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
28 #include "libavutil/avstring.h"
29 #include "libavutil/colorspace.h"
30 #include "libavutil/display.h"
31 #include "libavutil/mathematics.h"
32 #include "libavutil/pixdesc.h"
33 #include "libavutil/imgutils.h"
34 #include "libavutil/dict.h"
35 #include "libavutil/parseutils.h"
36 #include "libavutil/samplefmt.h"
37 #include "libavutil/time.h"
38 #include "libavformat/avformat.h"
39 #include "libavdevice/avdevice.h"
40 #include "libavresample/avresample.h"
41 #include "libavutil/opt.h"
42 #include "libavcodec/avfft.h"
44 #include "libavfilter/avfilter.h"
45 #include "libavfilter/buffersink.h"
46 #include "libavfilter/buffersrc.h"
51 #include <SDL_thread.h>
54 #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 int64_t 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 timestamp for this picture
102 double target_clock; // av_gettime_relative() 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 AVPixelFormat pix_fmt;
113 typedef struct SubPicture {
114 double pts; /* presentation time stamp for this picture */
119 AV_SYNC_AUDIO_MASTER, /* default choice */
120 AV_SYNC_VIDEO_MASTER,
121 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
124 typedef struct PlayerState {
125 SDL_Thread *parse_tid;
126 SDL_Thread *video_tid;
127 SDL_Thread *refresh_tid;
128 AVInputFormat *iformat;
137 int read_pause_return;
143 double external_clock; /* external clock base */
144 int64_t external_clock_time;
147 double audio_diff_cum; /* used for AV difference average computation */
148 double audio_diff_avg_coef;
149 double audio_diff_threshold;
150 int audio_diff_avg_count;
152 AVCodecContext *audio_dec;
154 int audio_hw_buf_size;
155 uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
158 unsigned int audio_buf_size; /* in bytes */
159 int audio_buf_index; /* in bytes */
160 AVPacket audio_pkt_temp;
162 enum AVSampleFormat sdl_sample_fmt;
163 uint64_t sdl_channel_layout;
166 enum AVSampleFormat resample_sample_fmt;
167 uint64_t resample_channel_layout;
168 int resample_sample_rate;
169 AVAudioResampleContext *avr;
172 int show_audio; /* if true, display audio samples */
173 int16_t sample_array[SAMPLE_ARRAY_SIZE];
174 int sample_array_index;
178 FFTSample *rdft_data;
181 SDL_Thread *subtitle_tid;
183 int subtitle_stream_changed;
184 AVStream *subtitle_st;
185 AVCodecContext *subtitle_dec;
186 PacketQueue subtitleq;
187 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
188 int subpq_size, subpq_rindex, subpq_windex;
189 SDL_mutex *subpq_mutex;
190 SDL_cond *subpq_cond;
193 double frame_last_pts;
194 double frame_last_delay;
195 double video_clock; // pts of last decoded frame / predicted pts of next decoded frame
198 AVCodecContext *video_dec;
200 double video_current_pts; // current displayed pts (different from video_clock if frame fifos are used)
201 double video_current_pts_drift; // video_current_pts - time (av_gettime_relative) at which we updated video_current_pts - used to have running video pts
202 int64_t video_current_pos; // current displayed file pos
203 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
204 int pictq_size, pictq_rindex, pictq_windex;
205 SDL_mutex *pictq_mutex;
206 SDL_cond *pictq_cond;
208 // QETimer *video_timer;
210 int width, height, xleft, ytop;
212 PtsCorrectionContext pts_ctx;
214 AVFilterContext *in_video_filter; // the first filter in the video chain
215 AVFilterContext *out_video_filter; // the last filter in the video chain
218 float skip_frames_index;
221 SpecifierOpt *codec_names;
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;
247 static int workaround_bugs = 1;
249 static int genpts = 0;
250 static int idct = FF_IDCT_AUTO;
251 static enum AVDiscard skip_frame = AVDISCARD_DEFAULT;
252 static enum AVDiscard skip_idct = AVDISCARD_DEFAULT;
253 static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT;
254 static int error_concealment = 3;
255 static int decoder_reorder_pts = -1;
256 static int noautoexit;
257 static int exit_on_keydown;
258 static int exit_on_mousedown;
260 static int framedrop = 1;
261 static int infinite_buffer = 0;
263 static int rdftspeed = 20;
264 static char *vfilters = NULL;
265 static int autorotate = 1;
267 /* current context */
268 static int is_full_screen;
269 static PlayerState player_state;
270 static PlayerState *player = &player_state;
271 static int64_t audio_callback_time;
273 static AVPacket flush_pkt;
275 #define FF_ALLOC_EVENT (SDL_USEREVENT)
276 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
277 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
279 static SDL_Surface *screen;
281 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
283 /* packet queue handling */
284 static void packet_queue_init(PacketQueue *q)
286 memset(q, 0, sizeof(PacketQueue));
287 q->mutex = SDL_CreateMutex();
288 q->cond = SDL_CreateCond();
289 packet_queue_put(q, &flush_pkt);
292 static void packet_queue_flush(PacketQueue *q)
294 AVPacketList *pkt, *pkt1;
296 SDL_LockMutex(q->mutex);
297 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
299 av_packet_unref(&pkt->pkt);
306 SDL_UnlockMutex(q->mutex);
309 static void packet_queue_end(PacketQueue *q)
311 packet_queue_flush(q);
312 SDL_DestroyMutex(q->mutex);
313 SDL_DestroyCond(q->cond);
316 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
320 pkt1 = av_malloc(sizeof(AVPacketList));
327 SDL_LockMutex(q->mutex);
333 q->last_pkt->next = pkt1;
336 q->size += pkt1->pkt.size + sizeof(*pkt1);
337 /* XXX: should duplicate packet data in DV case */
338 SDL_CondSignal(q->cond);
340 SDL_UnlockMutex(q->mutex);
344 static void packet_queue_abort(PacketQueue *q)
346 SDL_LockMutex(q->mutex);
348 q->abort_request = 1;
350 SDL_CondSignal(q->cond);
352 SDL_UnlockMutex(q->mutex);
355 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
356 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
361 SDL_LockMutex(q->mutex);
364 if (q->abort_request) {
371 q->first_pkt = pkt1->next;
375 q->size -= pkt1->pkt.size + sizeof(*pkt1);
384 SDL_CondWait(q->cond, q->mutex);
387 SDL_UnlockMutex(q->mutex);
391 static inline void fill_rectangle(SDL_Surface *screen,
392 int x, int y, int w, int h, int color)
399 SDL_FillRect(screen, &rect, color);
402 #define ALPHA_BLEND(a, oldp, newp, s)\
403 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
405 #define RGBA_IN(r, g, b, a, s)\
407 unsigned int v = ((const uint32_t *)(s))[0];\
408 a = (v >> 24) & 0xff;\
409 r = (v >> 16) & 0xff;\
410 g = (v >> 8) & 0xff;\
414 #define YUVA_IN(y, u, v, a, s, pal)\
416 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
417 a = (val >> 24) & 0xff;\
418 y = (val >> 16) & 0xff;\
419 u = (val >> 8) & 0xff;\
423 #define YUVA_OUT(d, y, u, v, a)\
425 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
431 static void blend_subrect(uint8_t *dst[4], uint16_t dst_linesize[4],
432 const AVSubtitleRect *rect, int imgw, int imgh)
434 int wrap, wrap3, width2, skip2;
435 int y, u, v, a, u1, v1, a1, w, h;
436 uint8_t *lum, *cb, *cr;
439 int dstx, dsty, dstw, dsth;
441 dstw = av_clip(rect->w, 0, imgw);
442 dsth = av_clip(rect->h, 0, imgh);
443 dstx = av_clip(rect->x, 0, imgw - dstw);
444 dsty = av_clip(rect->y, 0, imgh - dsth);
445 /* sdl has U and V inverted */
446 lum = dst[0] + dsty * dst_linesize[0];
447 cb = dst[2] + (dsty >> 1) * dst_linesize[2];
448 cr = dst[1] + (dsty >> 1) * dst_linesize[1];
450 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
452 wrap = dst_linesize[0];
453 wrap3 = rect->linesize[0];
455 pal = (const uint32_t *)rect->data[1]; /* Now in YCrCb! */
463 YUVA_IN(y, u, v, a, p, pal);
464 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
465 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
466 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
472 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
473 YUVA_IN(y, u, v, a, p, pal);
477 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
479 YUVA_IN(y, u, v, a, p + BPP, pal);
483 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
484 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
485 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
492 YUVA_IN(y, u, v, a, p, pal);
493 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
494 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
495 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
499 p += wrap3 - dstw * BPP;
500 lum += wrap - dstw - dstx;
501 cb += dst_linesize[2] - width2 - skip2;
502 cr += dst_linesize[1] - width2 - skip2;
504 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
510 YUVA_IN(y, u, v, a, p, pal);
514 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
517 YUVA_IN(y, u, v, a, p, pal);
521 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
522 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
523 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
529 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
530 YUVA_IN(y, u, v, a, p, pal);
534 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
536 YUVA_IN(y, u, v, a, p + BPP, pal);
540 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
544 YUVA_IN(y, u, v, a, p, pal);
