2 * avplay : Simple Media Player based on the Libav libraries
3 * Copyright (c) 2003 Fabrice Bellard
5 * This file is part of Libav.
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavutil/avstring.h"
27 #include "libavutil/colorspace.h"
28 #include "libavutil/mathematics.h"
29 #include "libavutil/pixdesc.h"
30 #include "libavutil/imgutils.h"
31 #include "libavutil/dict.h"
32 #include "libavutil/parseutils.h"
33 #include "libavutil/samplefmt.h"
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavresample/avresample.h"
38 #include "libavutil/opt.h"
39 #include "libavcodec/avfft.h"
42 # include "libavfilter/avfilter.h"
43 # include "libavfilter/avfiltergraph.h"
44 # include "libavfilter/buffersink.h"
50 #include <SDL_thread.h>
53 #undef main /* We don't want SDL to override our main() */
59 const char program_name[] = "avplay";
60 const int program_birth_year = 2003;
62 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
63 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
66 /* SDL audio buffer size, in samples. Should be small to have precise
67 A/V sync as SDL does not have hardware buffer fullness info. */
68 #define SDL_AUDIO_BUFFER_SIZE 1024
70 /* no AV sync correction is done if below the AV sync threshold */
71 #define AV_SYNC_THRESHOLD 0.01
72 /* no AV correction is done if too big error */
73 #define AV_NOSYNC_THRESHOLD 10.0
75 #define FRAME_SKIP_FACTOR 0.05
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 target_clock; ///< av_gettime() time at which this should be displayed ideally
103 int64_t pos; ///< byte position in file
105 int width, height; /* source height & width */
108 enum PixelFormat pix_fmt;
111 AVFilterBufferRef *picref;
115 typedef struct SubPicture {
116 double pts; /* presentation time stamp for this picture */
121 AV_SYNC_AUDIO_MASTER, /* default choice */
122 AV_SYNC_VIDEO_MASTER,
123 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
126 typedef struct VideoState {
127 SDL_Thread *parse_tid;
128 SDL_Thread *video_tid;
129 SDL_Thread *refresh_tid;
130 AVInputFormat *iformat;
139 int read_pause_return;
145 double external_clock; /* external clock base */
146 int64_t external_clock_time;
149 double audio_diff_cum; /* used for AV difference average computation */
150 double audio_diff_avg_coef;
151 double audio_diff_threshold;
152 int audio_diff_avg_count;
155 int audio_hw_buf_size;
156 uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
159 unsigned int audio_buf_size; /* in bytes */
160 int audio_buf_index; /* in bytes */
161 AVPacket audio_pkt_temp;
163 enum AVSampleFormat sdl_sample_fmt;
164 uint64_t sdl_channel_layout;
166 enum AVSampleFormat resample_sample_fmt;
167 uint64_t resample_channel_layout;
168 AVAudioResampleContext *avr;
171 int show_audio; /* if true, display audio samples */
172 int16_t sample_array[SAMPLE_ARRAY_SIZE];
173 int sample_array_index;
177 FFTSample *rdft_data;
180 SDL_Thread *subtitle_tid;
182 int subtitle_stream_changed;
183 AVStream *subtitle_st;
184 PacketQueue subtitleq;
185 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
186 int subpq_size, subpq_rindex, subpq_windex;
187 SDL_mutex *subpq_mutex;
188 SDL_cond *subpq_cond;
191 double frame_last_pts;
192 double frame_last_delay;
193 double video_clock; ///< pts of last decoded frame / predicted pts of next decoded frame
197 double video_current_pts; ///< current displayed pts (different from video_clock if frame fifos are used)
198 double video_current_pts_drift; ///< video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
199 int64_t video_current_pos; ///< current displayed file pos
200 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
201 int pictq_size, pictq_rindex, pictq_windex;
202 SDL_mutex *pictq_mutex;
203 SDL_cond *pictq_cond;
205 struct SwsContext *img_convert_ctx;
208 // QETimer *video_timer;
210 int width, height, xleft, ytop;
212 PtsCorrectionContext pts_ctx;
215 AVFilterContext *out_video_filter; ///< the last filter in the video chain
219 float skip_frames_index;
223 static void show_help(void);
225 /* options specified by the user */
226 static AVInputFormat *file_iformat;
227 static const char *input_filename;
228 static const char *window_title;
229 static int fs_screen_width;
230 static int fs_screen_height;
231 static int screen_width = 0;
232 static int screen_height = 0;
233 static int audio_disable;
234 static int video_disable;
235 static int wanted_stream[AVMEDIA_TYPE_NB] = {
236 [AVMEDIA_TYPE_AUDIO] = -1,
237 [AVMEDIA_TYPE_VIDEO] = -1,
238 [AVMEDIA_TYPE_SUBTITLE] = -1,
240 static int seek_by_bytes = -1;
241 static int display_disable;
242 static int show_status = 1;
243 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
244 static int64_t start_time = AV_NOPTS_VALUE;
245 static int64_t duration = AV_NOPTS_VALUE;
246 static int debug = 0;
247 static int debug_mv = 0;
249 static int workaround_bugs = 1;
251 static int genpts = 0;
252 static int idct = FF_IDCT_AUTO;
253 static enum AVDiscard skip_frame = AVDISCARD_DEFAULT;
254 static enum AVDiscard skip_idct = AVDISCARD_DEFAULT;
255 static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT;
256 static int error_concealment = 3;
257 static int decoder_reorder_pts = -1;
259 static int exit_on_keydown;
260 static int exit_on_mousedown;
262 static int framedrop = 1;
264 static int rdftspeed = 20;
266 static char *vfilters = NULL;
269 /* current context */
270 static int is_full_screen;
271 static VideoState *cur_stream;
272 static int64_t audio_callback_time;
274 static AVPacket flush_pkt;
276 #define FF_ALLOC_EVENT (SDL_USEREVENT)
277 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
278 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
280 static SDL_Surface *screen;
282 void exit_program(int ret)
287 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
289 /* packet queue handling */
290 static void packet_queue_init(PacketQueue *q)
292 memset(q, 0, sizeof(PacketQueue));
293 q->mutex = SDL_CreateMutex();
294 q->cond = SDL_CreateCond();
295 packet_queue_put(q, &flush_pkt);
298 static void packet_queue_flush(PacketQueue *q)
300 AVPacketList *pkt, *pkt1;
302 SDL_LockMutex(q->mutex);
303 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
305 av_free_packet(&pkt->pkt);
312 SDL_UnlockMutex(q->mutex);
315 static void packet_queue_end(PacketQueue *q)
317 packet_queue_flush(q);
318 SDL_DestroyMutex(q->mutex);
319 SDL_DestroyCond(q->cond);
322 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
326 /* duplicate the packet */
327 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
330 pkt1 = av_malloc(sizeof(AVPacketList));
337 SDL_LockMutex(q->mutex);
343 q->last_pkt->next = pkt1;
346 q->size += pkt1->pkt.size + sizeof(*pkt1);
347 /* XXX: should duplicate packet data in DV case */
348 SDL_CondSignal(q->cond);
350 SDL_UnlockMutex(q->mutex);
354 static void packet_queue_abort(PacketQueue *q)
356 SDL_LockMutex(q->mutex);
358 q->abort_request = 1;
360 SDL_CondSignal(q->cond);
362 SDL_UnlockMutex(q->mutex);
365 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
366 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
371 SDL_LockMutex(q->mutex);
374 if (q->abort_request) {
381 q->first_pkt = pkt1->next;
385 q->size -= pkt1->pkt.size + sizeof(*pkt1);
394 SDL_CondWait(q->cond, q->mutex);
397 SDL_UnlockMutex(q->mutex);
401 static inline void fill_rectangle(SDL_Surface *screen,
402 int x, int y, int w, int h, int color)
409 SDL_FillRect(screen, &rect, color);
412 #define ALPHA_BLEND(a, oldp, newp, s)\
413 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
415 #define RGBA_IN(r, g, b, a, s)\
417 unsigned int v = ((const uint32_t *)(s))[0];\
418 a = (v >> 24) & 0xff;\
419 r = (v >> 16) & 0xff;\
420 g = (v >> 8) & 0xff;\
424 #define YUVA_IN(y, u, v, a, s, pal)\
426 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
427 a = (val >> 24) & 0xff;\
428 y = (val >> 16) & 0xff;\
429 u = (val >> 8) & 0xff;\
433 #define YUVA_OUT(d, y, u, v, a)\
435 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
441 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
443 int wrap, wrap3, width2, skip2;
444 int y, u, v, a, u1, v1, a1, w, h;
445 uint8_t *lum, *cb, *cr;
448 int dstx, dsty, dstw, dsth;
450 dstw = av_clip(rect->w, 0, imgw);
451 dsth = av_clip(rect->h, 0, imgh);
452 dstx = av_clip(rect->x, 0, imgw - dstw);
453 dsty = av_clip(rect->y, 0, imgh - dsth);
454 lum = dst->data[0] + dsty * dst->linesize[0];
455 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
456 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
458 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
460 wrap = dst->linesize[0];
461 wrap3 = rect->pict.linesize[0];
462 p = rect->pict.data[0];
463 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
471 YUVA_IN(y, u, v, a, p, pal);
472 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
473 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
474 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
480 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
481 YUVA_IN(y, u, v, a, p, pal);
485 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
487 YUVA_IN(y, u, v, a, p + BPP, pal);
