIZE)
833 i -= SAMPLE_ARRAY_SIZE;
837 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
839 for (ch = 1; ch < nb_display_channels; ch++) {
840 y = s->ytop + ch * h;
841 fill_rectangle(screen,
842 s->xleft, y, s->width, 1,
845 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
847 nb_display_channels= FFMIN(nb_display_channels, 2);
848 if (rdft_bits != s->rdft_bits) {
849 av_rdft_end(s->rdft);
850 av_free(s->rdft_data);
851 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
852 s->rdft_bits = rdft_bits;
853 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
857 for (ch = 0; ch < nb_display_channels; ch++) {
858 data[ch] = s->rdft_data + 2 * nb_freq * ch;
860 for (x = 0; x < 2 * nb_freq; x++) {
861 double w = (x-nb_freq) * (1.0 / nb_freq);
862 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
864 if (i >= SAMPLE_ARRAY_SIZE)
865 i -= SAMPLE_ARRAY_SIZE;
867 av_rdft_calc(s->rdft, data[ch]);
869 // least efficient way to do this, we should of course directly access it but its more than fast enough
870 for (y = 0; y < s->height; y++) {
871 double w = 1 / sqrt(nb_freq);
872 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]));
873 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
874 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
877 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
879 fill_rectangle(screen,
880 s->xpos, s->height-y, 1, 1,
884 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
887 if (s->xpos >= s->width)
892 static void stream_close(VideoState *is)
896 /* XXX: use a special url_shutdown call to abort parse cleanly */
897 is->abort_request = 1;
898 SDL_WaitThread(is->read_tid, NULL);
899 SDL_WaitThread(is->refresh_tid, NULL);
900 packet_queue_destroy(&is->videoq);
901 packet_queue_destroy(&is->audioq);
902 packet_queue_destroy(&is->subtitleq);
904 /* free all pictures */
905 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
909 avfilter_unref_buffer(vp->picref);
914 SDL_FreeYUVOverlay(vp->bmp);
918 SDL_DestroyMutex(is->pictq_mutex);
919 SDL_DestroyCond(is->pictq_cond);
920 SDL_DestroyMutex(is->subpq_mutex);
921 SDL_DestroyCond(is->subpq_cond);
923 if (is->img_convert_ctx)
924 sws_freeContext(is->img_convert_ctx);
929 static void do_exit(VideoState *is)
934 av_lockmgr_register(NULL);
939 avformat_network_deinit();
943 av_log(NULL, AV_LOG_QUIET, "%s", "");
947 static void sigterm_handler(int sig)
952 static int video_open(VideoState *is, int force_set_video_mode)
954 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
956 VideoPicture *vp = &is->pictq[is->pictq_rindex];
958 if (is_full_screen) flags |= SDL_FULLSCREEN;
959 else flags |= SDL_RESIZABLE;
961 if (is_full_screen && fs_screen_width) {
963 h = fs_screen_height;
964 } else if (!is_full_screen && screen_width) {
967 } else if (vp->width) {
974 if (screen && is->width == screen->w && screen->w == w
975 && is->height== screen->h && screen->h == h && !force_set_video_mode)
977 screen = SDL_SetVideoMode(w, h, 0, flags);
979 fprintf(stderr, "SDL: could not set video mode - exiting\n");
983 window_title = input_filename;
984 SDL_WM_SetCaption(window_title, window_title);
986 is->width = screen->w;
987 is->height = screen->h;
992 /* display the current picture, if any */
993 static void video_display(VideoState *is)
997 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
998 video_audio_display(is);
999 else if (is->video_st)
1000 video_image_display(is);
1003 static int refresh_thread(void *opaque)
1005 VideoState *is= opaque;
1006 while (!is->abort_request) {
1008 event.type = FF_REFRESH_EVENT;
1009 event.user.data1 = opaque;
1010 if (!is->refresh && (!is->paused || is->force_refresh)) {
1012 SDL_PushEvent(&event);
1014 //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
1015 usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
1020 /* get the current audio clock value */
1021 static double get_audio_clock(VideoState *is)
1024 return is->audio_current_pts;
1026 return is->audio_current_pts_drift + av_gettime() / 1000000.0;
1030 /* get the current video clock value */
1031 static double get_video_clock(VideoState *is)
1034 return is->video_current_pts;
1036 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1040 /* get the current external clock value */
1041 static double get_external_clock(VideoState *is)
1045 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1048 /* get the current master clock value */
1049 static double get_master_clock(VideoState *is)
1053 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1055 val = get_video_clock(is);
1057 val = get_audio_clock(is);
1058 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1060 val = get_audio_clock(is);
1062 val = get_video_clock(is);
1064 val = get_external_clock(is);
1069 /* seek in the stream */
1070 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1072 if (!is->seek_req) {
1075 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1077 is->seek_flags |= AVSEEK_FLAG_BYTE;
1082 /* pause or resume the video */
1083 static void stream_toggle_pause(VideoState *is)
1086 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1087 if (is->read_pause_return != AVERROR(ENOSYS)) {
1088 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1090 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1092 is->paused = !is->paused;
1095 static double compute_target_delay(double delay, VideoState *is)
1097 double sync_threshold, diff;
1099 /* update delay to follow master synchronisation source */
1100 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1101 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1102 /* if video is slave, we try to correct big delays by
1103 duplicating or deleting a frame */
1104 diff = get_video_clock(is) - get_master_clock(is);
1106 /* skip or repeat frame. We take into account the
1107 delay to compute the threshold. I still don't know
1108 if it is the best guess */
1109 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1110 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1111 if (diff <= -sync_threshold)
1113 else if (diff >= sync_threshold)
1118 av_dlog(NULL, "video: delay=%0.3f A-V=%f\n",
1124 static void pictq_next_picture(VideoState *is) {
1125 /* update queue size and signal for next picture */
1126 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1127 is->pictq_rindex = 0;
1129 SDL_LockMutex(is->pictq_mutex);
1131 SDL_CondSignal(is->pictq_cond);
1132 SDL_UnlockMutex(is->pictq_mutex);
1135 static void update_video_pts(VideoState *is, double pts, int64_t pos) {
1136 double time = av_gettime() / 1000000.0;
1137 /* update current video pts */
1138 is->video_current_pts = pts;
1139 is->video_current_pts_drift = is->video_current_pts - time;
1140 is->video_current_pos = pos;
1141 is->frame_last_pts = pts;
1144 /* called to display each frame */
1145 static void video_refresh(void *opaque)
1147 VideoState *is = opaque;
1151 SubPicture *sp, *sp2;
1155 if (is->pictq_size == 0) {
1156 SDL_LockMutex(is->pictq_mutex);
1157 if (is->frame_last_dropped_pts != AV_NOPTS_VALUE && is->frame_last_dropped_pts > is->frame_last_pts) {
1158 update_video_pts(is, is->frame_last_dropped_pts, is->frame_last_dropped_pos);
1159 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1161 SDL_UnlockMutex(is->pictq_mutex);