548 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
550 YUVA_IN(y, u, v, a, p + BPP, pal);
554 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
556 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
557 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
561 p += -wrap3 + 2 * BPP;
565 YUVA_IN(y, u, v, a, p, pal);
569 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
572 YUVA_IN(y, u, v, a, p, pal);
576 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
577 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
578 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
584 p += wrap3 + (wrap3 - dstw * BPP);
585 lum += wrap + (wrap - dstw - dstx);
586 cb += dst_linesize[2] - width2 - skip2;
587 cr += dst_linesize[1] - width2 - skip2;
589 /* handle odd height */
596 YUVA_IN(y, u, v, a, p, pal);
597 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
598 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
599 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
605 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
606 YUVA_IN(y, u, v, a, p, pal);
610 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
612 YUVA_IN(y, u, v, a, p + BPP, pal);
616 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
617 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
618 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
625 YUVA_IN(y, u, v, a, p, pal);
626 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
627 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
628 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
633 static void free_subpicture(SubPicture *sp)
635 avsubtitle_free(&sp->sub);
638 static void video_image_display(PlayerState *is)
643 int width, height, x, y;
647 vp = &is->pictq[is->pictq_rindex];
652 aspect_ratio = av_q2d(vp->sar);
653 if (aspect_ratio <= 0.0)
655 aspect_ratio *= (float)vp->width / (float)vp->height;
659 if (is->subpq_size > 0)
661 sp = &is->subpq[is->subpq_rindex];
663 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
665 SDL_LockYUVOverlay (vp->bmp);
667 for (i = 0; i < sp->sub.num_rects; i++)
668 blend_subrect(vp->bmp->pixels, vp->bmp->pitches,
669 sp->sub.rects[i], vp->bmp->w, vp->bmp->h);
671 SDL_UnlockYUVOverlay (vp->bmp);
677 /* XXX: we suppose the screen has a 1.0 pixel ratio */
679 width = ((int)rint(height * aspect_ratio)) & ~1;
680 if (width > is->width) {
682 height = ((int)rint(width / aspect_ratio)) & ~1;
684 x = (is->width - width) / 2;
685 y = (is->height - height) / 2;
686 is->no_background = 0;
687 rect.x = is->xleft + x;
688 rect.y = is->ytop + y;
691 SDL_DisplayYUVOverlay(vp->bmp, &rect);
695 /* get the current audio output buffer size, in samples. With SDL, we
696 cannot have a precise information */
697 static int audio_write_get_buf_size(PlayerState *is)
699 return is->audio_buf_size - is->audio_buf_index;
702 static inline int compute_mod(int a, int b)
711 static void video_audio_display(PlayerState *s)
713 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
714 int ch, channels, h, h2, bgcolor, fgcolor;
716 int rdft_bits, nb_freq;
718 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
720 nb_freq = 1 << (rdft_bits - 1);
722 /* compute display index : center on currently output samples */
723 channels = s->sdl_channels;
724 nb_display_channels = channels;
726 int data_used = s->show_audio == 1 ? s->width : (2 * nb_freq);
728 delay = audio_write_get_buf_size(s);
731 /* to be more precise, we take into account the time spent since
732 the last buffer computation */
733 if (audio_callback_time) {
734 time_diff = av_gettime_relative() - audio_callback_time;
735 delay -= (time_diff * s->sdl_sample_rate) / 1000000;
738 delay += 2 * data_used;
739 if (delay < data_used)
742 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
743 if (s->show_audio == 1) {
745 for (i = 0; i < 1000; i += channels) {
746 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
747 int a = s->sample_array[idx];
748 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
749 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
750 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
752 if (h < score && (b ^ c) < 0) {
759 s->last_i_start = i_start;
761 i_start = s->last_i_start;
764 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
765 if (s->show_audio == 1) {
766 fill_rectangle(screen,
767 s->xleft, s->ytop, s->width, s->height,
770 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
772 /* total height for one channel */
773 h = s->height / nb_display_channels;
774 /* graph height / 2 */
776 for (ch = 0; ch < nb_display_channels; ch++) {
778 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
779 for (x = 0; x < s->width; x++) {
780 y = (s->sample_array[i] * h2) >> 15;
787 fill_rectangle(screen,
788 s->xleft + x, ys, 1, y,
791 if (i >= SAMPLE_ARRAY_SIZE)
792 i -= SAMPLE_ARRAY_SIZE;
796 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
798 for (ch = 1; ch < nb_display_channels; ch++) {
799 y = s->ytop + ch * h;
800 fill_rectangle(screen,
801 s->xleft, y, s->width, 1,
804 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
806 nb_display_channels= FFMIN(nb_display_channels, 2);
807 if (rdft_bits != s->rdft_bits) {
808 av_rdft_end(s->rdft);
809 av_free(s->rdft_data);
810 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
811 s->rdft_bits = rdft_bits;
812 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
816 for (ch = 0; ch < nb_display_channels; ch++) {
817 data[ch] = s->rdft_data + 2 * nb_freq * ch;
819 for (x = 0; x < 2 * nb_freq; x++) {
820 double w = (x-nb_freq) * (1.0 / nb_freq);
821 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
823 if (i >= SAMPLE_ARRAY_SIZE)
824 i -= SAMPLE_ARRAY_SIZE;
826 av_rdft_calc(s->rdft, data[ch]);
828 /* Least efficient way to do this, we should of course
829 * directly access it but it is more than fast enough. */
830 for (y = 0; y < s->height; y++) {
831 double w = 1 / sqrt(nb_freq);
832 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]));
833 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
834 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
837 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
839 fill_rectangle(screen,
840 s->xpos, s->height-y, 1, 1,
844 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
846 if (s->xpos >= s->width)
851 static int video_open(PlayerState *is)
853 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
856 if (is_full_screen) flags |= SDL_FULLSCREEN;
857 else flags |= SDL_RESIZABLE;
859 if (is_full_screen && fs_screen_width) {
861 h = fs_screen_height;
862 } else if (!is_full_screen && screen_width) {
865 } else if (is->out_video_filter && is->out_video_filter->inputs[0]) {
866 w = is->out_video_filter->inputs[0]->w;
867 h = is->out_video_filter->inputs[0]->h;
872 if (screen && is->width == screen->w && screen->w == w
873 && is->height== screen->h && screen->h == h)
876 #if defined(__APPLE__) && !SDL_VERSION_ATLEAST(1, 2, 14)
877 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X and older SDL */
878 screen = SDL_SetVideoMode(w, h, 24, flags);
880 screen = SDL_SetVideoMode(w, h, 0, flags);
883 fprintf(stderr, "SDL: could not set video mode - exiting\n");
887 window_title = input_filename;
888 SDL_WM_SetCaption(window_title, window_title);
890 is->width = screen->w;
891 is->height = screen->h;
896 /* display the current picture, if any */
897 static void video_display(PlayerState *is)
901 if (is->audio_st && is->show_audio)
902 video_audio_display(is);
903 else if (is->video_st)
904 video_image_display(is);
907 static int refresh_thread(void *opaque)
909 PlayerState *is= opaque;
910 while (!is->abort_request) {
912 event.type = FF_REFRESH_EVENT;
913 event.user.data1 = opaque;
916 SDL_PushEvent(&event);
918 av_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
923 /* get the current audio clock value */
924 static double get_audio_clock(PlayerState *is)
927 int hw_buf_size, bytes_per_sec;
928 pts = is->audio_clock;
929 hw_buf_size = audio_write_get_buf_size(is);
932 bytes_per_sec = is->sdl_sample_rate * is->sdl_channels *
933 av_get_bytes_per_sample(is->sdl_sample_fmt);
936 pts -= (double)hw_buf_size / bytes_per_sec;
940 /* get the current video clock value */
941 static double get_video_clock(PlayerState *is)
944 return is->video_current_pts;
946 return is->video_current_pts_drift + av_gettime_relative() / 1000000.0;
950 /* get the current external clock value */
951 static double get_external_clock(PlayerState *is)
954 ti = av_gettime_relative();
955 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
958 /* get the current master clock value */
959 static double get_master_clock(PlayerState *is)
963 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
965 val = get_video_clock(is);
967 val = get_audio_clock(is);
968 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
970 val = get_audio_clock(is);
972 val = get_video_clock(is);
974 val = get_external_clock(is);
979 /* seek in the stream */
980 static void stream_seek(PlayerState *is, int64_t pos, int64_t rel, int seek_by_bytes)
985 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