491 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
492 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
493 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
500 YUVA_IN(y, u, v, a, p, pal);
501 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
502 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
503 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
507 p += wrap3 - dstw * BPP;
508 lum += wrap - dstw - dstx;
509 cb += dst->linesize[1] - width2 - skip2;
510 cr += dst->linesize[2] - width2 - skip2;
512 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
518 YUVA_IN(y, u, v, a, p, pal);
522 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
525 YUVA_IN(y, u, v, a, p, pal);
529 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
530 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
531 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
537 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
538 YUVA_IN(y, u, v, a, p, pal);
542 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
544 YUVA_IN(y, u, v, a, p + BPP, pal);
548 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
552 YUVA_IN(y, u, v, a, p, pal);
556 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
558 YUVA_IN(y, u, v, a, p + BPP, pal);
562 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
564 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
565 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
569 p += -wrap3 + 2 * BPP;
573 YUVA_IN(y, u, v, a, p, pal);
577 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
580 YUVA_IN(y, u, v, a, p, pal);
584 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
585 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
586 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
592 p += wrap3 + (wrap3 - dstw * BPP);
593 lum += wrap + (wrap - dstw - dstx);
594 cb += dst->linesize[1] - width2 - skip2;
595 cr += dst->linesize[2] - width2 - skip2;
597 /* handle odd height */
604 YUVA_IN(y, u, v, a, p, pal);
605 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
606 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
607 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
613 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
614 YUVA_IN(y, u, v, a, p, pal);
618 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
620 YUVA_IN(y, u, v, a, p + BPP, pal);
624 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
625 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
626 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
633 YUVA_IN(y, u, v, a, p, pal);
634 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
635 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
636 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
641 static void free_subpicture(SubPicture *sp)
643 avsubtitle_free(&sp->sub);
646 static void video_image_display(VideoState *is)
652 int width, height, x, y;
656 vp = &is->pictq[is->pictq_rindex];
659 if (vp->picref->video->pixel_aspect.num == 0)
662 aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
665 /* XXX: use variable in the frame */
666 if (is->video_st->sample_aspect_ratio.num)
667 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
668 else if (is->video_st->codec->sample_aspect_ratio.num)
669 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
673 if (aspect_ratio <= 0.0)
675 aspect_ratio *= (float)vp->width / (float)vp->height;
679 if (is->subpq_size > 0)
681 sp = &is->subpq[is->subpq_rindex];
683 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
685 SDL_LockYUVOverlay (vp->bmp);
687 pict.data[0] = vp->bmp->pixels[0];
688 pict.data[1] = vp->bmp->pixels[2];
689 pict.data[2] = vp->bmp->pixels[1];
691 pict.linesize[0] = vp->bmp->pitches[0];
692 pict.linesize[1] = vp->bmp->pitches[2];
693 pict.linesize[2] = vp->bmp->pitches[1];
695 for (i = 0; i < sp->sub.num_rects; i++)
696 blend_subrect(&pict, sp->sub.rects[i],
697 vp->bmp->w, vp->bmp->h);
699 SDL_UnlockYUVOverlay (vp->bmp);
705 /* XXX: we suppose the screen has a 1.0 pixel ratio */
707 width = ((int)rint(height * aspect_ratio)) & ~1;
708 if (width > is->width) {
710 height = ((int)rint(width / aspect_ratio)) & ~1;
712 x = (is->width - width) / 2;
713 y = (is->height - height) / 2;
714 is->no_background = 0;
715 rect.x = is->xleft + x;
716 rect.y = is->ytop + y;
719 SDL_DisplayYUVOverlay(vp->bmp, &rect);
723 /* get the current audio output buffer size, in samples. With SDL, we
724 cannot have a precise information */
725 static int audio_write_get_buf_size(VideoState *is)
727 return is->audio_buf_size - is->audio_buf_index;
730 static inline int compute_mod(int a, int b)
739 static void video_audio_display(VideoState *s)
741 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
742 int ch, channels, h, h2, bgcolor, fgcolor;
744 int rdft_bits, nb_freq;
746 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
748 nb_freq = 1 << (rdft_bits - 1);
750 /* compute display index : center on currently output samples */
751 channels = s->sdl_channels;
752 nb_display_channels = channels;
754 int data_used = s->show_audio == 1 ? s->width : (2 * nb_freq);
756 delay = audio_write_get_buf_size(s);
759 /* to be more precise, we take into account the time spent since
760 the last buffer computation */
761 if (audio_callback_time) {
762 time_diff = av_gettime() - audio_callback_time;
763 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
766 delay += 2 * data_used;
767 if (delay < data_used)
770 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
771 if (s->show_audio == 1) {
773 for (i = 0; i < 1000; i += channels) {
774 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
775 int a = s->sample_array[idx];
776 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
777 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
778 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
780 if (h < score && (b ^ c) < 0) {
787 s->last_i_start = i_start;
789 i_start = s->last_i_start;
792 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
793 if (s->show_audio == 1) {
794 fill_rectangle(screen,
795 s->xleft, s->ytop, s->width, s->height,
798 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
800 /* total height for one channel */
801 h = s->height / nb_display_channels;
802 /* graph height / 2 */
804 for (ch = 0; ch < nb_display_channels; ch++) {
806 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
807 for (x = 0; x < s->width; x++) {
808 y = (s->sample_array[i] * h2) >> 15;
815 fill_rectangle(screen,
816 s->xleft + x, ys, 1, y,
819 if (i >= SAMPLE_ARRAY_SIZE)
820 i -= SAMPLE_ARRAY_SIZE;
824 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
826 for (ch = 1; ch < nb_display_channels; ch++) {
827 y = s->ytop + ch * h;
828 fill_rectangle(screen,
829 s->xleft, y, s->width, 1,
832 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
834 nb_display_channels= FFMIN(nb_display_channels, 2);
835 if (rdft_bits != s->rdft_bits) {
836 av_rdft_end(s->rdft);
837 av_free(s->rdft_data);
838 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
839 s->rdft_bits = rdft_bits;
840 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
844 for (ch = 0; ch < nb_display_channels; ch++) {
845 data[ch] = s->rdft_data + 2 * nb_freq * ch;
847 for (x = 0; x < 2 * nb_freq; x++) {
848 double w = (x-nb_freq) * (1.0 / nb_freq);
849 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
851 if (i >= SAMPLE_ARRAY_SIZE)
852 i -= SAMPLE_ARRAY_SIZE;
854 av_rdft_calc(s->rdft, data[ch]);
856 // least efficient way to do this, we should of course directly access it but its more than fast enough
857 for (y = 0; y < s->height; y++) {
858 double w = 1 / sqrt(nb_freq);
859 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]));
860 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
861 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
864 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
866 fill_rectangle(screen,
867 s->xpos, s->height-y, 1, 1,
871 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
873 if (s->xpos >= s->width)
878 static int video_open(VideoState *is)
880 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
883 if (is_full_screen) flags |= SDL_FULLSCREEN;
884 else flags |= SDL_RESIZABLE;
886 if (is_full_screen && fs_screen_width) {
888 h = fs_screen_height;
889 } else if (!is_full_screen && screen_width) {
893 } else if (is->out_video_filter && is->out_video_filter->inputs[0]) {
894 w = is->out_video_filter->inputs[0]->w;
895 h = is->out_video_filter->inputs[0]->h;
897 } else if (is->video_st && is->video_st->codec->width) {
898 w = is->video_st->codec->width;
899 h = is->video_st->codec->height;
905 if (screen && is->width == screen->w && screen->w == w
906 && is->height== screen->h && screen->h == h)
909 #if defined(__APPLE__) && !SDL_VERSION_ATLEAST(1, 2, 14)
910 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X and older SDL */
911 screen = SDL_SetVideoMode(w, h, 24, flags);
913 screen = SDL_SetVideoMode(w, h, 0, flags);
916 fprintf(stderr, "SDL: could not set video mode - exiting\n");
920 window_title = input_filename;
921 SDL_WM_SetCaption(window_title, window_title);
