2
* ffplay : Simple Media Player based on the Libav libraries
3
* Copyright (c) 2003 Fabrice Bellard
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* 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
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* version 2.1 of the License, or (at your option) any later version.
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* Libav is distributed in the hope that it will be useful,
13
* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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#include "libavutil/avstring.h"
27
#include "libavutil/colorspace.h"
28
#include "libavutil/pixdesc.h"
29
#include "libavutil/imgutils.h"
30
#include "libavutil/dict.h"
31
#include "libavutil/parseutils.h"
32
#include "libavutil/samplefmt.h"
33
#include "libavformat/avformat.h"
34
#include "libavdevice/avdevice.h"
35
#include "libswscale/swscale.h"
36
#include "libavcodec/audioconvert.h"
37
#include "libavutil/opt.h"
38
#include "libavcodec/avfft.h"
41
# include "libavfilter/avfilter.h"
42
# include "libavfilter/avfiltergraph.h"
48
#include <SDL_thread.h>
51
#undef main /* We don't want SDL to override our main() */
57
const char program_name[] = "ffplay";
58
const int program_birth_year = 2003;
60
#define MAX_QUEUE_SIZE (15 * 1024 * 1024)
61
#define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
64
/* SDL audio buffer size, in samples. Should be small to have precise
65
A/V sync as SDL does not have hardware buffer fullness info. */
66
#define SDL_AUDIO_BUFFER_SIZE 1024
68
/* no AV sync correction is done if below the AV sync threshold */
69
#define AV_SYNC_THRESHOLD 0.01
70
/* no AV correction is done if too big error */
71
#define AV_NOSYNC_THRESHOLD 10.0
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#define FRAME_SKIP_FACTOR 0.05
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/* maximum audio speed change to get correct sync */
76
#define SAMPLE_CORRECTION_PERCENT_MAX 10
78
/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
79
#define AUDIO_DIFF_AVG_NB 20
81
/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
82
#define SAMPLE_ARRAY_SIZE (2*65536)
84
static int sws_flags = SWS_BICUBIC;
86
typedef struct PacketQueue {
87
AVPacketList *first_pkt, *last_pkt;
95
#define VIDEO_PICTURE_QUEUE_SIZE 2
96
#define SUBPICTURE_QUEUE_SIZE 4
98
typedef struct VideoPicture {
99
double pts; ///<presentation time stamp for this picture
100
double target_clock; ///<av_gettime() time at which this should be displayed ideally
101
int64_t pos; ///<byte position in file
103
int width, height; /* source height & width */
105
enum PixelFormat pix_fmt;
108
AVFilterBufferRef *picref;
112
typedef struct SubPicture {
113
double pts; /* presentation time stamp for this picture */
118
AV_SYNC_AUDIO_MASTER, /* default choice */
119
AV_SYNC_VIDEO_MASTER,
120
AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
123
typedef struct VideoState {
124
SDL_Thread *parse_tid;
125
SDL_Thread *video_tid;
126
SDL_Thread *refresh_tid;
127
AVInputFormat *iformat;
136
int read_pause_return;
138
int dtg_active_format;
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;
153
int audio_hw_buf_size;
154
/* samples output by the codec. we reserve more space for avsync
156
DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
157
DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
159
unsigned int audio_buf_size; /* in bytes */
160
int audio_buf_index; /* in bytes */
161
AVPacket audio_pkt_temp;
163
enum AVSampleFormat audio_src_fmt;
164
AVAudioConvert *reformat_ctx;
166
int show_audio; /* if true, display audio samples */
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int16_t sample_array[SAMPLE_ARRAY_SIZE];
168
int sample_array_index;
172
FFTSample *rdft_data;
175
SDL_Thread *subtitle_tid;
177
int subtitle_stream_changed;
178
AVStream *subtitle_st;
179
PacketQueue subtitleq;
180
SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
181
int subpq_size, subpq_rindex, subpq_windex;
182
SDL_mutex *subpq_mutex;
183
SDL_cond *subpq_cond;
186
double frame_last_pts;
187
double frame_last_delay;
188
double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
192
double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
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double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
194
int64_t video_current_pos; ///<current displayed file pos
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VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
196
int pictq_size, pictq_rindex, pictq_windex;
197
SDL_mutex *pictq_mutex;
198
SDL_cond *pictq_cond;
200
struct SwsContext *img_convert_ctx;
203
// QETimer *video_timer;
205
int width, height, xleft, ytop;
207
PtsCorrectionContext pts_ctx;
210
AVFilterContext *out_video_filter; ///<the last filter in the video chain
214
float skip_frames_index;
218
static void show_help(void);
220
/* options specified by the user */
221
static AVInputFormat *file_iformat;
222
static const char *input_filename;
223
static const char *window_title;
224
static int fs_screen_width;
225
static int fs_screen_height;
226
static int screen_width = 0;
227
static int screen_height = 0;
228
static int frame_width = 0;
229
static int frame_height = 0;
230
static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
231
static int audio_disable;
232
static int video_disable;
233
static int wanted_stream[AVMEDIA_TYPE_NB]={
234
[AVMEDIA_TYPE_AUDIO]=-1,
235
[AVMEDIA_TYPE_VIDEO]=-1,
236
[AVMEDIA_TYPE_SUBTITLE]=-1,
238
static int seek_by_bytes=-1;
239
static int display_disable;
240
static int show_status = 1;
241
static int av_sync_type = AV_SYNC_AUDIO_MASTER;
242
static int64_t start_time = AV_NOPTS_VALUE;
243
static int64_t duration = AV_NOPTS_VALUE;
244
static int debug = 0;
245
static int debug_mv = 0;
247
static int thread_count = 1;
248
static int workaround_bugs = 1;
250
static int genpts = 0;
251
static int lowres = 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_recognition = FF_ER_CAREFUL;
257
static int error_concealment = 3;
258
static int decoder_reorder_pts= -1;
260
static int exit_on_keydown;
261
static int exit_on_mousedown;
263
static int framedrop=1;
265
static int rdftspeed=20;
267
static char *vfilters = NULL;
270
/* current context */
271
static int is_full_screen;
272
static VideoState *cur_stream;
273
static int64_t audio_callback_time;
275
static AVPacket flush_pkt;
277
#define FF_ALLOC_EVENT (SDL_USEREVENT)
278
#define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
279
#define FF_QUIT_EVENT (SDL_USEREVENT + 2)
281
static SDL_Surface *screen;
283
static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
285
/* packet queue handling */
286
static void packet_queue_init(PacketQueue *q)
288
memset(q, 0, sizeof(PacketQueue));
289
q->mutex = SDL_CreateMutex();
290
q->cond = SDL_CreateCond();
291
packet_queue_put(q, &flush_pkt);
294
static void packet_queue_flush(PacketQueue *q)
296
AVPacketList *pkt, *pkt1;
298
SDL_LockMutex(q->mutex);
299
for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
301
av_free_packet(&pkt->pkt);
308
SDL_UnlockMutex(q->mutex);
311
static void packet_queue_end(PacketQueue *q)
313
packet_queue_flush(q);
314
SDL_DestroyMutex(q->mutex);
315
SDL_DestroyCond(q->cond);
318
static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
322
/* duplicate the packet */
323
if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
326
pkt1 = av_malloc(sizeof(AVPacketList));
333
SDL_LockMutex(q->mutex);
339
q->last_pkt->next = pkt1;
342
q->size += pkt1->pkt.size + sizeof(*pkt1);
343
/* XXX: should duplicate packet data in DV case */
344
SDL_CondSignal(q->cond);
346
SDL_UnlockMutex(q->mutex);
350
static void packet_queue_abort(PacketQueue *q)
352
SDL_LockMutex(q->mutex);
354
q->abort_request = 1;
356
SDL_CondSignal(q->cond);
358
SDL_UnlockMutex(q->mutex);
361
/* return < 0 if aborted, 0 if no packet and > 0 if packet. */
362
static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
367
SDL_LockMutex(q->mutex);
370
if (q->abort_request) {
377
q->first_pkt = pkt1->next;
381
q->size -= pkt1->pkt.size + sizeof(*pkt1);
390
SDL_CondWait(q->cond, q->mutex);
393
SDL_UnlockMutex(q->mutex);
397
static inline void fill_rectangle(SDL_Surface *screen,
398
int x, int y, int w, int h, int color)
405
SDL_FillRect(screen, &rect, color);
408
#define ALPHA_BLEND(a, oldp, newp, s)\
409
((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
411
#define RGBA_IN(r, g, b, a, s)\
413
unsigned int v = ((const uint32_t *)(s))[0];\
414
a = (v >> 24) & 0xff;\
415
r = (v >> 16) & 0xff;\
416
g = (v >> 8) & 0xff;\
420
#define YUVA_IN(y, u, v, a, s, pal)\
422
unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
423
a = (val >> 24) & 0xff;\
424