1162 // nothing to do, no picture to display in the que
1164 double last_duration, duration, delay;
1165 /* dequeue the picture */
1166 vp = &is->pictq[is->pictq_rindex];
1169 pictq_next_picture(is);
1176 /* compute nominal last_duration */
1177 last_duration = vp->pts - is->frame_last_pts;
1178 if (last_duration > 0 && last_duration < 10.0) {
1179 /* if duration of the last frame was sane, update last_duration in video state */
1180 is->frame_last_duration = last_duration;
1182 delay = compute_target_delay(is->frame_last_duration, is);
1184 time= av_gettime()/1000000.0;
1185 if (time < is->frame_timer + delay)
1189 is->frame_timer += delay * FFMAX(1, floor((time-is->frame_timer) / delay));
1191 SDL_LockMutex(is->pictq_mutex);
1192 update_video_pts(is, vp->pts, vp->pos);
1193 SDL_UnlockMutex(is->pictq_mutex);
1195 if (is->pictq_size > 1) {
1196 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1197 duration = nextvp->pts - vp->pts; // More accurate this way, 1/time_base is often not reflecting FPS
1199 duration = vp->duration;
1202 if((framedrop>0 || (framedrop && is->audio_st)) && time > is->frame_timer + duration){
1203 if(is->pictq_size > 1){
1204 is->frame_drops_late++;
1205 pictq_next_picture(is);
1210 if (is->subtitle_st) {
1211 if (is->subtitle_stream_changed) {
1212 SDL_LockMutex(is->subpq_mutex);
1214 while (is->subpq_size) {
1215 free_subpicture(&is->subpq[is->subpq_rindex]);
1217 /* update queue size and signal for next picture */
1218 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1219 is->subpq_rindex = 0;
1223 is->subtitle_stream_changed = 0;
1225 SDL_CondSignal(is->subpq_cond);
1226 SDL_UnlockMutex(is->subpq_mutex);
1228 if (is->subpq_size > 0) {
1229 sp = &is->subpq[is->subpq_rindex];
1231 if (is->subpq_size > 1)
1232 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1236 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1237 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1239 free_subpicture(sp);
1241 /* update queue size and signal for next picture */
1242 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1243 is->subpq_rindex = 0;
1245 SDL_LockMutex(is->subpq_mutex);
1247 SDL_CondSignal(is->subpq_cond);
1248 SDL_UnlockMutex(is->subpq_mutex);
1255 /* display picture */
1256 if (!display_disable)
1260 pictq_next_picture(is);
1262 } else if (is->audio_st) {
1263 /* draw the next audio frame */
1265 /* if only audio stream, then display the audio bars (better
1266 than nothing, just to test the implementation */
1268 /* display picture */
1269 if (!display_disable)
1272 is->force_refresh = 0;
1274 static int64_t last_time;
1276 int aqsize, vqsize, sqsize;
1279 cur_time = av_gettime();
1280 if (!last_time || (cur_time - last_time) >= 30000) {
1285 aqsize = is->audioq.size;
1287 vqsize = is->videoq.size;
1288 if (is->subtitle_st)
1289 sqsize = is->subtitleq.size;
1291 if (is->audio_st && is->video_st)
1292 av_diff = get_audio_clock(is) - get_video_clock(is);
1293 printf("%7.2f A-V:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1294 get_master_clock(is),
1296 is->frame_drops_early + is->frame_drops_late,
1300 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1301 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1303 last_time = cur_time;
1308 /* allocate a picture (needs to do that in main thread to avoid
1309 potential locking problems */
1310 static void alloc_picture(AllocEventProps *event_props)
1312 VideoState *is = event_props->is;
1313 AVFrame *frame = event_props->frame;
1316 vp = &is->pictq[is->pictq_windex];
1319 SDL_FreeYUVOverlay(vp->bmp);
1323 avfilter_unref_buffer(vp->picref);
1327 vp->width = frame->width;
1328 vp->height = frame->height;
1329 vp->pix_fmt = frame->format;
1331 video_open(event_props->is, 0);
1333 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1336 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1337 /* SDL allocates a buffer smaller than requested if the video
1338 * overlay hardware is unable to support the requested size. */
1339 fprintf(stderr, "Error: the video system does not support an image\n"
1340 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1341 "to reduce the image size.\n", vp->width, vp->height );
1345 SDL_LockMutex(is->pictq_mutex);
1347 SDL_CondSignal(is->pictq_cond);
1348 SDL_UnlockMutex(is->pictq_mutex);
1351 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1354 double frame_delay, pts = pts1;
1356 /* compute the exact PTS for the picture if it is omitted in the stream
1357 * pts1 is the dts of the pkt / pts of the frame */
1359 /* update video clock with pts, if present */
1360 is->video_clock = pts;
1362 pts = is->video_clock;
1364 /* update video clock for next frame */
1365 frame_delay = av_q2d(is->video_st->codec->time_base);
1366 /* for MPEG2, the frame can be repeated, so we update the
1367 clock accordingly */
1368 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1369 is->video_clock += frame_delay;
1371 #if defined(DEBUG_SYNC) && 0
1372 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1373 av_get_picture_type_char(src_frame->pict_type), pts, pts1);
1376 /* wait until we have space to put a new picture */
1377 SDL_LockMutex(is->pictq_mutex);
1379 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1380 !is->videoq.abort_request) {
1381 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1383 SDL_UnlockMutex(is->pictq_mutex);
1385 if (is->videoq.abort_request)
1388 vp = &is->pictq[is->pictq_windex];
1390 vp->duration = frame_delay;
1392 /* alloc or resize hardware picture buffer */
1393 if (!vp->bmp || vp->reallocate ||
1394 vp->width != src_frame->width ||
1395 vp->height != src_frame->height) {
1397 AllocEventProps event_props;
1399 event_props.frame = src_frame;
1400 event_props.is = is;
1405 /* the allocation must be done in the main thread to avoid
1406 locking problems. We wait in this block for the event to complete,
1407 so we can pass a pointer to event_props to it. */
1408 event.type = FF_ALLOC_EVENT;
1409 event.user.data1 = &event_props;
1410 SDL_PushEvent(&event);
1412 /* wait until the picture is allocated */
1413 SDL_LockMutex(is->pictq_mutex);
1414 while (!vp->allocated && !is->videoq.abort_request) {
1415 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1417 /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */
1418 if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) {
1419 while (!vp->allocated) {
1420 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1423 SDL_UnlockMutex(is->pictq_mutex);
1425 if (is->videoq.abort_request)
1429 /* if the frame is not skipped, then display it */
1431 AVPicture pict = { { 0 } };
1434 avfilter_unref_buffer(vp->picref);
1435 vp->picref = src_frame->opaque;
1438 /* get a pointer on the bitmap */
1439 SDL_LockYUVOverlay (vp->bmp);
1441 pict.data[0] = vp->bmp->pixels[0];
1442 pict.data[1] = vp->bmp->pixels[2];
1443 pict.data[2] = vp->bmp->pixels[1];
1445 pict.linesize[0] = vp->bmp->pitches[0];
1446 pict.linesize[1] = vp->bmp->pitches[2];
1447 pict.linesize[2] = vp->bmp->pitches[1];
1450 // FIXME use direct rendering
1451 av_picture_copy(&pict, (AVPicture *)src_frame,
1452 vp->pix_fmt, vp->width, vp->height);
1453 vp->sample_aspect_ratio = vp->picref->video->sample_aspect_ratio;