987 is->seek_flags |= AVSEEK_FLAG_BYTE;
992 /* pause or resume the video */
993 static void stream_pause(PlayerState *is)
996 is->frame_timer += av_gettime_relative() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
997 if (is->read_pause_return != AVERROR(ENOSYS)) {
998 is->video_current_pts = is->video_current_pts_drift + av_gettime_relative() / 1000000.0;
1000 is->video_current_pts_drift = is->video_current_pts - av_gettime_relative() / 1000000.0;
1002 is->paused = !is->paused;
1005 static double compute_target_time(double frame_current_pts, PlayerState *is)
1007 double delay, sync_threshold, diff = 0;
1009 /* compute nominal delay */
1010 delay = frame_current_pts - is->frame_last_pts;
1011 if (delay <= 0 || delay >= 10.0) {
1012 /* if incorrect delay, use previous one */
1013 delay = is->frame_last_delay;
1015 is->frame_last_delay = delay;
1017 is->frame_last_pts = frame_current_pts;
1019 /* update delay to follow master synchronisation source */
1020 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1021 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1022 /* if video is slave, we try to correct big delays by
1023 duplicating or deleting a frame */
1024 diff = get_video_clock(is) - get_master_clock(is);
1026 /* skip or repeat frame. We take into account the
1027 delay to compute the threshold. I still don't know
1028 if it is the best guess */
1029 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1030 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1031 if (diff <= -sync_threshold)
1033 else if (diff >= sync_threshold)
1037 is->frame_timer += delay;
1039 av_log(NULL, AV_LOG_TRACE, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
1040 delay, frame_current_pts, -diff);
1042 return is->frame_timer;
1045 /* called to display each frame */
1046 static void video_refresh_timer(void *opaque)
1048 PlayerState *is = opaque;
1051 SubPicture *sp, *sp2;
1055 if (is->pictq_size == 0) {
1056 // nothing to do, no picture to display in the que
1058 double time = av_gettime_relative() / 1000000.0;
1060 /* dequeue the picture */
1061 vp = &is->pictq[is->pictq_rindex];
1063 if (time < vp->target_clock)
1065 /* update current video pts */
1066 is->video_current_pts = vp->pts;
1067 is->video_current_pts_drift = is->video_current_pts - time;
1068 is->video_current_pos = vp->pos;
1069 if (is->pictq_size > 1) {
1070 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1071 assert(nextvp->target_clock >= vp->target_clock);
1072 next_target= nextvp->target_clock;
1074 next_target = vp->target_clock + is->video_clock - vp->pts; // FIXME pass durations cleanly
1076 if (framedrop && time > next_target) {
1077 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1078 if (is->pictq_size > 1 || time > next_target + 0.5) {
1079 /* update queue size and signal for next picture */
1080 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1081 is->pictq_rindex = 0;
1083 SDL_LockMutex(is->pictq_mutex);
1085 SDL_CondSignal(is->pictq_cond);
1086 SDL_UnlockMutex(is->pictq_mutex);
1091 if (is->subtitle_st) {
1092 if (is->subtitle_stream_changed) {
1093 SDL_LockMutex(is->subpq_mutex);
1095 while (is->subpq_size) {
1096 free_subpicture(&is->subpq[is->subpq_rindex]);
1098 /* update queue size and signal for next picture */
1099 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1100 is->subpq_rindex = 0;
1104 is->subtitle_stream_changed = 0;
1106 SDL_CondSignal(is->subpq_cond);
1107 SDL_UnlockMutex(is->subpq_mutex);
1109 if (is->subpq_size > 0) {
1110 sp = &is->subpq[is->subpq_rindex];
1112 if (is->subpq_size > 1)
1113 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1117 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1118 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1120 free_subpicture(sp);
1122 /* update queue size and signal for next picture */
1123 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1124 is->subpq_rindex = 0;
1126 SDL_LockMutex(is->subpq_mutex);
1128 SDL_CondSignal(is->subpq_cond);
1129 SDL_UnlockMutex(is->subpq_mutex);
1135 /* display picture */
1136 if (!display_disable)
1139 /* update queue size and signal for next picture */
1140 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1141 is->pictq_rindex = 0;
1143 SDL_LockMutex(is->pictq_mutex);
1145 SDL_CondSignal(is->pictq_cond);
1146 SDL_UnlockMutex(is->pictq_mutex);
1148 } else if (is->audio_st) {
1149 /* draw the next audio frame */
1151 /* if only audio stream, then display the audio bars (better
1152 than nothing, just to test the implementation */
1154 /* display picture */
1155 if (!display_disable)
1159 static int64_t last_time;
1161 int aqsize, vqsize, sqsize;
1164 cur_time = av_gettime_relative();
1165 if (!last_time || (cur_time - last_time) >= 30000) {
1170 aqsize = is->audioq.size;
1172 vqsize = is->videoq.size;
1173 if (is->subtitle_st)
1174 sqsize = is->subtitleq.size;
1176 if (is->audio_st && is->video_st)
1177 av_diff = get_audio_clock(is) - get_video_clock(is);
1178 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1179 get_master_clock(is), av_diff, FFMAX(is->skip_frames - 1, 0), aqsize / 1024,
1180 vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
1182 last_time = cur_time;
1187 static void player_close(PlayerState *is)
1191 /* XXX: use a special url_shutdown call to abort parse cleanly */
1192 is->abort_request = 1;
1193 SDL_WaitThread(is->parse_tid, NULL);
1194 SDL_WaitThread(is->refresh_tid, NULL);
1196 /* free all pictures */
1197 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1200 SDL_FreeYUVOverlay(vp->bmp);
1204 SDL_DestroyMutex(is->pictq_mutex);
1205 SDL_DestroyCond(is->pictq_cond);
1206 SDL_DestroyMutex(is->subpq_mutex);
1207 SDL_DestroyCond(is->subpq_cond);
1210 static void do_exit(void)
1213 player_close(player);
1217 avformat_network_deinit();
1221 av_log(NULL, AV_LOG_QUIET, "");
1225 /* allocate a picture (needs to do that in main thread to avoid
1226 potential locking problems */
1227 static void alloc_picture(void *opaque)
1229 PlayerState *is = opaque;
1232 vp = &is->pictq[is->pictq_windex];
1235 SDL_FreeYUVOverlay(vp->bmp);
1237 vp->width = is->out_video_filter->inputs[0]->w;
1238 vp->height = is->out_video_filter->inputs[0]->h;
1239 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1241 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1244 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1245 /* SDL allocates a buffer smaller than requested if the video
1246 * overlay hardware is unable to support the requested size. */
1247 fprintf(stderr, "Error: the video system does not support an image\n"
1248 "size of %dx%d pixels. Try using -vf \"scale=w:h\"\n"
1249 "to reduce the image size.\n", vp->width, vp->height );
1253 SDL_LockMutex(is->pictq_mutex);
1255 SDL_CondSignal(is->pictq_cond);
1256 SDL_UnlockMutex(is->pictq_mutex);
1259 /* The 'pts' parameter is the dts of the packet / pts of the frame and
1260 * guessed if not known. */
1261 static int queue_picture(PlayerState *is, AVFrame *src_frame, double pts, int64_t pos)
1265 /* wait until we have space to put a new picture */
1266 SDL_LockMutex(is->pictq_mutex);
1268 if (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1269 is->skip_frames = FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0 - FRAME_SKIP_FACTOR));
1271 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1272 !is->videoq.abort_request) {
1273 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1275 SDL_UnlockMutex(is->pictq_mutex);
1277 if (is->videoq.abort_request)
1280 vp = &is->pictq[is->pictq_windex];
1282 vp->sar = src_frame->sample_aspect_ratio;
1284 /* alloc or resize hardware picture buffer */
1285 if (!vp->bmp || vp->reallocate ||
1286 vp->width != is->out_video_filter->inputs[0]->w ||
1287 vp->height != is->out_video_filter->inputs[0]->h) {
1293 /* the allocation must be done in the main thread to avoid
1295 event.type = FF_ALLOC_EVENT;
1296 event.user.data1 = is;
1297 SDL_PushEvent(&event);
1299 /* wait until the picture is allocated */
1300 SDL_LockMutex(is->pictq_mutex);
1301 while (!vp->allocated && !is->videoq.abort_request) {
1302 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1304 SDL_UnlockMutex(is->pictq_mutex);
1306 if (is->videoq.abort_request)
1310 /* if the frame is not skipped, then display it */
1315 /* get a pointer on the bitmap */
1316 SDL_LockYUVOverlay (vp->bmp);
1318 data[0] = vp->bmp->pixels[0];
1319 data[1] = vp->bmp->pixels[2];
1320 data[2] = vp->bmp->pixels[1];
1322 linesize[0] = vp->bmp->pitches[0];
1323 linesize[1] = vp->bmp->pitches[2];
1324 linesize[2] = vp->bmp->pitches[1];
1326 // FIXME use direct rendering
1327 av_image_copy(data, linesize, src_frame->data, src_frame->linesize,
1328 vp->pix_fmt, vp->width, vp->height);
1330 /* update the bitmap content */
1331 SDL_UnlockYUVOverlay(vp->bmp);
1336 /* now we can update the picture count */
1337 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1338 is->pictq_windex = 0;
1339 SDL_LockMutex(is->pictq_mutex);
1340 vp->target_clock = compute_target_time(vp->pts, is);
1343 SDL_UnlockMutex(is->pictq_mutex);
1348 /* Compute the exact PTS for the picture if it is omitted in the stream.