923 is->width = screen->w;
924 is->height = screen->h;
929 /* display the current picture, if any */
930 static void video_display(VideoState *is)
933 video_open(cur_stream);
934 if (is->audio_st && is->show_audio)
935 video_audio_display(is);
936 else if (is->video_st)
937 video_image_display(is);
940 static int refresh_thread(void *opaque)
942 VideoState *is= opaque;
943 while (!is->abort_request) {
945 event.type = FF_REFRESH_EVENT;
946 event.user.data1 = opaque;
949 SDL_PushEvent(&event);
951 usleep(is->audio_st && is->show_audio ? rdftspeed * 1000 : 5000); // FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
956 /* get the current audio clock value */
957 static double get_audio_clock(VideoState *is)
960 int hw_buf_size, bytes_per_sec;
961 pts = is->audio_clock;
962 hw_buf_size = audio_write_get_buf_size(is);
965 bytes_per_sec = is->audio_st->codec->sample_rate * is->sdl_channels *
966 av_get_bytes_per_sample(is->sdl_sample_fmt);
969 pts -= (double)hw_buf_size / bytes_per_sec;
973 /* get the current video clock value */
974 static double get_video_clock(VideoState *is)
977 return is->video_current_pts;
979 return is->video_current_pts_drift + av_gettime() / 1000000.0;
983 /* get the current external clock value */
984 static double get_external_clock(VideoState *is)
988 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
991 /* get the current master clock value */
992 static double get_master_clock(VideoState *is)
996 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
998 val = get_video_clock(is);
1000 val = get_audio_clock(is);
1001 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1003 val = get_audio_clock(is);
1005 val = get_video_clock(is);
1007 val = get_external_clock(is);
1012 /* seek in the stream */
1013 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1015 if (!is->seek_req) {
1018 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1020 is->seek_flags |= AVSEEK_FLAG_BYTE;
1025 /* pause or resume the video */
1026 static void stream_pause(VideoState *is)
1029 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1030 if (is->read_pause_return != AVERROR(ENOSYS)) {
1031 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1033 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1035 is->paused = !is->paused;
1038 static double compute_target_time(double frame_current_pts, VideoState *is)
1040 double delay, sync_threshold, diff;
1042 /* compute nominal delay */
1043 delay = frame_current_pts - is->frame_last_pts;
1044 if (delay <= 0 || delay >= 10.0) {
1045 /* if incorrect delay, use previous one */
1046 delay = is->frame_last_delay;
1048 is->frame_last_delay = delay;
1050 is->frame_last_pts = frame_current_pts;
1052 /* update delay to follow master synchronisation source */
1053 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1054 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1055 /* if video is slave, we try to correct big delays by
1056 duplicating or deleting a frame */
1057 diff = get_video_clock(is) - get_master_clock(is);
1059 /* skip or repeat frame. We take into account the
1060 delay to compute the threshold. I still don't know
1061 if it is the best guess */
1062 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1063 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1064 if (diff <= -sync_threshold)
1066 else if (diff >= sync_threshold)
1070 is->frame_timer += delay;
1072 av_dlog(NULL, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
1073 delay, frame_current_pts, -diff);
1075 return is->frame_timer;
1078 /* called to display each frame */
1079 static void video_refresh_timer(void *opaque)
1081 VideoState *is = opaque;
1084 SubPicture *sp, *sp2;
1088 if (is->pictq_size == 0) {
1089 // nothing to do, no picture to display in the que
1091 double time = av_gettime() / 1000000.0;
1093 /* dequeue the picture */
1094 vp = &is->pictq[is->pictq_rindex];
1096 if (time < vp->target_clock)
1098 /* update current video pts */
1099 is->video_current_pts = vp->pts;
1100 is->video_current_pts_drift = is->video_current_pts - time;
1101 is->video_current_pos = vp->pos;
1102 if (is->pictq_size > 1) {
1103 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1104 assert(nextvp->target_clock >= vp->target_clock);
1105 next_target= nextvp->target_clock;
1107 next_target = vp->target_clock + is->video_clock - vp->pts; // FIXME pass durations cleanly
1109 if (framedrop && time > next_target) {
1110 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1111 if (is->pictq_size > 1 || time > next_target + 0.5) {
1112 /* update queue size and signal for next picture */
1113 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1114 is->pictq_rindex = 0;
1116 SDL_LockMutex(is->pictq_mutex);
1118 SDL_CondSignal(is->pictq_cond);
1119 SDL_UnlockMutex(is->pictq_mutex);
1124 if (is->subtitle_st) {
1125 if (is->subtitle_stream_changed) {
1126 SDL_LockMutex(is->subpq_mutex);
1128 while (is->subpq_size) {
1129 free_subpicture(&is->subpq[is->subpq_rindex]);
1131 /* update queue size and signal for next picture */
1132 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1133 is->subpq_rindex = 0;
1137 is->subtitle_stream_changed = 0;
1139 SDL_CondSignal(is->subpq_cond);
1140 SDL_UnlockMutex(is->subpq_mutex);
1142 if (is->subpq_size > 0) {
1143 sp = &is->subpq[is->subpq_rindex];
1145 if (is->subpq_size > 1)
1146 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1150 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1151 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1153 free_subpicture(sp);
1155 /* update queue size and signal for next picture */
1156 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1157 is->subpq_rindex = 0;
1159 SDL_LockMutex(is->subpq_mutex);
1161 SDL_CondSignal(is->subpq_cond);
1162 SDL_UnlockMutex(is->subpq_mutex);
1168 /* display picture */
1169 if (!display_disable)
1172 /* update queue size and signal for next picture */
1173 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1174 is->pictq_rindex = 0;
1176 SDL_LockMutex(is->pictq_mutex);
1178 SDL_CondSignal(is->pictq_cond);
1179 SDL_UnlockMutex(is->pictq_mutex);
1181 } else if (is->audio_st) {
1182 /* draw the next audio frame */
1184 /* if only audio stream, then display the audio bars (better
1185 than nothing, just to test the implementation */
1187 /* display picture */
1188 if (!display_disable)
1192 static int64_t last_time;
1194 int aqsize, vqsize, sqsize;
1197 cur_time = av_gettime();
1198 if (!last_time || (cur_time - last_time) >= 30000) {
1203 aqsize = is->audioq.size;
1205 vqsize = is->videoq.size;
1206 if (is->subtitle_st)
1207 sqsize = is->subtitleq.size;
1209 if (is->audio_st && is->video_st)
1210 av_diff = get_audio_clock(is) - get_video_clock(is);
1211 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1212 get_master_clock(is), av_diff, FFMAX(is->skip_frames - 1, 0), aqsize / 1024,
1213 vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
1215 last_time = cur_time;
1220 static void stream_close(VideoState *is)
1224 /* XXX: use a special url_shutdown call to abort parse cleanly */
1225 is->abort_request = 1;
1226 SDL_WaitThread(is->parse_tid, NULL);
1227 SDL_WaitThread(is->refresh_tid, NULL);
1229 /* free all pictures */
1230 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1234 avfilter_unref_buffer(vp->picref);
1239 SDL_FreeYUVOverlay(vp->bmp);
1243 SDL_DestroyMutex(is->pictq_mutex);
1244 SDL_DestroyCond(is->pictq_cond);
1245 SDL_DestroyMutex(is->subpq_mutex);
1246 SDL_DestroyCond(is->subpq_cond);
1247 #if !CONFIG_AVFILTER
1248 if (is->img_convert_ctx)
1249 sws_freeContext(is->img_convert_ctx);
1254 static void do_exit(void)
1257 stream_close(cur_stream);
1264 avformat_network_deinit();
1268 av_log(NULL, AV_LOG_QUIET, "");
1272 /* allocate a picture (needs to do that in main thread to avoid
1273 potential locking problems */
1274 static void alloc_picture(void *opaque)
1276 VideoState *is = opaque;
1279 vp = &is->pictq[is->pictq_windex];
1282 SDL_FreeYUVOverlay(vp->bmp);
1286 avfilter_unref_buffer(vp->picref);
1289 vp->width = is->out_video_filter->inputs[0]->w;
1290 vp->height = is->out_video_filter->inputs[0]->h;
1291 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1293 vp->width = is->video_st->codec->width;
1294 vp->height = is->video_st->codec->height;
1295 vp->pix_fmt = is->video_st->codec->pix_fmt;
1298 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1301 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1302 /* SDL allocates a buffer smaller than requested if the video
1303 * overlay hardware is unable to support the requested size. */
1304 fprintf(stderr, "Error: the video system does not support an image\n"
1305 "size of %dx%d pixels. Try using -vf \"scale=w:h\"\n"
1306 "to reduce the image size.\n", vp->width, vp->height );
1310 SDL_LockMutex(is->pictq_mutex);
1312 SDL_CondSignal(is->pictq_cond);
1313 SDL_UnlockMutex(is->pictq_mutex);
1318 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1320 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1326 int dst_pix_fmt = PIX_FMT_YUV420P;
1328 /* wait until we have space to put a new picture */