y = (val >> 16) & 0xff;\
425
u = (val >> 8) & 0xff;\
429
#define YUVA_OUT(d, y, u, v, a)\
431
((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
437
static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
439
int wrap, wrap3, width2, skip2;
440
int y, u, v, a, u1, v1, a1, w, h;
441
uint8_t *lum, *cb, *cr;
444
int dstx, dsty, dstw, dsth;
446
dstw = av_clip(rect->w, 0, imgw);
447
dsth = av_clip(rect->h, 0, imgh);
448
dstx = av_clip(rect->x, 0, imgw - dstw);
449
dsty = av_clip(rect->y, 0, imgh - dsth);
450
lum = dst->data[0] + dsty * dst->linesize[0];
451
cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
452
cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
454
width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
456
wrap = dst->linesize[0];
457
wrap3 = rect->pict.linesize[0];
458
p = rect->pict.data[0];
459
pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
467
YUVA_IN(y, u, v, a, p, pal);
468
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
469
cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
470
cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
476
for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
477
YUVA_IN(y, u, v, a, p, pal);
481
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
483
YUVA_IN(y, u, v, a, p + BPP, pal);
487
lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
488
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
489
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
496
YUVA_IN(y, u, v, a, p, pal);
497
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
498
cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
499
cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
503
p += wrap3 - dstw * BPP;
504
lum += wrap - dstw - dstx;
505
cb += dst->linesize[1] - width2 - skip2;
506
cr += dst->linesize[2] - width2 - skip2;
508
for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
514
YUVA_IN(y, u, v, a, p, pal);
518
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
521
YUVA_IN(y, u, v, a, p, pal);
525
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
526
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
527
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
533
for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
534
YUVA_IN(y, u, v, a, p, pal);
538
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
540
YUVA_IN(y, u, v, a, p + BPP, pal);
544
lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
548
YUVA_IN(y, u, v, a, p, pal);
552
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
554
YUVA_IN(y, u, v, a, p + BPP, pal);
558
lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
560
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
561
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
565
p += -wrap3 + 2 * BPP;
569
YUVA_IN(y, u, v, a, p, pal);
573
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
576
YUVA_IN(y, u, v, a, p, pal);
580
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
581
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
582
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
588
p += wrap3 + (wrap3 - dstw * BPP);
589
lum += wrap + (wrap - dstw - dstx);
590
cb += dst->linesize[1] - width2 - skip2;
591
cr += dst->linesize[2] - width2 - skip2;
593
/* handle odd height */
600
YUVA_IN(y, u, v, a, p, pal);
601
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
602
cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
603
cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
609
for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
610
YUVA_IN(y, u, v, a, p, pal);
614
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
616
YUVA_IN(y, u, v, a, p + BPP, pal);
620
lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
621
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
622
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
629
YUVA_IN(y, u, v, a, p, pal);
630
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
631
cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
632
cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
637
static void free_subpicture(SubPicture *sp)
639
avsubtitle_free(&sp->sub);
642
static void video_image_display(VideoState *is)
648
int width, height, x, y;
652
vp = &is->pictq[is->pictq_rindex];
655
if (vp->picref->video->pixel_aspect.num == 0)
658
aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
661
/* XXX: use variable in the frame */
662
if (is->video_st->sample_aspect_ratio.num)
663
aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
664
else if (is->video_st->codec->sample_aspect_ratio.num)
665
aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
669
if (aspect_ratio <= 0.0)
671
aspect_ratio *= (float)vp->width / (float)vp->height;
675
if (is->subpq_size > 0)
677
sp = &is->subpq[is->subpq_rindex];
679
if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
681
SDL_LockYUVOverlay (vp->bmp);
683
pict.data[0] = vp->bmp->pixels[0];
684
pict.data[1] = vp->bmp->pixels[2];
685
pict.data[2] = vp->bmp->pixels[1];
687
pict.linesize[0] = vp->bmp->pitches[0];
688
pict.linesize[1] = vp->bmp->pitches[2];
689
pict.linesize[2] = vp->bmp->pitches[1];
691
for (i = 0; i < sp->sub.num_rects; i++)
692
blend_subrect(&pict, sp->sub.rects[i],
693
vp->bmp->w, vp->bmp->h);
695
SDL_UnlockYUVOverlay (vp->bmp);
701
/* XXX: we suppose the screen has a 1.0 pixel ratio */
703
width = ((int)rint(height * aspect_ratio)) & ~1;
704
if (width > is->width) {
706
height = ((int)rint(width / aspect_ratio)) & ~1;
708
x = (is->width - width) / 2;
709
y = (is->height - height) / 2;
710
is->no_background = 0;
711
rect.x = is->xleft + x;
712
rect.y = is->ytop + y;
715
SDL_DisplayYUVOverlay(vp->bmp, &rect);
719
/* get the current audio output buffer size, in samples. With SDL, we
720
cannot have a precise information */
721
static int audio_write_get_buf_size(VideoState *is)
723
return is->audio_buf_size - is->audio_buf_index;
726
static inline int compute_mod(int a, int b)
735
static void video_audio_display(VideoState *s)
737
int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
738
int ch, channels, h, h2, bgcolor, fgcolor;
740
int rdft_bits, nb_freq;
742
for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
744
nb_freq= 1<<(rdft_bits-1);
746
/* compute display index : center on currently output samples */
747
channels = s->audio_st->codec->channels;
748
nb_display_channels = channels;
750
int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
752
delay = audio_write_get_buf_size(s);
755
/* to be more precise, we take into account the time spent since
756
the last buffer computation */
757
if (audio_callback_time) {
758
time_diff = av_gettime() - audio_callback_time;
759
delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
762
delay += 2*data_used;
763
if (delay < data_used)
766
i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
767
if(s->show_audio==1){
769
for(i=0; i<1000; i+=channels){
770
int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
771
int a= s->sample_array[idx];
772
int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
773
int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
774
int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
776
if(h<score && (b^c)<0){
783
s->last_i_start = i_start;
785
i_start = s->last_i_start;
788
bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
789
if(s->show_audio==1){
790
fill_rectangle(screen,
791
s->xleft, s->ytop, s->width, s->height,
794
fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
796
/* total height for one channel */
797
h = s->height / nb_display_channels;
798
/* graph height / 2 */
800
for(ch = 0;ch < nb_display_channels; ch++) {
802
y1 = s->ytop + ch * h + (h / 2); /* position of center line */
803
for(x = 0; x < s->width; x++) {
804
y = (s->sample_array[i] * h2) >> 15;
811
fill_rectangle(screen,
812
s->xleft + x, ys, 1, y,
815
if (i >= SAMPLE_ARRAY_SIZE)
816
i -= SAMPLE_ARRAY_SIZE;
820
fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
822
for(ch = 1;ch < nb_display_channels; ch++) {
823
y = s->ytop + ch * h;
824
fill_rectangle(screen,
825
s->xleft, y, s->width, 1,
828
SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
830
nb_display_channels= FFMIN(nb_display_channels, 2);
831
if(rdft_bits != s->rdft_bits){
832
av_rdft_end(s->rdft);
833
av_free(s->rdft_data);
834
s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
835
s->rdft_bits= rdft_bits;
836
s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
840
for(ch = 0;ch < nb_display_channels; ch++) {
841
data[ch] = s->rdft_data + 2*nb_freq*ch;
843
for(x = 0; x < 2*nb_freq; x++) {
844
double w= (x-nb_freq)*(1.0/nb_freq);
845
data[ch][x]= s->sample_array[i]*(1.0-w*w);
847
if (i >= SAMPLE_ARRAY_SIZE)
848
i -= SAMPLE_ARRAY_SIZE;
850
av_rdft_calc(s->rdft, data[ch]);
