2 * avplay : Simple Media Player based on the Libav libraries
3 * Copyright (c) 2003 Fabrice Bellard
5 * This file is part of Libav.
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavutil/avstring.h"
27 #include "libavutil/colorspace.h"
28 #include "libavutil/mathematics.h"
29 #include "libavutil/pixdesc.h"
30 #include "libavutil/imgutils.h"
31 #include "libavutil/dict.h"
32 #include "libavutil/parseutils.h"
33 #include "libavutil/samplefmt.h"
34 #include "libavutil/time.h"
35 #include "libavformat/avformat.h"
36 #include "libavdevice/avdevice.h"
37 #include "libswscale/swscale.h"
38 #include "libavresample/avresample.h"
39 #include "libavutil/opt.h"
40 #include "libavcodec/avfft.h"
43 # include "libavfilter/avfilter.h"
44 # include "libavfilter/avfiltergraph.h"
45 # include "libavfilter/buffersink.h"
46 # include "libavfilter/buffersrc.h"
52 #include <SDL_thread.h>
55 #undef main /* We don't want SDL to override our main() */
60 const char program_name
[] = "avplay";
61 const int program_birth_year
= 2003;
63 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
64 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
67 /* SDL audio buffer size, in samples. Should be small to have precise
68 A/V sync as SDL does not have hardware buffer fullness info. */
69 #define SDL_AUDIO_BUFFER_SIZE 1024
71 /* no AV sync correction is done if below the AV sync threshold */
72 #define AV_SYNC_THRESHOLD 0.01
73 /* no AV correction is done if too big error */
74 #define AV_NOSYNC_THRESHOLD 10.0
76 #define FRAME_SKIP_FACTOR 0.05
78 /* maximum audio speed change to get correct sync */
79 #define SAMPLE_CORRECTION_PERCENT_MAX 10
81 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
82 #define AUDIO_DIFF_AVG_NB 20
84 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
85 #define SAMPLE_ARRAY_SIZE (2 * 65536)
87 static int64_t sws_flags
= SWS_BICUBIC
;
89 typedef struct PacketQueue
{
90 AVPacketList
*first_pkt
, *last_pkt
;
98 #define VIDEO_PICTURE_QUEUE_SIZE 2
99 #define SUBPICTURE_QUEUE_SIZE 4
101 typedef struct VideoPicture
{
102 double pts
; // presentation timestamp for this picture
103 double target_clock
; // av_gettime() time at which this should be displayed ideally
104 int64_t pos
; // byte position in file
106 int width
, height
; /* source height & width */
109 enum AVPixelFormat pix_fmt
;
114 typedef struct SubPicture
{
115 double pts
; /* presentation time stamp for this picture */
120 AV_SYNC_AUDIO_MASTER
, /* default choice */
121 AV_SYNC_VIDEO_MASTER
,
122 AV_SYNC_EXTERNAL_CLOCK
, /* synchronize to an external clock */
125 typedef struct VideoState
{
126 SDL_Thread
*parse_tid
;
127 SDL_Thread
*video_tid
;
128 SDL_Thread
*refresh_tid
;
129 AVInputFormat
*iformat
;
138 int read_pause_return
;
144 double external_clock
; /* external clock base */
145 int64_t external_clock_time
;
148 double audio_diff_cum
; /* used for AV difference average computation */
149 double audio_diff_avg_coef
;
150 double audio_diff_threshold
;
151 int audio_diff_avg_count
;
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 PacketQueue subtitleq
;
186 SubPicture subpq
[SUBPICTURE_QUEUE_SIZE
];
187 int subpq_size
, subpq_rindex
, subpq_windex
;
188 SDL_mutex
*subpq_mutex
;
189 SDL_cond
*subpq_cond
;
192 double frame_last_pts
;
193 double frame_last_delay
;
194 double video_clock
; // pts of last decoded frame / predicted pts of next decoded frame
198 double video_current_pts
; // current displayed pts (different from video_clock if frame fifos are used)
199 double video_current_pts_drift
; // video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
200 int64_t video_current_pos
; // current displayed file pos
201 VideoPicture pictq
[VIDEO_PICTURE_QUEUE_SIZE
];
202 int pictq_size
, pictq_rindex
, pictq_windex
;
203 SDL_mutex
*pictq_mutex
;
204 SDL_cond
*pictq_cond
;
206 struct SwsContext
*img_convert_ctx
;
209 // QETimer *video_timer;
211 int width
, height
, xleft
, ytop
;
213 PtsCorrectionContext pts_ctx
;
216 AVFilterContext
*in_video_filter
; // the first filter in the video chain
217 AVFilterContext
*out_video_filter
; // the last filter in the video chain
221 float skip_frames_index
;
225 /* options specified by the user */
226 static AVInputFormat
*file_iformat
;
227 static const char *input_filename
;
228 static const char *window_title
;
229 static int fs_screen_width
;
230 static int fs_screen_height
;
231 static int screen_width
= 0;
232 static int screen_height
= 0;
233 static int audio_disable
;
234 static int video_disable
;
235 static int wanted_stream
[AVMEDIA_TYPE_NB
] = {
236 [AVMEDIA_TYPE_AUDIO
] = -1,
237 [AVMEDIA_TYPE_VIDEO
] = -1,
238 [AVMEDIA_TYPE_SUBTITLE
] = -1,
240 static int seek_by_bytes
= -1;
241 static int display_disable
;
242 static int show_status
= 1;
243 static int av_sync_type
= AV_SYNC_AUDIO_MASTER
;
244 static int64_t start_time
= AV_NOPTS_VALUE
;
245 static int64_t duration
= AV_NOPTS_VALUE
;
246 static int debug
= 0;
247 static int debug_mv
= 0;
249 static int workaround_bugs
= 1;
251 static int genpts
= 0;
252 static int idct
= FF_IDCT_AUTO
;
253 static enum AVDiscard skip_frame
= AVDISCARD_DEFAULT
;
254 static enum AVDiscard skip_idct
= AVDISCARD_DEFAULT
;
255 static enum AVDiscard skip_loop_filter
= AVDISCARD_DEFAULT
;
256 static int error_concealment
= 3;
257 static int decoder_reorder_pts
= -1;
259 static int exit_on_keydown
;
260 static int exit_on_mousedown
;
262 static int framedrop
= 1;
263 static int infinite_buffer
= 0;
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
];
658 aspect_ratio
= av_q2d(vp
->sar
);
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
->sdl_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
->sdl_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
)
876 int flags
= SDL_HWSURFACE
| SDL_ASYNCBLIT
| SDL_HWACCEL
;
879 if (is_full_screen
) flags
|= SDL_FULLSCREEN
;
880 else flags
|= SDL_RESIZABLE
;
882 if (is_full_screen
&& fs_screen_width
) {
884 h
= fs_screen_height
;
885 } else if (!is_full_screen
&& screen_width
) {
889 } else if (is
->out_video_filter
&& is
->out_video_filter
->inputs
[0]) {
890 w
= is
->out_video_filter
->inputs
[0]->w
;
891 h
= is
->out_video_filter
->inputs
[0]->h
;
893 } else if (is
->video_st
&& is
->video_st
->codec
->width
) {
894 w
= is
->video_st
->codec
->width
;
895 h
= is
->video_st
->codec
->height
;
901 if (screen
&& is
->width
== screen
->w
&& screen
->w
== w
902 && is
->height
== screen
->h
&& screen
->h
== h
)
905 #if defined(__APPLE__) && !SDL_VERSION_ATLEAST(1, 2, 14)
906 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X and older SDL */
907 screen
= SDL_SetVideoMode(w
, h
, 24, flags
);
909 screen
= SDL_SetVideoMode(w
, h
, 0, flags
);
912 fprintf(stderr
, "SDL: could not set video mode - exiting\n");
916 window_title
= input_filename
;
917 SDL_WM_SetCaption(window_title
, window_title
);
919 is
->width
= screen
->w
;
920 is
->height
= screen
->h
;
925 /* display the current picture, if any */
926 static void video_display(VideoState
*is
)
929 video_open(cur_stream
);
930 if (is
->audio_st
&& is
->show_audio
)
931 video_audio_display(is
);
932 else if (is
->video_st
)
933 video_image_display(is
);
936 static int refresh_thread(void *opaque
)
938 VideoState
*is
= opaque
;
939 while (!is
->abort_request
) {
941 event
.type
= FF_REFRESH_EVENT
;
942 event
.user
.data1
= opaque
;
945 SDL_PushEvent(&event
);
947 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
952 /* get the current audio clock value */
953 static double get_audio_clock(VideoState
*is
)
956 int hw_buf_size
, bytes_per_sec
;
957 pts
= is
->audio_clock
;
958 hw_buf_size
= audio_write_get_buf_size(is
);
961 bytes_per_sec
= is
->sdl_sample_rate
* is
->sdl_channels
*
962 av_get_bytes_per_sample(is
->sdl_sample_fmt
);
965 pts