1349 * The 'pts1' parameter is the dts of the packet / pts of the frame. */
1350 static int output_picture2(PlayerState *is, AVFrame *src_frame, double pts1, int64_t pos)
1352 double frame_delay, pts;
1358 /* update video clock with pts, if present */
1359 is->video_clock = pts;
1361 pts = is->video_clock;
1363 /* update video clock for next frame */
1364 frame_delay = av_q2d(is->video_dec->time_base);
1365 /* For MPEG-2, the frame can be repeated, so we update the
1366 clock accordingly */
1367 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1368 is->video_clock += frame_delay;
1370 ret = queue_picture(is, src_frame, pts, pos);
1371 av_frame_unref(src_frame);
1375 static int get_video_frame(PlayerState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1379 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1382 if (pkt->data == flush_pkt.data) {
1383 avcodec_flush_buffers(is->video_dec);
1385 SDL_LockMutex(is->pictq_mutex);
1386 // Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1387 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1388 is->pictq[i].target_clock= 0;
1390 while (is->pictq_size && !is->videoq.abort_request) {
1391 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1393 is->video_current_pos = -1;
1394 SDL_UnlockMutex(is->pictq_mutex);
1396 init_pts_correction(&is->pts_ctx);
1397 is->frame_last_pts = AV_NOPTS_VALUE;
1398 is->frame_last_delay = 0;
1399 is->frame_timer = (double)av_gettime_relative() / 1000000.0;
1400 is->skip_frames = 1;
1401 is->skip_frames_index = 0;
1405 avcodec_decode_video2(is->video_dec, frame, &got_picture, pkt);
1408 if (decoder_reorder_pts == -1) {
1409 *pts = guess_correct_pts(&is->pts_ctx, frame->pkt_pts, frame->pkt_dts);
1410 } else if (decoder_reorder_pts) {
1411 *pts = frame->pkt_pts;
1413 *pts = frame->pkt_dts;
1416 if (*pts == AV_NOPTS_VALUE) {
1419 if (is->video_st->sample_aspect_ratio.num) {
1420 frame->sample_aspect_ratio = is->video_st->sample_aspect_ratio;
1423 is->skip_frames_index += 1;
1424 if (is->skip_frames_index >= is->skip_frames) {
1425 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1428 av_frame_unref(frame);
1433 static int configure_video_filters(AVFilterGraph *graph, PlayerState *is, const char *vfilters)
1435 char sws_flags_str[128];
1436 char buffersrc_args[256];
1438 AVFilterContext *filt_src = NULL, *filt_out = NULL, *last_filter;
1439 AVCodecContext *codec = is->video_dec;
1441 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%"PRId64, sws_flags);
1442 graph->scale_sws_opts = av_strdup(sws_flags_str);
1444 snprintf(buffersrc_args, sizeof(buffersrc_args), "%d:%d:%d:%d:%d:%d:%d",
1445 codec->width, codec->height, codec->pix_fmt,
1446 is->video_st->time_base.num, is->video_st->time_base.den,
1447 codec->sample_aspect_ratio.num, codec->sample_aspect_ratio.den);
1450 if ((ret = avfilter_graph_create_filter(&filt_src,
1451 avfilter_get_by_name("buffer"),
1452 "src", buffersrc_args, NULL,
1455 if ((ret = avfilter_graph_create_filter(&filt_out,
1456 avfilter_get_by_name("buffersink"),
1457 "out", NULL, NULL, graph)) < 0)
1460 last_filter = filt_out;
1462 /* Note: this macro adds a filter before the lastly added filter, so the
1463 * processing order of the filters is in reverse */
1464 #define INSERT_FILT(name, arg) do { \
1465 AVFilterContext *filt_ctx; \
1467 ret = avfilter_graph_create_filter(&filt_ctx, \
1468 avfilter_get_by_name(name), \
1469 "avplay_" name, arg, NULL, graph); \
1473 ret = avfilter_link(filt_ctx, 0, last_filter, 0); \
1477 last_filter = filt_ctx; \
1480 INSERT_FILT("format", "yuv420p");
1483 uint8_t* displaymatrix = av_stream_get_side_data(is->video_st,
1484 AV_PKT_DATA_DISPLAYMATRIX, NULL);
1485 if (displaymatrix) {
1486 double rot = av_display_rotation_get((int32_t*) displaymatrix);
1487 if (rot < -135 || rot > 135) {
1488 INSERT_FILT("vflip", NULL);
1489 INSERT_FILT("hflip", NULL);
1490 } else if (rot < -45) {
1491 INSERT_FILT("transpose", "dir=clock");
1492 } else if (rot > 45) {
1493 INSERT_FILT("transpose", "dir=cclock");
1499 AVFilterInOut *outputs = avfilter_inout_alloc();
1500 AVFilterInOut *inputs = avfilter_inout_alloc();
1502 outputs->name = av_strdup("in");
1503 outputs->filter_ctx = filt_src;
1504 outputs->pad_idx = 0;
1505 outputs->next = NULL;
1507 inputs->name = av_strdup("out");
1508 inputs->filter_ctx = last_filter;
1509 inputs->pad_idx = 0;
1510 inputs->next = NULL;
1512 if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1515 if ((ret = avfilter_link(filt_src, 0, last_filter, 0)) < 0)
1519 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1522 is->in_video_filter = filt_src;
1523 is->out_video_filter = filt_out;
1528 static int video_thread(void *arg)
1530 AVPacket pkt = { 0 };
1531 PlayerState *is = arg;
1532 AVFrame *frame = av_frame_alloc();
1537 AVFilterGraph *graph = avfilter_graph_alloc();
1538 AVFilterContext *filt_out = NULL, *filt_in = NULL;
1539 int last_w = is->video_dec->width;
1540 int last_h = is->video_dec->height;
1542 av_frame_free(&frame);
1543 return AVERROR(ENOMEM);
1546 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1548 filt_in = is->in_video_filter;
1549 filt_out = is->out_video_filter;
1552 avfilter_graph_free(&graph);
1553 return AVERROR(ENOMEM);
1558 while (is->paused && !is->videoq.abort_request)
1561 av_packet_unref(&pkt);
1563 ret = get_video_frame(is, frame, &pts_int, &pkt);
1570 if ( last_w != is->video_dec->width
1571 || last_h != is->video_dec->height) {
1572 av_log(NULL, AV_LOG_TRACE, "Changing size %dx%d -> %dx%d\n", last_w, last_h,
1573 is->video_dec->width, is->video_dec->height);
1574 avfilter_graph_free(&graph);
1575 graph = avfilter_graph_alloc();
1576 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1578 filt_in = is->in_video_filter;
1579 filt_out = is->out_video_filter;
1580 last_w = is->video_dec->width;
1581 last_h = is->video_dec->height;
1584 frame->pts = pts_int;
1585 ret = av_buffersrc_add_frame(filt_in, frame);
1590 ret = av_buffersink_get_frame(filt_out, frame);
1596 pts_int = frame->pts;
1597 tb = filt_out->inputs[0]->time_base;
1598 if (av_cmp_q(tb, is->video_st->time_base)) {
1599 av_unused int64_t pts1 = pts_int;
1600 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1601 av_log(NULL, AV_LOG_TRACE, "video_thread(): "
1602 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1603 tb.num, tb.den, pts1,
1604 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1606 pts = pts_int * av_q2d(is->video_st->time_base);
1607 ret = output_picture2(is, frame, pts, 0);
1616 stream_pause(player);
1619 av_freep(&vfilters);
1620 avfilter_graph_free(&graph);
1621 av_packet_unref(&pkt);
1622 av_frame_free(&frame);
1626 static int subtitle_thread(void *arg)
1628 PlayerState *is = arg;
1630 AVPacket pkt1, *pkt = &pkt1;
1634 int r, g, b, y, u, v, a;
1637 while (is->paused && !is->subtitleq.abort_request) {
1640 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1643 if (pkt->data == flush_pkt.data) {
1644 avcodec_flush_buffers(is->subtitle_dec);
1647 SDL_LockMutex(is->subpq_mutex);
1648 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1649 !is->subtitleq.abort_request) {
1650 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1652 SDL_UnlockMutex(is->subpq_mutex);
1654 if (is->subtitleq.abort_request)
1657 sp = &is->subpq[is->subpq_windex];
1659 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1660 this packet, if any */
1662 if (pkt->pts != AV_NOPTS_VALUE)
1663 pts = av_q2d(is->subtitle_dec->time_base) * pkt->pts;
1665 avcodec_decode_subtitle2(is->subtitle_dec, &sp->sub,
1666 &got_subtitle, pkt);
1668 if (got_subtitle && sp->sub.format == 0) {
1671 for (i = 0; i < sp->sub.num_rects; i++)
1673 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1675 RGBA_IN(r, g, b, a, (uint32_t *)sp->sub.rects[i]->data[1] + j);
1676 y = RGB_TO_Y_CCIR(r, g, b);
1677 u = RGB_TO_U_CCIR(r, g, b, 0);
1678 v = RGB_TO_V_CCIR(r, g, b, 0);
1679 YUVA_OUT((uint32_t *)sp->sub.rects[i]->data[1] + j, y, u, v, a);
1683 /* now we can update the picture count */
1684 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1685 is->subpq_windex = 0;
1686 SDL_LockMutex(is->subpq_mutex);
1688 SDL_UnlockMutex(is->subpq_mutex);
1690 av_packet_unref(pkt);
1695 /* copy samples for viewing in editor window */
1696 static void update_sample_display(PlayerState *is, short *samples, int samples_size)
1700 size = samples_size / sizeof(short);