852
//least efficient way to do this, we should of course directly access it but its more than fast enough
853
for(y=0; y<s->height; y++){
854
double w= 1/sqrt(nb_freq);
855
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]));
856
int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
857
+ data[1][2*y+1]*data[1][2*y+1])) : a;
860
fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
862
fill_rectangle(screen,
863
s->xpos, s->height-y, 1, 1,
867
SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
869
if(s->xpos >= s->width)
874
static int video_open(VideoState *is){
875
int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
878
if(is_full_screen) flags |= SDL_FULLSCREEN;
879
else flags |= SDL_RESIZABLE;
881
if (is_full_screen && fs_screen_width) {
883
h = fs_screen_height;
884
} else if(!is_full_screen && screen_width){
888
}else if (is->out_video_filter && is->out_video_filter->inputs[0]){
889
w = is->out_video_filter->inputs[0]->w;
890
h = is->out_video_filter->inputs[0]->h;
892
}else if (is->video_st && is->video_st->codec->width){
893
w = is->video_st->codec->width;
894
h = is->video_st->codec->height;
900
if(screen && is->width == screen->w && screen->w == w
901
&& is->height== screen->h && screen->h == h)
905
screen = SDL_SetVideoMode(w, h, 0, flags);
907
/* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
908
screen = SDL_SetVideoMode(w, h, 24, flags);
911
fprintf(stderr, "SDL: could not set video mode - exiting\n");
915
window_title = input_filename;
916
SDL_WM_SetCaption(window_title, window_title);
918
is->width = screen->w;
919
is->height = screen->h;
924
/* display the current picture, if any */
925
static void video_display(VideoState *is)
928
video_open(cur_stream);
929
if (is->audio_st && is->show_audio)
930
video_audio_display(is);
931
else if (is->video_st)
932
video_image_display(is);
935
static int refresh_thread(void *opaque)
937
VideoState *is= opaque;
938
while(!is->abort_request){
940
event.type = FF_REFRESH_EVENT;
941
event.user.data1 = opaque;
944
SDL_PushEvent(&event);
946
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
951
/* get the current audio clock value */
952
static double get_audio_clock(VideoState *is)
955
int hw_buf_size, bytes_per_sec;
956
pts = is->audio_clock;
957
hw_buf_size = audio_write_get_buf_size(is);
960
bytes_per_sec = is->audio_st->codec->sample_rate *
961
2 * is->audio_st->codec->channels;
964
pts -= (double)hw_buf_size / bytes_per_sec;
968
/* get the current video clock value */
969
static double get_video_clock(VideoState *is)
972
return is->video_current_pts;
974
return is->video_current_pts_drift + av_gettime() / 1000000.0;
978
/* get the current external clock value */
979
static double get_external_clock(VideoState *is)
983
return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
986
/* get the current master clock value */
987
static double get_master_clock(VideoState *is)
991
if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
993
val = get_video_clock(is);
995
val = get_audio_clock(is);
996
} else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
998
val = get_audio_clock(is);
1000
val = get_video_clock(is);
1002
val = get_external_clock(is);
1007
/* seek in the stream */
1008
static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1010
if (!is->seek_req) {
1013
is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1015
is->seek_flags |= AVSEEK_FLAG_BYTE;
1020
/* pause or resume the video */
1021
static void stream_pause(VideoState *is)
1024
is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1025
if(is->read_pause_return != AVERROR(ENOSYS)){
1026
is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1028
is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1030
is->paused = !is->paused;
1033
static double compute_target_time(double frame_current_pts, VideoState *is)
1035
double delay, sync_threshold, diff;
1037
/* compute nominal delay */
1038
delay = frame_current_pts - is->frame_last_pts;
1039
if (delay <= 0 || delay >= 10.0) {
1040
/* if incorrect delay, use previous one */
1041
delay = is->frame_last_delay;
1043
is->frame_last_delay = delay;
1045
is->frame_last_pts = frame_current_pts;
1047
/* update delay to follow master synchronisation source */
1048
if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1049
is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1050
/* if video is slave, we try to correct big delays by
1051
duplicating or deleting a frame */
1052
diff = get_video_clock(is) - get_master_clock(is);
1054
/* skip or repeat frame. We take into account the
1055
delay to compute the threshold. I still don't know
1056
if it is the best guess */
1057
sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1058
if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1059
if (diff <= -sync_threshold)
1061
else if (diff >= sync_threshold)
1065
is->frame_timer += delay;
1067
av_dlog(NULL, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
1068
delay, frame_current_pts, -diff);
1070
return is->frame_timer;
1073
/* called to display each frame */
1074
static void video_refresh_timer(void *opaque)
1076
VideoState *is = opaque;
1079
SubPicture *sp, *sp2;
1083
if (is->pictq_size == 0) {
1084
//nothing to do, no picture to display in the que
1086
double time= av_gettime()/1000000.0;
1088
/* dequeue the picture */
1089
vp = &is->pictq[is->pictq_rindex];
1091
if(time < vp->target_clock)
1093
/* update current video pts */
1094
is->video_current_pts = vp->pts;
1095
is->video_current_pts_drift = is->video_current_pts - time;
1096
is->video_current_pos = vp->pos;
1097
if(is->pictq_size > 1){
1098
VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1099
assert(nextvp->target_clock >= vp->target_clock);
1100
next_target= nextvp->target_clock;
1102
next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1104
if(framedrop && time > next_target){
1105
is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1106
if(is->pictq_size > 1 || time > next_target + 0.5){
1107
/* update queue size and signal for next picture */
1108
if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1109
is->pictq_rindex = 0;
1111
SDL_LockMutex(is->pictq_mutex);
1113
SDL_CondSignal(is->pictq_cond);
1114
SDL_UnlockMutex(is->pictq_mutex);
1119
if(is->subtitle_st) {
1120
if (is->subtitle_stream_changed) {
1121
SDL_LockMutex(is->subpq_mutex);
1123
while (is->subpq_size) {
1124
free_subpicture(&is->subpq[is->subpq_rindex]);
1126
/* update queue size and signal for next picture */
1127
if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1128
is->subpq_rindex = 0;
1132
is->subtitle_stream_changed = 0;
1134
SDL_CondSignal(is->subpq_cond);
1135
SDL_UnlockMutex(is->subpq_mutex);
1137
if (is->subpq_size > 0) {
1138
sp = &is->subpq[is->subpq_rindex];
1140
if (is->subpq_size > 1)
1141
sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1145
if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1146
|| (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1148
free_subpicture(sp);
1150
/* update queue size and signal for next picture */
1151
if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1152
is->subpq_rindex = 0;
1154
SDL_LockMutex(is->subpq_mutex);
1156
SDL_CondSignal(is->subpq_cond);
1157
SDL_UnlockMutex(is->subpq_mutex);
1163
/* display picture */
1164
if (!display_disable)
1167
/* update queue size and signal for next picture */
1168
if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1169
is->pictq_rindex = 0;
1171
SDL_LockMutex(is->pictq_mutex);
1173
SDL_CondSignal(is->pictq_cond);
1174
SDL_UnlockMutex(is->pictq_mutex);
1176
} else if (is->audio_st) {
1177
/* draw the next audio frame */
1179
/* if only audio stream, then display the audio bars (better
1180
than nothing, just to test the implementation */
1182
/* display picture */
1183
if (!display_disable)
1187
static int64_t last_time;
1189
int aqsize, vqsize, sqsize;
1192
cur_time = av_gettime();
1193
if (!last_time || (cur_time - last_time) >= 30000) {
1198
aqsize = is->audioq.size;
1200
vqsize = is->videoq.size;
1201
if (is->subtitle_st)
1202
sqsize = is->subtitleq.size;
1204
if (is->audio_st && is->video_st)
1205
av_diff = get_audio_clock(is) - get_video_clock(is);
1206
printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1207
get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
1209
last_time = cur_time;
1214
static void stream_close(VideoState *is)
1218
/* XXX: use a special url_shutdown call to abort parse cleanly */
1219
is->abort_request = 1;
1220
SDL_WaitThread(is->parse_tid, NULL);
1221
SDL_WaitThread(is->refresh_tid, NULL);
1223
/* free all pictures */
1224
for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1228
avfilter_unref_buffer(vp->picref);
1233
SDL_FreeYUVOverlay(vp->bmp);
1237