1455 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1456 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1457 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1458 PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1459 if (is->img_convert_ctx == NULL) {
1460 fprintf(stderr, "Cannot initialize the conversion context\n");
1463 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1464 0, vp->height, pict.data, pict.linesize);
1465 vp->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, src_frame);
1467 /* update the bitmap content */
1468 SDL_UnlockYUVOverlay(vp->bmp);
1474 /* now we can update the picture count */
1475 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1476 is->pictq_windex = 0;
1477 SDL_LockMutex(is->pictq_mutex);
1479 SDL_UnlockMutex(is->pictq_mutex);
1484 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1488 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1491 if (pkt->data == flush_pkt.data) {
1492 avcodec_flush_buffers(is->video_st->codec);
1494 SDL_LockMutex(is->pictq_mutex);
1495 // Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1496 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1497 is->pictq[i].skip = 1;
1499 while (is->pictq_size && !is->videoq.abort_request) {
1500 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1502 is->video_current_pos = -1;
1503 is->frame_last_pts = AV_NOPTS_VALUE;
1504 is->frame_last_duration = 0;
1505 is->frame_timer = (double)av_gettime() / 1000000.0;
1506 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1507 SDL_UnlockMutex(is->pictq_mutex);
1512 avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
1517 if (decoder_reorder_pts == -1) {
1518 *pts = av_frame_get_best_effort_timestamp(frame);
1519 } else if (decoder_reorder_pts) {
1520 *pts = frame->pkt_pts;
1522 *pts = frame->pkt_dts;
1525 if (*pts == AV_NOPTS_VALUE) {
1529 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) || is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK) &&
1530 (framedrop>0 || (framedrop && is->audio_st))) {
1531 SDL_LockMutex(is->pictq_mutex);
1532 if (is->frame_last_pts != AV_NOPTS_VALUE && *pts) {
1533 double clockdiff = get_video_clock(is) - get_master_clock(is);
1534 double dpts = av_q2d(is->video_st->time_base) * *pts;
1535 double ptsdiff = dpts - is->frame_last_pts;
1536 if (fabs(clockdiff) < AV_NOSYNC_THRESHOLD &&
1537 ptsdiff > 0 && ptsdiff < AV_NOSYNC_THRESHOLD &&
1538 clockdiff + ptsdiff - is->frame_last_filter_delay < 0) {
1539 is->frame_last_dropped_pos = pkt->pos;
1540 is->frame_last_dropped_pts = dpts;
1541 is->frame_drops_early++;
1545 SDL_UnlockMutex(is->pictq_mutex);
1549 is->frame_last_returned_time = av_gettime() / 1000000.0;
1563 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1565 AVFilterContext *ctx = codec->opaque;
1566 AVFilterBufferRef *ref;
1567 int perms = AV_PERM_WRITE;
1568 int i, w, h, stride[AV_NUM_DATA_POINTERS];
1572 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1574 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1575 perms |= AV_PERM_NEG_LINESIZES;
1577 if (pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1578 if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1579 if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1580 if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1582 if (pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1587 if(av_image_check_size(w, h, 0, codec) || codec->pix_fmt<0)
1590 avcodec_align_dimensions2(codec, &w, &h, stride);
1591 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1594 if (codec->pix_fmt != ctx->outputs[0]->format) {
1595 av_log(codec, AV_LOG_ERROR, "Pixel format mismatches %d %d\n", codec->pix_fmt, ctx->outputs[0]->format);
1598 if (!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1601 pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1 + 1;
1602 ref->video->w = codec->width;
1603 ref->video->h = codec->height;
1604 for (i = 0; i < 4; i ++) {
1605 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1606 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1608 pic->base[i] = ref->data[i];
1610 ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1612 pic->data[i] = ref->data[i];
1613 pic->linesize[i] = ref->linesize[i];
1616 pic->type = FF_BUFFER_TYPE_USER;
1617 pic->reordered_opaque = codec->reordered_opaque;
1618 pic->width = codec->width;
1619 pic->height = codec->height;
1620 pic->format = codec->pix_fmt;
1621 pic->sample_aspect_ratio = codec->sample_aspect_ratio;
1622 if (codec->pkt) pic->pkt_pts = codec->pkt->pts;
1623 else pic->pkt_pts = AV_NOPTS_VALUE;
1627 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1629 memset(pic->data, 0, sizeof(pic->data));
1630 avfilter_unref_buffer(pic->opaque);
1633 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1635 AVFilterBufferRef *ref = pic->opaque;
1637 if (pic->data[0] == NULL) {
1638 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1639 return codec->get_buffer(codec, pic);
1642 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1643 (codec->pix_fmt != ref->format)) {
1644 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1648 pic->reordered_opaque = codec->reordered_opaque;
1649 if (codec->pkt) pic->pkt_pts = codec->pkt->pts;
1650 else pic->pkt_pts = AV_NOPTS_VALUE;
1654 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1656 FilterPriv *priv = ctx->priv;
1657 AVCodecContext *codec;
1658 if (!opaque) return -1;
1661 codec = priv->is->video_st->codec;
1662 codec->opaque = ctx;
1663 if (codec->codec->capabilities & CODEC_CAP_DR1) {
1664 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1666 codec->get_buffer = input_get_buffer;
1667 codec->release_buffer = input_release_buffer;
1668 codec->reget_buffer = input_reget_buffer;
1669 codec->thread_safe_callbacks = 1;
1672 priv->frame = avcodec_alloc_frame();
1677 static void input_uninit(AVFilterContext *ctx)
1679 FilterPriv *priv = ctx->priv;
1680 av_free(priv->frame);
1683 static int input_request_frame(AVFilterLink *link)
1685 FilterPriv *priv = link->src->priv;
1686 AVFilterBufferRef *picref;
1691 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1692 av_free_packet(&pkt);
1696 if (priv->use_dr1 && priv->frame->opaque) {
1697 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1699 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, priv->frame->width, priv->frame->height);
1700 av_image_copy(picref->data, picref->linesize,
1701 (const uint8_t **)(void **)priv->frame->data, priv->frame->linesize,
1702 picref->format, priv->frame->width, priv->frame->height);
1704 av_free_packet(&pkt);
1706 avfilter_copy_frame_props(picref, priv->frame);
1707 picref->video->sample_aspect_ratio = av_guess_sample_aspect_ratio(priv->is->ic, priv->is->video_st, priv->frame);
1710 avfilter_start_frame(link, picref);
1711 avfilter_draw_slice(link, 0, picref->video->h, 1);
1712 avfilter_end_frame(link);
1717 static int input_query_formats(AVFilterContext *ctx)
1719 FilterPriv *priv = ctx->priv;
1720 enum PixelFormat pix_fmts[] = {
1721 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1724 avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
1728 static int input_config_props(AVFilterLink *link)
1730 FilterPriv *priv = link->src->priv;
1731 AVStream *s = priv->is->video_st;
1733 link->w = s->codec->width;
1734 link->h = s->codec->height;
1735 link->sample_aspect_ratio = s->sample_aspect_ratio.num ?