1702 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1705 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1707 is->sample_array_index += len;
1708 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1709 is->sample_array_index = 0;
1714 /* return the new audio buffer size (samples can be added or deleted
1715 to get better sync if video or external master clock) */
1716 static int synchronize_audio(PlayerState *is, short *samples,
1717 int samples_size1, double pts)
1719 int n, samples_size;
1722 n = is->sdl_channels * av_get_bytes_per_sample(is->sdl_sample_fmt);
1723 samples_size = samples_size1;
1725 /* if not master, then we try to remove or add samples to correct the clock */
1726 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1727 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1728 double diff, avg_diff;
1729 int wanted_size, min_size, max_size, nb_samples;
1731 ref_clock = get_master_clock(is);
1732 diff = get_audio_clock(is) - ref_clock;
1734 if (diff < AV_NOSYNC_THRESHOLD) {
1735 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1736 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1737 /* not enough measures to have a correct estimate */
1738 is->audio_diff_avg_count++;
1740 /* estimate the A-V difference */
1741 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1743 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1744 wanted_size = samples_size + ((int)(diff * is->sdl_sample_rate) * n);
1745 nb_samples = samples_size / n;
1747 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1748 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1749 if (wanted_size < min_size)
1750 wanted_size = min_size;
1751 else if (wanted_size > max_size)
1752 wanted_size = max_size;
1754 /* add or remove samples to correction the synchro */
1755 if (wanted_size < samples_size) {
1756 /* remove samples */
1757 samples_size = wanted_size;
1758 } else if (wanted_size > samples_size) {
1759 uint8_t *samples_end, *q;
1763 nb = (samples_size - wanted_size);
1764 samples_end = (uint8_t *)samples + samples_size - n;
1765 q = samples_end + n;
1767 memcpy(q, samples_end, n);
1771 samples_size = wanted_size;
1774 av_log(NULL, AV_LOG_TRACE, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1775 diff, avg_diff, samples_size - samples_size1,
1776 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1779 /* too big difference : may be initial PTS errors, so
1781 is->audio_diff_avg_count = 0;
1782 is->audio_diff_cum = 0;
1786 return samples_size;
1789 /* decode one audio frame and returns its uncompressed size */
1790 static int audio_decode_frame(PlayerState *is, double *pts_ptr)
1792 AVPacket *pkt_temp = &is->audio_pkt_temp;
1793 AVPacket *pkt = &is->audio_pkt;
1794 AVCodecContext *dec = is->audio_dec;
1795 int n, len1, data_size, got_frame;
1798 int flush_complete = 0;
1801 /* NOTE: the audio packet can contain several frames */
1802 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
1803 int resample_changed, audio_resample;
1806 if (!(is->frame = av_frame_alloc()))
1807 return AVERROR(ENOMEM);
1813 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
1815 /* if error, we skip the frame */
1820 pkt_temp->data += len1;
1821 pkt_temp->size -= len1;
1824 /* stop sending empty packets if the decoder is finished */
1825 if (!pkt_temp->data && (dec->codec->capabilities & AV_CODEC_CAP_DELAY))
1829 data_size = av_samples_get_buffer_size(NULL, dec->channels,
1830 is->frame->nb_samples,
1831 is->frame->format, 1);
1833 audio_resample = is->frame->format != is->sdl_sample_fmt ||
1834 is->frame->channel_layout != is->sdl_channel_layout ||
1835 is->frame->sample_rate != is->sdl_sample_rate;
1837 resample_changed = is->frame->format != is->resample_sample_fmt ||
1838 is->frame->channel_layout != is->resample_channel_layout ||
1839 is->frame->sample_rate != is->resample_sample_rate;
1841 if ((!is->avr && audio_resample) || resample_changed) {
1844 avresample_close(is->avr);
1845 else if (audio_resample) {
1846 is->avr = avresample_alloc_context();
1848 fprintf(stderr, "error allocating AVAudioResampleContext\n");
1852 if (audio_resample) {
1853 av_opt_set_int(is->avr, "in_channel_layout", is->frame->channel_layout, 0);
1854 av_opt_set_int(is->avr, "in_sample_fmt", is->frame->format, 0);
1855 av_opt_set_int(is->avr, "in_sample_rate", is->frame->sample_rate, 0);
1856 av_opt_set_int(is->avr, "out_channel_layout", is->sdl_channel_layout, 0);
1857 av_opt_set_int(is->avr, "out_sample_fmt", is->sdl_sample_fmt, 0);
1858 av_opt_set_int(is->avr, "out_sample_rate", is->sdl_sample_rate, 0);
1860 if ((ret = avresample_open(is->avr)) < 0) {
1861 fprintf(stderr, "error initializing libavresample\n");
1865 is->resample_sample_fmt = is->frame->format;
1866 is->resample_channel_layout = is->frame->channel_layout;
1867 is->resample_sample_rate = is->frame->sample_rate;
1870 if (audio_resample) {
1872 int out_samples, out_size, out_linesize;
1873 int osize = av_get_bytes_per_sample(is->sdl_sample_fmt);
1874 int nb_samples = is->frame->nb_samples;
1876 out_size = av_samples_get_buffer_size(&out_linesize,
1879 is->sdl_sample_fmt, 0);
1880 tmp_out = av_realloc(is->audio_buf1, out_size);
1882 return AVERROR(ENOMEM);
1883 is->audio_buf1 = tmp_out;
1885 out_samples = avresample_convert(is->avr,
1887 out_linesize, nb_samples,
1889 is->frame->linesize[0],
1890 is->frame->nb_samples);
1891 if (out_samples < 0) {
1892 fprintf(stderr, "avresample_convert() failed\n");
1895 is->audio_buf = is->audio_buf1;
1896 data_size = out_samples * osize * is->sdl_channels;
1898 is->audio_buf = is->frame->data[0];
1901 /* if no pts, then compute it */
1902 pts = is->audio_clock;
1904 n = is->sdl_channels * av_get_bytes_per_sample(is->sdl_sample_fmt);
1905 is->audio_clock += (double)data_size /
1906 (double)(n * is->sdl_sample_rate);
1909 static double last_clock;
1910 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1911 is->audio_clock - last_clock,
1912 is->audio_clock, pts);
1913 last_clock = is->audio_clock;
1919 /* free the current packet */
1921 av_packet_unref(pkt);
1922 memset(pkt_temp, 0, sizeof(*pkt_temp));
1924 if (is->paused || is->audioq.abort_request) {
1928 /* read next packet */
1929 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
1932 if (pkt->data == flush_pkt.data) {
1933 avcodec_flush_buffers(dec);
1939 /* if update the audio clock with the pts */
1940 if (pkt->pts != AV_NOPTS_VALUE) {
1941 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1946 /* prepare a new audio buffer */
1947 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1949 PlayerState *is = opaque;
1950 int audio_size, len1;
1953 audio_callback_time = av_gettime_relative();
1956 if (is->audio_buf_index >= is->audio_buf_size) {
1957 audio_size = audio_decode_frame(is, &pts);
1958 if (audio_size < 0) {
1959 /* if error, just output silence */
1960 is->audio_buf = is->silence_buf;
1961 is->audio_buf_size = sizeof(is->silence_buf);
1964 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1965 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1967 is->audio_buf_size = audio_size;
1969 is->audio_buf_index = 0;
1971 len1 = is->audio_buf_size - is->audio_buf_index;
1974 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1977 is->audio_buf_index += len1;
1981 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type)
1983 const AVCodecDescriptor *desc;
1984 AVCodec *codec = avcodec_find_decoder_by_name(name);
1986 if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
1987 codec = avcodec_find_decoder(desc->id);
1989 av_log(NULL, AV_LOG_VERBOSE, "Matched decoder '%s' for codec '%s'.\n",
1990 codec->name, desc->name);
1994 av_log(NULL, AV_LOG_FATAL, "Unknown decoder '%s'\n", name);
1998 if (codec->type != type) {
1999 av_log(NULL, AV_LOG_FATAL, "Invalid decoder type '%s'\n", name);
2006 static AVCodec *choose_decoder(PlayerState *is, AVFormatContext *ic, AVStream *st)
2008 char *codec_name = NULL;
2011 for (i = 0; i < is->nb_codec_names; i++) {
2012 char *spec = is->codec_names[i].specifier;
2013 if ((ret = check_stream_specifier(ic, st, spec)) > 0)
2014 codec_name = is->codec_names[i].u.str;
2020 AVCodec *codec = find_codec_or_die(codec_name, st->codecpar->codec_type);
2021 st->codecpar->codec_id = codec->id;
2024 return avcodec_find_decoder(st->codecpar->codec_id);
2027 /* open a given stream. Return 0 if OK */