1329 SDL_LockMutex(is->pictq_mutex);
1331 if (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1332 is->skip_frames = FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0 - FRAME_SKIP_FACTOR));
1334 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1335 !is->videoq.abort_request) {
1336 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1338 SDL_UnlockMutex(is->pictq_mutex);
1340 if (is->videoq.abort_request)
1343 vp = &is->pictq[is->pictq_windex];
1345 /* alloc or resize hardware picture buffer */
1346 if (!vp->bmp || vp->reallocate ||
1348 vp->width != is->out_video_filter->inputs[0]->w ||
1349 vp->height != is->out_video_filter->inputs[0]->h) {
1351 vp->width != is->video_st->codec->width ||
1352 vp->height != is->video_st->codec->height) {
1359 /* the allocation must be done in the main thread to avoid
1361 event.type = FF_ALLOC_EVENT;
1362 event.user.data1 = is;
1363 SDL_PushEvent(&event);
1365 /* wait until the picture is allocated */
1366 SDL_LockMutex(is->pictq_mutex);
1367 while (!vp->allocated && !is->videoq.abort_request) {
1368 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1370 SDL_UnlockMutex(is->pictq_mutex);
1372 if (is->videoq.abort_request)
1376 /* if the frame is not skipped, then display it */
1378 AVPicture pict = { { 0 } };
1381 avfilter_unref_buffer(vp->picref);
1382 vp->picref = src_frame->opaque;
1385 /* get a pointer on the bitmap */
1386 SDL_LockYUVOverlay (vp->bmp);
1388 pict.data[0] = vp->bmp->pixels[0];
1389 pict.data[1] = vp->bmp->pixels[2];
1390 pict.data[2] = vp->bmp->pixels[1];
1392 pict.linesize[0] = vp->bmp->pitches[0];
1393 pict.linesize[1] = vp->bmp->pitches[2];
1394 pict.linesize[2] = vp->bmp->pitches[1];
1397 pict_src.data[0] = src_frame->data[0];
1398 pict_src.data[1] = src_frame->data[1];
1399 pict_src.data[2] = src_frame->data[2];
1401 pict_src.linesize[0] = src_frame->linesize[0];
1402 pict_src.linesize[1] = src_frame->linesize[1];
1403 pict_src.linesize[2] = src_frame->linesize[2];
1405 // FIXME use direct rendering
1406 av_picture_copy(&pict, &pict_src,
1407 vp->pix_fmt, vp->width, vp->height);
1409 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1410 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1411 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1412 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1413 if (is->img_convert_ctx == NULL) {
1414 fprintf(stderr, "Cannot initialize the conversion context\n");
1417 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1418 0, vp->height, pict.data, pict.linesize);
1420 /* update the bitmap content */
1421 SDL_UnlockYUVOverlay(vp->bmp);
1426 /* now we can update the picture count */
1427 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1428 is->pictq_windex = 0;
1429 SDL_LockMutex(is->pictq_mutex);
1430 vp->target_clock = compute_target_time(vp->pts, is);
1433 SDL_UnlockMutex(is->pictq_mutex);
1439 * compute the exact PTS for the picture if it is omitted in the stream
1440 * @param pts1 the dts of the pkt / pts of the frame
1442 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1444 double frame_delay, pts;
1449 /* update video clock with pts, if present */
1450 is->video_clock = pts;
1452 pts = is->video_clock;
1454 /* update video clock for next frame */
1455 frame_delay = av_q2d(is->video_st->codec->time_base);
1456 /* for MPEG2, the frame can be repeated, so we update the
1457 clock accordingly */
1458 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1459 is->video_clock += frame_delay;
1461 return queue_picture(is, src_frame, pts, pos);
1464 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1468 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1471 if (pkt->data == flush_pkt.data) {
1472 avcodec_flush_buffers(is->video_st->codec);
1474 SDL_LockMutex(is->pictq_mutex);
1475 // Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1476 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1477 is->pictq[i].target_clock= 0;
1479 while (is->pictq_size && !is->videoq.abort_request) {
1480 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1482 is->video_current_pos = -1;
1483 SDL_UnlockMutex(is->pictq_mutex);
1485 init_pts_correction(&is->pts_ctx);
1486 is->frame_last_pts = AV_NOPTS_VALUE;
1487 is->frame_last_delay = 0;
1488 is->frame_timer = (double)av_gettime() / 1000000.0;
1489 is->skip_frames = 1;
1490 is->skip_frames_index = 0;
1494 avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
1497 if (decoder_reorder_pts == -1) {
1498 *pts = guess_correct_pts(&is->pts_ctx, frame->pkt_pts, frame->pkt_dts);
1499 } else if (decoder_reorder_pts) {
1500 *pts = frame->pkt_pts;
1502 *pts = frame->pkt_dts;
1505 if (*pts == AV_NOPTS_VALUE) {
1509 is->skip_frames_index += 1;
1510 if (is->skip_frames_index >= is->skip_frames) {
1511 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1526 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1528 AVFilterContext *ctx = codec->opaque;
1529 AVFilterBufferRef *ref;
1530 int perms = AV_PERM_WRITE;
1531 int i, w, h, stride[AV_NUM_DATA_POINTERS];
1535 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1536 perms |= AV_PERM_NEG_LINESIZES;
1538 if (pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1539 if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1540 if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1541 if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1543 if (pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1547 avcodec_align_dimensions2(codec, &w, &h, stride);
1548 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1552 if (!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1555 pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1 + 1;
1556 ref->video->w = codec->width;
1557 ref->video->h = codec->height;
1558 for (i = 0; i < 4; i ++) {
1559 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1560 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1563 ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1565 pic->data[i] = ref->data[i];
1566 pic->linesize[i] = ref->linesize[i];
1569 pic->type = FF_BUFFER_TYPE_USER;
1570 pic->reordered_opaque = codec->reordered_opaque;
1571 pic->width = codec->width;
1572 pic->height = codec->height;
1573 pic->format = codec->pix_fmt;
1574 pic->sample_aspect_ratio = codec->sample_aspect_ratio;
1575 if (codec->pkt) pic->pkt_pts = codec->pkt->pts;
1576 else pic->pkt_pts = AV_NOPTS_VALUE;
1580 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1582 memset(pic->data, 0, sizeof(pic->data));
1583 avfilter_unref_buffer(pic->opaque);
1586 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1588 AVFilterBufferRef *ref = pic->opaque;
1590 if (pic->data[0] == NULL) {
1591 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1592 return codec->get_buffer(codec, pic);
1595 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1596 (codec->pix_fmt != ref->format)) {
1597 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1601 pic->reordered_opaque = codec->reordered_opaque;
1602 if (codec->pkt) pic->pkt_pts = codec->pkt->pts;
1603 else pic->pkt_pts = AV_NOPTS_VALUE;
1607 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1609 FilterPriv *priv = ctx->priv;
1610 AVCodecContext *codec;
1611 if (!opaque) return -1;
1614 codec = priv->is->video_st->codec;
1615 codec->opaque = ctx;
1616 if (codec->codec->capabilities & CODEC_CAP_DR1) {
1618 codec->get_buffer = input_get_buffer;
1619 codec->release_buffer = input_release_buffer;
1620 codec->reget_buffer = input_reget_buffer;
1621 codec->thread_safe_callbacks = 1;
1624 priv->frame = avcodec_alloc_frame();
1629 static void input_uninit(AVFilterContext *ctx)
1631 FilterPriv *priv = ctx->priv;
1632 av_free(priv->frame);
1635 static int input_request_frame(AVFilterLink *link)
1637 FilterPriv *priv = link->src->priv;
1638 AVFilterBufferRef *picref;
1643 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1644 av_free_packet(&pkt);
1648 if (priv->use_dr1) {
1649 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1651 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1652 av_image_copy(picref->data, picref->linesize,
1653 priv->frame->data, priv->frame->linesize,
1654 picref->format, link->w, link->h);
1656 av_free_packet(&pkt);
1658 avfilter_copy_frame_props(picref, priv->frame);
1661 avfilter_start_frame(link, picref);
1662 avfilter_draw_slice(link, 0, link->h, 1);
1663 avfilter_end_frame(link);
1668 static int input_query_formats(AVFilterContext *ctx)
1670 FilterPriv *priv = ctx->priv;
1671 enum PixelFormat pix_fmts[] = {
1672 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1675 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1679 static int input_config_props(AVFilterLink *link)
1681 FilterPriv *priv = link->src->priv;
1682 AVCodecContext *c = priv->is->video_st->codec;
1685 link->h = c->height;
1686 link->time_base = priv->is->video_st->time_base;
1691 static AVFilter input_filter =
1693 .name = "avplay_input",
1695 .priv_size = sizeof(FilterPriv),
1698 .uninit = input_uninit,
1700 .query_formats = input_query_formats,
1702 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1703 .outputs = (AVFilterPad[]) {{ .name = "default",