-= (double)hw_buf_size
/ bytes_per_sec
;
969 /* get the current video clock value */
970 static double get_video_clock(VideoState
*is
)
973 return is
->video_current_pts
;
975 return is
->video_current_pts_drift
+ av_gettime() / 1000000.0;
979 /* get the current external clock value */
980 static double get_external_clock(VideoState
*is
)
984 return is
->external_clock
+ ((ti
- is
->external_clock_time
) * 1e-6);
987 /* get the current master clock value */
988 static double get_master_clock(VideoState
*is
)
992 if (is
->av_sync_type
== AV_SYNC_VIDEO_MASTER
) {
994 val
= get_video_clock(is
);
996 val
= get_audio_clock(is
);
997 } else if (is
->av_sync_type
== AV_SYNC_AUDIO_MASTER
) {
999 val
= get_audio_clock(is
);
1001 val
= get_video_clock(is
);
1003 val
= get_external_clock(is
);
1008 /* seek in the stream */
1009 static void stream_seek(VideoState
*is
, int64_t pos
, int64_t rel
, int seek_by_bytes
)
1011 if (!is
->seek_req
) {
1014 is
->seek_flags
&= ~AVSEEK_FLAG_BYTE
;
1016 is
->seek_flags
|= AVSEEK_FLAG_BYTE
;
1021 /* pause or resume the video */
1022 static void stream_pause(VideoState
*is
)
1025 is
->frame_timer
+= av_gettime() / 1000000.0 + is
->video_current_pts_drift
- is
->video_current_pts
;
1026 if (is
->read_pause_return
!= AVERROR(ENOSYS
)) {
1027 is
->video_current_pts
= is
->video_current_pts_drift
+ av_gettime() / 1000000.0;
1029 is
->video_current_pts_drift
= is
->video_current_pts
- av_gettime() / 1000000.0;
1031 is
->paused
= !is
->paused
;
1034 static double compute_target_time(double frame_current_pts
, VideoState
*is
)
1036 double delay
, sync_threshold
, diff
;
1038 /* compute nominal delay */
1039 delay
= frame_current_pts
- is
->frame_last_pts
;
1040 if (delay
<= 0 || delay
>= 10.0) {
1041 /* if incorrect delay, use previous one */
1042 delay
= is
->frame_last_delay
;
1044 is
->frame_last_delay
= delay
;
1046 is
->frame_last_pts
= frame_current_pts
;
1048 /* update delay to follow master synchronisation source */
1049 if (((is
->av_sync_type
== AV_SYNC_AUDIO_MASTER
&& is
->audio_st
) ||
1050 is
->av_sync_type
== AV_SYNC_EXTERNAL_CLOCK
)) {
1051 /* if video is slave, we try to correct big delays by
1052 duplicating or deleting a frame */
1053 diff
= get_video_clock(is
) - get_master_clock(is
);
1055 /* skip or repeat frame. We take into account the
1056 delay to compute the threshold. I still don't know
1057 if it is the best guess */
1058 sync_threshold
= FFMAX(AV_SYNC_THRESHOLD
, delay
);
1059 if (fabs(diff
) < AV_NOSYNC_THRESHOLD
) {
1060 if (diff
<= -sync_threshold
)
1062 else if (diff
>= sync_threshold
)
1066 is
->frame_timer
+= delay
;
1068 av_dlog(NULL
, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
1069 delay
, frame_current_pts
, -diff
);
1071 return is
->frame_timer
;
1074 /* called to display each frame */
1075 static void video_refresh_timer(void *opaque
)
1077 VideoState
*is
= opaque
;
1080 SubPicture
*sp
, *sp2
;
1084 if (is
->pictq_size
== 0) {
1085 // nothing to do, no picture to display in the que
1087 double time
= av_gettime() / 1000000.0;
1089 /* dequeue the picture */
1090 vp
= &is
->pictq
[is
->pictq_rindex
];
1092 if (time
< vp
->target_clock
)
1094 /* update current video pts */
1095 is
->video_current_pts
= vp
->pts
;
1096 is
->video_current_pts_drift
= is
->video_current_pts
- time
;
1097 is
->video_current_pos
= vp
->pos
;
1098 if (is
->pictq_size
> 1) {
1099 VideoPicture
*nextvp
= &is
->pictq
[(is
->pictq_rindex
+ 1) % VIDEO_PICTURE_QUEUE_SIZE
];
1100 assert(nextvp
->target_clock
>= vp
->target_clock
);
1101 next_target
= nextvp
->target_clock
;
1103 next_target
= vp
->target_clock
+ is
->video_clock
- vp
->pts
; // FIXME pass durations cleanly
1105 if (framedrop
&& time
> next_target
) {
1106 is
->skip_frames
*= 1.0 + FRAME_SKIP_FACTOR
;
1107 if (is
->pictq_size
> 1 || time
> next_target
+ 0.5) {
1108 /* update queue size and signal for next picture */
1109 if (++is
->pictq_rindex
== VIDEO_PICTURE_QUEUE_SIZE
)
1110 is
->pictq_rindex
= 0;
1112 SDL_LockMutex(is
->pictq_mutex
);
1114 SDL_CondSignal(is
->pictq_cond
);
1115 SDL_UnlockMutex(is
->pictq_mutex
);
1120 if (is
->subtitle_st
) {
1121 if (is
->subtitle_stream_changed
) {
1122 SDL_LockMutex(is
->subpq_mutex
);
1124 while (is
->subpq_size
) {
1125 free_subpicture(&is
->subpq
[is
->subpq_rindex
]);
1127 /* update queue size and signal for next picture */
1128 if (++is
->subpq_rindex
== SUBPICTURE_QUEUE_SIZE
)
1129 is
->subpq_rindex
= 0;
1133 is
->subtitle_stream_changed
= 0;
1135 SDL_CondSignal(is
->subpq_cond
);
1136 SDL_UnlockMutex(is
->subpq_mutex
);
1138 if (is
->subpq_size
> 0) {
1139 sp
= &is
->subpq
[is
->subpq_rindex
];
1141 if (is
->subpq_size
> 1)
1142 sp2
= &is
->subpq
[(is
->subpq_rindex
+ 1) % SUBPICTURE_QUEUE_SIZE
];
1146 if ((is
->video_current_pts
> (sp
->pts
+ ((float) sp
->sub
.end_display_time
/ 1000)))
1147 || (sp2
&& is
->video_current_pts
> (sp2
->pts
+ ((float) sp2
->sub
.start_display_time
/ 1000))))
1149 free_subpicture(sp
);
1151 /* update queue size and signal for next picture */
1152 if (++is
->subpq_rindex
== SUBPICTURE_QUEUE_SIZE
)
1153 is
->subpq_rindex
= 0;
1155 SDL_LockMutex(is
->subpq_mutex
);
1157 SDL_CondSignal(is
->subpq_cond
);
1158 SDL_UnlockMutex(is
->subpq_mutex
);
1164 /* display picture */
1165 if (!display_disable
)
1168 /* update queue size and signal for next picture */
1169 if (++is
->pictq_rindex
== VIDEO_PICTURE_QUEUE_SIZE
)
1170 is
->pictq_rindex
= 0;
1172 SDL_LockMutex(is
->pictq_mutex
);
1174 SDL_CondSignal(is
->pictq_cond
);
1175 SDL_UnlockMutex(is
->pictq_mutex
);
1177 } else if (is
->audio_st
) {
1178 /* draw the next audio frame */
1180 /* if only audio stream, then display the audio bars (better
1181 than nothing, just to test the implementation */
1183 /* display picture */
1184 if (!display_disable
)
1188 static int64_t last_time
;
1190 int aqsize
, vqsize
, sqsize
;
1193 cur_time
= av_gettime();
1194 if (!last_time
|| (cur_time
- last_time
) >= 30000) {
1199 aqsize
= is
->audioq
.size
;
1201 vqsize
= is
->videoq
.size
;
1202 if (is
->subtitle_st
)
1203 sqsize
= is
->subtitleq
.size
;
1205 if (is
->audio_st
&& is
->video_st
)
1206 av_diff
= get_audio_clock(is
) - get_video_clock(is
);
1207 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64
"/%"PRId64
" \r",
1208 get_master_clock(is
), av_diff
, FFMAX(is
->skip_frames
- 1, 0), aqsize
/ 1024,
1209 vqsize
/ 1024, sqsize
, is
->pts_ctx
.num_faulty_dts
, is
->pts_ctx
.num_faulty_pts
);
1211 last_time
= cur_time
;
1216 static void stream_close(VideoState
*is
)
1220 /* XXX: use a special url_shutdown call to abort parse cleanly */
1221 is
->abort_request
= 1;
1222 SDL_WaitThread(is
->parse_tid
, NULL
);
1223 SDL_WaitThread(is
->refresh_tid
, NULL
);
1225 /* free all pictures */
1226 for (i
= 0; i
< VIDEO_PICTURE_QUEUE_SIZE
; i
++) {
1229 SDL_FreeYUVOverlay(vp
->bmp
);
1233 SDL_DestroyMutex(is
->pictq_mutex
);
1234 SDL_DestroyCond(is
->pictq_cond
);
1235 SDL_DestroyMutex(is
->subpq_mutex
);
1236 SDL_DestroyCond(is
->subpq_cond
);
1237 #if !CONFIG_AVFILTER
1238 if (is
->img_convert_ctx
)
1239 sws_freeContext(is
->img_convert_ctx
);
1244 static void do_exit(void)
1247 stream_close(cur_stream
);
1254 avformat_network_deinit();
1258 av_log(NULL
, AV_LOG_QUIET
, "");
1262 /* allocate a picture (needs to do that in main thread to avoid
1263 potential locking problems */
1264 static void alloc_picture(void *opaque
)
1266 VideoState
*is
= opaque
;
1269 vp
= &is
->pictq
[is
->pictq_windex
];
1272 SDL_FreeYUVOverlay(vp
->bmp
);
1275 vp
->width
= is
->out_video_filter
->inputs
[0]->w
;
1276 vp
->height
= is
->out_video_filter
->inputs
[0]->h
;
1277 vp
->pix_fmt
= is
->out_video_filter
->inputs
[0]->format
;
1279 vp
->width
= is
->video_st
->codec
->width
;
1280 vp
->height
= is
->video_st