1736 s->sample_aspect_ratio : s->codec->sample_aspect_ratio;
1737 link->time_base = s->time_base;
1742 static AVFilter input_filter =
1744 .name = "ffplay_input",
1746 .priv_size = sizeof(FilterPriv),
1749 .uninit = input_uninit,
1751 .query_formats = input_query_formats,
1753 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1754 .outputs = (AVFilterPad[]) {{ .name = "default",
1755 .type = AVMEDIA_TYPE_VIDEO,
1756 .request_frame = input_request_frame,
1757 .config_props = input_config_props, },
1761 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1763 static const enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
1764 char sws_flags_str[128];
1766 AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
1767 AVFilterContext *filt_src = NULL, *filt_out = NULL, *filt_format;;
1768 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1769 graph->scale_sws_opts = av_strdup(sws_flags_str);
1771 if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1772 NULL, is, graph)) < 0)
1775 #if FF_API_OLD_VSINK_API
1776 ret = avfilter_graph_create_filter(&filt_out,
1777 avfilter_get_by_name("buffersink"),
1778 "out", NULL, pix_fmts, graph);
1780 buffersink_params->pixel_fmts = pix_fmts;
1781 ret = avfilter_graph_create_filter(&filt_out,
1782 avfilter_get_by_name("buffersink"),
1783 "out", NULL, buffersink_params, graph);
1785 av_freep(&buffersink_params);
1789 if ((ret = avfilter_graph_create_filter(&filt_format,
1790 avfilter_get_by_name("format"),
1791 "format", "yuv420p", NULL, graph)) < 0)
1793 if ((ret = avfilter_link(filt_format, 0, filt_out, 0)) < 0)
1798 AVFilterInOut *outputs = avfilter_inout_alloc();
1799 AVFilterInOut *inputs = avfilter_inout_alloc();
1801 outputs->name = av_strdup("in");
1802 outputs->filter_ctx = filt_src;
1803 outputs->pad_idx = 0;
1804 outputs->next = NULL;
1806 inputs->name = av_strdup("out");
1807 inputs->filter_ctx = filt_format;
1808 inputs->pad_idx = 0;
1809 inputs->next = NULL;
1811 if ((ret = avfilter_graph_parse(graph, vfilters, &inputs, &outputs, NULL)) < 0)
1814 if ((ret = avfilter_link(filt_src, 0, filt_format, 0)) < 0)
1818 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1821 is->out_video_filter = filt_out;
1826 #endif /* CONFIG_AVFILTER */
1828 static int video_thread(void *arg)
1830 VideoState *is = arg;
1831 AVFrame *frame = avcodec_alloc_frame();
1832 int64_t pts_int = AV_NOPTS_VALUE, pos = -1;
1837 AVFilterGraph *graph = avfilter_graph_alloc();
1838 AVFilterContext *filt_out = NULL;
1839 int last_w = is->video_st->codec->width;
1840 int last_h = is->video_st->codec->height;
1842 if ((ret = configure_video_filters(graph, is, vfilters)) < 0) {
1844 event.type = FF_QUIT_EVENT;
1845 event.user.data1 = is;
1846 SDL_PushEvent(&event);
1849 filt_out = is->out_video_filter;
1853 #if !CONFIG_AVFILTER
1856 AVFilterBufferRef *picref;
1857 AVRational tb = filt_out->inputs[0]->time_base;
1859 while (is->paused && !is->videoq.abort_request)
1862 if ( last_w != is->video_st->codec->width
1863 || last_h != is->video_st->codec->height) {
1864 av_log(NULL, AV_LOG_INFO, "Frame changed from size:%dx%d to size:%dx%d\n",
1865 last_w, last_h, is->video_st->codec->width, is->video_st->codec->height);
1866 avfilter_graph_free(&graph);
1867 graph = avfilter_graph_alloc();
1868 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1870 filt_out = is->out_video_filter;
1871 last_w = is->video_st->codec->width;
1872 last_h = is->video_st->codec->height;
1874 ret = av_buffersink_get_buffer_ref(filt_out, &picref, 0);
1876 avfilter_fill_frame_from_video_buffer_ref(frame, picref);
1877 pts_int = picref->pts;
1878 tb = filt_out->inputs[0]->time_base;
1880 frame->opaque = picref;
1885 if (ret >= 0 && av_cmp_q(tb, is->video_st->time_base)) {
1886 av_unused int64_t pts1 = pts_int;
1887 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1888 av_dlog(NULL, "video_thread(): "
1889 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1890 tb.num, tb.den, pts1,
1891 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1894 ret = get_video_frame(is, frame, &pts_int, &pkt);
1896 av_free_packet(&pkt);
1904 is->frame_last_filter_delay = av_gettime() / 1000000.0 - is->frame_last_returned_time;
1905 if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0)
1906 is->frame_last_filter_delay = 0;
1913 pts = pts_int * av_q2d(is->video_st->time_base);
1915 ret = queue_picture(is, frame, pts, pos);
1921 stream_toggle_pause(is);
1924 avcodec_flush_buffers(is->video_st->codec);
1926 av_freep(&vfilters);
1927 avfilter_graph_free(&graph);
1933 static int subtitle_thread(void *arg)
1935 VideoState *is = arg;
1937 AVPacket pkt1, *pkt = &pkt1;
1941 int r, g, b, y, u, v, a;
1944 while (is->paused && !is->subtitleq.abort_request) {
1947 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1950 if (pkt->data == flush_pkt.data) {
1951 avcodec_flush_buffers(is->subtitle_st->codec);
1954 SDL_LockMutex(is->subpq_mutex);
1955 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1956 !is->subtitleq.abort_request) {
1957 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1959 SDL_UnlockMutex(is->subpq_mutex);
1961 if (is->subtitleq.abort_request)
1964 sp = &is->subpq[is->subpq_windex];
1966 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1967 this packet, if any */
1969 if (pkt->pts != AV_NOPTS_VALUE)
1970 pts = av_q2d(is->subtitle_st->time_base) * pkt->pts;
1972 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1973 &got_subtitle, pkt);
1975 if (got_subtitle && sp->sub.format == 0) {
1978 for (i = 0; i < sp->sub.num_rects; i++)
1980 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1982 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1983 y = RGB_TO_Y_CCIR(r, g, b);
1984 u = RGB_TO_U_CCIR(r, g, b, 0);
1985 v = RGB_TO_V_CCIR(r, g, b, 0);
1986 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1990 /* now we can update the picture count */
1991 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1992 is->subpq_windex = 0;
1993 SDL_LockMutex(is->subpq_mutex);
1995 SDL_UnlockMutex(is->subpq_mutex);
1997 av_free_packet(pkt);
2002 /* copy samples for viewing in editor window */
2003 static void update_sample_display(VideoState *is, short *samples, int samples_size)
2007 size = samples_size / sizeof(short);
2009 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
2012 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
2014 is->sample_array_index += len;
2015 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
2016 is->sample_array_index = 0;
2021 /* return the wanted number of samples to get better sync if sync_type is video
2022 * or external master clock */
2023 static int synchronize_audio(VideoState *is, int nb_samples)
2025 int wanted_nb_samples = nb_samples;
2027 /* if not master, then we try to remove or add samples to correct the clock */
2028 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
2029 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
2030 double diff, avg_diff;
2031 int min_nb_samples, max_nb_samples;
2033 diff = get_audio_clock(is) - get_master_clock(is);
2035 if (diff < AV_NOSYNC_THRESHOLD) {
2036 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2037 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2038 /* not enough measures to have a correct estimate */
2039 is->audio_diff_avg_count++;
2041 /* estimate the A-V difference */
2042 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2044 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2045 wanted_nb_samples = nb_samples + (int)(diff * is->audio_src_freq);
2046 min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100));
2047 max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100));
2048 wanted_nb_samples = FFMIN(FFMAX(wanted_nb_samples, min_nb_samples), max_nb_samples);
2050 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2051 diff, avg_diff, wanted_nb_samples - nb_samples,
2052 is->audio_clock, is->video_clock, is->audio_diff_threshold);
2055 /* too big difference : may be initial PTS errors, so
2057 is->audio_diff_avg_count = 0;
2058 is->audio_diff_cum = 0;
2062 return wanted_nb_samples;
2065 /* decode one audio frame and returns its uncompressed size */
2066 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2068 AVPacket *pkt_temp = &is->audio_pkt_temp;