1704 .type = AVMEDIA_TYPE_VIDEO,
1705 .request_frame = input_request_frame,
1706 .config_props = input_config_props, },
1710 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1712 char sws_flags_str[128];
1714 AVFilterContext *filt_src = NULL, *filt_out = NULL, *filt_format;
1715 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1716 graph->scale_sws_opts = av_strdup(sws_flags_str);
1718 if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1719 NULL, is, graph)) < 0)
1721 if ((ret = avfilter_graph_create_filter(&filt_out,
1722 avfilter_get_by_name("buffersink"),
1723 "out", NULL, NULL, graph)) < 0)
1726 if ((ret = avfilter_graph_create_filter(&filt_format,
1727 avfilter_get_by_name("format"),
1728 "format", "yuv420p", NULL, graph)) < 0)
1730 if ((ret = avfilter_link(filt_format, 0, filt_out, 0)) < 0)
1735 AVFilterInOut *outputs = avfilter_inout_alloc();
1736 AVFilterInOut *inputs = avfilter_inout_alloc();
1738 outputs->name = av_strdup("in");
1739 outputs->filter_ctx = filt_src;
1740 outputs->pad_idx = 0;
1741 outputs->next = NULL;
1743 inputs->name = av_strdup("out");
1744 inputs->filter_ctx = filt_format;
1745 inputs->pad_idx = 0;
1746 inputs->next = NULL;
1748 if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1751 if ((ret = avfilter_link(filt_src, 0, filt_format, 0)) < 0)
1755 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1758 is->out_video_filter = filt_out;
1763 #endif /* CONFIG_AVFILTER */
1765 static int video_thread(void *arg)
1767 VideoState *is = arg;
1768 AVFrame *frame = avcodec_alloc_frame();
1774 AVFilterGraph *graph = avfilter_graph_alloc();
1775 AVFilterContext *filt_out = NULL;
1777 int last_w = is->video_st->codec->width;
1778 int last_h = is->video_st->codec->height;
1780 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1782 filt_out = is->out_video_filter;
1786 #if !CONFIG_AVFILTER
1789 AVFilterBufferRef *picref;
1792 while (is->paused && !is->videoq.abort_request)
1795 if ( last_w != is->video_st->codec->width
1796 || last_h != is->video_st->codec->height) {
1797 av_dlog(NULL, "Changing size %dx%d -> %dx%d\n", last_w, last_h,
1798 is->video_st->codec->width, is->video_st->codec->height);
1799 avfilter_graph_free(&graph);
1800 graph = avfilter_graph_alloc();
1801 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1803 filt_out = is->out_video_filter;
1804 last_w = is->video_st->codec->width;
1805 last_h = is->video_st->codec->height;
1807 ret = av_buffersink_read(filt_out, &picref);
1809 avfilter_copy_buf_props(frame, picref);
1811 pts_int = picref->pts;
1812 tb = filt_out->inputs[0]->time_base;
1814 frame->opaque = picref;
1819 if (ret >= 0 && av_cmp_q(tb, is->video_st->time_base)) {
1820 av_unused int64_t pts1 = pts_int;
1821 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1822 av_dlog(NULL, "video_thread(): "
1823 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1824 tb.num, tb.den, pts1,
1825 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1828 ret = get_video_frame(is, frame, &pts_int, &pkt);
1837 pts = pts_int * av_q2d(is->video_st->time_base);
1840 ret = output_picture2(is, frame, pts, pos);
1842 ret = output_picture2(is, frame, pts, pkt.pos);
1843 av_free_packet(&pkt);
1850 stream_pause(cur_stream);
1854 av_freep(&vfilters);
1855 avfilter_graph_free(&graph);
1861 static int subtitle_thread(void *arg)
1863 VideoState *is = arg;
1865 AVPacket pkt1, *pkt = &pkt1;
1869 int r, g, b, y, u, v, a;
1872 while (is->paused && !is->subtitleq.abort_request) {
1875 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1878 if (pkt->data == flush_pkt.data) {
1879 avcodec_flush_buffers(is->subtitle_st->codec);
1882 SDL_LockMutex(is->subpq_mutex);
1883 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1884 !is->subtitleq.abort_request) {
1885 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1887 SDL_UnlockMutex(is->subpq_mutex);
1889 if (is->subtitleq.abort_request)
1892 sp = &is->subpq[is->subpq_windex];
1894 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1895 this packet, if any */
1897 if (pkt->pts != AV_NOPTS_VALUE)
1898 pts = av_q2d(is->subtitle_st->time_base) * pkt->pts;
1900 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1901 &got_subtitle, pkt);
1903 if (got_subtitle && sp->sub.format == 0) {
1906 for (i = 0; i < sp->sub.num_rects; i++)
1908 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1910 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1911 y = RGB_TO_Y_CCIR(r, g, b);
1912 u = RGB_TO_U_CCIR(r, g, b, 0);
1913 v = RGB_TO_V_CCIR(r, g, b, 0);
1914 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1918 /* now we can update the picture count */
1919 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1920 is->subpq_windex = 0;
1921 SDL_LockMutex(is->subpq_mutex);
1923 SDL_UnlockMutex(is->subpq_mutex);
1925 av_free_packet(pkt);
1930 /* copy samples for viewing in editor window */
1931 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1935 size = samples_size / sizeof(short);
1937 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1940 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1942 is->sample_array_index += len;
1943 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1944 is->sample_array_index = 0;
1949 /* return the new audio buffer size (samples can be added or deleted
1950 to get better sync if video or external master clock) */
1951 static int synchronize_audio(VideoState *is, short *samples,
1952 int samples_size1, double pts)
1954 int n, samples_size;
1957 n = is->sdl_channels * av_get_bytes_per_sample(is->sdl_sample_fmt);
1958 samples_size = samples_size1;
1960 /* if not master, then we try to remove or add samples to correct the clock */
1961 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1962 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1963 double diff, avg_diff;
1964 int wanted_size, min_size, max_size, nb_samples;
1966 ref_clock = get_master_clock(is);
1967 diff = get_audio_clock(is) - ref_clock;
1969 if (diff < AV_NOSYNC_THRESHOLD) {
1970 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1971 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1972 /* not enough measures to have a correct estimate */
1973 is->audio_diff_avg_count++;
1975 /* estimate the A-V difference */
1976 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1978 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1979 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1980 nb_samples = samples_size / n;
1982 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1983 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1984 if (wanted_size < min_size)
1985 wanted_size = min_size;
1986 else if (wanted_size > max_size)
1987 wanted_size = max_size;
1989 /* add or remove samples to correction the synchro */
1990 if (wanted_size < samples_size) {
1991 /* remove samples */
1992 samples_size = wanted_size;
1993 } else if (wanted_size > samples_size) {
1994 uint8_t *samples_end, *q;
1998 nb = (samples_size - wanted_size);
1999 samples_end = (uint8_t *)samples + samples_size - n;
2000 q = samples_end + n;
2002 memcpy(q, samples_end, n);
2006 samples_size = wanted_size;
2009 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2010 diff, avg_diff, samples_size - samples_size1,
2011 is->audio_clock, is->video_clock, is->audio_diff_threshold);
2014 /* too big difference : may be initial PTS errors, so
2016 is->audio_diff_avg_count = 0;
2017 is->audio_diff_cum = 0;
2021 return samples_size;
2024 /* decode one audio frame and returns its uncompressed size */
2025 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2027 AVPacket *pkt_temp = &is->audio_pkt_temp;
2028 AVPacket *pkt = &is->audio_pkt;
2029 AVCodecContext *dec = is->audio_st->codec;
2030 int n, len1, data_size, got_frame;
2033 int flush_complete = 0;
2036 /* NOTE: the audio packet can contain several frames */
2037 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
2038 int resample_changed, audio_resample;
2041 if (!(is->frame = avcodec_alloc_frame()))
2042 return AVERROR(ENOMEM);
2044 avcodec_get_frame_defaults(is->frame);
2049 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
2051 /* if error, we skip the frame */
2056 pkt_temp->data += len1;
2057 pkt_temp->size -= len1;
2060 /* stop sending empty packets if the decoder is finished */
2061 if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
2065 data_size = av_samples_get_buffer_size(NULL, dec->channels,
2066 is->frame->nb_samples,
2067 dec->sample_fmt, 1);
2069 audio_resample = dec->sample_fmt != is->sdl_sample_fmt ||
2070 dec->channel_layout != is->sdl_channel_layout;
2072 resample_changed = dec->sample_fmt != is->resample_sample_fmt ||
2073 dec->channel_layout != is->resample_channel_layout;
2075 if ((!is->avr && audio_resample) || resample_changed) {
2078 avresample_close(is->avr);
2079 else if (audio_resample) {
2080 is->avr = avresample_alloc_context();
2082 fprintf(stderr, "error allocating AVAudioResampleContext\n");
2086 if (audio_resample) {
2087 av_opt_set_int(is->avr, "in_channel_layout", dec->channel_layout, 0);