->codec
->height
;
1281 vp
->pix_fmt
= is
->video_st
->codec
->pix_fmt
;
1284 vp
->bmp
= SDL_CreateYUVOverlay(vp
->width
, vp
->height
,
1287 if (!vp
->bmp
|| vp
->bmp
->pitches
[0] < vp
->width
) {
1288 /* SDL allocates a buffer smaller than requested if the video
1289 * overlay hardware is unable to support the requested size. */
1290 fprintf(stderr
, "Error: the video system does not support an image\n"
1291 "size of %dx%d pixels. Try using -vf \"scale=w:h\"\n"
1292 "to reduce the image size.\n", vp
->width
, vp
->height
);
1296 SDL_LockMutex(is
->pictq_mutex
);
1298 SDL_CondSignal(is
->pictq_cond
);
1299 SDL_UnlockMutex(is
->pictq_mutex
);
1302 /* The 'pts' parameter is the dts of the packet / pts of the frame and
1303 * guessed if not known. */
1304 static int queue_picture(VideoState
*is
, AVFrame
*src_frame
, double pts
, int64_t pos
)
1310 int dst_pix_fmt
= AV_PIX_FMT_YUV420P
;
1312 /* wait until we have space to put a new picture */
1313 SDL_LockMutex(is
->pictq_mutex
);
1315 if (is
->pictq_size
>= VIDEO_PICTURE_QUEUE_SIZE
&& !is
->refresh
)
1316 is
->skip_frames
= FFMAX(1.0 - FRAME_SKIP_FACTOR
, is
->skip_frames
* (1.0 - FRAME_SKIP_FACTOR
));
1318 while (is
->pictq_size
>= VIDEO_PICTURE_QUEUE_SIZE
&&
1319 !is
->videoq
.abort_request
) {
1320 SDL_CondWait(is
->pictq_cond
, is
->pictq_mutex
);
1322 SDL_UnlockMutex(is
->pictq_mutex
);
1324 if (is
->videoq
.abort_request
)
1327 vp
= &is
->pictq
[is
->pictq_windex
];
1329 /* alloc or resize hardware picture buffer */
1330 if (!vp
->bmp
|| vp
->reallocate
||
1332 vp
->width
!= is
->out_video_filter
->inputs
[0]->w
||
1333 vp
->height
!= is
->out_video_filter
->inputs
[0]->h
) {
1335 vp
->width
!= is
->video_st
->codec
->width
||
1336 vp
->height
!= is
->video_st
->codec
->height
) {
1343 /* the allocation must be done in the main thread to avoid
1345 event
.type
= FF_ALLOC_EVENT
;
1346 event
.user
.data1
= is
;
1347 SDL_PushEvent(&event
);
1349 /* wait until the picture is allocated */
1350 SDL_LockMutex(is
->pictq_mutex
);
1351 while (!vp
->allocated
&& !is
->videoq
.abort_request
) {
1352 SDL_CondWait(is
->pictq_cond
, is
->pictq_mutex
);
1354 SDL_UnlockMutex(is
->pictq_mutex
);
1356 if (is
->videoq
.abort_request
)
1360 /* if the frame is not skipped, then display it */
1362 AVPicture pict
= { { 0 } };
1364 /* get a pointer on the bitmap */
1365 SDL_LockYUVOverlay (vp
->bmp
);
1367 pict
.data
[0] = vp
->bmp
->pixels
[0];
1368 pict
.data
[1] = vp
->bmp
->pixels
[2];
1369 pict
.data
[2] = vp
->bmp
->pixels
[1];
1371 pict
.linesize
[0] = vp
->bmp
->pitches
[0];
1372 pict
.linesize
[1] = vp
->bmp
->pitches
[2];
1373 pict
.linesize
[2] = vp
->bmp
->pitches
[1];
1376 pict_src
.data
[0] = src_frame
->data
[0];
1377 pict_src
.data
[1] = src_frame
->data
[1];
1378 pict_src
.data
[2] = src_frame
->data
[2];
1380 pict_src
.linesize
[0] = src_frame
->linesize
[0];
1381 pict_src
.linesize
[1] = src_frame
->linesize
[1];
1382 pict_src
.linesize
[2] = src_frame
->linesize
[2];
1384 // FIXME use direct rendering
1385 av_picture_copy(&pict
, &pict_src
,
1386 vp
->pix_fmt
, vp
->width
, vp
->height
);
1388 av_opt_get_int(sws_opts
, "sws_flags", 0, &sws_flags
);
1389 is
->img_convert_ctx
= sws_getCachedContext(is
->img_convert_ctx
,
1390 vp
->width
, vp
->height
, vp
->pix_fmt
, vp
->width
, vp
->height
,
1391 dst_pix_fmt
, sws_flags
, NULL
, NULL
, NULL
);
1392 if (is
->img_convert_ctx
== NULL
) {
1393 fprintf(stderr
, "Cannot initialize the conversion context\n");
1396 sws_scale(is
->img_convert_ctx
, src_frame
->data
, src_frame
->linesize
,
1397 0, vp
->height
, pict
.data
, pict
.linesize
);
1399 /* update the bitmap content */
1400 SDL_UnlockYUVOverlay(vp
->bmp
);
1405 /* now we can update the picture count */
1406 if (++is
->pictq_windex
== VIDEO_PICTURE_QUEUE_SIZE
)
1407 is
->pictq_windex
= 0;
1408 SDL_LockMutex(is
->pictq_mutex
);
1409 vp
->target_clock
= compute_target_time(vp
->pts
, is
);
1412 SDL_UnlockMutex(is
->pictq_mutex
);
1417 /* Compute the exact PTS for the picture if it is omitted in the stream.
1418 * The 'pts1' parameter is the dts of the packet / pts of the frame. */
1419 static int output_picture2(VideoState
*is
, AVFrame
*src_frame
, double pts1
, int64_t pos
)
1421 double frame_delay
, pts
;
1427 /* update video clock with pts, if present */
1428 is
->video_clock
= pts
;
1430 pts
= is
->video_clock
;
1432 /* update video clock for next frame */
1433 frame_delay
= av_q2d(is
->video_st
->codec
->time_base
);
1434 /* for MPEG2, the frame can be repeated, so we update the
1435 clock accordingly */
1436 frame_delay
+= src_frame
->repeat_pict
* (frame_delay
* 0.5);
1437 is
->video_clock
+= frame_delay
;
1439 ret
= queue_picture(is
, src_frame
, pts
, pos
);
1440 av_frame_unref(src_frame
);
1444 static int get_video_frame(VideoState
*is
, AVFrame
*frame
, int64_t *pts
, AVPacket
*pkt
)
1448 if (packet_queue_get(&is
->videoq
, pkt
, 1) < 0)
1451 if (pkt
->data
== flush_pkt
.data
) {
1452 avcodec_flush_buffers(is
->video_st
->codec
);
1454 SDL_LockMutex(is
->pictq_mutex
);
1455 // Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1456 for (i
= 0; i
< VIDEO_PICTURE_QUEUE_SIZE
; i
++) {
1457 is
->pictq
[i
].target_clock
= 0;
1459 while (is
->pictq_size
&& !is
->videoq
.abort_request
) {
1460 SDL_CondWait(is
->pictq_cond
, is
->pictq_mutex
);
1462 is
->video_current_pos
= -1;
1463 SDL_UnlockMutex(is
->pictq_mutex
);
1465 init_pts_correction(&is
->pts_ctx
);
1466 is
->frame_last_pts
= AV_NOPTS_VALUE
;
1467 is
->frame_last_delay
= 0;
1468 is
->frame_timer
= (double)av_gettime() / 1000000.0;
1469 is
->skip_frames
= 1;
1470 is
->skip_frames_index
= 0;
1474 avcodec_decode_video2(is
->video_st
->codec
, frame
, &got_picture
, pkt
);
1477 if (decoder_reorder_pts
== -1) {
1478 *pts
= guess_correct_pts(&is
->pts_ctx
, frame
->pkt_pts
, frame
->pkt_dts
);
1479 } else if (decoder_reorder_pts
) {
1480 *pts
= frame
->pkt_pts
;
1482 *pts
= frame
->pkt_dts
;
1485 if (*pts
== AV_NOPTS_VALUE
) {
1488 if (is
->video_st
->sample_aspect_ratio
.num
) {
1489 frame
->sample_aspect_ratio
= is
->video_st
->sample_aspect_ratio
;
1492 is
->skip_frames_index
+= 1;
1493 if (is
->skip_frames_index
>= is
->skip_frames
) {
1494 is
->skip_frames_index
-= FFMAX(is
->skip_frames
, 1.0);
1497 av_frame_unref(frame
);
1503 static int configure_video_filters(AVFilterGraph
*graph
, VideoState
*is
, const char *vfilters
)
1505 char sws_flags_str
[128];
1506 char buffersrc_args
[256];
1508 AVFilterContext
*filt_src
= NULL
, *filt_out
= NULL
, *filt_format
;
1509 AVCodecContext
*codec
= is
->video_st
->codec
;
1511 snprintf(sws_flags_str
, sizeof(sws_flags_str
), "flags=%"PRId64
, sws_flags
);
1512 graph
->scale_sws_opts
= av_strdup(sws_flags_str
);
1514 snprintf(buffersrc_args
, sizeof(buffersrc_args
), "%d:%d:%d:%d:%d:%d:%d",
1515 codec
->width
, codec
->height
, codec
->pix_fmt
,
1516 is
->video_st
->time_base
.num
, is
->video_st
->time_base
.den
,
1517 codec
->sample_aspect_ratio
.num
, codec
->sample_aspect_ratio
.den
);
1520 if ((ret
= avfilter_graph_create_filter(&filt_src
,
1521 avfilter_get_by_name("buffer"),
1522 "src", buffersrc_args
, NULL
,
1525 if ((ret
= avfilter_graph_create_filter(&filt_out
,
1526 avfilter_get_by_name("buffersink"),
1527 "out", NULL
, NULL
, graph
)) < 0)
1530 if ((ret
= avfilter_graph_create_filter(&filt_format
,
1531 avfilter_get_by_name("format"),
1532 "format", "yuv420p", NULL
, graph
)) < 0)
1534 if ((ret
= avfilter_link(filt_format
, 0, filt_out
, 0)) < 0)
1539 AVFilterInOut
*outputs
= avfilter_inout_alloc();
1540 AVFilterInOut
*inputs
= avfilter_inout_alloc();
1542 outputs
->name
= av_strdup("in");
1543 outputs
->filter_ctx
= filt_src
;
1544 outputs
->pad_idx
= 0;
1545 outputs
->next
= NULL
;
1547 inputs
->name
= av_strdup("out");
1548 inputs