SDL_DestroyMutex(is->pictq_mutex);
1238
SDL_DestroyCond(is->pictq_cond);
1239
SDL_DestroyMutex(is->subpq_mutex);
1240
SDL_DestroyCond(is->subpq_cond);
1241
#if !CONFIG_AVFILTER
1242
if (is->img_convert_ctx)
1243
sws_freeContext(is->img_convert_ctx);
1248
static void do_exit(void)
1251
stream_close(cur_stream);
1261
av_log(NULL, AV_LOG_QUIET, "");
1265
/* allocate a picture (needs to do that in main thread to avoid
1266
potential locking problems */
1267
static void alloc_picture(void *opaque)
1269
VideoState *is = opaque;
1272
vp = &is->pictq[is->pictq_windex];
1275
SDL_FreeYUVOverlay(vp->bmp);
1279
avfilter_unref_buffer(vp->picref);
1282
vp->width = is->out_video_filter->inputs[0]->w;
1283
vp->height = is->out_video_filter->inputs[0]->h;
1284
vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1286
vp->width = is->video_st->codec->width;
1287
vp->height = is->video_st->codec->height;
1288
vp->pix_fmt = is->video_st->codec->pix_fmt;
1291
vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1294
if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1295
/* SDL allocates a buffer smaller than requested if the video
1296
* overlay hardware is unable to support the requested size. */
1297
fprintf(stderr, "Error: the video system does not support an image\n"
1298
"size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1299
"to reduce the image size.\n", vp->width, vp->height );
1303
SDL_LockMutex(is->pictq_mutex);
1305
SDL_CondSignal(is->pictq_cond);
1306
SDL_UnlockMutex(is->pictq_mutex);
1311
* @param pts the dts of the pkt / pts of the frame and guessed if not known
1313
static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1320
/* wait until we have space to put a new picture */
1321
SDL_LockMutex(is->pictq_mutex);
1323
if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1324
is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1326
while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1327
!is->videoq.abort_request) {
1328
SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1330
SDL_UnlockMutex(is->pictq_mutex);
1332
if (is->videoq.abort_request)
1335
vp = &is->pictq[is->pictq_windex];
1337
/* alloc or resize hardware picture buffer */
1340
vp->width != is->out_video_filter->inputs[0]->w ||
1341
vp->height != is->out_video_filter->inputs[0]->h) {
1343
vp->width != is->video_st->codec->width ||
1344
vp->height != is->video_st->codec->height) {
1350
/* the allocation must be done in the main thread to avoid
1352
event.type = FF_ALLOC_EVENT;
1353
event.user.data1 = is;
1354
SDL_PushEvent(&event);
1356
/* wait until the picture is allocated */
1357
SDL_LockMutex(is->pictq_mutex);
1358
while (!vp->allocated && !is->videoq.abort_request) {
1359
SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1361
SDL_UnlockMutex(is->pictq_mutex);
1363
if (is->videoq.abort_request)
1367
/* if the frame is not skipped, then display it */
1372
avfilter_unref_buffer(vp->picref);
1373
vp->picref = src_frame->opaque;
1376
/* get a pointer on the bitmap */
1377
SDL_LockYUVOverlay (vp->bmp);
1379
dst_pix_fmt = PIX_FMT_YUV420P;
1380
memset(&pict,0,sizeof(AVPicture));
1381
pict.data[0] = vp->bmp->pixels[0];
1382
pict.data[1] = vp->bmp->pixels[2];
1383
pict.data[2] = vp->bmp->pixels[1];
1385
pict.linesize[0] = vp->bmp->pitches[0];
1386
pict.linesize[1] = vp->bmp->pitches[2];
1387
pict.linesize[2] = vp->bmp->pitches[1];
1390
pict_src.data[0] = src_frame->data[0];
1391
pict_src.data[1] = src_frame->data[1];
1392
pict_src.data[2] = src_frame->data[2];
1394
pict_src.linesize[0] = src_frame->linesize[0];
1395
pict_src.linesize[1] = src_frame->linesize[1];
1396
pict_src.linesize[2] = src_frame->linesize[2];
1398
//FIXME use direct rendering
1399
av_picture_copy(&pict, &pict_src,
1400
vp->pix_fmt, vp->width, vp->height);
1402
sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1403
is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1404
vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1405
dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1406
if (is->img_convert_ctx == NULL) {
1407
fprintf(stderr, "Cannot initialize the conversion context\n");
1410
sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1411
0, vp->height, pict.data, pict.linesize);
1413
/* update the bitmap content */
1414
SDL_UnlockYUVOverlay(vp->bmp);
1419
/* now we can update the picture count */
1420
if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1421
is->pictq_windex = 0;
1422
SDL_LockMutex(is->pictq_mutex);
1423
vp->target_clock= compute_target_time(vp->pts, is);
1426
SDL_UnlockMutex(is->pictq_mutex);
1432
* compute the exact PTS for the picture if it is omitted in the stream
1433
* @param pts1 the dts of the pkt / pts of the frame
1435
static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1437
double frame_delay, pts;
1442
/* update video clock with pts, if present */
1443
is->video_clock = pts;
1445
pts = is->video_clock;
1447
/* update video clock for next frame */
1448
frame_delay = av_q2d(is->video_st->codec->time_base);
1449
/* for MPEG2, the frame can be repeated, so we update the
1450
clock accordingly */
1451
frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1452
is->video_clock += frame_delay;
1454
return queue_picture(is, src_frame, pts, pos);
1457
static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1459
int len1, got_picture, i;
1461
if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1464
if (pkt->data == flush_pkt.data) {
1465
avcodec_flush_buffers(is->video_st->codec);
1467
SDL_LockMutex(is->pictq_mutex);
1468
//Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1469
for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1470
is->pictq[i].target_clock= 0;
1472
while (is->pictq_size && !is->videoq.abort_request) {
1473
SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1475
is->video_current_pos = -1;
1476
SDL_UnlockMutex(is->pictq_mutex);
1478
init_pts_correction(&is->pts_ctx);
1479
is->frame_last_pts = AV_NOPTS_VALUE;
1480
is->frame_last_delay = 0;
1481
is->frame_timer = (double)av_gettime() / 1000000.0;
1482
is->skip_frames = 1;
1483
is->skip_frames_index = 0;
1487
len1 = avcodec_decode_video2(is->video_st->codec,
1488
frame, &got_picture,
1492
if (decoder_reorder_pts == -1) {
1493
*pts = guess_correct_pts(&is->pts_ctx, frame->pkt_pts, frame->pkt_dts);
1494
} else if (decoder_reorder_pts) {
1495
*pts = frame->pkt_pts;
1497
*pts = frame->pkt_dts;
1500
if (*pts == AV_NOPTS_VALUE) {
1504
is->skip_frames_index += 1;
1505
if(is->skip_frames_index >= is->skip_frames){
1506
is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1521
static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1523
AVFilterContext *ctx = codec->opaque;
1524
AVFilterBufferRef *ref;
1525
int perms = AV_PERM_WRITE;
1526
int i, w, h, stride[4];
1530
if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1531
perms |= AV_PERM_NEG_LINESIZES;
1533
if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1534
if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1535
if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1536
if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1538
if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1542
avcodec_align_dimensions2(codec, &w, &h, stride);
1543
edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1547
if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1550
pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1+1;
1551
ref->video->w = codec->width;
1552
ref->video->h = codec->height;
1553
for(i = 0; i < 4; i ++) {
1554
unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1555
unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1558
ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1560
pic->data[i] = ref->data[i];
1561
pic->linesize[i] = ref->linesize[i];
1565
pic->type = FF_BUFFER_TYPE_USER;
1566
pic->reordered_opaque = codec->reordered_opaque;
1567
if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1568
else pic->pkt_pts = AV_NOPTS_VALUE;
1572
static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1574
memset(pic->data, 0, sizeof(pic->data));
1575
avfilter_unref_buffer(pic->opaque);
1578
static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1580
AVFilterBufferRef *ref = pic->opaque;
1582
if (pic->data[0] == NULL) {
1583
pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1584
return codec->get_buffer(codec, pic);
1587
if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1588
(codec->pix_fmt != ref->format)) {
1589
av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1593
pic->reordered_opaque = codec->reordered_opaque;
1594
if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1595
else pic->pkt_pts = AV_NOPTS_VALUE;
1599
static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1601