2088 av_opt_set_int(is->avr, "in_sample_fmt", dec->sample_fmt, 0);
2089 av_opt_set_int(is->avr, "in_sample_rate", dec->sample_rate, 0);
2090 av_opt_set_int(is->avr, "out_channel_layout", is->sdl_channel_layout, 0);
2091 av_opt_set_int(is->avr, "out_sample_fmt", is->sdl_sample_fmt, 0);
2092 av_opt_set_int(is->avr, "out_sample_rate", dec->sample_rate, 0);
2093 if (av_get_bytes_per_sample(dec->sample_fmt) <= 2)
2094 av_opt_set_int(is->avr, "internal_sample_fmt", AV_SAMPLE_FMT_S16P, 0);
2096 if ((ret = avresample_open(is->avr)) < 0) {
2097 fprintf(stderr, "error initializing libavresample\n");
2101 is->resample_sample_fmt = dec->sample_fmt;
2102 is->resample_channel_layout = dec->channel_layout;
2105 if (audio_resample) {
2107 int out_samples, out_size, out_linesize;
2108 int osize = av_get_bytes_per_sample(is->sdl_sample_fmt);
2109 int nb_samples = is->frame->nb_samples;
2111 out_size = av_samples_get_buffer_size(&out_linesize,
2114 is->sdl_sample_fmt, 0);
2115 tmp_out = av_realloc(is->audio_buf1, out_size);
2117 return AVERROR(ENOMEM);
2118 is->audio_buf1 = tmp_out;
2120 out_samples = avresample_convert(is->avr,
2121 (void **)&is->audio_buf1,
2122 out_linesize, nb_samples,
2123 (void **)is->frame->data,
2124 is->frame->linesize[0],
2125 is->frame->nb_samples);
2126 if (out_samples < 0) {
2127 fprintf(stderr, "avresample_convert() failed\n");
2130 is->audio_buf = is->audio_buf1;
2131 data_size = out_samples * osize * is->sdl_channels;
2133 is->audio_buf = is->frame->data[0];
2136 /* if no pts, then compute it */
2137 pts = is->audio_clock;
2139 n = is->sdl_channels * av_get_bytes_per_sample(is->sdl_sample_fmt);
2140 is->audio_clock += (double)data_size /
2141 (double)(n * dec->sample_rate);
2144 static double last_clock;
2145 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2146 is->audio_clock - last_clock,
2147 is->audio_clock, pts);
2148 last_clock = is->audio_clock;
2154 /* free the current packet */
2156 av_free_packet(pkt);
2157 memset(pkt_temp, 0, sizeof(*pkt_temp));
2159 if (is->paused || is->audioq.abort_request) {
2163 /* read next packet */
2164 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
2167 if (pkt->data == flush_pkt.data) {
2168 avcodec_flush_buffers(dec);
2174 /* if update the audio clock with the pts */
2175 if (pkt->pts != AV_NOPTS_VALUE) {
2176 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2181 /* prepare a new audio buffer */
2182 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2184 VideoState *is = opaque;
2185 int audio_size, len1;
2188 audio_callback_time = av_gettime();
2191 if (is->audio_buf_index >= is->audio_buf_size) {
2192 audio_size = audio_decode_frame(is, &pts);
2193 if (audio_size < 0) {
2194 /* if error, just output silence */
2195 is->audio_buf = is->silence_buf;
2196 is->audio_buf_size = sizeof(is->silence_buf);
2199 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2200 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2202 is->audio_buf_size = audio_size;
2204 is->audio_buf_index = 0;
2206 len1 = is->audio_buf_size - is->audio_buf_index;
2209 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2212 is->audio_buf_index += len1;
2216 /* open a given stream. Return 0 if OK */
2217 static int stream_component_open(VideoState *is, int stream_index)
2219 AVFormatContext *ic = is->ic;
2220 AVCodecContext *avctx;
2222 SDL_AudioSpec wanted_spec, spec;
2224 AVDictionaryEntry *t = NULL;
2226 if (stream_index < 0 || stream_index >= ic->nb_streams)
2228 avctx = ic->streams[stream_index]->codec;
2230 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index]);
2232 codec = avcodec_find_decoder(avctx->codec_id);
2233 avctx->debug_mv = debug_mv;
2234 avctx->debug = debug;
2235 avctx->workaround_bugs = workaround_bugs;
2236 avctx->idct_algo = idct;
2237 avctx->skip_frame = skip_frame;
2238 avctx->skip_idct = skip_idct;
2239 avctx->skip_loop_filter = skip_loop_filter;
2240 avctx->error_concealment = error_concealment;
2242 if (fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2244 if (!av_dict_get(opts, "threads", NULL, 0))
2245 av_dict_set(&opts, "threads", "auto", 0);
2247 avcodec_open2(avctx, codec, &opts) < 0)
2249 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2250 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2251 return AVERROR_OPTION_NOT_FOUND;
2254 /* prepare audio output */
2255 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2256 wanted_spec.freq = avctx->sample_rate;
2257 wanted_spec.format = AUDIO_S16SYS;
2259 if (!avctx->channel_layout)
2260 avctx->channel_layout = av_get_default_channel_layout(avctx->channels);
2261 if (!avctx->channel_layout) {
2262 fprintf(stderr, "unable to guess channel layout\n");
2265 if (avctx->channels == 1)
2266 is->sdl_channel_layout = AV_CH_LAYOUT_MONO;
2268 is->sdl_channel_layout = AV_CH_LAYOUT_STEREO;
2269 is->sdl_channels = av_get_channel_layout_nb_channels(is->sdl_channel_layout);
2271 wanted_spec.channels = is->sdl_channels;
2272 wanted_spec.silence = 0;
2273 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2274 wanted_spec.callback = sdl_audio_callback;
2275 wanted_spec.userdata = is;
2276 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2277 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2280 is->audio_hw_buf_size = spec.size;
2281 is->sdl_sample_fmt = AV_SAMPLE_FMT_S16;
2282 is->resample_sample_fmt = is->sdl_sample_fmt;
2283 is->resample_channel_layout = is->sdl_channel_layout;
2286 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2287 switch (avctx->codec_type) {
2288 case AVMEDIA_TYPE_AUDIO:
2289 is->audio_stream = stream_index;
2290 is->audio_st = ic->streams[stream_index];
2291 is->audio_buf_size = 0;
2292 is->audio_buf_index = 0;
2294 /* init averaging filter */
2295 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2296 is->audio_diff_avg_count = 0;
2297 /* since we do not have a precise anough audio fifo fullness,
2298 we correct audio sync only if larger than this threshold */
2299 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2301 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2302 packet_queue_init(&is->audioq);
2305 case AVMEDIA_TYPE_VIDEO:
2306 is->video_stream = stream_index;
2307 is->video_st = ic->streams[stream_index];
2309 packet_queue_init(&is->videoq);
2310 is->video_tid = SDL_CreateThread(video_thread, is);
2312 case AVMEDIA_TYPE_SUBTITLE:
2313 is->subtitle_stream = stream_index;
2314 is->subtitle_st = ic->streams[stream_index];
2315 packet_queue_init(&is->subtitleq);
2317 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2325 static void stream_component_close(VideoState *is, int stream_index)
2327 AVFormatContext *ic = is->ic;
2328 AVCodecContext *avctx;
2330 if (stream_index < 0 || stream_index >= ic->nb_streams)
2332 avctx = ic->streams[stream_index]->codec;
2334 switch (avctx->codec_type) {
2335 case AVMEDIA_TYPE_AUDIO:
2336 packet_queue_abort(&is->audioq);
2340 packet_queue_end(&is->audioq);
2341 av_free_packet(&is->audio_pkt);
2343 avresample_free(&is->avr);
2344 av_freep(&is->audio_buf1);
2345 is->audio_buf = NULL;
2346 av_freep(&is->frame);
2349 av_rdft_end(is->rdft);
2350 av_freep(&is->rdft_data);
2355 case AVMEDIA_TYPE_VIDEO:
2356 packet_queue_abort(&is->videoq);
2358 /* note: we also signal this mutex to make sure we deblock the
2359 video thread in all cases */
2360 SDL_LockMutex(is->pictq_mutex);
2361 SDL_CondSignal(is->pictq_cond);
2362 SDL_UnlockMutex(is->pictq_mutex);
2364 SDL_WaitThread(is->video_tid, NULL);
2366 packet_queue_end(&is->videoq);
2368 case AVMEDIA_TYPE_SUBTITLE:
2369 packet_queue_abort(&is->subtitleq);
2371 /* note: we also signal this mutex to make sure we deblock the
2372 video thread in all cases */
2373 SDL_LockMutex(is->subpq_mutex);
2374 is->subtitle_stream_changed = 1;
2376 SDL_CondSignal(is->subpq_cond);
2377 SDL_UnlockMutex(is->subpq_mutex);
2379 SDL_WaitThread(is->subtitle_tid, NULL);
2381 packet_queue_end(&is->subtitleq);
2387 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2388 avcodec_close(avctx);
2389 switch (avctx->codec_type) {
2390 case AVMEDIA_TYPE_AUDIO:
2391 is->audio_st = NULL;
2392 is->audio_stream = -1;
2394 case AVMEDIA_TYPE_VIDEO:
2395 is->video_st = NULL;
2396 is->video_stream = -1;
2398 case AVMEDIA_TYPE_SUBTITLE:
2399 is->subtitle_st = NULL;
2400 is->subtitle_stream = -1;
2407 /* since we have only one decoding thread, we can use a global
2408 variable instead of a thread local variable */
2409 static VideoState *global_video_state;
2411 static int decode_interrupt_cb(void *ctx)
2413 return global_video_state && global_video_state->abort_request;
2416 /* this thread gets the stream from the disk or the network */
2417 static int decode_thread(void *arg)
2419 VideoState *is = arg;
2420 AVFormatContext *ic = NULL;
2422 int st_index[AVMEDIA_TYPE_NB];
2423 AVPacket pkt1, *pkt = &pkt1;
2425 int pkt_in_play_range = 0;
2426 AVDictionaryEntry *t;
2427 AVDictionary **opts;
2428 int orig_nb_streams;
2430 memset(st_index, -1, sizeof(st_index));
2431 is->video_stream = -1;
2432 is->audio_stream = -1;
2433 is->subtitle_stream = -1;
2435 global_video_state = is;
2437 ic = avformat_alloc_context();