->filter_ctx
= filt_format
;
1549 inputs
->pad_idx
= 0;
1550 inputs
->next
= NULL
;
1552 if ((ret
= avfilter_graph_parse(graph
, vfilters
, inputs
, outputs
, NULL
)) < 0)
1555 if ((ret
= avfilter_link(filt_src
, 0, filt_format
, 0)) < 0)
1559 if ((ret
= avfilter_graph_config(graph
, NULL
)) < 0)
1562 is
->in_video_filter
= filt_src
;
1563 is
->out_video_filter
= filt_out
;
1568 #endif /* CONFIG_AVFILTER */
1570 static int video_thread(void *arg
)
1572 AVPacket pkt
= { 0 };
1573 VideoState
*is
= arg
;
1574 AVFrame
*frame
= av_frame_alloc();
1580 AVFilterGraph
*graph
= avfilter_graph_alloc();
1581 AVFilterContext
*filt_out
= NULL
, *filt_in
= NULL
;
1582 int last_w
= is
->video_st
->codec
->width
;
1583 int last_h
= is
->video_st
->codec
->height
;
1585 if ((ret
= configure_video_filters(graph
, is
, vfilters
)) < 0)
1587 filt_in
= is
->in_video_filter
;
1588 filt_out
= is
->out_video_filter
;
1595 while (is
->paused
&& !is
->videoq
.abort_request
)
1598 av_free_packet(&pkt
);
1600 ret
= get_video_frame(is
, frame
, &pts_int
, &pkt
);
1608 if ( last_w
!= is
->video_st
->codec
->width
1609 || last_h
!= is
->video_st
->codec
->height
) {
1610 av_dlog(NULL
, "Changing size %dx%d -> %dx%d\n", last_w
, last_h
,
1611 is
->video_st
->codec
->width
, is
->video_st
->codec
->height
);
1612 avfilter_graph_free(&graph
);
1613 graph
= avfilter_graph_alloc();
1614 if ((ret
= configure_video_filters(graph
, is
, vfilters
)) < 0)
1616 filt_in
= is
->in_video_filter
;
1617 filt_out
= is
->out_video_filter
;
1618 last_w
= is
->video_st
->codec
->width
;
1619 last_h
= is
->video_st
->codec
->height
;
1622 frame
->pts
= pts_int
;
1623 ret
= av_buffersrc_add_frame(filt_in
, frame
);
1628 ret
= av_buffersink_get_frame(filt_out
, frame
);
1634 pts_int
= frame
->pts
;
1635 tb
= filt_out
->inputs
[0]->time_base
;
1636 if (av_cmp_q(tb
, is
->video_st
->time_base
)) {
1637 av_unused
int64_t pts1
= pts_int
;
1638 pts_int
= av_rescale_q(pts_int
, tb
, is
->video_st
->time_base
);
1639 av_dlog(NULL
, "video_thread(): "
1640 "tb:%d/%d pts:%"PRId64
" -> tb:%d/%d pts:%"PRId64
"\n",
1641 tb
.num
, tb
.den
, pts1
,
1642 is
->video_st
->time_base
.num
, is
->video_st
->time_base
.den
, pts_int
);
1644 pts
= pts_int
* av_q2d(is
->video_st
->time_base
);
1645 ret
= output_picture2(is
, frame
, pts
, 0);
1648 pts
= pts_int
* av_q2d(is
->video_st
->time_base
);
1649 ret
= output_picture2(is
, frame
, pts
, pkt
.pos
);
1658 stream_pause(cur_stream
);
1662 av_freep(&vfilters
);
1663 avfilter_graph_free(&graph
);
1665 av_free_packet(&pkt
);
1666 av_frame_free(&frame
);
1670 static int subtitle_thread(void *arg
)
1672 VideoState
*is
= arg
;
1674 AVPacket pkt1
, *pkt
= &pkt1
;
1678 int r
, g
, b
, y
, u
, v
, a
;
1681 while (is
->paused
&& !is
->subtitleq
.abort_request
) {
1684 if (packet_queue_get(&is
->subtitleq
, pkt
, 1) < 0)
1687 if (pkt
->data
== flush_pkt
.data
) {
1688 avcodec_flush_buffers(is
->subtitle_st
->codec
);
1691 SDL_LockMutex(is
->subpq_mutex
);
1692 while (is
->subpq_size
>= SUBPICTURE_QUEUE_SIZE
&&
1693 !is
->subtitleq
.abort_request
) {
1694 SDL_CondWait(is
->subpq_cond
, is
->subpq_mutex
);
1696 SDL_UnlockMutex(is
->subpq_mutex
);
1698 if (is
->subtitleq
.abort_request
)
1701 sp
= &is
->subpq
[is
->subpq_windex
];
1703 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1704 this packet, if any */
1706 if (pkt
->pts
!= AV_NOPTS_VALUE
)
1707 pts
= av_q2d(is
->subtitle_st
->time_base
) * pkt
->pts
;
1709 avcodec_decode_subtitle2(is
->subtitle_st
->codec
, &sp
->sub
,
1710 &got_subtitle
, pkt
);
1712 if (got_subtitle
&& sp
->sub
.format
== 0) {
1715 for (i
= 0; i
< sp
->sub
.num_rects
; i
++)
1717 for (j
= 0; j
< sp
->sub
.rects
[i
]->nb_colors
; j
++)
1719 RGBA_IN(r
, g
, b
, a
, (uint32_t*)sp
->sub
.rects
[i
]->pict
.data
[1] + j
);
1720 y
= RGB_TO_Y_CCIR(r
, g
, b
);
1721 u
= RGB_TO_U_CCIR(r
, g
, b
, 0);
1722 v
= RGB_TO_V_CCIR(r
, g
, b
, 0);
1723 YUVA_OUT((uint32_t*)sp
->sub
.rects
[i
]->pict
.data
[1] + j
, y
, u
, v
, a
);
1727 /* now we can update the picture count */
1728 if (++is
->subpq_windex
== SUBPICTURE_QUEUE_SIZE
)
1729 is
->subpq_windex
= 0;
1730 SDL_LockMutex(is
->subpq_mutex
);
1732 SDL_UnlockMutex(is
->subpq_mutex
);
1734 av_free_packet(pkt
);
1739 /* copy samples for viewing in editor window */
1740 static void update_sample_display(VideoState
*is
, short *samples
, int samples_size
)
1744 size
= samples_size
/ sizeof(short);
1746 len
= SAMPLE_ARRAY_SIZE
- is
->sample_array_index
;
1749 memcpy(is
->sample_array
+ is
->sample_array_index
, samples
, len
* sizeof(short));
1751 is
->sample_array_index
+= len
;
1752 if (is
->sample_array_index
>= SAMPLE_ARRAY_SIZE
)
1753 is
->sample_array_index
= 0;
1758 /* return the new audio buffer size (samples can be added or deleted
1759 to get better sync if video or external master clock) */
1760 static int synchronize_audio(VideoState
*is
, short *samples
,
1761 int samples_size1
, double pts
)
1763 int n
, samples_size
;
1766 n
= is
->sdl_channels
* av_get_bytes_per_sample(is
->sdl_sample_fmt
);
1767 samples_size
= samples_size1
;
1769 /* if not master, then we try to remove or add samples to correct the clock */
1770 if (((is
->av_sync_type
== AV_SYNC_VIDEO_MASTER
&& is
->video_st
) ||
1771 is
->av_sync_type
== AV_SYNC_EXTERNAL_CLOCK
)) {
1772 double diff
, avg_diff
;
1773 int wanted_size
, min_size
, max_size
, nb_samples
;
1775 ref_clock
= get_master_clock(is
);
1776 diff
= get_audio_clock(is
) - ref_clock
;
1778 if (diff
< AV_NOSYNC_THRESHOLD
) {
1779 is
->audio_diff_cum
= diff
+ is
->audio_diff_avg_coef
* is
->audio_diff_cum
;
1780 if (is
->audio_diff_avg_count
< AUDIO_DIFF_AVG_NB
) {
1781 /* not enough measures to have a correct estimate */
1782 is
->audio_diff_avg_count
++;
1784 /* estimate the A-V difference */
1785 avg_diff
= is
->audio_diff_cum
* (1.0 - is
->audio_diff_avg_coef
);
1787 if (fabs(avg_diff
) >= is
->audio_diff_threshold
) {
1788 wanted_size
= samples_size
+ ((int)(diff
* is
->sdl_sample_rate
) * n
);
1789 nb_samples
= samples_size
/ n
;
1791 min_size
= ((nb_samples
* (100 - SAMPLE_CORRECTION_PERCENT_MAX
)) / 100) * n
;
1792 max_size
= ((nb_samples
* (100 + SAMPLE_CORRECTION_PERCENT_MAX
)) / 100) * n
;
1793 if (wanted_size
< min_size
)
1794 wanted_size
= min_size
;
1795 else if (wanted_size
> max_size
)
1796 wanted_size
= max_size
;
1798 /* add or remove samples to correction the synchro */
1799 if (wanted_size
< samples_size
) {
1800 /* remove samples */
1801 samples_size
= wanted_size
;
1802 } else if (wanted_size
> samples_size
) {
1803 uint8_t *samples_end
, *q
;
1807 nb
= (samples_size
- wanted_size
);
1808 samples_end
= (uint8_t *)samples
+ samples_size
- n
;
1809 q
= samples_end
+ n
;
1811 memcpy(q
, samples_end
, n
);
1815 samples_size
= wanted_size
;
1818 av_dlog(NULL
, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1819 diff
, avg_diff
, samples_size
- samples_size1
,
1820 is
->audio_clock
, is
->video_clock
, is
->audio_diff_threshold
);
1823 /* too big difference : may be initial PTS errors, so
1825 is
->audio_diff_avg_count
= 0;
1826 is
->audio_diff_cum
= 0;
1830 return samples_size
;
1833 /* decode one audio frame and returns its uncompressed size */
1834 static int audio_decode_frame(VideoState
*is
, double *pts_ptr
)
1836 AVPacket
*pkt_temp
= &is
->audio_pkt_temp
;
1837 AVPacket
*pkt
= &is
->audio_pkt
;
1838 AVCodecContext
*dec
= is
->audio_st
->codec
;
1839 int n
, len1
, data_size
, got_frame
;
1842 int flush_complete
= 0;
1845 /* NOTE: the audio packet can contain several frames */
1846 while (pkt_temp
->size
> 0 || (!pkt_temp
->data
&& new_packet
)) {
1847 int resample_changed
, audio_resample
;
1850 if (!(is
->frame
= avcodec_alloc_frame()))
1851 return AVERROR(ENOMEM
);
1853 avcodec_get_frame_defaults(is
->frame
);