FilterPriv *priv = ctx->priv;
1602
AVCodecContext *codec;
1603
if(!opaque) return -1;
1606
codec = priv->is->video_st->codec;
1607
codec->opaque = ctx;
1608
if(codec->codec->capabilities & CODEC_CAP_DR1) {
1610
codec->get_buffer = input_get_buffer;
1611
codec->release_buffer = input_release_buffer;
1612
codec->reget_buffer = input_reget_buffer;
1613
codec->thread_safe_callbacks = 1;
1616
priv->frame = avcodec_alloc_frame();
1621
static void input_uninit(AVFilterContext *ctx)
1623
FilterPriv *priv = ctx->priv;
1624
av_free(priv->frame);
1627
static int input_request_frame(AVFilterLink *link)
1629
FilterPriv *priv = link->src->priv;
1630
AVFilterBufferRef *picref;
1635
while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1636
av_free_packet(&pkt);
1641
picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1643
picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1644
av_image_copy(picref->data, picref->linesize,
1645
priv->frame->data, priv->frame->linesize,
1646
picref->format, link->w, link->h);
1648
av_free_packet(&pkt);
1651
picref->pos = pkt.pos;
1652
picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1653
avfilter_start_frame(link, picref);
1654
avfilter_draw_slice(link, 0, link->h, 1);
1655
avfilter_end_frame(link);
1660
static int input_query_formats(AVFilterContext *ctx)
1662
FilterPriv *priv = ctx->priv;
1663
enum PixelFormat pix_fmts[] = {
1664
priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1667
avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1671
static int input_config_props(AVFilterLink *link)
1673
FilterPriv *priv = link->src->priv;
1674
AVCodecContext *c = priv->is->video_st->codec;
1677
link->h = c->height;
1678
link->time_base = priv->is->video_st->time_base;
1683
static AVFilter input_filter =
1685
.name = "ffplay_input",
1687
.priv_size = sizeof(FilterPriv),
1690
.uninit = input_uninit,
1692
.query_formats = input_query_formats,
1694
.inputs = (AVFilterPad[]) {{ .name = NULL }},
1695
.outputs = (AVFilterPad[]) {{ .name = "default",
1696
.type = AVMEDIA_TYPE_VIDEO,
1697
.request_frame = input_request_frame,
1698
.config_props = input_config_props, },
1702
static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1704
char sws_flags_str[128];
1706
FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1707
AVFilterContext *filt_src = NULL, *filt_out = NULL;
1708
snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1709
graph->scale_sws_opts = av_strdup(sws_flags_str);
1711
if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1712
NULL, is, graph)) < 0)
1714
if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1715
NULL, &ffsink_ctx, graph)) < 0)
1719
AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1720
AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
1722
outputs->name = av_strdup("in");
1723
outputs->filter_ctx = filt_src;
1724
outputs->pad_idx = 0;
1725
outputs->next = NULL;
1727
inputs->name = av_strdup("out");
1728
inputs->filter_ctx = filt_out;
1729
inputs->pad_idx = 0;
1730
inputs->next = NULL;
1732
if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1734
av_freep(&vfilters);
1736
if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1740
if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1743
is->out_video_filter = filt_out;
1748
#endif /* CONFIG_AVFILTER */
1750
static int video_thread(void *arg)
1752
VideoState *is = arg;
1753
AVFrame *frame= avcodec_alloc_frame();
1759
AVFilterGraph *graph = avfilter_graph_alloc();
1760
AVFilterContext *filt_out = NULL;
1763
if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1765
filt_out = is->out_video_filter;
1769
#if !CONFIG_AVFILTER
1772
AVFilterBufferRef *picref;
1775
while (is->paused && !is->videoq.abort_request)
1778
ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1780
pts_int = picref->pts;
1782
frame->opaque = picref;
1785
if (av_cmp_q(tb, is->video_st->time_base)) {
1786
av_unused int64_t pts1 = pts_int;
1787
pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1788
av_dlog(NULL, "video_thread(): "
1789
"tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1790
tb.num, tb.den, pts1,
1791
is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1794
ret = get_video_frame(is, frame, &pts_int, &pkt);
1797
if (ret < 0) goto the_end;
1802
pts = pts_int*av_q2d(is->video_st->time_base);
1805
ret = output_picture2(is, frame, pts, pos);
1807
ret = output_picture2(is, frame, pts, pkt.pos);
1808
av_free_packet(&pkt);
1815
stream_pause(cur_stream);
1819
avfilter_graph_free(&graph);
1825
static int subtitle_thread(void *arg)
1827
VideoState *is = arg;
1829
AVPacket pkt1, *pkt = &pkt1;
1830
int len1, got_subtitle;
1833
int r, g, b, y, u, v, a;
1836
while (is->paused && !is->subtitleq.abort_request) {
1839
if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1842
if(pkt->data == flush_pkt.data){
1843
avcodec_flush_buffers(is->subtitle_st->codec);
1846
SDL_LockMutex(is->subpq_mutex);
1847
while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1848
!is->subtitleq.abort_request) {
1849
SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1851
SDL_UnlockMutex(is->subpq_mutex);
1853
if (is->subtitleq.abort_request)
1856
sp = &is->subpq[is->subpq_windex];
1858
/* NOTE: ipts is the PTS of the _first_ picture beginning in
1859
this packet, if any */
1861
if (pkt->pts != AV_NOPTS_VALUE)
1862
pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1864
len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1865
&sp->sub, &got_subtitle,
1867
if (got_subtitle && sp->sub.format == 0) {
1870
for (i = 0; i < sp->sub.num_rects; i++)
1872
for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1874
RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1875
y = RGB_TO_Y_CCIR(r, g, b);
1876
u = RGB_TO_U_CCIR(r, g, b, 0);
1877
v = RGB_TO_V_CCIR(r, g, b, 0);
1878
YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1882
/* now we can update the picture count */
1883
if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1884
is->subpq_windex = 0;
1885
SDL_LockMutex(is->subpq_mutex);
1887
SDL_UnlockMutex(is->subpq_mutex);
1889
av_free_packet(pkt);
1895
/* copy samples for viewing in editor window */
1896
static void update_sample_display(VideoState *is, short *samples, int samples_size)
1898
int size, len, channels;
1900
channels = is->audio_st->codec->channels;
1902
size = samples_size / sizeof(short);
1904
len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1907
memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1909
is->sample_array_index += len;
1910
if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1911
is->sample_array_index = 0;
1916
/* return the new audio buffer size (samples can be added or deleted
1917
to get better sync if video or external master clock) */
1918
static int synchronize_audio(VideoState *is, short *samples,
1919
int samples_size1, double pts)
1921
int n, samples_size;
1924
n = 2 * is->audio_st->codec->channels;
1925
samples_size = samples_size1;
1927
/* if not master, then we try to remove or add samples to correct the clock */
1928
if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1929
is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1930
double diff, avg_diff;
1931
int wanted_size, min_size, max_size, nb_samples;
1933
ref_clock = get_master_clock(is);
1934
diff = get_audio_clock(is) - ref_clock;
1936
if (diff < AV_NOSYNC_THRESHOLD) {
1937
is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1938
if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1939
/* not enough measures to have a correct estimate */
1940
is->audio_diff_avg_count++;
1942
/* estimate the A-V difference */
1943
avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1945
if (fabs(avg_diff) >= is->audio_diff_threshold) {
1946
wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1947
nb_samples = samples_size / n;
1949
min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1950
max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1951
if (wanted_size < min_size)
1952
wanted_size = min_size;
1953
else if (wanted_size > max_size)
1954
wanted_size = max_size;
1956
/* add or remove samples to correction the synchro */
1957
if (wanted_size < samples_size) {
1958
/* remove samples */
1959
samples_size = wanted_size;
1960
} else if (wanted_size > samples_size) {
1961
uint8_t *samples_end, *q;
1965
nb = (samples_size - wanted_size);
1966
samples_end = (uint8_t *)samples + samples_size - n;
1967
q = samples_end + n;
1969
memcpy(q, samples_end, n);
1973
samples_size = wanted_size;
1976
av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1977
diff, avg_diff, samples_size - samples_size1,
1978
is->audio_clock, is->video_clock, is->audio_diff_threshold);
1981
/* too big difference : may be initial PTS errors, so
1983