2028 static int stream_component_open(PlayerState *is, int stream_index)
2030 AVFormatContext *ic = is->ic;
2031 AVCodecContext *avctx;
2033 SDL_AudioSpec wanted_spec, spec;
2035 AVDictionaryEntry *t = NULL;
2038 if (stream_index < 0 || stream_index >= ic->nb_streams)
2041 avctx = avcodec_alloc_context3(NULL);
2043 return AVERROR(ENOMEM);
2045 ret = avcodec_parameters_to_context(avctx, ic->streams[stream_index]->codecpar);
2047 avcodec_free_context(&avctx);
2051 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], NULL);
2053 codec = choose_decoder(is, ic, ic->streams[stream_index]);
2054 avctx->workaround_bugs = workaround_bugs;
2055 avctx->idct_algo = idct;
2056 avctx->skip_frame = skip_frame;
2057 avctx->skip_idct = skip_idct;
2058 avctx->skip_loop_filter = skip_loop_filter;
2059 avctx->error_concealment = error_concealment;
2062 avctx->flags2 |= AV_CODEC_FLAG2_FAST;
2064 if (!av_dict_get(opts, "threads", NULL, 0))
2065 av_dict_set(&opts, "threads", "auto", 0);
2066 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO)
2067 av_dict_set(&opts, "refcounted_frames", "1", 0);
2069 (ret = avcodec_open2(avctx, codec, &opts)) < 0) {
2072 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2073 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2074 ret = AVERROR_OPTION_NOT_FOUND;
2078 /* prepare audio output */
2079 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2080 is->sdl_sample_rate = avctx->sample_rate;
2082 if (!avctx->channel_layout)
2083 avctx->channel_layout = av_get_default_channel_layout(avctx->channels);
2084 if (!avctx->channel_layout) {
2085 fprintf(stderr, "unable to guess channel layout\n");
2086 ret = AVERROR_INVALIDDATA;
2089 if (avctx->channels == 1)
2090 is->sdl_channel_layout = AV_CH_LAYOUT_MONO;
2092 is->sdl_channel_layout = AV_CH_LAYOUT_STEREO;
2093 is->sdl_channels = av_get_channel_layout_nb_channels(is->sdl_channel_layout);
2095 wanted_spec.format = AUDIO_S16SYS;
2096 wanted_spec.freq = is->sdl_sample_rate;
2097 wanted_spec.channels = is->sdl_channels;
2098 wanted_spec.silence = 0;
2099 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2100 wanted_spec.callback = sdl_audio_callback;
2101 wanted_spec.userdata = is;
2102 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2103 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2104 ret = AVERROR_UNKNOWN;
2107 is->audio_hw_buf_size = spec.size;
2108 is->sdl_sample_fmt = AV_SAMPLE_FMT_S16;
2109 is->resample_sample_fmt = is->sdl_sample_fmt;
2110 is->resample_channel_layout = avctx->channel_layout;
2111 is->resample_sample_rate = avctx->sample_rate;
2114 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2115 switch (avctx->codec_type) {
2116 case AVMEDIA_TYPE_AUDIO:
2117 is->audio_stream = stream_index;
2118 is->audio_st = ic->streams[stream_index];
2119 is->audio_dec = avctx;
2120 is->audio_buf_size = 0;
2121 is->audio_buf_index = 0;
2123 /* init averaging filter */
2124 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2125 is->audio_diff_avg_count = 0;
2126 /* since we do not have a precise enough audio FIFO fullness,
2127 we correct audio sync only if larger than this threshold */
2128 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2130 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2131 packet_queue_init(&is->audioq);
2134 case AVMEDIA_TYPE_VIDEO:
2135 is->video_stream = stream_index;
2136 is->video_st = ic->streams[stream_index];
2137 is->video_dec = avctx;
2139 packet_queue_init(&is->videoq);
2140 is->video_tid = SDL_CreateThread(video_thread, is);
2142 case AVMEDIA_TYPE_SUBTITLE:
2143 is->subtitle_stream = stream_index;
2144 is->subtitle_st = ic->streams[stream_index];
2145 is->subtitle_dec = avctx;
2146 packet_queue_init(&is->subtitleq);
2148 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2155 av_dict_free(&opts);
2160 static void stream_component_close(PlayerState *is, int stream_index)
2162 AVFormatContext *ic = is->ic;
2163 AVCodecParameters *par;
2165 if (stream_index < 0 || stream_index >= ic->nb_streams)
2167 par = ic->streams[stream_index]->codecpar;
2169 switch (par->codec_type) {
2170 case AVMEDIA_TYPE_AUDIO:
2171 packet_queue_abort(&is->audioq);
2175 packet_queue_end(&is->audioq);
2176 av_packet_unref(&is->audio_pkt);
2178 avresample_free(&is->avr);
2179 av_freep(&is->audio_buf1);
2180 is->audio_buf = NULL;
2181 av_frame_free(&is->frame);
2184 av_rdft_end(is->rdft);
2185 av_freep(&is->rdft_data);
2190 case AVMEDIA_TYPE_VIDEO:
2191 packet_queue_abort(&is->videoq);
2193 /* note: we also signal this mutex to make sure we deblock the
2194 video thread in all cases */
2195 SDL_LockMutex(is->pictq_mutex);
2196 SDL_CondSignal(is->pictq_cond);
2197 SDL_UnlockMutex(is->pictq_mutex);
2199 SDL_WaitThread(is->video_tid, NULL);
2201 packet_queue_end(&is->videoq);
2203 case AVMEDIA_TYPE_SUBTITLE:
2204 packet_queue_abort(&is->subtitleq);
2206 /* note: we also signal this mutex to make sure we deblock the
2207 video thread in all cases */
2208 SDL_LockMutex(is->subpq_mutex);
2209 is->subtitle_stream_changed = 1;
2211 SDL_CondSignal(is->subpq_cond);
2212 SDL_UnlockMutex(is->subpq_mutex);
2214 SDL_WaitThread(is->subtitle_tid, NULL);
2216 packet_queue_end(&is->subtitleq);
2222 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2223 switch (par->codec_type) {
2224 case AVMEDIA_TYPE_AUDIO:
2225 avcodec_free_context(&is->audio_dec);
2226 is->audio_st = NULL;
2227 is->audio_stream = -1;
2229 case AVMEDIA_TYPE_VIDEO:
2230 avcodec_free_context(&is->video_dec);
2231 is->video_st = NULL;
2232 is->video_stream = -1;
2234 case AVMEDIA_TYPE_SUBTITLE:
2235 avcodec_free_context(&is->subtitle_dec);
2236 is->subtitle_st = NULL;
2237 is->subtitle_stream = -1;
2244 /* since we have only one decoding thread, we can use a global
2245 variable instead of a thread local variable */
2246 static PlayerState *global_video_state;
2248 static int decode_interrupt_cb(void *ctx)
2250 return global_video_state && global_video_state->abort_request;
2253 static void stream_close(PlayerState *is)
2255 /* disable interrupting */
2256 global_video_state = NULL;
2258 /* close each stream */
2259 if (is->audio_stream >= 0)
2260 stream_component_close(is, is->audio_stream);
2261 if (is->video_stream >= 0)
2262 stream_component_close(is, is->video_stream);
2263 if (is->subtitle_stream >= 0)
2264 stream_component_close(is, is->subtitle_stream);
2266 avformat_close_input(&is->ic);
2270 static int stream_setup(PlayerState *is)
2272 AVFormatContext *ic = NULL;
2274 int st_index[AVMEDIA_TYPE_NB];
2275 AVDictionaryEntry *t;
2276 AVDictionary **opts;
2277 int orig_nb_streams;
2279 memset(st_index, -1, sizeof(st_index));
2280 is->video_stream = -1;
2281 is->audio_stream = -1;
2282 is->subtitle_stream = -1;
2284 global_video_state = is;
2286 ic = avformat_alloc_context();
2288 av_log(NULL, AV_LOG_FATAL, "Could not allocate context.\n");
2289 ret = AVERROR(ENOMEM);
2292 ic->interrupt_callback.callback = decode_interrupt_cb;
2293 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2295 print_error(is->filename, err);
2300 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2301 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2302 ret = AVERROR_OPTION_NOT_FOUND;
2308 ic->flags |= AVFMT_FLAG_GENPTS;
2310 opts = setup_find_stream_info_opts(ic, codec_opts);
2311 orig_nb_streams = ic->nb_streams;
2313 for (i = 0; i < ic->nb_streams; i++)
2314 choose_decoder(is, ic, ic->streams[i]);
2316 err = avformat_find_stream_info(ic, opts);
2318 for (i = 0; i < orig_nb_streams; i++)
2319 av_dict_free(&opts[i]);
2323 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2329 ic->pb->eof_reached = 0; // FIXME hack, avplay maybe should not use url_feof() to test for the end
2331 if (seek_by_bytes < 0)
2332 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2334 /* if seeking requested, we execute it */
2335 if (start_time != AV_NOPTS_VALUE) {
2338 timestamp = start_time;
2339 /* add the stream start time */
2340 if (ic->start_time != AV_NOPTS_VALUE)
2341 timestamp += ic->start_time;
2342 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2344 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2345 is->filename, (double)timestamp / AV_TIME_BASE);
2349 for (i = 0; i < ic->nb_streams; i++)
2350 ic->streams[i]->discard = AVDISCARD_ALL;
2352 st_index[AVMEDIA_TYPE_VIDEO] =
2353 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2354 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2356 st_index[AVMEDIA_TYPE_AUDIO] =