1858 len1
= avcodec_decode_audio4(dec
, is
->frame
, &got_frame
, pkt_temp
);
1860 /* if error, we skip the frame */
1865 pkt_temp
->data
+= len1
;
1866 pkt_temp
->size
-= len1
;
1869 /* stop sending empty packets if the decoder is finished */
1870 if (!pkt_temp
->data
&& dec
->codec
->capabilities
& CODEC_CAP_DELAY
)
1874 data_size
= av_samples_get_buffer_size(NULL
, dec
->channels
,
1875 is
->frame
->nb_samples
,
1876 is
->frame
->format
, 1);
1878 audio_resample
= is
->frame
->format
!= is
->sdl_sample_fmt
||
1879 is
->frame
->channel_layout
!= is
->sdl_channel_layout
||
1880 is
->frame
->sample_rate
!= is
->sdl_sample_rate
;
1882 resample_changed
= is
->frame
->format
!= is
->resample_sample_fmt
||
1883 is
->frame
->channel_layout
!= is
->resample_channel_layout
||
1884 is
->frame
->sample_rate
!= is
->resample_sample_rate
;
1886 if ((!is
->avr
&& audio_resample
) || resample_changed
) {
1889 avresample_close(is
->avr
);
1890 else if (audio_resample
) {
1891 is
->avr
= avresample_alloc_context();
1893 fprintf(stderr
, "error allocating AVAudioResampleContext\n");
1897 if (audio_resample
) {
1898 av_opt_set_int(is
->avr
, "in_channel_layout", is
->frame
->channel_layout
, 0);
1899 av_opt_set_int(is
->avr
, "in_sample_fmt", is
->frame
->format
, 0);
1900 av_opt_set_int(is
->avr
, "in_sample_rate", is
->frame
->sample_rate
, 0);
1901 av_opt_set_int(is
->avr
, "out_channel_layout", is
->sdl_channel_layout
, 0);
1902 av_opt_set_int(is
->avr
, "out_sample_fmt", is
->sdl_sample_fmt
, 0);
1903 av_opt_set_int(is
->avr
, "out_sample_rate", is
->sdl_sample_rate
, 0);
1905 if ((ret
= avresample_open(is
->avr
)) < 0) {
1906 fprintf(stderr
, "error initializing libavresample\n");
1910 is
->resample_sample_fmt
= is
->frame
->format
;
1911 is
->resample_channel_layout
= is
->frame
->channel_layout
;
1912 is
->resample_sample_rate
= is
->frame
->sample_rate
;
1915 if (audio_resample
) {
1917 int out_samples
, out_size
, out_linesize
;
1918 int osize
= av_get_bytes_per_sample(is
->sdl_sample_fmt
);
1919 int nb_samples
= is
->frame
->nb_samples
;
1921 out_size
= av_samples_get_buffer_size(&out_linesize
,
1924 is
->sdl_sample_fmt
, 0);
1925 tmp_out
= av_realloc(is
->audio_buf1
, out_size
);
1927 return AVERROR(ENOMEM
);
1928 is
->audio_buf1
= tmp_out
;
1930 out_samples
= avresample_convert(is
->avr
,
1932 out_linesize
, nb_samples
,
1934 is
->frame
->linesize
[0],
1935 is
->frame
->nb_samples
);
1936 if (out_samples
< 0) {
1937 fprintf(stderr
, "avresample_convert() failed\n");
1940 is
->audio_buf
= is
->audio_buf1
;
1941 data_size
= out_samples
* osize
* is
->sdl_channels
;
1943 is
->audio_buf
= is
->frame
->data
[0];
1946 /* if no pts, then compute it */
1947 pts
= is
->audio_clock
;
1949 n
= is
->sdl_channels
* av_get_bytes_per_sample(is
->sdl_sample_fmt
);
1950 is
->audio_clock
+= (double)data_size
/
1951 (double)(n
* is
->sdl_sample_rate
);
1954 static double last_clock
;
1955 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1956 is
->audio_clock
- last_clock
,
1957 is
->audio_clock
, pts
);
1958 last_clock
= is
->audio_clock
;
1964 /* free the current packet */
1966 av_free_packet(pkt
);
1967 memset(pkt_temp
, 0, sizeof(*pkt_temp
));
1969 if (is
->paused
|| is
->audioq
.abort_request
) {
1973 /* read next packet */
1974 if ((new_packet
= packet_queue_get(&is
->audioq
, pkt
, 1)) < 0)
1977 if (pkt
->data
== flush_pkt
.data
) {
1978 avcodec_flush_buffers(dec
);
1984 /* if update the audio clock with the pts */
1985 if (pkt
->pts
!= AV_NOPTS_VALUE
) {
1986 is
->audio_clock
= av_q2d(is
->audio_st
->time_base
)*pkt
->pts
;
1991 /* prepare a new audio buffer */
1992 static void sdl_audio_callback(void *opaque
, Uint8
*stream
, int len
)
1994 VideoState
*is
= opaque
;
1995 int audio_size
, len1
;
1998 audio_callback_time
= av_gettime();
2001 if (is
->audio_buf_index
>= is
->audio_buf_size
) {
2002 audio_size
= audio_decode_frame(is
, &pts
);
2003 if (audio_size
< 0) {
2004 /* if error, just output silence */
2005 is
->audio_buf
= is
->silence_buf
;
2006 is
->audio_buf_size
= sizeof(is
->silence_buf
);
2009 update_sample_display(is
, (int16_t *)is
->audio_buf
, audio_size
);
2010 audio_size
= synchronize_audio(is
, (int16_t *)is
->audio_buf
, audio_size
,
2012 is
->audio_buf_size
= audio_size
;
2014 is
->audio_buf_index
= 0;
2016 len1
= is
->audio_buf_size
- is
->audio_buf_index
;
2019 memcpy(stream
, (uint8_t *)is
->audio_buf
+ is
->audio_buf_index
, len1
);
2022 is
->audio_buf_index
+= len1
;
2026 /* open a given stream. Return 0 if OK */
2027 static int stream_component_open(VideoState
*is
, int stream_index
)
2029 AVFormatContext
*ic
= is
->ic
;
2030 AVCodecContext
*avctx
;
2032 SDL_AudioSpec wanted_spec
, spec
;
2034 AVDictionaryEntry
*t
= NULL
;
2036 if (stream_index
< 0 || stream_index
>= ic
->nb_streams
)
2038 avctx
= ic
->streams
[stream_index
]->codec
;
2040 opts
= filter_codec_opts(codec_opts
, avctx
->codec_id
, ic
, ic
->streams
[stream_index
], NULL
);
2042 codec
= avcodec_find_decoder(avctx
->codec_id
);
2043 avctx
->debug_mv
= debug_mv
;
2044 avctx
->debug
= debug
;
2045 avctx
->workaround_bugs
= workaround_bugs
;
2046 avctx
->idct_algo
= idct
;
2047 avctx
->skip_frame
= skip_frame
;
2048 avctx
->skip_idct
= skip_idct
;
2049 avctx
->skip_loop_filter
= skip_loop_filter
;
2050 avctx
->error_concealment
= error_concealment
;
2052 if (fast
) avctx
->flags2
|= CODEC_FLAG2_FAST
;
2054 if (!av_dict_get(opts
, "threads", NULL
, 0))
2055 av_dict_set(&opts
, "threads", "auto", 0);
2056 if (avctx
->codec_type
== AVMEDIA_TYPE_VIDEO
)
2057 av_dict_set(&opts
, "refcounted_frames", "1", 0);
2059 avcodec_open2(avctx
, codec
, &opts
) < 0)
2061 if ((t
= av_dict_get(opts
, "", NULL
, AV_DICT_IGNORE_SUFFIX
))) {
2062 av_log(NULL
, AV_LOG_ERROR
, "Option %s not found.\n", t
->key
);
2063 return AVERROR_OPTION_NOT_FOUND
;
2066 /* prepare audio output */
2067 if (avctx
->codec_type
== AVMEDIA_TYPE_AUDIO
) {
2068 is
->sdl_sample_rate
= avctx
->sample_rate
;
2070 if (!avctx
->channel_layout
)
2071 avctx
->channel_layout
= av_get_default_channel_layout(avctx
->channels
);
2072 if (!avctx
->channel_layout
) {
2073 fprintf(stderr
, "unable to guess channel layout\n");
2076 if (avctx
->channels
== 1)
2077 is
->sdl_channel_layout
= AV_CH_LAYOUT_MONO
;
2079 is
->sdl_channel_layout
= AV_CH_LAYOUT_STEREO
;
2080 is
->sdl_channels
= av_get_channel_layout_nb_channels(is
->sdl_channel_layout
);
2082 wanted_spec
.format
= AUDIO_S16SYS
;
2083 wanted_spec
.freq
= is
->sdl_sample_rate
;
2084 wanted_spec
.channels
= is
->sdl_channels
;
2085 wanted_spec
.silence
= 0;
2086 wanted_spec
.samples
= SDL_AUDIO_BUFFER_SIZE
;
2087 wanted_spec
.callback
= sdl_audio_callback
;
2088 wanted_spec
.userdata
= is
;
2089 if (SDL_OpenAudio(&wanted_spec
, &spec
) < 0) {
2090 fprintf(stderr
, "SDL_OpenAudio: %s\n", SDL_GetError());
2093 is
->audio_hw_buf_size
= spec
.size
;
2094 is
->sdl_sample_fmt
= AV_SAMPLE_FMT_S16
;
2095 is
->resample_sample_fmt
= is
->sdl_sample_fmt
;
2096 is
->resample_channel_layout
= avctx
->channel_layout
;
2097 is
->resample_sample_rate
= avctx
->sample_rate
;
2100 ic
->streams
[stream_index
]->discard
= AVDISCARD_DEFAULT
;
2101 switch (avctx
->codec_type
) {
2102 case AVMEDIA_TYPE_AUDIO
:
2103 is
->audio_stream
= stream_index
;
2104 is
->audio_st
= ic
->streams
[stream_index
];
2105 is
->audio_buf_size
= 0;
2106 is
->audio_buf_index
= 0;
2108 /* init averaging filter */
2109 is
->audio_diff_avg_coef
= exp(log(0.01) / AUDIO_DIFF_AVG_NB
);
2110 is
->audio_diff_avg_count
= 0;
2111 /* since we do not have a precise anough audio fifo fullness,
2112 we correct audio sync only if larger than this threshold */
2113 is
->audio_diff_threshold
= 2.0 * SDL_AUDIO_BUFFER_SIZE
/ avctx
->sample_rate
;
2115 memset(&is
->audio_pkt
, 0, sizeof(is