is->audio_diff_avg_count = 0;
1984
is->audio_diff_cum = 0;
1988
return samples_size;
1991
/* decode one audio frame and returns its uncompressed size */
1992
static int audio_decode_frame(VideoState *is, double *pts_ptr)
1994
AVPacket *pkt_temp = &is->audio_pkt_temp;
1995
AVPacket *pkt = &is->audio_pkt;
1996
AVCodecContext *dec= is->audio_st->codec;
1997
int n, len1, data_size;
2001
/* NOTE: the audio packet can contain several frames */
2002
while (pkt_temp->size > 0) {
2003
data_size = sizeof(is->audio_buf1);
2004
len1 = avcodec_decode_audio3(dec,
2005
(int16_t *)is->audio_buf1, &data_size,
2008
/* if error, we skip the frame */
2013
pkt_temp->data += len1;
2014
pkt_temp->size -= len1;
2018
if (dec->sample_fmt != is->audio_src_fmt) {
2019
if (is->reformat_ctx)
2020
av_audio_convert_free(is->reformat_ctx);
2021
is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2022
dec->sample_fmt, 1, NULL, 0);
2023
if (!is->reformat_ctx) {
2024
fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2025
av_get_sample_fmt_name(dec->sample_fmt),
2026
av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2029
is->audio_src_fmt= dec->sample_fmt;
2032
if (is->reformat_ctx) {
2033
const void *ibuf[6]= {is->audio_buf1};
2034
void *obuf[6]= {is->audio_buf2};
2035
int istride[6]= {av_get_bytes_per_sample(dec->sample_fmt)};
2036
int ostride[6]= {2};
2037
int len= data_size/istride[0];
2038
if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2039
printf("av_audio_convert() failed\n");
2042
is->audio_buf= is->audio_buf2;
2043
/* FIXME: existing code assume that data_size equals framesize*channels*2
2044
remove this legacy cruft */
2047
is->audio_buf= is->audio_buf1;
2050
/* if no pts, then compute it */
2051
pts = is->audio_clock;
2053
n = 2 * dec->channels;
2054
is->audio_clock += (double)data_size /
2055
(double)(n * dec->sample_rate);
2058
static double last_clock;
2059
printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2060
is->audio_clock - last_clock,
2061
is->audio_clock, pts);
2062
last_clock = is->audio_clock;
2068
/* free the current packet */
2070
av_free_packet(pkt);
2072
if (is->paused || is->audioq.abort_request) {
2076
/* read next packet */
2077
if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2079
if(pkt->data == flush_pkt.data){
2080
avcodec_flush_buffers(dec);
2084
pkt_temp->data = pkt->data;
2085
pkt_temp->size = pkt->size;
2087
/* if update the audio clock with the pts */
2088
if (pkt->pts != AV_NOPTS_VALUE) {
2089
is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2094
/* prepare a new audio buffer */
2095
static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2097
VideoState *is = opaque;
2098
int audio_size, len1;
2101
audio_callback_time = av_gettime();
2104
if (is->audio_buf_index >= is->audio_buf_size) {
2105
audio_size = audio_decode_frame(is, &pts);
2106
if (audio_size < 0) {
2107
/* if error, just output silence */
2108
is->audio_buf = is->audio_buf1;
2109
is->audio_buf_size = 1024;
2110
memset(is->audio_buf, 0, is->audio_buf_size);
2113
update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2114
audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2116
is->audio_buf_size = audio_size;
2118
is->audio_buf_index = 0;
2120
len1 = is->audio_buf_size - is->audio_buf_index;
2123
memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2126
is->audio_buf_index += len1;
2130
/* open a given stream. Return 0 if OK */
2131
static int stream_component_open(VideoState *is, int stream_index)
2133
AVFormatContext *ic = is->ic;
2134
AVCodecContext *avctx;
2136
SDL_AudioSpec wanted_spec, spec;
2138
if (stream_index < 0 || stream_index >= ic->nb_streams)
2140
avctx = ic->streams[stream_index]->codec;
2142
/* prepare audio output */
2143
if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2144
if (avctx->channels > 0) {
2145
avctx->request_channels = FFMIN(2, avctx->channels);
2147
avctx->request_channels = 2;
2151
codec = avcodec_find_decoder(avctx->codec_id);
2152
avctx->debug_mv = debug_mv;
2153
avctx->debug = debug;
2154
avctx->workaround_bugs = workaround_bugs;
2155
avctx->lowres = lowres;
2156
if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2157
avctx->idct_algo= idct;
2158
if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2159
avctx->skip_frame= skip_frame;
2160
avctx->skip_idct= skip_idct;
2161
avctx->skip_loop_filter= skip_loop_filter;
2162
avctx->error_recognition= error_recognition;
2163
avctx->error_concealment= error_concealment;
2164
avctx->thread_count= thread_count;
2166
set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2169
avcodec_open(avctx, codec) < 0)
2172
/* prepare audio output */
2173
if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2174
wanted_spec.freq = avctx->sample_rate;
2175
wanted_spec.format = AUDIO_S16SYS;
2176
wanted_spec.channels = avctx->channels;
2177
wanted_spec.silence = 0;
2178
wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2179
wanted_spec.callback = sdl_audio_callback;
2180
wanted_spec.userdata = is;
2181
if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2182
fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2185
is->audio_hw_buf_size = spec.size;
2186
is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2189
ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2190
switch(avctx->codec_type) {
2191
case AVMEDIA_TYPE_AUDIO:
2192
is->audio_stream = stream_index;
2193
is->audio_st = ic->streams[stream_index];
2194
is->audio_buf_size = 0;
2195
is->audio_buf_index = 0;
2197
/* init averaging filter */
2198
is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2199
is->audio_diff_avg_count = 0;
2200
/* since we do not have a precise anough audio fifo fullness,
2201
we correct audio sync only if larger than this threshold */
2202
is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2204
memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2205
packet_queue_init(&is->audioq);
2208
case AVMEDIA_TYPE_VIDEO:
2209
is->video_stream = stream_index;
2210
is->video_st = ic->streams[stream_index];
2212
packet_queue_init(&is->videoq);
2213
is->video_tid = SDL_CreateThread(video_thread, is);
2215
case AVMEDIA_TYPE_SUBTITLE:
2216
is->subtitle_stream = stream_index;
2217
is->subtitle_st = ic->streams[stream_index];
2218
packet_queue_init(&is->subtitleq);
2220
is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2228
static void stream_component_close(VideoState *is, int stream_index)
2230
AVFormatContext *ic = is->ic;
2231
AVCodecContext *avctx;
2233
if (stream_index < 0 || stream_index >= ic->nb_streams)
2235
avctx = ic->streams[stream_index]->codec;
2237
switch(avctx->codec_type) {
2238
case AVMEDIA_TYPE_AUDIO:
2239
packet_queue_abort(&is->audioq);
2243
packet_queue_end(&is->audioq);
2244
if (is->reformat_ctx)
2245
av_audio_convert_free(is->reformat_ctx);
2246
is->reformat_ctx = NULL;
2248
case AVMEDIA_TYPE_VIDEO:
2249
packet_queue_abort(&is->videoq);
2251
/* note: we also signal this mutex to make sure we deblock the
2252
video thread in all cases */
2253
SDL_LockMutex(is->pictq_mutex);
2254
SDL_CondSignal(is->pictq_cond);
2255
SDL_UnlockMutex(is->pictq_mutex);
2257
SDL_WaitThread(is->video_tid, NULL);
2259
packet_queue_end(&is->videoq);
2261
case AVMEDIA_TYPE_SUBTITLE:
2262
packet_queue_abort(&is->subtitleq);
2264
/* note: we also signal this mutex to make sure we deblock the
2265
video thread in all cases */
2266
SDL_LockMutex(is->subpq_mutex);
2267
is->subtitle_stream_changed = 1;
2269
SDL_CondSignal(is->subpq_cond);
2270
SDL_UnlockMutex(is->subpq_mutex);
2272
SDL_WaitThread(is->subtitle_tid, NULL);
2274
packet_queue_end(&is->subtitleq);
2280
ic->streams[stream_index]->discard = AVDISCARD_ALL;
2281
avcodec_close(avctx);
2282
switch(avctx->codec_type) {
2283
case AVMEDIA_TYPE_AUDIO:
2284
is->audio_st = NULL;
2285
is->audio_stream = -1;
2287
case AVMEDIA_TYPE_VIDEO:
2288
is->video_st = NULL;
2289
is->video_stream = -1;
2291
case AVMEDIA_TYPE_SUBTITLE:
2292
is->subtitle_st = NULL;
2293
is->subtitle_stream = -1;
2300
/* since we have only one decoding thread, we can use a global
2301
variable instead of a thread local variable */
2302
static VideoState *global_video_state;
2304
static int decode_interrupt_cb(void)
2306
return (global_video_state && global_video_state->abort_request);
2309
/* this thread gets the stream from the disk or the network */
2310
static int decode_thread(void *arg)
2312
VideoState *is = arg;
2313
AVFormatContext *ic = NULL;
2315
int st_index[AVMEDIA_TYPE_NB];
2316
AVPacket pkt1, *pkt = &pkt1;
2318
int pkt_in_play_range = 0;
2319
AVDictionaryEntry *t;
2321
memset(st_index, -1, sizeof(st_index));
2322
is->video_stream = -1;
2323
is->audio_stream = -1;
2324
is->subtitle_stream = -1;
2326
global_video_state = is;
2327
avio_set_interrupt_cb(decode_interrupt_cb);