2438 ic->interrupt_callback.callback = decode_interrupt_cb;
2439 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2441 print_error(is->filename, err);
2445 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2446 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2447 ret = AVERROR_OPTION_NOT_FOUND;
2453 ic->flags |= AVFMT_FLAG_GENPTS;
2455 opts = setup_find_stream_info_opts(ic, codec_opts);
2456 orig_nb_streams = ic->nb_streams;
2458 err = avformat_find_stream_info(ic, opts);
2460 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2464 for (i = 0; i < orig_nb_streams; i++)
2465 av_dict_free(&opts[i]);
2469 ic->pb->eof_reached = 0; // FIXME hack, avplay maybe should not use url_feof() to test for the end
2471 if (seek_by_bytes < 0)
2472 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2474 /* if seeking requested, we execute it */
2475 if (start_time != AV_NOPTS_VALUE) {
2478 timestamp = start_time;
2479 /* add the stream start time */
2480 if (ic->start_time != AV_NOPTS_VALUE)
2481 timestamp += ic->start_time;
2482 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2484 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2485 is->filename, (double)timestamp / AV_TIME_BASE);
2489 for (i = 0; i < ic->nb_streams; i++)
2490 ic->streams[i]->discard = AVDISCARD_ALL;
2492 st_index[AVMEDIA_TYPE_VIDEO] =
2493 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2494 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2496 st_index[AVMEDIA_TYPE_AUDIO] =
2497 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2498 wanted_stream[AVMEDIA_TYPE_AUDIO],
2499 st_index[AVMEDIA_TYPE_VIDEO],
2502 st_index[AVMEDIA_TYPE_SUBTITLE] =
2503 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2504 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2505 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2506 st_index[AVMEDIA_TYPE_AUDIO] :
2507 st_index[AVMEDIA_TYPE_VIDEO]),
2510 av_dump_format(ic, 0, is->filename, 0);
2513 /* open the streams */
2514 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2515 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2519 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2520 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2522 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2524 if (!display_disable)
2528 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2529 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2532 if (is->video_stream < 0 && is->audio_stream < 0) {
2533 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2539 if (is->abort_request)
2541 if (is->paused != is->last_paused) {
2542 is->last_paused = is->paused;
2544 is->read_pause_return = av_read_pause(ic);
2548 #if CONFIG_RTSP_DEMUXER
2549 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2550 /* wait 10 ms to avoid trying to get another packet */
2557 int64_t seek_target = is->seek_pos;
2558 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2559 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2560 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2561 // of the seek_pos/seek_rel variables
2563 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2565 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2567 if (is->audio_stream >= 0) {
2568 packet_queue_flush(&is->audioq);
2569 packet_queue_put(&is->audioq, &flush_pkt);
2571 if (is->subtitle_stream >= 0) {
2572 packet_queue_flush(&is->subtitleq);
2573 packet_queue_put(&is->subtitleq, &flush_pkt);
2575 if (is->video_stream >= 0) {
2576 packet_queue_flush(&is->videoq);
2577 packet_queue_put(&is->videoq, &flush_pkt);
2584 /* if the queue are full, no need to read more */
2585 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2586 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream < 0)
2587 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0)
2588 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0))) {
2594 if (is->video_stream >= 0) {
2595 av_init_packet(pkt);
2598 pkt->stream_index = is->video_stream;
2599 packet_queue_put(&is->videoq, pkt);
2601 if (is->audio_stream >= 0 &&
2602 is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
2603 av_init_packet(pkt);
2606 pkt->stream_index = is->audio_stream;
2607 packet_queue_put(&is->audioq, pkt);
2610 if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) {
2611 if (loop != 1 && (!loop || --loop)) {
2612 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2613 } else if (autoexit) {
2620 ret = av_read_frame(ic, pkt);
2622 if (ret == AVERROR_EOF || (ic->pb && ic->pb->eof_reached))
2624 if (ic->pb && ic->pb->error)
2626 SDL_Delay(100); /* wait for user event */
2629 /* check if packet is in play range specified by user, then queue, otherwise discard */
2630 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2631 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2632 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2633 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2634 <= ((double)duration / 1000000);
2635 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2636 packet_queue_put(&is->audioq, pkt);
2637 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2638 packet_queue_put(&is->videoq, pkt);
2639 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2640 packet_queue_put(&is->subtitleq, pkt);
2642 av_free_packet(pkt);
2645 /* wait until the end */
2646 while (!is->abort_request) {
2652 /* disable interrupting */
2653 global_video_state = NULL;
2655 /* close each stream */
2656 if (is->audio_stream >= 0)
2657 stream_component_close(is, is->audio_stream);
2658 if (is->video_stream >= 0)
2659 stream_component_close(is, is->video_stream);
2660 if (is->subtitle_stream >= 0)
2661 stream_component_close(is, is->subtitle_stream);
2663 avformat_close_input(&is->ic);
2669 event.type = FF_QUIT_EVENT;
2670 event.user.data1 = is;
2671 SDL_PushEvent(&event);
2676 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2680 is = av_mallocz(sizeof(VideoState));
2683 av_strlcpy(is->filename, filename, sizeof(is->filename));
2684 is->iformat = iformat;
2688 /* start video display */
2689 is->pictq_mutex = SDL_CreateMutex();
2690 is->pictq_cond = SDL_CreateCond();
2692 is->subpq_mutex = SDL_CreateMutex();
2693 is->subpq_cond = SDL_CreateCond();
2695 is->av_sync_type = av_sync_type;
2696 is->parse_tid = SDL_CreateThread(decode_thread, is);
2697 if (!is->parse_tid) {
2704 static void stream_cycle_channel(VideoState *is, int codec_type)
2706 AVFormatContext *ic = is->ic;
2707 int start_index, stream_index;
2710 if (codec_type == AVMEDIA_TYPE_VIDEO)
2711 start_index = is->video_stream;
2712 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2713 start_index = is->audio_stream;
2715 start_index = is->subtitle_stream;
2716 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2718 stream_index = start_index;
2720 if (++stream_index >= is->ic->nb_streams)
2722 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2729 if (stream_index == start_index)
2731 st = ic->streams[stream_index];
2732 if (st->codec->codec_type == codec_type) {
2733 /* check that parameters are OK */
2734 switch (codec_type) {
2735 case AVMEDIA_TYPE_AUDIO:
2736 if (st->codec->sample_rate != 0 &&
2737 st->codec->channels != 0)
2740 case AVMEDIA_TYPE_VIDEO:
2741 case AVMEDIA_TYPE_SUBTITLE:
2749 stream_component_close(is, start_index);
2750 stream_component_open(is, stream_index);
2754 static void toggle_full_screen(void)
2756 is_full_screen = !is_full_screen;
2757 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2758 /* OS X needs to empty the picture_queue */
2759 for (int i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
2760 cur_stream->pictq[i].reallocate = 1;
2763 video_open(cur_stream);
2766 static void toggle_pause(void)
2769 stream_pause(cur_stream);
2773 static void step_to_next_frame(void)
2776 /* if the stream is paused unpause it, then step */
2777 if (cur_stream->paused)
2778 stream_pause(cur_stream);
2783 static void toggle_audio_display(void)
2786 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2787 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2788 fill_rectangle(screen,
2789 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2791 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2795 /* handle an event sent by the GUI */
2796 static void event_loop(void)
2799 double incr, pos, frac;
2803 SDL_WaitEvent(&event);
2804 switch (event.type) {
2806 if (exit_on_keydown) {
2810 switch (event.key.keysym.sym) {
2816 toggle_full_screen();
2822 case SDLK_s: // S: Step to next frame
2823 step_to_next_frame();
2827 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2831 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2835 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2838 toggle_audio_display();
2853 if (seek_by_bytes) {
2854 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) {
2855 pos = cur_stream->video_current_pos;
2856 } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) {
2857 pos = cur_stream->audio_pkt.pos;
2859 pos = avio_tell(cur_stream->ic->pb);
2860 if (cur_stream->ic->bit_rate)
2861 incr *= cur_stream->ic->bit_rate / 8.0;
2865 stream_seek(cur_stream, pos, incr, 1);