->audio_pkt
));
2116 packet_queue_init(&is
->audioq
);
2119 case AVMEDIA_TYPE_VIDEO
:
2120 is
->video_stream
= stream_index
;
2121 is
->video_st
= ic
->streams
[stream_index
];
2123 packet_queue_init(&is
->videoq
);
2124 is
->video_tid
= SDL_CreateThread(video_thread
, is
);
2126 case AVMEDIA_TYPE_SUBTITLE
:
2127 is
->subtitle_stream
= stream_index
;
2128 is
->subtitle_st
= ic
->streams
[stream_index
];
2129 packet_queue_init(&is
->subtitleq
);
2131 is
->subtitle_tid
= SDL_CreateThread(subtitle_thread
, is
);
2139 static void stream_component_close(VideoState
*is
, int stream_index
)
2141 AVFormatContext
*ic
= is
->ic
;
2142 AVCodecContext
*avctx
;
2144 if (stream_index
< 0 || stream_index
>= ic
->nb_streams
)
2146 avctx
= ic
->streams
[stream_index
]->codec
;
2148 switch (avctx
->codec_type
) {
2149 case AVMEDIA_TYPE_AUDIO
:
2150 packet_queue_abort(&is
->audioq
);
2154 packet_queue_end(&is
->audioq
);
2155 av_free_packet(&is
->audio_pkt
);
2157 avresample_free(&is
->avr
);
2158 av_freep(&is
->audio_buf1
);
2159 is
->audio_buf
= NULL
;
2160 avcodec_free_frame(&is
->frame
);
2163 av_rdft_end(is
->rdft
);
2164 av_freep(&is
->rdft_data
);
2169 case AVMEDIA_TYPE_VIDEO
:
2170 packet_queue_abort(&is
->videoq
);
2172 /* note: we also signal this mutex to make sure we deblock the
2173 video thread in all cases */
2174 SDL_LockMutex(is
->pictq_mutex
);
2175 SDL_CondSignal(is
->pictq_cond
);
2176 SDL_UnlockMutex(is
->pictq_mutex
);
2178 SDL_WaitThread(is
->video_tid
, NULL
);
2180 packet_queue_end(&is
->videoq
);
2182 case AVMEDIA_TYPE_SUBTITLE
:
2183 packet_queue_abort(&is
->subtitleq
);
2185 /* note: we also signal this mutex to make sure we deblock the
2186 video thread in all cases */
2187 SDL_LockMutex(is
->subpq_mutex
);
2188 is
->subtitle_stream_changed
= 1;
2190 SDL_CondSignal(is
->subpq_cond
);
2191 SDL_UnlockMutex(is
->subpq_mutex
);
2193 SDL_WaitThread(is
->subtitle_tid
, NULL
);
2195 packet_queue_end(&is
->subtitleq
);
2201 ic
->streams
[stream_index
]->discard
= AVDISCARD_ALL
;
2202 avcodec_close(avctx
);
2203 switch (avctx
->codec_type
) {
2204 case AVMEDIA_TYPE_AUDIO
:
2205 is
->audio_st
= NULL
;
2206 is
->audio_stream
= -1;
2208 case AVMEDIA_TYPE_VIDEO
:
2209 is
->video_st
= NULL
;
2210 is
->video_stream
= -1;
2212 case AVMEDIA_TYPE_SUBTITLE
:
2213 is
->subtitle_st
= NULL
;
2214 is
->subtitle_stream
= -1;
2221 /* since we have only one decoding thread, we can use a global
2222 variable instead of a thread local variable */
2223 static VideoState
*global_video_state
;
2225 static int decode_interrupt_cb(void *ctx
)
2227 return global_video_state
&& global_video_state
->abort_request
;
2230 /* this thread gets the stream from the disk or the network */
2231 static int decode_thread(void *arg
)
2233 VideoState
*is
= arg
;
2234 AVFormatContext
*ic
= NULL
;
2236 int st_index
[AVMEDIA_TYPE_NB
];
2237 AVPacket pkt1
, *pkt
= &pkt1
;
2239 int pkt_in_play_range
= 0;
2240 AVDictionaryEntry
*t
;
2241 AVDictionary
**opts
;
2242 int orig_nb_streams
;
2244 memset(st_index
, -1, sizeof(st_index
));
2245 is
->video_stream
= -1;
2246 is
->audio_stream
= -1;
2247 is
->subtitle_stream
= -1;
2249 global_video_state
= is
;
2251 ic
= avformat_alloc_context();
2252 ic
->interrupt_callback
.callback
= decode_interrupt_cb
;
2253 err
= avformat_open_input(&ic
, is
->filename
, is
->iformat
, &format_opts
);
2255 print_error(is
->filename
, err
);
2259 if ((t
= av_dict_get(format_opts
, "", NULL
, AV_DICT_IGNORE_SUFFIX
))) {
2260 av_log(NULL
, AV_LOG_ERROR
, "Option %s not found.\n", t
->key
);
2261 ret
= AVERROR_OPTION_NOT_FOUND
;
2267 ic
->flags
|= AVFMT_FLAG_GENPTS
;
2269 opts
= setup_find_stream_info_opts(ic
, codec_opts
);
2270 orig_nb_streams
= ic
->nb_streams
;
2272 err
= avformat_find_stream_info(ic
, opts
);
2274 fprintf(stderr
, "%s: could not find codec parameters\n", is
->filename
);
2278 for (i
= 0; i
< orig_nb_streams
; i
++)
2279 av_dict_free(&opts
[i
]);
2283 ic
->pb
->eof_reached
= 0; // FIXME hack, avplay maybe should not use url_feof() to test for the end
2285 if (seek_by_bytes
< 0)
2286 seek_by_bytes
= !!(ic
->iformat
->flags
& AVFMT_TS_DISCONT
);
2288 /* if seeking requested, we execute it */
2289 if (start_time
!= AV_NOPTS_VALUE
) {
2292 timestamp
= start_time
;
2293 /* add the stream start time */
2294 if (ic
->start_time
!= AV_NOPTS_VALUE
)
2295 timestamp
+= ic
->start_time
;
2296 ret
= avformat_seek_file(ic
, -1, INT64_MIN
, timestamp
, INT64_MAX
, 0);
2298 fprintf(stderr
, "%s: could not seek to position %0.3f\n",
2299 is
->filename
, (double)timestamp
/ AV_TIME_BASE
);
2303 for (i
= 0; i
< ic
->nb_streams
; i
++)
2304 ic
->streams
[i
]->discard
= AVDISCARD_ALL
;
2306 st_index
[AVMEDIA_TYPE_VIDEO
] =
2307 av_find_best_stream(ic
, AVMEDIA_TYPE_VIDEO
,
2308 wanted_stream
[AVMEDIA_TYPE_VIDEO
], -1, NULL
, 0);
2310 st_index
[AVMEDIA_TYPE_AUDIO
] =
2311 av_find_best_stream(ic
, AVMEDIA_TYPE_AUDIO
,
2312 wanted_stream
[AVMEDIA_TYPE_AUDIO
],
2313 st_index
[AVMEDIA_TYPE_VIDEO
],
2316 st_index
[AVMEDIA_TYPE_SUBTITLE
] =
2317 av_find_best_stream(ic
, AVMEDIA_TYPE_SUBTITLE
,
2318 wanted_stream
[AVMEDIA_TYPE_SUBTITLE
],
2319 (st_index
[AVMEDIA_TYPE_AUDIO
] >= 0 ?
2320 st_index
[AVMEDIA_TYPE_AUDIO
] :
2321 st_index
[AVMEDIA_TYPE_VIDEO
]),
2324 av_dump_format(ic
, 0, is
->filename
, 0);
2327 /* open the streams */
2328 if (st_index
[AVMEDIA_TYPE_AUDIO
] >= 0) {
2329 stream_component_open(is
, st_index
[AVMEDIA_TYPE_AUDIO
]);
2333 if (st_index
[AVMEDIA_TYPE_VIDEO
] >= 0) {
2334 ret
= stream_component_open(is
, st_index
[AVMEDIA_TYPE_VIDEO
]);
2336 is
->refresh_tid
= SDL_CreateThread(refresh_thread
, is
);
2338 if (!display_disable
)
2342 if (st_index
[AVMEDIA_TYPE_SUBTITLE
] >= 0) {
2343 stream_component_open(is
, st_index
[AVMEDIA_TYPE_SUBTITLE
]);
2346 if (is
->video_stream
< 0 && is
->audio_stream
< 0) {
2347 fprintf(stderr
, "%s: could not open codecs\n", is
->filename
);
2353 if (is
->abort_request
)
2355 if (is
->paused
!= is
->last_paused
) {
2356 is
->last_paused
= is
->paused
;
2358 is
->read_pause_return
= av_read_pause(ic
);
2362 #if CONFIG_RTSP_DEMUXER
2363 if (is
->paused
&& !strcmp(ic
->iformat
->name
, "rtsp")) {
2364 /* wait 10 ms to avoid trying to get another packet */
2371 int64_t seek_target
= is
->seek_pos
;
2372 int64_t seek_min
= is
->seek_rel
> 0 ? seek_target
- is
->seek_rel
+ 2: INT64_MIN
;
2373 int64_t seek_max
= is
->seek_rel
< 0 ? seek_target
- is
->seek_rel
- 2: INT64_MAX
;
2374 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2375 // of the seek_pos/seek_rel variables
2377 ret
= avformat_seek_file(is
->ic
, -1, seek_min
, seek_target
, seek_max
, is
->seek_flags
);
2379 fprintf(stderr
, "%s: error while seeking\n", is
->ic
->filename
);
2381 if (is
->audio_stream
>= 0) {
2382 packet_queue_flush(&is
->audioq
);
2383 packet_queue_put(&is
->audioq
, &flush_pkt
);
2385 if (is
->subtitle_stream
>= 0) {
2386 packet_queue_flush(&is
->subtitleq
);
2387 packet_queue_put(&is
->subtitleq
, &flush_pkt
);
2389 if (is
->video_stream
>= 0) {
2390 packet_queue_flush(&is
->videoq
);
2391 packet_queue_put(&is
->videoq
, &flush_pkt
);
2398 /* if the queue are full, no need to read more */
2399 if (!infinite_buffer
&&
2400 (is
->audioq
.size
+ is
->videoq
.size
+ is
->subtitleq
.size
> MAX_QUEUE_SIZE
2401 || ( (is
->audioq
.size
> MIN_AUDIOQ_SIZE
|| is
->audio_stream
< 0)
2402 && (is
->videoq
.nb_packets
> MIN_FRAMES
|| is
->video_stream
< 0)
2403 && (is
->subtitleq
.nb_packets
> MIN_FRAMES
|| is
->subtitle_stream
< 0)))) {
2409 if (is
->video_stream
>= 0) {
2410 av_init_packet(pkt
);
2413 pkt
->stream_index
= is
->video_stream
;
2414 packet_queue_put(&is
->videoq
, pkt
);
2416 if (is
->audio_stream
>= 0 &&
2417 is
->audio_st
->codec
->codec
->capabilities
& CODEC_CAP_DELAY
) {
2418 av_init_packet(pkt