2329
err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2331
print_error(is->filename, err);
2335
if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2336
av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2337
ret = AVERROR_OPTION_NOT_FOUND;
2343
ic->flags |= AVFMT_FLAG_GENPTS;
2345
/* Set AVCodecContext options so they will be seen by av_find_stream_info() */
2346
for (i = 0; i < ic->nb_streams; i++) {
2347
AVCodecContext *dec = ic->streams[i]->codec;
2348
switch (dec->codec_type) {
2349
case AVMEDIA_TYPE_AUDIO:
2350
set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO],
2351
AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
2354
case AVMEDIA_TYPE_VIDEO:
2355
set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO],
2356
AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
2362
err = av_find_stream_info(ic);
2364
fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2369
ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2372
seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2374
/* if seeking requested, we execute it */
2375
if (start_time != AV_NOPTS_VALUE) {
2378
timestamp = start_time;
2379
/* add the stream start time */
2380
if (ic->start_time != AV_NOPTS_VALUE)
2381
timestamp += ic->start_time;
2382
ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2384
fprintf(stderr, "%s: could not seek to position %0.3f\n",
2385
is->filename, (double)timestamp / AV_TIME_BASE);
2389
for (i = 0; i < ic->nb_streams; i++)
2390
ic->streams[i]->discard = AVDISCARD_ALL;
2392
st_index[AVMEDIA_TYPE_VIDEO] =
2393
av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2394
wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2396
st_index[AVMEDIA_TYPE_AUDIO] =
2397
av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2398
wanted_stream[AVMEDIA_TYPE_AUDIO],
2399
st_index[AVMEDIA_TYPE_VIDEO],
2402
st_index[AVMEDIA_TYPE_SUBTITLE] =
2403
av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2404
wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2405
(st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2406
st_index[AVMEDIA_TYPE_AUDIO] :
2407
st_index[AVMEDIA_TYPE_VIDEO]),
2410
av_dump_format(ic, 0, is->filename, 0);
2413
/* open the streams */
2414
if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2415
stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2419
if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2420
ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2422
is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2424
if (!display_disable)
2428
if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2429
stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2432
if (is->video_stream < 0 && is->audio_stream < 0) {
2433
fprintf(stderr, "%s: could not open codecs\n", is->filename);
2439
if (is->abort_request)
2441
if (is->paused != is->last_paused) {
2442
is->last_paused = is->paused;
2444
is->read_pause_return= av_read_pause(ic);
2448
#if CONFIG_RTSP_DEMUXER
2449
if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2450
/* wait 10 ms to avoid trying to get another packet */
2457
int64_t seek_target= is->seek_pos;
2458
int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2459
int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2460
//FIXME the +-2 is due to rounding being not done in the correct direction in generation
2461
// of the seek_pos/seek_rel variables
2463
ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2465
fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2467
if (is->audio_stream >= 0) {
2468
packet_queue_flush(&is->audioq);
2469
packet_queue_put(&is->audioq, &flush_pkt);
2471
if (is->subtitle_stream >= 0) {
2472
packet_queue_flush(&is->subtitleq);
2473
packet_queue_put(&is->subtitleq, &flush_pkt);
2475
if (is->video_stream >= 0) {
2476
packet_queue_flush(&is->videoq);
2477
packet_queue_put(&is->videoq, &flush_pkt);
2484
/* if the queue are full, no need to read more */
2485
if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2486
|| ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2487
&& (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2488
&& (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2494
if(is->video_stream >= 0){
2495
av_init_packet(pkt);
2498
pkt->stream_index= is->video_stream;
2499
packet_queue_put(&is->videoq, pkt);
2502
if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2503
if(loop!=1 && (!loop || --loop)){
2504
stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2512
ret = av_read_frame(ic, pkt);
2514
if (ret == AVERROR_EOF || (ic->pb && ic->pb->eof_reached))
2516
if (ic->pb && ic->pb->error)
2518
SDL_Delay(100); /* wait for user event */
2521
/* check if packet is in play range specified by user, then queue, otherwise discard */
2522
pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2523
(pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2524
av_q2d(ic->streams[pkt->stream_index]->time_base) -
2525
(double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2526
<= ((double)duration/1000000);
2527
if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2528
packet_queue_put(&is->audioq, pkt);
2529
} else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2530
packet_queue_put(&is->videoq, pkt);
2531
} else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2532
packet_queue_put(&is->subtitleq, pkt);
2534
av_free_packet(pkt);
2537
/* wait until the end */
2538
while (!is->abort_request) {
2544
/* disable interrupting */
2545
global_video_state = NULL;
2547
/* close each stream */
2548
if (is->audio_stream >= 0)
2549
stream_component_close(is, is->audio_stream);
2550
if (is->video_stream >= 0)
2551
stream_component_close(is, is->video_stream);
2552
if (is->subtitle_stream >= 0)
2553
stream_component_close(is, is->subtitle_stream);
2555
av_close_input_file(is->ic);
2556
is->ic = NULL; /* safety */
2558
avio_set_interrupt_cb(NULL);
2563
event.type = FF_QUIT_EVENT;
2564
event.user.data1 = is;
2565
SDL_PushEvent(&event);
2570
static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2574
is = av_mallocz(sizeof(VideoState));
2577
av_strlcpy(is->filename, filename, sizeof(is->filename));
2578
is->iformat = iformat;
2582
/* start video display */
2583
is->pictq_mutex = SDL_CreateMutex();
2584
is->pictq_cond = SDL_CreateCond();
2586
is->subpq_mutex = SDL_CreateMutex();
2587
is->subpq_cond = SDL_CreateCond();
2589
is->av_sync_type = av_sync_type;
2590
is->parse_tid = SDL_CreateThread(decode_thread, is);
2591
if (!is->parse_tid) {
2598
static void stream_cycle_channel(VideoState *is, int codec_type)
2600
AVFormatContext *ic = is->ic;
2601
int start_index, stream_index;
2604
if (codec_type == AVMEDIA_TYPE_VIDEO)
2605
start_index = is->video_stream;
2606
else if (codec_type == AVMEDIA_TYPE_AUDIO)
2607
start_index = is->audio_stream;
2609
start_index = is->subtitle_stream;
2610
if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2612
stream_index = start_index;
2614
if (++stream_index >= is->ic->nb_streams)
2616
if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2623
if (stream_index == start_index)
2625
st = ic->streams[stream_index];
2626
if (st->codec->codec_type == codec_type) {
2627
/* check that parameters are OK */
2628
switch(codec_type) {
2629
case AVMEDIA_TYPE_AUDIO:
2630
if (st->codec->sample_rate != 0 &&
2631
st->codec->channels != 0)
2634
case AVMEDIA_TYPE_VIDEO:
2635
case AVMEDIA_TYPE_SUBTITLE:
2643
stream_component_close(is, start_index);
2644
stream_component_open(is, stream_index);
2648
static void toggle_full_screen(void)
2650
is_full_screen = !is_full_screen;
2651
video_open(cur_stream);
2654
static void toggle_pause(void)
2657
stream_pause(cur_stream);
2661
static void step_to_next_frame(void)
2664
/* if the stream is paused unpause it, then step */
2665
if (cur_stream->paused)
2666
stream_pause(cur_stream);
2671
static void toggle_audio_display(void)
2674
int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2675
cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2676
fill_rectangle(screen,
2677
cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2679
SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2683
/* handle an event sent by the GUI */
2684
static void event_loop(void)
2687
double incr, pos, frac;
2691
SDL_WaitEvent(&event);
2692
switch(event.type) {
2694
if (exit_on_keydown) {
2698
switch(event.key.keysym.sym) {
2704
toggle_full_screen();
2710
case SDLK_s: //S: Step to next frame
2711
step_to_next_frame();
2715
stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2719
stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2723
stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2726
toggle_audio_display();
2741
if (seek_by_bytes) {
2742
if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2743