2357 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2358 wanted_stream[AVMEDIA_TYPE_AUDIO],
2359 st_index[AVMEDIA_TYPE_VIDEO],
2362 st_index[AVMEDIA_TYPE_SUBTITLE] =
2363 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2364 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2365 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2366 st_index[AVMEDIA_TYPE_AUDIO] :
2367 st_index[AVMEDIA_TYPE_VIDEO]),
2370 av_dump_format(ic, 0, is->filename, 0);
2373 /* open the streams */
2374 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2375 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2379 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2380 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2383 if (!display_disable)
2387 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2388 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2391 if (is->video_stream < 0 && is->audio_stream < 0) {
2392 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2403 /* this thread gets the stream from the disk or the network */
2404 static int decode_thread(void *arg)
2406 PlayerState *is = arg;
2407 AVPacket pkt1, *pkt = &pkt1;
2408 AVFormatContext *ic = is->ic;
2409 int pkt_in_play_range = 0;
2413 if (is->abort_request)
2415 if (is->paused != is->last_paused) {
2416 is->last_paused = is->paused;
2418 is->read_pause_return = av_read_pause(ic);
2422 #if CONFIG_RTSP_DEMUXER
2423 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2424 /* wait 10 ms to avoid trying to get another packet */
2431 int64_t seek_target = is->seek_pos;
2432 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2433 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2434 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2435 // of the seek_pos/seek_rel variables
2437 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2439 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2441 if (is->audio_stream >= 0) {
2442 packet_queue_flush(&is->audioq);
2443 packet_queue_put(&is->audioq, &flush_pkt);
2445 if (is->subtitle_stream >= 0) {
2446 packet_queue_flush(&is->subtitleq);
2447 packet_queue_put(&is->subtitleq, &flush_pkt);
2449 if (is->video_stream >= 0) {
2450 packet_queue_flush(&is->videoq);
2451 packet_queue_put(&is->videoq, &flush_pkt);
2458 /* if the queue are full, no need to read more */
2459 if (!infinite_buffer &&
2460 (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2461 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream < 0)
2462 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0)
2463 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0)))) {
2469 if (is->video_stream >= 0) {
2470 av_init_packet(pkt);
2473 pkt->stream_index = is->video_stream;
2474 packet_queue_put(&is->videoq, pkt);
2476 if (is->audio_stream >= 0 &&
2477 (is->audio_dec->codec->capabilities & AV_CODEC_CAP_DELAY)) {
2478 av_init_packet(pkt);
2481 pkt->stream_index = is->audio_stream;
2482 packet_queue_put(&is->audioq, pkt);
2485 if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) {
2486 if (loop != 1 && (!loop || --loop)) {
2487 stream_seek(player, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2488 } else if (!noautoexit) {
2495 ret = av_read_frame(ic, pkt);
2497 if (ret == AVERROR_EOF || (ic->pb && ic->pb->eof_reached))
2499 if (ic->pb && ic->pb->error)
2501 SDL_Delay(100); /* wait for user event */
2504 /* check if packet is in play range specified by user, then queue, otherwise discard */
2505 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2506 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2507 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2508 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2509 <= ((double)duration / 1000000);
2510 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2511 packet_queue_put(&is->audioq, pkt);
2512 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2513 packet_queue_put(&is->videoq, pkt);
2514 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2515 packet_queue_put(&is->subtitleq, pkt);
2517 av_packet_unref(pkt);
2520 /* wait until the end */
2521 while (!is->abort_request) {
2533 event.type = FF_QUIT_EVENT;
2534 event.user.data1 = is;
2535 SDL_PushEvent(&event);
2540 static int stream_open(PlayerState *is,
2541 const char *filename, AVInputFormat *iformat)
2545 av_strlcpy(is->filename, filename, sizeof(is->filename));
2546 is->iformat = iformat;
2550 if ((ret = stream_setup(is)) < 0) {
2554 /* start video display */
2555 is->pictq_mutex = SDL_CreateMutex();
2556 is->pictq_cond = SDL_CreateCond();
2558 is->subpq_mutex = SDL_CreateMutex();
2559 is->subpq_cond = SDL_CreateCond();
2561 is->av_sync_type = av_sync_type;
2562 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2563 if (!is->refresh_tid)
2565 is->parse_tid = SDL_CreateThread(decode_thread, is);
2571 static void stream_cycle_channel(PlayerState *is, int codec_type)
2573 AVFormatContext *ic = is->ic;
2574 int start_index, stream_index;
2577 if (codec_type == AVMEDIA_TYPE_VIDEO)
2578 start_index = is->video_stream;
2579 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2580 start_index = is->audio_stream;
2582 start_index = is->subtitle_stream;
2583 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2585 stream_index = start_index;
2587 if (++stream_index >= is->ic->nb_streams)
2589 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2596 if (stream_index == start_index)
2598 st = ic->streams[stream_index];
2599 if (st->codecpar->codec_type == codec_type) {
2600 /* check that parameters are OK */
2601 switch (codec_type) {
2602 case AVMEDIA_TYPE_AUDIO:
2603 if (st->codecpar->sample_rate != 0 &&
2604 st->codecpar->channels != 0)
2607 case AVMEDIA_TYPE_VIDEO:
2608 case AVMEDIA_TYPE_SUBTITLE:
2616 stream_component_close(is, start_index);
2617 stream_component_open(is, stream_index);
2621 static void toggle_full_screen(void)
2623 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2624 /* OS X needs to empty the picture_queue */
2626 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++)
2627 player->pictq[i].reallocate = 1;
2629 is_full_screen = !is_full_screen;
2633 static void toggle_pause(void)
2636 stream_pause(player);
2640 static void step_to_next_frame(void)
2643 /* if the stream is paused unpause it, then step */
2645 stream_pause(player);
2650 static void toggle_audio_display(void)
2653 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2654 player->show_audio = (player->show_audio + 1) % 3;
2655 fill_rectangle(screen,
2656 player->xleft, player->ytop, player->width, player->height,
2658 SDL_UpdateRect(screen, player->xleft, player->ytop, player->width, player->height);
2662 static void seek_chapter(PlayerState *is, int incr)
2664 int64_t pos = get_master_clock(is) * AV_TIME_BASE;
2667 if (!is->ic->nb_chapters)
2670 /* find the current chapter */
2671 for (i = 0; i < is->ic->nb_chapters; i++) {
2672 AVChapter *ch = is->ic->chapters[i];
2673 if (av_compare_ts(pos, AV_TIME_BASE_Q, ch->start, ch->time_base) < 0) {
2681 if (i >= is->ic->nb_chapters)
2684 av_log(NULL, AV_LOG_VERBOSE, "Seeking to chapter %d.\n", i);
2685 stream_seek(is, av_rescale_q(is->ic->chapters[i]->start, is->ic->chapters[i]->time_base,
2686 AV_TIME_BASE_Q), 0, 0);
2689 /* handle an event sent by the GUI */
2690 static void event_loop(void)
2693 double incr, pos, frac;
2697 SDL_WaitEvent(&event);
2698 switch (event.type) {
2700 if (exit_on_keydown) {
2704 switch (event.key.keysym.sym) {
2710 toggle_full_screen();
2716 case SDLK_s: // S: Step to next frame
2717 step_to_next_frame();
2721 stream_cycle_channel(player, AVMEDIA_TYPE_AUDIO);
2725 stream_cycle_channel(player, AVMEDIA_TYPE_VIDEO);
2729 stream_cycle_channel(player, AVMEDIA_TYPE_SUBTITLE);
2732 toggle_audio_display();
2735 seek_chapter(player, 1);
2738 seek_chapter(player, -1);
2753 if (seek_by_bytes) {
2754 if (player->video_stream >= 0 && player->video_current_pos >= 0) {
2755 pos = player->video_current_pos;
2756 } else if (player->audio_stream >= 0 && player->audio_pkt.pos >= 0) {
2757 pos = player->audio_pkt.pos;
2759 pos = avio_tell(player->ic->pb);
2760 if (player->ic->bit_rate)
2761 incr *= player->ic->bit_rate / 8.0;
2765 stream_seek(player, pos, incr, 1);
2767 pos = get_master_clock(player);
2769 stream_seek(player, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2777 case SDL_MOUSEBUTTONDOWN:
2778 if (exit_on_mousedown) {
2782 case SDL_MOUSEMOTION:
2783 if (event.type == SDL_MOUSEBUTTONDOWN) {
2786 if (event.motion.state != SDL_PRESSED)
2791 if (seek_by_bytes || player->ic->duration <= 0) {
2792 uint64_t size = avio_size(player->ic->pb);
2793 stream_seek(player, size*x/player->width, 0, 1);
2797 int tns, thh, tmm, tss;
2798 tns = player->ic->duration / 1000000LL;
2800 tmm = (tns % 3600) / 60;
2802 frac = x / player->width;
2805 mm = (ns % 3600) / 60;
2807 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2808 hh, mm, ss, thh, tmm, tss);
2809 ts = frac * player->ic->duration;
2810 if (player->ic->start_time != AV_NOPTS_VALUE)
2811 ts += player->ic->start_time;
2812 stream_seek(player, ts, 0, 0);
2816 case SDL_VIDEORESIZE:
2818 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2819 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2820 screen_width = player->width = event.resize.w;
2821 screen_height = player->height = event.resize.h;
2828 case FF_ALLOC_EVENT:
2829 video_open(event.user.data1);
2830 alloc_picture(event.user.data1);
2832 case FF_REFRESH_EVENT:
2833 video_refresh_timer(event.user.data1);
2834 player->refresh = 0;
2842 static int opt_frame_size(void *optctx, const char *opt, const char *arg)
2844 av_log(NULL, AV_LOG_ERROR,
2845 "Option '%s' has been removed, use private format options instead\n", opt);
2846 return AVERROR(EINVAL);
2849 static int opt_width(void *optctx, const char *opt, const char *arg)
2851 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2855 static int opt_height(void *optctx, const char *opt, const char *arg)
2857 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2861 static int opt_format(void *optctx, const char *opt, const char *arg)
2863 file_iformat = av_find_input_format(arg);
2864 if (!file_iformat) {
2865 fprintf(stderr, "Unknown input format: %s\n", arg);
2866 return AVERROR(EINVAL);
2871 static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg)
2873 av_log(NULL, AV_LOG_ERROR,
2874 "Option '%s' has been removed, use private format options instead\n", opt);
2875 return AVERROR(EINVAL);
2878 static int opt_sync(void *optctx, const char *opt, const char *arg)
2880 if (!strcmp(arg, "audio"))
2881 av_sync_type = AV_SYNC_AUDIO_MASTER;
2882 else if (!strcmp(arg, "video"))
2883 av_sync_type = AV_SYNC_VIDEO_MASTER;
2884 else if (!strcmp(arg, "ext"))
2885 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2887 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2893 static int opt_seek(void *optctx, const char *opt, const char *arg)
2895 start_time = parse_time_or_die(opt, arg, 1);
2899 static int opt_duration(void *optctx, const char *opt, const char *arg)
2901 duration = parse_time_or_die(opt, arg, 1);
2905 #define OFF(x) offsetof(PlayerState, x)
2906 static const OptionDef options[] = {
2907 #include "cmdutils_common_opts.h"
2908 { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" },
2909 { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" },
2910 { "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
2911 { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" },
2912 { "an", OPT_BOOL, { &audio_disable }, "disable audio" },
2913 { "vn", OPT_BOOL, { &video_disable }, "disable video" },
2914 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
2915 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
2916 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
2917 { "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" },
2918 { "t", HAS_ARG, { .func_arg = opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
2919 { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
2920 { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" },
2921 { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" },
2922 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" },
2923 { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" },
2924 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { &workaround_bugs }, "workaround bugs", "" },
2925 { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" },
2926 { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" },
2927 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2928 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_loop_filter }, "", "" },
2929 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_frame }, "", "" },
2930 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_idct }, "", "" },
2931 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { &idct }, "set idct algo", "algo" },
2932 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { &error_concealment }, "set error concealment options", "bit_mask" },
2933 { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
2934 { "noautoexit", OPT_BOOL | OPT_EXPERT, { &noautoexit }, "Do not exit at the end of playback", "" },
2935 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" },
2936 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" },
2937 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" },
2938 { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" },
2939 { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" },
2940 { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" },
2941 { "vf", OPT_STRING | HAS_ARG, { &vfilters }, "video filters", "filter list" },
2942 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" },
2943 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { opt_default }, "generic catch all option", "" },
2944 { "i", 0, { NULL }, "avconv compatibility dummy option", ""},
2945 { "autorotate", OPT_BOOL, { &autorotate }, "automatically rotate video", "" },
2946 { "c", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFF(codec_names) }, "codec name", "codec" },
2947 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFF(codec_names) }, "codec name", "codec" },
2952 static void show_usage(void)
2954 printf("Simple media player\n");
2955 printf("usage: %s [options] input_file\n", program_name);
2959 void show_help_default(const char *opt, const char *arg)
2961 av_log_set_callback(log_callback_help);
2963 show_help_options(options, "Main options:", 0, OPT_EXPERT, 0);
2964 show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0);
2966 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
2967 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
2968 printf("\nWhile playing:\n"
2970 "f toggle full screen\n"
2972 "a cycle audio channel\n"
2973 "v cycle video channel\n"
2974 "t cycle subtitle channel\n"
2975 "w show audio waves\n"
2976 "s activate frame-step mode\n"
2977 "left/right seek backward/forward 10 seconds\n"
2978 "down/up seek backward/forward 1 minute\n"
2979 "mouse click seek to percentage in file corresponding to fraction of width\n"
2983 static void opt_input_file(void *optctx, const char *filename)
2985 if (input_filename) {
2986 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
2987 filename, input_filename);
2990 if (!strcmp(filename, "-"))
2992 input_filename = filename;
2995 /* Called from the main */
2996 int main(int argc, char **argv)
3000 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3001 parse_loglevel(argc, argv, options);
3003 /* register all codecs, demux and protocols */
3004 avcodec_register_all();
3006 avdevice_register_all();
3008 avfilter_register_all();
3010 avformat_network_init();
3016 parse_options(player, argc, argv, options, opt_input_file);
3018 if (!input_filename) {
3020 fprintf(stderr, "An input file must be specified\n");
3021 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3025 if (display_disable) {
3028 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3029 #if !defined(__MINGW32__) && !defined(__APPLE__)
3030 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3032 if (SDL_Init (flags)) {
3033 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3037 if (!display_disable) {
3038 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3039 fs_screen_width = vi->current_w;
3040 fs_screen_height = vi->current_h;
3043 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3044 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3045 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3047 av_init_packet(&flush_pkt);
3048 flush_pkt.data = (uint8_t *)&flush_pkt;
3050 if (stream_open(player, input_filename, file_iformat) < 0) {
3051 fprintf(stderr, "Could not setup the player\n");
3052 stream_close(player);