);
2421 pkt
->stream_index
= is
->audio_stream
;
2422 packet_queue_put(&is
->audioq
, pkt
);
2425 if (is
->audioq
.size
+ is
->videoq
.size
+ is
->subtitleq
.size
== 0) {
2426 if (loop
!= 1 && (!loop
|| --loop
)) {
2427 stream_seek(cur_stream
, start_time
!= AV_NOPTS_VALUE
? start_time
: 0, 0, 0);
2428 } else if (autoexit
) {
2435 ret
= av_read_frame(ic
, pkt
);
2437 if (ret
== AVERROR_EOF
|| (ic
->pb
&& ic
->pb
->eof_reached
))
2439 if (ic
->pb
&& ic
->pb
->error
)
2441 SDL_Delay(100); /* wait for user event */
2444 /* check if packet is in play range specified by user, then queue, otherwise discard */
2445 pkt_in_play_range
= duration
== AV_NOPTS_VALUE
||
2446 (pkt
->pts
- ic
->streams
[pkt
->stream_index
]->start_time
) *
2447 av_q2d(ic
->streams
[pkt
->stream_index
]->time_base
) -
2448 (double)(start_time
!= AV_NOPTS_VALUE
? start_time
: 0) / 1000000
2449 <= ((double)duration
/ 1000000);
2450 if (pkt
->stream_index
== is
->audio_stream
&& pkt_in_play_range
) {
2451 packet_queue_put(&is
->audioq
, pkt
);
2452 } else if (pkt
->stream_index
== is
->video_stream
&& pkt_in_play_range
) {
2453 packet_queue_put(&is
->videoq
, pkt
);
2454 } else if (pkt
->stream_index
== is
->subtitle_stream
&& pkt_in_play_range
) {
2455 packet_queue_put(&is
->subtitleq
, pkt
);
2457 av_free_packet(pkt
);
2460 /* wait until the end */
2461 while (!is
->abort_request
) {
2467 /* disable interrupting */
2468 global_video_state
= NULL
;
2470 /* close each stream */
2471 if (is
->audio_stream
>= 0)
2472 stream_component_close(is
, is
->audio_stream
);
2473 if (is
->video_stream
>= 0)
2474 stream_component_close(is
, is
->video_stream
);
2475 if (is
->subtitle_stream
>= 0)
2476 stream_component_close(is
, is
->subtitle_stream
);
2478 avformat_close_input(&is
->ic
);
2484 event
.type
= FF_QUIT_EVENT
;
2485 event
.user
.data1
= is
;
2486 SDL_PushEvent(&event
);
2491 static VideoState
*stream_open(const char *filename
, AVInputFormat
*iformat
)
2495 is
= av_mallocz(sizeof(VideoState
));
2498 av_strlcpy(is
->filename
, filename
, sizeof(is
->filename
));
2499 is
->iformat
= iformat
;
2503 /* start video display */
2504 is
->pictq_mutex
= SDL_CreateMutex();
2505 is
->pictq_cond
= SDL_CreateCond();
2507 is
->subpq_mutex
= SDL_CreateMutex();
2508 is
->subpq_cond
= SDL_CreateCond();
2510 is
->av_sync_type
= av_sync_type
;
2511 is
->parse_tid
= SDL_CreateThread(decode_thread
, is
);
2512 if (!is
->parse_tid
) {
2519 static void stream_cycle_channel(VideoState
*is
, int codec_type
)
2521 AVFormatContext
*ic
= is
->ic
;
2522 int start_index
, stream_index
;
2525 if (codec_type
== AVMEDIA_TYPE_VIDEO
)
2526 start_index
= is
->video_stream
;
2527 else if (codec_type
== AVMEDIA_TYPE_AUDIO
)
2528 start_index
= is
->audio_stream
;
2530 start_index
= is
->subtitle_stream
;
2531 if (start_index
< (codec_type
== AVMEDIA_TYPE_SUBTITLE
? -1 : 0))
2533 stream_index
= start_index
;
2535 if (++stream_index
>= is
->ic
->nb_streams
)
2537 if (codec_type
== AVMEDIA_TYPE_SUBTITLE
)
2544 if (stream_index
== start_index
)
2546 st
= ic
->streams
[stream_index
];
2547 if (st
->codec
->codec_type
== codec_type
) {
2548 /* check that parameters are OK */
2549 switch (codec_type
) {
2550 case AVMEDIA_TYPE_AUDIO
:
2551 if (st
->codec
->sample_rate
!= 0 &&
2552 st
->codec
->channels
!= 0)
2555 case AVMEDIA_TYPE_VIDEO
:
2556 case AVMEDIA_TYPE_SUBTITLE
:
2564 stream_component_close(is
, start_index
);
2565 stream_component_open(is
, stream_index
);
2569 static void toggle_full_screen(void)
2571 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2572 /* OS X needs to empty the picture_queue */
2574 for (i
= 0; i
< VIDEO_PICTURE_QUEUE_SIZE
; i
++)
2575 cur_stream
->pictq
[i
].reallocate
= 1;
2577 is_full_screen
= !is_full_screen
;
2578 video_open(cur_stream
);
2581 static void toggle_pause(void)
2584 stream_pause(cur_stream
);
2588 static void step_to_next_frame(void)
2591 /* if the stream is paused unpause it, then step */
2592 if (cur_stream
->paused
)
2593 stream_pause(cur_stream
);
2598 static void toggle_audio_display(void)
2601 int bgcolor
= SDL_MapRGB(screen
->format
, 0x00, 0x00, 0x00);
2602 cur_stream
->show_audio
= (cur_stream
->show_audio
+ 1) % 3;
2603 fill_rectangle(screen
,
2604 cur_stream
->xleft
, cur_stream
->ytop
, cur_stream
->width
, cur_stream
->height
,
2606 SDL_UpdateRect(screen
, cur_stream
->xleft
, cur_stream
->ytop
, cur_stream
->width
, cur_stream
->height
);
2610 /* handle an event sent by the GUI */
2611 static void event_loop(void)
2614 double incr
, pos
, frac
;
2618 SDL_WaitEvent(&event
);
2619 switch (event
.type
) {
2621 if (exit_on_keydown
) {
2625 switch (event
.key
.keysym
.sym
) {
2631 toggle_full_screen();
2637 case SDLK_s
: // S: Step to next frame
2638 step_to_next_frame();
2642 stream_cycle_channel(cur_stream
, AVMEDIA_TYPE_AUDIO
);
2646 stream_cycle_channel(cur_stream
, AVMEDIA_TYPE_VIDEO
);
2650 stream_cycle_channel(cur_stream
, AVMEDIA_TYPE_SUBTITLE
);
2653 toggle_audio_display();
2668 if (seek_by_bytes
) {
2669 if (cur_stream
->video_stream
>= 0 && cur_stream
->video_current_pos
>= 0) {
2670 pos
= cur_stream
->video_current_pos
;
2671 } else if (cur_stream
->audio_stream
>= 0 && cur_stream
->audio_pkt
.pos
>= 0) {
2672 pos
= cur_stream
->audio_pkt
.pos
;
2674 pos
= avio_tell(cur_stream
->ic
->pb
);
2675 if (cur_stream
->ic
->bit_rate
)
2676 incr
*= cur_stream
->ic
->bit_rate
/ 8.0;
2680 stream_seek(cur_stream
, pos
, incr
, 1);
2682 pos
= get_master_clock(cur_stream
);
2684 stream_seek(cur_stream
, (int64_t)(pos
* AV_TIME_BASE
), (int64_t)(incr
* AV_TIME_BASE
), 0);
2692 case SDL_MOUSEBUTTONDOWN
:
2693 if (exit_on_mousedown
) {
2697 case SDL_MOUSEMOTION
:
2698 if (event
.type
== SDL_MOUSEBUTTONDOWN
) {
2701 if (event
.motion
.state
!= SDL_PRESSED
)
2706 if (seek_by_bytes
|| cur_stream
->ic
->duration
<= 0) {
2707 uint64_t size
= avio_size(cur_stream
->ic
->pb
);
2708 stream_seek(cur_stream
, size
*x
/cur_stream
->width
, 0, 1);
2712 int tns
, thh
, tmm
, tss
;
2713 tns
= cur_stream
->ic
->duration
/ 1000000LL;
2715 tmm
= (tns
% 3600) / 60;
2717 frac
= x
/ cur_stream
->width
;
2720 mm
= (ns
% 3600) / 60;
2722 fprintf(stderr
, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac
*100,
2723 hh
, mm
, ss
, thh
, tmm
, tss
);
2724 ts
= frac
* cur_stream
->ic
->duration
;
2725 if (cur_stream
->ic
->start_time
!= AV_NOPTS_VALUE
)
2726 ts
+= cur_stream
->ic
->start_time
;
2727 stream_seek(cur_stream
, ts
, 0, 0);
2731 case SDL_VIDEORESIZE
:
2733 screen
= SDL_SetVideoMode(event
.resize
.w
, event
.resize
.h
, 0,
2734 SDL_HWSURFACE
|SDL_RESIZABLE
|SDL_ASYNCBLIT
|SDL_HWACCEL
);
2735 screen_width
= cur_stream
->width
= event
.resize
.w
;
2736 screen_height
= cur_stream
->height
= event
.resize
.h
;
2743 case FF_ALLOC_EVENT
:
2744 video_open(event
.user
.data1
);
2745 alloc_picture(event
.user
.data1
);
2747 case FF_REFRESH_EVENT
:
2748 video_refresh_timer(event
.user
.data1
);
2749 cur_stream
->refresh
= 0;
2757 static int opt_frame_size(void *optctx
, const char *opt
, const char *arg
)
2759 av_log(NULL
, AV_LOG_ERROR
,
2760 "Option '%s' has been removed, use private format options instead\n", opt
);
2761 return AVERROR(EINVAL
);
2764 static int opt_width(void *optctx
, const char *opt
, const char *arg
)
2766 screen_width
= parse_number_or_die(opt
, arg
, OPT_INT64
, 1, INT_MAX
);
2770 static int opt_height(void *optctx
, const char *opt
, const char *arg
)
2772 screen_height
= parse_number_or_die(opt
, arg
, OPT_INT64
, 1, INT_MAX
);
2776 static int opt_format(void *optctx
, const char *opt
, const char *arg
)
2778 file_iformat
= av_find_input_format(arg
);
2779 if (!file_iformat
) {
2780 fprintf(stderr
, "Unknown input format: %s\n", arg
);
2781 return AVERROR(EINVAL
);
2786 static int opt_frame_pix_fmt(void *optctx