pos= cur_stream->video_current_pos;
2744
}else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2745
pos= cur_stream->audio_pkt.pos;
2747
pos = avio_tell(cur_stream->ic->pb);
2748
if (cur_stream->ic->bit_rate)
2749
incr *= cur_stream->ic->bit_rate / 8.0;
2753
stream_seek(cur_stream, pos, incr, 1);
2755
pos = get_master_clock(cur_stream);
2757
stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2765
case SDL_MOUSEBUTTONDOWN:
2766
if (exit_on_mousedown) {
2770
case SDL_MOUSEMOTION:
2771
if(event.type ==SDL_MOUSEBUTTONDOWN){
2774
if(event.motion.state != SDL_PRESSED)
2779
if(seek_by_bytes || cur_stream->ic->duration<=0){
2780
uint64_t size= avio_size(cur_stream->ic->pb);
2781
stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2785
int tns, thh, tmm, tss;
2786
tns = cur_stream->ic->duration/1000000LL;
2788
tmm = (tns%3600)/60;
2790
frac = x/cur_stream->width;
2795
fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2796
hh, mm, ss, thh, tmm, tss);
2797
ts = frac*cur_stream->ic->duration;
2798
if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2799
ts += cur_stream->ic->start_time;
2800
stream_seek(cur_stream, ts, 0, 0);
2804
case SDL_VIDEORESIZE:
2806
screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2807
SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2808
screen_width = cur_stream->width = event.resize.w;
2809
screen_height= cur_stream->height= event.resize.h;
2816
case FF_ALLOC_EVENT:
2817
video_open(event.user.data1);
2818
alloc_picture(event.user.data1);
2820
case FF_REFRESH_EVENT:
2821
video_refresh_timer(event.user.data1);
2822
cur_stream->refresh=0;
2830
static int opt_frame_size(const char *opt, const char *arg)
2832
if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2833
fprintf(stderr, "Incorrect frame size\n");
2834
return AVERROR(EINVAL);
2836
if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2837
fprintf(stderr, "Frame size must be a multiple of 2\n");
2838
return AVERROR(EINVAL);
2843
static int opt_width(const char *opt, const char *arg)
2845
screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2849
static int opt_height(const char *opt, const char *arg)
2851
screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2855
static int opt_format(const char *opt, const char *arg)
2857
file_iformat = av_find_input_format(arg);
2858
if (!file_iformat) {
2859
fprintf(stderr, "Unknown input format: %s\n", arg);
2860
return AVERROR(EINVAL);
2865
static int opt_frame_pix_fmt(const char *opt, const char *arg)
2867
frame_pix_fmt = av_get_pix_fmt(arg);
2871
static int opt_sync(const char *opt, const char *arg)
2873
if (!strcmp(arg, "audio"))
2874
av_sync_type = AV_SYNC_AUDIO_MASTER;
2875
else if (!strcmp(arg, "video"))
2876
av_sync_type = AV_SYNC_VIDEO_MASTER;
2877
else if (!strcmp(arg, "ext"))
2878
av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2880
fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2886
static int opt_seek(const char *opt, const char *arg)
2888
start_time = parse_time_or_die(opt, arg, 1);
2892
static int opt_duration(const char *opt, const char *arg)
2894
duration = parse_time_or_die(opt, arg, 1);
2898
static int opt_debug(const char *opt, const char *arg)
2900
av_log_set_level(99);
2901
debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2905
static int opt_vismv(const char *opt, const char *arg)
2907
debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2911
static int opt_thread_count(const char *opt, const char *arg)
2913
thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2915
fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2920
static const OptionDef options[] = {
2921
#include "cmdutils_common_opts.h"
2922
{ "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
2923
{ "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
2924
{ "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2925
{ "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2926
{ "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2927
{ "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2928
{ "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
2929
{ "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
2930
{ "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
2931
{ "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2932
{ "t", HAS_ARG, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
2933
{ "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
2934
{ "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2935
{ "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2936
{ "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2937
{ "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2938
{ "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2939
{ "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2940
{ "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2941
{ "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2942
{ "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2943
{ "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2944
{ "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2945
{ "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2946
{ "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2947
{ "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2948
{ "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2949
{ "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
2950
{ "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2951
{ "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2952
{ "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2953
{ "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
2954
{ "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
2955
{ "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
2956
{ "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
2957
{ "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
2958
{ "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
2960
{ "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
2962
{ "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
2963
{ "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
2964
{ "i", 0, {NULL}, "ffmpeg compatibility dummy option", ""},
2968
static void show_usage(void)
2970
printf("Simple media player\n");
2971
printf("usage: ffplay [options] input_file\n");
2975
static void show_help(void)
2977
av_log_set_callback(log_callback_help);
2979
show_help_options(options, "Main options:\n",
2981
show_help_options(options, "\nAdvanced options:\n",
2982
OPT_EXPERT, OPT_EXPERT);
2984
av_opt_show2(avcodec_opts[0], NULL,
2985
AV_OPT_FLAG_DECODING_PARAM, 0);
2987
av_opt_show2(avformat_opts, NULL,
2988
AV_OPT_FLAG_DECODING_PARAM, 0);
2989
#if !CONFIG_AVFILTER
2991
av_opt_show2(sws_opts, NULL,
2992
AV_OPT_FLAG_ENCODING_PARAM, 0);
2994
printf("\nWhile playing:\n"
2996
"f toggle full screen\n"
2998
"a cycle audio channel\n"
2999
"v cycle video channel\n"
3000
"t cycle subtitle channel\n"
3001
"w show audio waves\n"
3002
"s activate frame-step mode\n"
3003
"left/right seek backward/forward 10 seconds\n"
3004
"down/up seek backward/forward 1 minute\n"
3005
"mouse click seek to percentage in file corresponding to fraction of width\n"
3009
static void opt_input_file(const char *filename)
3011
if (input_filename) {
3012
fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3013
filename, input_filename);
3016
if (!strcmp(filename, "-"))
3018
input_filename = filename;
3021
/* Called from the main */
3022
int main(int argc, char **argv)
3026
av_log_set_flags(AV_LOG_SKIP_REPEATED);
3028
/* register all codecs, demux and protocols */
3029
avcodec_register_all();
3031
avdevice_register_all();
3034
avfilter_register_all();
3042
parse_options(argc, argv, options, opt_input_file);
3044
if (!input_filename) {
3046
fprintf(stderr, "An input file must be specified\n");
3047
fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3051
if (display_disable) {
3054
flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3055
#if !defined(__MINGW32__) && !defined(__APPLE__)
3056
flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3058
if (SDL_Init (flags)) {
3059
fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3063
if (!display_disable) {
3064
#if HAVE_SDL_VIDEO_SIZE
3065
const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3066
fs_screen_width = vi->current_w;
3067
fs_screen_height = vi->current_h;
3071
SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3072
SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3073
SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3075
av_init_packet(&flush_pkt);
3076
flush_pkt.data= "FLUSH";
3078
cur_stream = stream_open(input_filename, file_iformat);
added
removed
ffmpeg/ffplay.c