2069 AVPacket *pkt = &is->audio_pkt;
2070 AVCodecContext *dec = is->audio_st->codec;
2071 int len1, len2, data_size, resampled_data_size;
2072 int64_t dec_channel_layout;
2076 int flush_complete = 0;
2077 int wanted_nb_samples;
2080 /* NOTE: the audio packet can contain several frames */
2081 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
2083 if (!(is->frame = avcodec_alloc_frame()))
2084 return AVERROR(ENOMEM);
2086 avcodec_get_frame_defaults(is->frame);
2091 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
2093 /* if error, we skip the frame */
2098 pkt_temp->data += len1;
2099 pkt_temp->size -= len1;
2102 /* stop sending empty packets if the decoder is finished */
2103 if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
2107 data_size = av_samples_get_buffer_size(NULL, dec->channels,
2108 is->frame->nb_samples,
2109 dec->sample_fmt, 1);
2111 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);
2112 wanted_nb_samples = synchronize_audio(is, is->frame->nb_samples);
2114 if (dec->sample_fmt != is->audio_src_fmt ||
2115 dec_channel_layout != is->audio_src_channel_layout ||
2116 dec->sample_rate != is->audio_src_freq ||
2117 (wanted_nb_samples != is->frame->nb_samples && !is->swr_ctx)) {
2119 swr_free(&is->swr_ctx);
2120 is->swr_ctx = swr_alloc_set_opts(NULL,
2121 is->audio_tgt_channel_layout, is->audio_tgt_fmt, is->audio_tgt_freq,
2122 dec_channel_layout, dec->sample_fmt, dec->sample_rate,
2124 if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
2125 fprintf(stderr, "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
2127 av_get_sample_fmt_name(dec->sample_fmt),
2130 av_get_sample_fmt_name(is->audio_tgt_fmt),
2131 is->audio_tgt_channels);
2134 is->audio_src_channel_layout = dec_channel_layout;
2135 is->audio_src_channels = dec->channels;
2136 is->audio_src_freq = dec->sample_rate;
2137 is->audio_src_fmt = dec->sample_fmt;
2140 resampled_data_size = data_size;
2142 const uint8_t *in[] = { is->frame->data[0] };
2143 uint8_t *out[] = {is->audio_buf2};
2144 if (wanted_nb_samples != is->frame->nb_samples) {
2145 if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - is->frame->nb_samples) * is->audio_tgt_freq / dec->sample_rate,
2146 wanted_nb_samples * is->audio_tgt_freq / dec->sample_rate) < 0) {
2147 fprintf(stderr, "swr_set_compensation() failed\n");
2151 len2 = swr_convert(is->swr_ctx, out, sizeof(is->audio_buf2) / is->audio_tgt_channels / av_get_bytes_per_sample(is->audio_tgt_fmt),
2152 in, is->frame->nb_samples);
2154 fprintf(stderr, "audio_resample() failed\n");
2157 if (len2 == sizeof(is->audio_buf2) / is->audio_tgt_channels / av_get_bytes_per_sample(is->audio_tgt_fmt)) {
2158 fprintf(stderr, "warning: audio buffer is probably too small\n");
2159 swr_init(is->swr_ctx);
2161 is->audio_buf = is->audio_buf2;
2162 resampled_data_size = len2 * is->audio_tgt_channels * av_get_bytes_per_sample(is->audio_tgt_fmt);
2164 is->audio_buf = is->frame->data[0];
2167 /* if no pts, then compute it */
2168 pts = is->audio_clock;
2170 is->audio_clock += (double)data_size /
2171 (dec->channels * dec->sample_rate * av_get_bytes_per_sample(dec->sample_fmt));
2174 static double last_clock;
2175 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2176 is->audio_clock - last_clock,
2177 is->audio_clock, pts);
2178 last_clock = is->audio_clock;
2181 return resampled_data_size;
2184 /* free the current packet */
2186 av_free_packet(pkt);
2187 memset(pkt_temp, 0, sizeof(*pkt_temp));
2189 if (is->paused || is->audioq.abort_request) {
2193 /* read next packet */
2194 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
2197 if (pkt->data == flush_pkt.data) {
2198 avcodec_flush_buffers(dec);
2204 /* if update the audio clock with the pts */
2205 if (pkt->pts != AV_NOPTS_VALUE) {
2206 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2211 /* prepare a new audio buffer */
2212 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2214 VideoState *is = opaque;
2215 int audio_size, len1;
2217 int frame_size = av_samples_get_buffer_size(NULL, is->audio_tgt_channels, 1, is->audio_tgt_fmt, 1);
2220 audio_callback_time = av_gettime();
2223 if (is->audio_buf_index >= is->audio_buf_size) {
2224 audio_size = audio_decode_frame(is, &pts);
2225 if (audio_size < 0) {
2226 /* if error, just output silence */
2227 is->audio_buf = is->silence_buf;
2228 is->audio_buf_size = sizeof(is->silence_buf) / frame_size * frame_size;
2230 if (is->show_mode != SHOW_MODE_VIDEO)
2231 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2232 is->audio_buf_size = audio_size;
2234 is->audio_buf_index = 0;
2236 len1 = is->audio_buf_size - is->audio_buf_index;
2239 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2242 is->audio_buf_index += len1;
2244 bytes_per_sec = is->audio_tgt_freq * is->audio_tgt_channels * av_get_bytes_per_sample(is->audio_tgt_fmt);
2245 is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
2246 /* Let's assume the audio driver that is used by SDL has two periods. */
2247 is->audio_current_pts = is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec;
2248 is->audio_current_pts_drift = is->audio_current_pts - audio_callback_time / 1000000.0;
2251 /* open a given stream. Return 0 if OK */
2252 static int stream_component_open(VideoState *is, int stream_index)
2254 AVFormatContext *ic = is->ic;
2255 AVCodecContext *avctx;
2257 SDL_AudioSpec wanted_spec, spec;
2259 AVDictionaryEntry *t = NULL;
2260 int64_t wanted_channel_layout = 0;
2261 int wanted_nb_channels;
2264 if (stream_index < 0 || stream_index >= ic->nb_streams)
2266 avctx = ic->streams[stream_index]->codec;
2268 codec = avcodec_find_decoder(avctx->codec_id);
2269 opts = filter_codec_opts(codec_opts, codec, ic, ic->streams[stream_index]);
2271 switch(avctx->codec_type){
2272 case AVMEDIA_TYPE_AUDIO : is->last_audio_stream = stream_index; if(audio_codec_name ) codec= avcodec_find_decoder_by_name( audio_codec_name); break;
2273 case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; if(subtitle_codec_name) codec= avcodec_find_decoder_by_name(subtitle_codec_name); break;
2274 case AVMEDIA_TYPE_VIDEO : is->last_video_stream = stream_index; if(video_codec_name ) codec= avcodec_find_decoder_by_name( video_codec_name); break;
2279 avctx->workaround_bugs = workaround_bugs;
2280 avctx->lowres = lowres;
2281 if(avctx->lowres > codec->max_lowres){
2282 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
2284 avctx->lowres= codec->max_lowres;
2286 avctx->idct_algo = idct;
2287 avctx->skip_frame = skip_frame;
2288 avctx->skip_idct = skip_idct;
2289 avctx->skip_loop_filter = skip_loop_filter;
2290 avctx->error_concealment = error_concealment;
2292 if(avctx->lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2293 if (fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2294 if(codec->capabilities & CODEC_CAP_DR1)
2295 avctx->flags |= CODEC_FLAG_EMU_EDGE;
2297 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2298 memset(&is->audio_pkt_temp, 0, sizeof(is->audio_pkt_temp));
2299 env = SDL_getenv("SDL_AUDIO_CHANNELS");
2301 wanted_channel_layout = av_get_default_channel_layout(SDL_atoi(env));
2302 if (!wanted_channel_layout) {
2303 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);
2304 wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX;
2305 wanted_nb_channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
2306 /* SDL only supports 1, 2, 4 or 6 channels at the moment, so we have to make sure not to request anything else. */
2307 while (wanted_nb_channels > 0 && (wanted_nb_channels == 3 || wanted_nb_channels == 5 || wanted_nb_channels > 6)) {
2308 wanted_nb_channels--;
2309 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2312 wanted_spec.channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
2313 wanted_spec.freq = avctx->sample_rate;
2314 if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) {
2315 fprintf(stderr, "Invalid sample rate or channel count!\n");
2320 if (!av_dict_get(opts, "threads", NULL, 0))
2321 av_dict_set(&opts, "threads", "auto", 0);
2323 avcodec_open2(avctx, codec, &opts) < 0)
2325 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2326 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2327 return AVERROR_OPTION_NOT_FOUND;
2330 /* prepare audio output */