, const char *opt
, const char *arg
)
2788 av_log(NULL
, AV_LOG_ERROR
,
2789 "Option '%s' has been removed, use private format options instead\n", opt
);
2790 return AVERROR(EINVAL
);
2793 static int opt_sync(void *optctx
, const char *opt
, const char *arg
)
2795 if (!strcmp(arg
, "audio"))
2796 av_sync_type
= AV_SYNC_AUDIO_MASTER
;
2797 else if (!strcmp(arg
, "video"))
2798 av_sync_type
= AV_SYNC_VIDEO_MASTER
;
2799 else if (!strcmp(arg
, "ext"))
2800 av_sync_type
= AV_SYNC_EXTERNAL_CLOCK
;
2802 fprintf(stderr
, "Unknown value for %s: %s\n", opt
, arg
);
2808 static int opt_seek(void *optctx
, const char *opt
, const char *arg
)
2810 start_time
= parse_time_or_die(opt
, arg
, 1);
2814 static int opt_duration(void *optctx
, const char *opt
, const char *arg
)
2816 duration
= parse_time_or_die(opt
, arg
, 1);
2820 static int opt_debug(void *optctx
, const char *opt
, const char *arg
)
2822 av_log_set_level(99);
2823 debug
= parse_number_or_die(opt
, arg
, OPT_INT64
, 0, INT_MAX
);
2827 static int opt_vismv(void *optctx
, const char *opt
, const char *arg
)
2829 debug_mv
= parse_number_or_die(opt
, arg
, OPT_INT64
, INT_MIN
, INT_MAX
);
2833 static const OptionDef options
[] = {
2834 #include "cmdutils_common_opts.h"
2835 { "x", HAS_ARG
, { .func_arg
= opt_width
}, "force displayed width", "width" },
2836 { "y", HAS_ARG
, { .func_arg
= opt_height
}, "force displayed height", "height" },
2837 { "s", HAS_ARG
| OPT_VIDEO
, { .func_arg
= opt_frame_size
}, "set frame size (WxH or abbreviation)", "size" },
2838 { "fs", OPT_BOOL
, { &is_full_screen
}, "force full screen" },
2839 { "an", OPT_BOOL
, { &audio_disable
}, "disable audio" },
2840 { "vn", OPT_BOOL
, { &video_disable
}, "disable video" },
2841 { "ast", OPT_INT
| HAS_ARG
| OPT_EXPERT
, { &wanted_stream
[AVMEDIA_TYPE_AUDIO
] }, "select desired audio stream", "stream_number" },
2842 { "vst", OPT_INT
| HAS_ARG
| OPT_EXPERT
, { &wanted_stream
[AVMEDIA_TYPE_VIDEO
] }, "select desired video stream", "stream_number" },
2843 { "sst", OPT_INT
| HAS_ARG
| OPT_EXPERT
, { &wanted_stream
[AVMEDIA_TYPE_SUBTITLE
] }, "select desired subtitle stream", "stream_number" },
2844 { "ss", HAS_ARG
, { .func_arg
= opt_seek
}, "seek to a given position in seconds", "pos" },
2845 { "t", HAS_ARG
, { .func_arg
= opt_duration
}, "play \"duration\" seconds of audio/video", "duration" },
2846 { "bytes", OPT_INT
| HAS_ARG
, { &seek_by_bytes
}, "seek by bytes 0=off 1=on -1=auto", "val" },
2847 { "nodisp", OPT_BOOL
, { &display_disable
}, "disable graphical display" },
2848 { "f", HAS_ARG
, { .func_arg
= opt_format
}, "force format", "fmt" },
2849 { "pix_fmt", HAS_ARG
| OPT_EXPERT
| OPT_VIDEO
, { .func_arg
= opt_frame_pix_fmt
}, "set pixel format", "format" },
2850 { "stats", OPT_BOOL
| OPT_EXPERT
, { &show_status
}, "show status", "" },
2851 { "debug", HAS_ARG
| OPT_EXPERT
, { .func_arg
= opt_debug
}, "print specific debug info", "" },
2852 { "bug", OPT_INT
| HAS_ARG
| OPT_EXPERT
, { &workaround_bugs
}, "workaround bugs", "" },
2853 { "vismv", HAS_ARG
| OPT_EXPERT
, { .func_arg
= opt_vismv
}, "visualize motion vectors", "" },
2854 { "fast", OPT_BOOL
| OPT_EXPERT
, { &fast
}, "non spec compliant optimizations", "" },
2855 { "genpts", OPT_BOOL
| OPT_EXPERT
, { &genpts
}, "generate pts", "" },
2856 { "drp", OPT_INT
| HAS_ARG
| OPT_EXPERT
, { &decoder_reorder_pts
}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2857 { "skiploop", OPT_INT
| HAS_ARG
| OPT_EXPERT
, { &skip_loop_filter
}, "", "" },
2858 { "skipframe", OPT_INT
| HAS_ARG
| OPT_EXPERT
, { &skip_frame
}, "", "" },
2859 { "skipidct", OPT_INT
| HAS_ARG
| OPT_EXPERT
, { &skip_idct
}, "", "" },
2860 { "idct", OPT_INT
| HAS_ARG
| OPT_EXPERT
, { &idct
}, "set idct algo", "algo" },
2861 { "ec", OPT_INT
| HAS_ARG
| OPT_EXPERT
, { &error_concealment
}, "set error concealment options", "bit_mask" },
2862 { "sync", HAS_ARG
| OPT_EXPERT
, { .func_arg
= opt_sync
}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2863 { "autoexit", OPT_BOOL
| OPT_EXPERT
, { &autoexit
}, "exit at the end", "" },
2864 { "exitonkeydown", OPT_BOOL
| OPT_EXPERT
, { &exit_on_keydown
}, "exit on key down", "" },
2865 { "exitonmousedown", OPT_BOOL
| OPT_EXPERT
, { &exit_on_mousedown
}, "exit on mouse down", "" },
2866 { "loop", OPT_INT
| HAS_ARG
| OPT_EXPERT
, { &loop
}, "set number of times the playback shall be looped", "loop count" },
2867 { "framedrop", OPT_BOOL
| OPT_EXPERT
, { &framedrop
}, "drop frames when cpu is too slow", "" },
2868 { "infbuf", OPT_BOOL
| OPT_EXPERT
, { &infinite_buffer
}, "don't limit the input buffer size (useful with realtime streams)", "" },
2869 { "window_title", OPT_STRING
| HAS_ARG
, { &window_title
}, "set window title", "window title" },
2871 { "vf", OPT_STRING
| HAS_ARG
, { &vfilters
}, "video filters", "filter list" },
2873 { "rdftspeed", OPT_INT
| HAS_ARG
| OPT_AUDIO
| OPT_EXPERT
, { &rdftspeed
}, "rdft speed", "msecs" },
2874 { "default", HAS_ARG
| OPT_AUDIO
| OPT_VIDEO
| OPT_EXPERT
, { opt_default
}, "generic catch all option", "" },
2875 { "i", 0, { NULL
}, "avconv compatibility dummy option", ""},
2879 static void show_usage(void)
2881 printf("Simple media player\n");
2882 printf("usage: %s [options] input_file\n", program_name
);
2886 void show_help_default(const char *opt
, const char *arg
)
2888 av_log_set_callback(log_callback_help
);
2890 show_help_options(options
, "Main options:", 0, OPT_EXPERT
, 0);
2891 show_help_options(options
, "Advanced options:", OPT_EXPERT
, 0, 0);
2893 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM
);
2894 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM
);
2895 #if !CONFIG_AVFILTER
2896 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM
);
2898 printf("\nWhile playing:\n"
2900 "f toggle full screen\n"
2902 "a cycle audio channel\n"
2903 "v cycle video channel\n"
2904 "t cycle subtitle channel\n"
2905 "w show audio waves\n"
2906 "s activate frame-step mode\n"
2907 "left/right seek backward/forward 10 seconds\n"
2908 "down/up seek backward/forward 1 minute\n"
2909 "mouse click seek to percentage in file corresponding to fraction of width\n"
2913 static void opt_input_file(void *optctx
, const char *filename
)
2915 if (input_filename
) {
2916 fprintf(stderr
, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
2917 filename
, input_filename
);
2920 if (!strcmp(filename
, "-"))
2922 input_filename
= filename
;
2925 /* Called from the main */
2926 int main(int argc
, char **argv
)
2930 av_log_set_flags(AV_LOG_SKIP_REPEATED
);
2931 parse_loglevel(argc
, argv
, options
);
2933 /* register all codecs, demux and protocols */
2934 avcodec_register_all();
2936 avdevice_register_all();
2939 avfilter_register_all();
2942 avformat_network_init();
2948 parse_options(NULL
, argc
, argv
, options
, opt_input_file
);
2950 if (!input_filename
) {
2952 fprintf(stderr
, "An input file must be specified\n");
2953 fprintf(stderr
, "Use -h to get full help or, even better, run 'man %s'\n", program_name
);
2957 if (display_disable
) {
2960 flags
= SDL_INIT_VIDEO
| SDL_INIT_AUDIO
| SDL_INIT_TIMER
;
2961 #if !defined(__MINGW32__) && !defined(__APPLE__)
2962 flags
|= SDL_INIT_EVENTTHREAD
; /* Not supported on Windows or Mac OS X */
2964 if (SDL_Init (flags
)) {
2965 fprintf(stderr
, "Could not initialize SDL - %s\n", SDL_GetError());
2969 if (!display_disable
) {
2970 #if HAVE_SDL_VIDEO_SIZE
2971 const SDL_VideoInfo
*vi
= SDL_GetVideoInfo();
2972 fs_screen_width
= vi
->current_w
;
2973 fs_screen_height
= vi
->current_h
;
2977 SDL_EventState(SDL_ACTIVEEVENT
, SDL_IGNORE
);
2978 SDL_EventState(SDL_SYSWMEVENT
, SDL_IGNORE
);
2979 SDL_EventState(SDL_USEREVENT
, SDL_IGNORE
);
2981 av_init_packet(&flush_pkt
);
2982 flush_pkt
.data
= "FLUSH";
2984 cur_stream
= stream_open(input_filename
, file_iformat
);