2867 pos = get_master_clock(cur_stream);
2869 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2877 case SDL_MOUSEBUTTONDOWN:
2878 if (exit_on_mousedown) {
2882 case SDL_MOUSEMOTION:
2883 if (event.type == SDL_MOUSEBUTTONDOWN) {
2886 if (event.motion.state != SDL_PRESSED)
2891 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
2892 uint64_t size = avio_size(cur_stream->ic->pb);
2893 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2897 int tns, thh, tmm, tss;
2898 tns = cur_stream->ic->duration / 1000000LL;
2900 tmm = (tns % 3600) / 60;
2902 frac = x / cur_stream->width;
2905 mm = (ns % 3600) / 60;
2907 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2908 hh, mm, ss, thh, tmm, tss);
2909 ts = frac * cur_stream->ic->duration;
2910 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2911 ts += cur_stream->ic->start_time;
2912 stream_seek(cur_stream, ts, 0, 0);
2916 case SDL_VIDEORESIZE:
2918 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2919 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2920 screen_width = cur_stream->width = event.resize.w;
2921 screen_height = cur_stream->height = event.resize.h;
2928 case FF_ALLOC_EVENT:
2929 video_open(event.user.data1);
2930 alloc_picture(event.user.data1);
2932 case FF_REFRESH_EVENT:
2933 video_refresh_timer(event.user.data1);
2934 cur_stream->refresh = 0;
2942 static int opt_frame_size(const char *opt, const char *arg)
2944 av_log(NULL, AV_LOG_ERROR,
2945 "Option '%s' has been removed, use private format options instead\n", opt);
2946 return AVERROR(EINVAL);
2949 static int opt_width(const char *opt, const char *arg)
2951 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2955 static int opt_height(const char *opt, const char *arg)
2957 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2961 static int opt_format(const char *opt, const char *arg)
2963 file_iformat = av_find_input_format(arg);
2964 if (!file_iformat) {
2965 fprintf(stderr, "Unknown input format: %s\n", arg);
2966 return AVERROR(EINVAL);
2971 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2973 av_log(NULL, AV_LOG_ERROR,
2974 "Option '%s' has been removed, use private format options instead\n", opt);
2975 return AVERROR(EINVAL);
2978 static int opt_sync(const char *opt, const char *arg)
2980 if (!strcmp(arg, "audio"))
2981 av_sync_type = AV_SYNC_AUDIO_MASTER;
2982 else if (!strcmp(arg, "video"))
2983 av_sync_type = AV_SYNC_VIDEO_MASTER;
2984 else if (!strcmp(arg, "ext"))
2985 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2987 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2993 static int opt_seek(const char *opt, const char *arg)
2995 start_time = parse_time_or_die(opt, arg, 1);
2999 static int opt_duration(const char *opt, const char *arg)
3001 duration = parse_time_or_die(opt, arg, 1);
3005 static int opt_debug(const char *opt, const char *arg)
3007 av_log_set_level(99);
3008 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3012 static int opt_vismv(const char *opt, const char *arg)
3014 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
3018 static const OptionDef options[] = {
3019 #include "cmdutils_common_opts.h"
3020 { "x", HAS_ARG, { (void*)opt_width }, "force displayed width", "width" },
3021 { "y", HAS_ARG, { (void*)opt_height }, "force displayed height", "height" },
3022 { "s", HAS_ARG | OPT_VIDEO, { (void*)opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
3023 { "fs", OPT_BOOL, { (void*)&is_full_screen }, "force full screen" },
3024 { "an", OPT_BOOL, { (void*)&audio_disable }, "disable audio" },
3025 { "vn", OPT_BOOL, { (void*)&video_disable }, "disable video" },
3026 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
3027 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
3028 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
3029 { "ss", HAS_ARG, { (void*)&opt_seek }, "seek to a given position in seconds", "pos" },
3030 { "t", HAS_ARG, { (void*)&opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
3031 { "bytes", OPT_INT | HAS_ARG, { (void*)&seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
3032 { "nodisp", OPT_BOOL, { (void*)&display_disable }, "disable graphical display" },
3033 { "f", HAS_ARG, { (void*)opt_format }, "force format", "fmt" },
3034 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { (void*)opt_frame_pix_fmt }, "set pixel format", "format" },
3035 { "stats", OPT_BOOL | OPT_EXPERT, { (void*)&show_status }, "show status", "" },
3036 { "debug", HAS_ARG | OPT_EXPERT, { (void*)opt_debug }, "print specific debug info", "" },
3037 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&workaround_bugs }, "workaround bugs", "" },
3038 { "vismv", HAS_ARG | OPT_EXPERT, { (void*)opt_vismv }, "visualize motion vectors", "" },
3039 { "fast", OPT_BOOL | OPT_EXPERT, { (void*)&fast }, "non spec compliant optimizations", "" },
3040 { "genpts", OPT_BOOL | OPT_EXPERT, { (void*)&genpts }, "generate pts", "" },
3041 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3042 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_loop_filter }, "", "" },
3043 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_frame }, "", "" },
3044 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_idct }, "", "" },
3045 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&idct }, "set idct algo", "algo" },
3046 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&error_concealment }, "set error concealment options", "bit_mask" },
3047 { "sync", HAS_ARG | OPT_EXPERT, { (void*)opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
3048 { "autoexit", OPT_BOOL | OPT_EXPERT, { (void*)&autoexit }, "exit at the end", "" },
3049 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_keydown }, "exit on key down", "" },
3050 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_mousedown }, "exit on mouse down", "" },
3051 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&loop }, "set number of times the playback shall be looped", "loop count" },
3052 { "framedrop", OPT_BOOL | OPT_EXPERT, { (void*)&framedrop }, "drop frames when cpu is too slow", "" },
3053 { "window_title", OPT_STRING | HAS_ARG, { (void*)&window_title }, "set window title", "window title" },
3055 { "vf", OPT_STRING | HAS_ARG, { (void*)&vfilters }, "video filters", "filter list" },
3057 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { (void*)&rdftspeed }, "rdft speed", "msecs" },
3058 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { (void*)opt_default }, "generic catch all option", "" },
3059 { "i", 0, { NULL }, "avconv compatibility dummy option", ""},
3063 static void show_usage(void)
3065 printf("Simple media player\n");
3066 printf("usage: %s [options] input_file\n", program_name);
3070 static void show_help(void)
3072 av_log_set_callback(log_callback_help);
3074 show_help_options(options, "Main options:\n",
3076 show_help_options(options, "\nAdvanced options:\n",
3077 OPT_EXPERT, OPT_EXPERT);
3079 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3080 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3081 #if !CONFIG_AVFILTER
3082 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3084 printf("\nWhile playing:\n"
3086 "f toggle full screen\n"
3088 "a cycle audio channel\n"
3089 "v cycle video channel\n"
3090 "t cycle subtitle channel\n"
3091 "w show audio waves\n"
3092 "s activate frame-step mode\n"
3093 "left/right seek backward/forward 10 seconds\n"
3094 "down/up seek backward/forward 1 minute\n"
3095 "mouse click seek to percentage in file corresponding to fraction of width\n"
3099 static void opt_input_file(void *optctx, const char *filename)
3101 if (input_filename) {
3102 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3103 filename, input_filename);
3106 if (!strcmp(filename, "-"))
3108 input_filename = filename;
3111 /* Called from the main */
3112 int main(int argc, char **argv)
3116 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3117 parse_loglevel(argc, argv, options);
3119 /* register all codecs, demux and protocols */
3120 avcodec_register_all();
3122 avdevice_register_all();
3125 avfilter_register_all();
3128 avformat_network_init();
3134 parse_options(NULL, argc, argv, options, opt_input_file);
3136 if (!input_filename) {
3138 fprintf(stderr, "An input file must be specified\n");
3139 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3143 if (display_disable) {
3146 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3147 #if !defined(__MINGW32__) && !defined(__APPLE__)
3148 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3150 if (SDL_Init (flags)) {
3151 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3155 if (!display_disable) {
3156 #if HAVE_SDL_VIDEO_SIZE
3157 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3158 fs_screen_width = vi->current_w;
3159 fs_screen_height = vi->current_h;
3163 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3164 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3165 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3167 av_init_packet(&flush_pkt);
3168 flush_pkt.data = "FLUSH";
3170 cur_stream = stream_open(input_filename, file_iformat);