2331 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2332 wanted_spec.format = AUDIO_S16SYS;
2333 wanted_spec.silence = 0;
2334 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2335 wanted_spec.callback = sdl_audio_callback;
2336 wanted_spec.userdata = is;
2337 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2338 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2341 is->audio_hw_buf_size = spec.size;
2342 if (spec.format != AUDIO_S16SYS) {
2343 fprintf(stderr, "SDL advised audio format %d is not supported!\n", spec.format);
2346 if (spec.channels != wanted_spec.channels) {
2347 wanted_channel_layout = av_get_default_channel_layout(spec.channels);
2348 if (!wanted_channel_layout) {
2349 fprintf(stderr, "SDL advised channel count %d is not supported!\n", spec.channels);
2353 is->audio_src_fmt = is->audio_tgt_fmt = AV_SAMPLE_FMT_S16;
2354 is->audio_src_freq = is->audio_tgt_freq = spec.freq;
2355 is->audio_src_channel_layout = is->audio_tgt_channel_layout = wanted_channel_layout;
2356 is->audio_src_channels = is->audio_tgt_channels = spec.channels;
2359 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2360 switch (avctx->codec_type) {
2361 case AVMEDIA_TYPE_AUDIO:
2362 is->audio_stream = stream_index;
2363 is->audio_st = ic->streams[stream_index];
2364 is->audio_buf_size = 0;
2365 is->audio_buf_index = 0;
2367 /* init averaging filter */
2368 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2369 is->audio_diff_avg_count = 0;
2370 /* since we do not have a precise anough audio fifo fullness,
2371 we correct audio sync only if larger than this threshold */
2372 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / wanted_spec.freq;
2374 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2375 packet_queue_start(&is->audioq);
2378 case AVMEDIA_TYPE_VIDEO:
2379 is->video_stream = stream_index;
2380 is->video_st = ic->streams[stream_index];
2382 packet_queue_start(&is->videoq);
2383 is->video_tid = SDL_CreateThread(video_thread, is);
2385 case AVMEDIA_TYPE_SUBTITLE:
2386 is->subtitle_stream = stream_index;
2387 is->subtitle_st = ic->streams[stream_index];
2388 packet_queue_start(&is->subtitleq);
2390 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2398 static void stream_component_close(VideoState *is, int stream_index)
2400 AVFormatContext *ic = is->ic;
2401 AVCodecContext *avctx;
2403 if (stream_index < 0 || stream_index >= ic->nb_streams)
2405 avctx = ic->streams[stream_index]->codec;
2407 switch (avctx->codec_type) {
2408 case AVMEDIA_TYPE_AUDIO:
2409 packet_queue_abort(&is->audioq);
2413 packet_queue_flush(&is->audioq);
2414 av_free_packet(&is->audio_pkt);
2416 swr_free(&is->swr_ctx);
2417 av_freep(&is->audio_buf1);
2418 is->audio_buf = NULL;
2419 av_freep(&is->frame);
2422 av_rdft_end(is->rdft);
2423 av_freep(&is->rdft_data);
2428 case AVMEDIA_TYPE_VIDEO:
2429 packet_queue_abort(&is->videoq);
2431 /* note: we also signal this mutex to make sure we deblock the
2432 video thread in all cases */
2433 SDL_LockMutex(is->pictq_mutex);
2434 SDL_CondSignal(is->pictq_cond);
2435 SDL_UnlockMutex(is->pictq_mutex);
2437 SDL_WaitThread(is->video_tid, NULL);
2439 packet_queue_flush(&is->videoq);
2441 case AVMEDIA_TYPE_SUBTITLE:
2442 packet_queue_abort(&is->subtitleq);
2444 /* note: we also signal this mutex to make sure we deblock the
2445 video thread in all cases */
2446 SDL_LockMutex(is->subpq_mutex);
2447 is->subtitle_stream_changed = 1;
2449 SDL_CondSignal(is->subpq_cond);
2450 SDL_UnlockMutex(is->subpq_mutex);
2452 SDL_WaitThread(is->subtitle_tid, NULL);
2454 packet_queue_flush(&is->subtitleq);
2460 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2461 avcodec_close(avctx);
2462 switch (avctx->codec_type) {
2463 case AVMEDIA_TYPE_AUDIO:
2464 is->audio_st = NULL;
2465 is->audio_stream = -1;
2467 case AVMEDIA_TYPE_VIDEO:
2468 is->video_st = NULL;
2469 is->video_stream = -1;
2471 case AVMEDIA_TYPE_SUBTITLE:
2472 is->subtitle_st = NULL;
2473 is->subtitle_stream = -1;
2480 static int decode_interrupt_cb(void *ctx)
2482 VideoState *is = ctx;
2483 return is->abort_request;
2486 /* this thread gets the stream from the disk or the network */
2487 static int read_thread(void *arg)
2489 VideoState *is = arg;
2490 AVFormatContext *ic = NULL;
2492 int st_index[AVMEDIA_TYPE_NB];
2493 AVPacket pkt1, *pkt = &pkt1;
2495 int pkt_in_play_range = 0;
2496 AVDictionaryEntry *t;
2497 AVDictionary **opts;
2498 int orig_nb_streams;
2500 memset(st_index, -1, sizeof(st_index));
2501 is->last_video_stream = is->video_stream = -1;
2502 is->last_audio_stream = is->audio_stream = -1;
2503 is->last_subtitle_stream = is->subtitle_stream = -1;
2505 ic = avformat_alloc_context();
2506 ic->interrupt_callback.callback = decode_interrupt_cb;
2507 ic->interrupt_callback.opaque = is;
2508 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2510 print_error(is->filename, err);
2514 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2515 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2516 ret = AVERROR_OPTION_NOT_FOUND;
2522 ic->flags |= AVFMT_FLAG_GENPTS;
2524 opts = setup_find_stream_info_opts(ic, codec_opts);
2525 orig_nb_streams = ic->nb_streams;
2527 err = avformat_find_stream_info(ic, opts);
2529 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2533 for (i = 0; i < orig_nb_streams; i++)
2534 av_dict_free(&opts[i]);
2538 ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
2540 if (seek_by_bytes < 0)
2541 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2543 /* if seeking requested, we execute it */
2544 if (start_time != AV_NOPTS_VALUE) {
2547 timestamp = start_time;
2548 /* add the stream start time */
2549 if (ic->start_time != AV_NOPTS_VALUE)
2550 timestamp += ic->start_time;
2551 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2553 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2554 is->filename, (double)timestamp / AV_TIME_BASE);
2558 for (i = 0; i < ic->nb_streams; i++)
2559 ic->streams[i]->discard = AVDISCARD_ALL;
2561 st_index[AVMEDIA_TYPE_VIDEO] =
2562 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2563 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2565 st_index[AVMEDIA_TYPE_AUDIO] =
2566 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2567 wanted_stream[AVMEDIA_TYPE_AUDIO],
2568 st_index[AVMEDIA_TYPE_VIDEO],
2571 st_index[AVMEDIA_TYPE_SUBTITLE] =
2572 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2573 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2574 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2575 st_index[AVMEDIA_TYPE_AUDIO] :
2576 st_index[AVMEDIA_TYPE_VIDEO]),
2579 av_dump_format(ic, 0, is->filename, 0);
2582 is->show_mode = show_mode;
2584 /* open the streams */
2585 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2586 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2590 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2591 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2593 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2594 if (is->show_mode == SHOW_MODE_NONE)
2595 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2597 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2598 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2601 if (is->video_stream < 0 && is->audio_stream < 0) {
2602 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2608 if (is->abort_request)
2610 if (is->paused != is->last_paused) {
2611 is->last_paused = is->paused;
2613 is->read_pause_return = av_read_pause(ic);
2617 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
2619 (!strcmp(ic->iformat->name, "rtsp") ||
2620 (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) {
2621 /* wait 10 ms to avoid trying to get another packet */
2628 int64_t seek_target = is->seek_pos;
2629 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2630 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2631 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2632 // of the seek_pos/seek_rel variables
2634 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2636 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2638 if (is->audio_stream >= 0) {
2639 packet_queue_flush(&is->audioq);
2640 packet_queue_put(&is->audioq, &flush_pkt);
2642 if (is->subtitle_stream >= 0) {
2643 packet_queue_flush(&is->subtitleq);
2644 packet_queue_put(&is->subtitleq, &flush_pkt);
2646 if (is->video_stream >= 0) {
2647 packet_queue_flush(&is->videoq);
2648 packet_queue_put(&is->videoq, &flush_pkt);
2655 /* if the queue are full, no need to read more */
2656 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2657 || ( (is->audioq .nb_packets > MIN_FRAMES || is->audio_stream < 0 || is->audioq.abort_request)
2658 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0 || is->videoq.abort_request)
2659 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0 || is->subtitleq.abort_request))) {
2665 if (is->video_stream >= 0) {
2666 av_init_packet(pkt);
2669 pkt->stream_index = is->video_stream;
2670 packet_queue_put(&is->videoq, pkt);
2672 if (is->audio_stream >= 0 &&
2673 is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
2674 av_init_packet(pkt);
2677 pkt->stream_index = is->audio_stream;
2678 packet_queue_put(&is->audioq, pkt);
2681 if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) {
2682 if (loop != 1 && (!loop || --loop)) {
2683 stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2684 } else if (autoexit) {
2692 ret = av_read_frame(ic, pkt);
2694 if (ret == AVERROR_EOF || url_feof(ic->pb))
2696 if (ic->pb && ic->pb->error)
2698 SDL_Delay(100); /* wait for user event */
2701 /* check if packet is in play range specified by user, then queue, otherwise discard */
2702 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2703 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2704 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2705 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2706 <= ((double)duration / 1000000);
2707 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2708 packet_queue_put(&is->audioq, pkt);
2709 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2710 packet_queue_put(&is->videoq, pkt);
2711 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2712 packet_queue_put(&is->subtitleq, pkt);
2714 av_free_packet(pkt);
2717 /* wait until the end */
2718 while (!is->abort_request) {
2724 /* close each stream */
2725 if (is->audio_stream >= 0)
2726 stream_component_close(is, is->audio_stream);
2727 if (is->video_stream >= 0)
2728 stream_component_close(is, is->video_stream);
2729 if (is->subtitle_stream >= 0)
2730 stream_component_close(is, is->subtitle_stream);
2732 avformat_close_input(&is->ic);
2738 event.type = FF_QUIT_EVENT;
2739 event.user.data1 = is;
2740 SDL_PushEvent(&event);
2745 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2749 is = av_mallocz(sizeof(VideoState));
2752 av_strlcpy(is->filename, filename, sizeof(is->filename));
2753 is->iformat = iformat;
2757 /* start video display */
2758 is->pictq_mutex = SDL_CreateMutex();
2759 is->pictq_cond = SDL_CreateCond();
2761 is->subpq_mutex = SDL_CreateMutex();
2762 is->subpq_cond = SDL_CreateCond();
2764 packet_queue_init(&is->videoq);
2765 packet_queue_init(&is->audioq);
2766 packet_queue_init(&is->subtitleq);
2768 is->av_sync_type = av_sync_type;
2769 is->read_tid = SDL_CreateThread(read_thread, is);
2770 if (!is->read_tid) {
2777 static void stream_cycle_channel(VideoState *is, int codec_type)
2779 AVFormatContext *ic = is->ic;
2780 int start_index, stream_index;
2784 if (codec_type == AVMEDIA_TYPE_VIDEO) {
2785 start_index = is->last_video_stream;
2786 old_index = is->video_stream;
2787 } else if (codec_type == AVMEDIA_TYPE_AUDIO) {
2788 start_index = is->last_audio_stream;
2789 old_index = is->audio_stream;
2791 start_index = is->last_subtitle_stream;
2792 old_index = is->subtitle_stream;
2794 stream_index = start_index;
2796 if (++stream_index >= is->ic->nb_streams)
2798 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2801 is->last_subtitle_stream = -1;
2804 if (start_index == -1)
2808 if (stream_index == start_index)
2810 st = ic->streams[stream_index];
2811 if (st->codec->codec_type == codec_type) {
2812 /* check that parameters are OK */
2813 switch (codec_type) {
2814 case AVMEDIA_TYPE_AUDIO:
2815 if (st->codec->sample_rate != 0 &&
2816 st->codec->channels != 0)
2819 case AVMEDIA_TYPE_VIDEO:
2820 case AVMEDIA_TYPE_SUBTITLE:
2828 stream_component_close(is, old_index);
2829 stream_component_open(is, stream_index);
2833 static void toggle_full_screen(VideoState *is)
2836 is_full_screen = !is_full_screen;
2837 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2838 /* OS X needs to reallocate the SDL overlays */
2839 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
2840 is->pictq[i].reallocate = 1;
2846 static void toggle_pause(VideoState *is)
2848 stream_toggle_pause(is);
2852 static void step_to_next_frame(VideoState *is)
2854 /* if the stream is paused unpause it, then step */
2856 stream_toggle_pause(is);
2860 static void toggle_audio_display(VideoState *is)
2862 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2863 is->show_mode = (is->show_mode + 1) % SHOW_MODE_NB;
2864 fill_rectangle(screen,
2865 is->xleft, is->ytop, is->width, is->height,
2867 SDL_UpdateRect(screen, is->xleft, is->ytop, is->width, is->height);
2870 /* handle an event sent by the GUI */
2871 static void event_loop(VideoState *cur_stream)
2874 double incr, pos, frac;
2878 SDL_WaitEvent(&event);
2879 switch (event.type) {
2881 if (exit_on_keydown) {
2882 do_exit(cur_stream);
2885 switch (event.key.keysym.sym) {
2888 do_exit(cur_stream);
2891 toggle_full_screen(cur_stream);
2892 cur_stream->force_refresh = 1;
2896 toggle_pause(cur_stream);
2898 case SDLK_s: // S: Step to next frame
2899 step_to_next_frame(cur_stream);
2902 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2905 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2908 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2911 toggle_audio_display(cur_stream);
2912 cur_stream->force_refresh = 1;
2932 if (seek_by_bytes) {
2933 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) {
2934 pos = cur_stream->video_current_pos;
2935 } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) {
2936 pos = cur_stream->audio_pkt.pos;
2938 pos = avio_tell(cur_stream->ic->pb);
2939 if (cur_stream->ic->bit_rate)
2940 incr *= cur_stream->ic->bit_rate / 8.0;
2944 stream_seek(cur_stream, pos, incr, 1);
2946 pos = get_master_clock(cur_stream);
2948 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2955 case SDL_VIDEOEXPOSE:
2956 cur_stream->force_refresh = 1;
2958 case SDL_MOUSEBUTTONDOWN:
2959 if (exit_on_mousedown) {
2960 do_exit(cur_stream);
2963 case SDL_MOUSEMOTION:
2964 if (event.type == SDL_MOUSEBUTTONDOWN) {
2967 if (event.motion.state != SDL_PRESSED)
2971 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
2972 uint64_t size = avio_size(cur_stream->ic->pb);
2973 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2977 int tns, thh, tmm, tss;
2978 tns = cur_stream->ic->duration / 1000000LL;
2980 tmm = (tns % 3600) / 60;
2982 frac = x / cur_stream->width;
2985 mm = (ns % 3600) / 60;
2987 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2988 hh, mm, ss, thh, tmm, tss);
2989 ts = frac * cur_stream->ic->duration;
2990 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2991 ts += cur_stream->ic->start_time;
2992 stream_seek(cur_stream, ts, 0, 0);
2995 case SDL_VIDEORESIZE:
2996 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2997 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2998 screen_width = cur_stream->width = event.resize.w;
2999 screen_height = cur_stream->height = event.resize.h;
3000 cur_stream->force_refresh = 1;
3004 do_exit(cur_stream);
3006 case FF_ALLOC_EVENT:
3007 alloc_picture(event.user.data1);
3009 case FF_REFRESH_EVENT:
3010 video_refresh(event.user.data1);
3011 cur_stream->refresh = 0;
3019 static int opt_frame_size(const char *opt, const char *arg)
3021 av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
3022 return opt_default("video_size", arg);
3025 static int opt_width(const char *opt, const char *arg)
3027 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
3031 static int opt_height(const char *opt, const char *arg)
3033 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
3037 static int opt_format(const char *opt, const char *arg)
3039 file_iformat = av_find_input_format(arg);
3040 if (!file_iformat) {
3041 fprintf(stderr, "Unknown input format: %s\n", arg);
3042 return AVERROR(EINVAL);
3047 static int opt_frame_pix_fmt(const char *opt, const char *arg)
3049 av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
3050 return opt_default("pixel_format", arg);
3053 static int opt_sync(const char *opt, const char *arg)
3055 if (!strcmp(arg, "audio"))
3056 av_sync_type = AV_SYNC_AUDIO_MASTER;
3057 else if (!strcmp(arg, "video"))
3058 av_sync_type = AV_SYNC_VIDEO_MASTER;
3059 else if (!strcmp(arg, "ext"))
3060 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
3062 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
3068 static int opt_seek(const char *opt, const char *arg)
3070 start_time = parse_time_or_die(opt, arg, 1);
3074 static int opt_duration(const char *opt, const char *arg)
3076 duration = parse_time_or_die(opt, arg, 1);
3080 static int opt_show_mode(const char *opt, const char *arg)
3082 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
3083 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
3084 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
3085 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
3089 static void opt_input_file(void *optctx, const char *filename)
3091 if (input_filename) {
3092 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3093 filename, input_filename);
3096 if (!strcmp(filename, "-"))
3098 input_filename = filename;
3101 static int opt_codec(void *o, const char *opt, const char *arg)
3103 switch(opt[strlen(opt)-1]){
3104 case 'a' : audio_codec_name = arg; break;
3105 case 's' : subtitle_codec_name = arg; break;
3106 case 'v' : video_codec_name = arg; break;
3113 static const OptionDef options[] = {
3114 #include "cmdutils_common_opts.h"
3115 { "x", HAS_ARG, { (void*)opt_width }, "force displayed width", "width" },
3116 { "y", HAS_ARG, { (void*)opt_height }, "force displayed height", "height" },
3117 { "s", HAS_ARG | OPT_VIDEO, { (void*)opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
3118 { "fs", OPT_BOOL, { (void*)&is_full_screen }, "force full screen" },
3119 { "an", OPT_BOOL, { (void*)&audio_disable }, "disable audio" },
3120 { "vn", OPT_BOOL, { (void*)&video_disable }, "disable video" },
3121 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
3122 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
3123 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
3124 { "ss", HAS_ARG, { (void*)&opt_seek }, "seek to a given position in seconds", "pos" },
3125 { "t", HAS_ARG, { (void*)&opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
3126 { "bytes", OPT_INT | HAS_ARG, { (void*)&seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
3127 { "nodisp", OPT_BOOL, { (void*)&display_disable }, "disable graphical display" },
3128 { "f", HAS_ARG, { (void*)opt_format }, "force format", "fmt" },
3129 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { (void*)opt_frame_pix_fmt }, "set pixel format", "format" },
3130 { "stats", OPT_BOOL | OPT_EXPERT, { (void*)&show_status }, "show status", "" },
3131 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&workaround_bugs }, "workaround bugs", "" },
3132 { "fast", OPT_BOOL | OPT_EXPERT, { (void*)&fast }, "non spec compliant optimizations", "" },
3133 { "genpts", OPT_BOOL | OPT_EXPERT, { (void*)&genpts }, "generate pts", "" },
3134 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3135 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&lowres }, "", "" },
3136 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_loop_filter }, "", "" },
3137 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_frame }, "", "" },
3138 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_idct }, "", "" },
3139 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&idct }, "set idct algo", "algo" },
3140 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&error_concealment }, "set error concealment options", "bit_mask" },
3141 { "sync", HAS_ARG | OPT_EXPERT, { (void*)opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
3142 { "autoexit", OPT_BOOL | OPT_EXPERT, { (void*)&autoexit }, "exit at the end", "" },
3143 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_keydown }, "exit on key down", "" },
3144 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_mousedown }, "exit on mouse down", "" },
3145 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&loop }, "set number of times the playback shall be looped", "loop count" },
3146 { "framedrop", OPT_BOOL | OPT_EXPERT, { (void*)&framedrop }, "drop frames when cpu is too slow", "" },
3147 { "window_title", OPT_STRING | HAS_ARG, { (void*)&window_title }, "set window title", "window title" },
3149 { "vf", OPT_STRING | HAS_ARG, { (void*)&vfilters }, "video filters", "filter list" },
3151 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { (void*)&rdftspeed }, "rdft speed", "msecs" },
3152 { "showmode", HAS_ARG, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
3153 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { (void*)opt_default }, "generic catch all option", "" },
3154 { "i", OPT_BOOL, {(void *)&dummy}, "read specified file", "input_file"},
3155 { "codec", HAS_ARG | OPT_FUNC2, {(void*)opt_codec}, "force decoder", "decoder" },
3159 static void show_usage(void)
3161 av_log(NULL, AV_LOG_INFO, "Simple media player\n");
3162 av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name);
3163 av_log(NULL, AV_LOG_INFO, "\n");
3166 static int opt_help(const char *opt, const char *arg)
3168 av_log_set_callback(log_callback_help);
3170 show_help_options(options, "Main options:\n",
3172 show_help_options(options, "\nAdvanced options:\n",
3173 OPT_EXPERT, OPT_EXPERT);
3175 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3176 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3177 #if !CONFIG_AVFILTER
3178 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3180 printf("\nWhile playing:\n"
3182 "f toggle full screen\n"
3184 "a cycle audio channel\n"
3185 "v cycle video channel\n"
3186 "t cycle subtitle channel\n"
3187 "w show audio waves\n"
3188 "s activate frame-step mode\n"
3189 "left/right seek backward/forward 10 seconds\n"
3190 "down/up seek backward/forward 1 minute\n"
3191 "page down/page up seek backward/forward 10 minutes\n"
3192 "mouse click seek to percentage in file corresponding to fraction of width\n"
3197 static int lockmgr(void **mtx, enum AVLockOp op)
3200 case AV_LOCK_CREATE:
3201 *mtx = SDL_CreateMutex();
3205 case AV_LOCK_OBTAIN:
3206 return !!SDL_LockMutex(*mtx);
3207 case AV_LOCK_RELEASE:
3208 return !!SDL_UnlockMutex(*mtx);
3209 case AV_LOCK_DESTROY:
3210 SDL_DestroyMutex(*mtx);
3216 /* Called from the main */
3217 int main(int argc, char **argv)
3222 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3223 parse_loglevel(argc, argv, options);
3225 /* register all codecs, demux and protocols */
3226 avcodec_register_all();
3228 avdevice_register_all();
3231 avfilter_register_all();
3234 avformat_network_init();
3238 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
3239 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
3241 show_banner(argc, argv, options);
3243 parse_options(NULL, argc, argv, options, opt_input_file);
3245 if (!input_filename) {
3247 fprintf(stderr, "An input file must be specified\n");
3248 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3252 if (display_disable) {
3255 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3257 flags &= ~SDL_INIT_AUDIO;
3258 #if !defined(__MINGW32__) && !defined(__APPLE__)
3259 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3261 if (SDL_Init (flags)) {
3262 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3263 fprintf(stderr, "(Did you set the DISPLAY variable?)\n");
3267 if (!display_disable) {
3268 #if HAVE_SDL_VIDEO_SIZE
3269 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3270 fs_screen_width = vi->current_w;
3271 fs_screen_height = vi->current_h;
3275 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3276 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3277 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3279 if (av_lockmgr_register(lockmgr)) {
3280 fprintf(stderr, "Could not initialize lock manager!\n");
3284 av_init_packet(&flush_pkt);
3285 flush_pkt.data = (char *)(intptr_t)"FLUSH";
3287 is = stream_open(input_filename, file_iformat);
3289 fprintf(stderr, "Failed to initialize VideoState!\n");