2 * FFplay : Simple Media Player based on the FFmpeg libraries
3 * Copyright (c) 2003 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg 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 * FFmpeg 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 FFmpeg; 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/pixdesc.h"
28 #include "libavformat/avformat.h"
29 #include "libavdevice/avdevice.h"
30 #include "libswscale/swscale.h"
31 #include "libavcodec/audioconvert.h"
32 #include "libavcodec/colorspace.h"
33 #include "libavcodec/opt.h"
34 #include "libavcodec/avfft.h"
37 # include "libavfilter/avfilter.h"
38 # include "libavfilter/avfiltergraph.h"
39 # include "libavfilter/graphparser.h"
45 #include <SDL_thread.h>
48 #undef main /* We don't want SDL to override our main() */
54 const char program_name
[] = "FFplay";
55 const int program_birth_year
= 2003;
59 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
60 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
63 /* SDL audio buffer size, in samples. Should be small to have precise
64 A/V sync as SDL does not have hardware buffer fullness info. */
65 #define SDL_AUDIO_BUFFER_SIZE 1024
67 /* no AV sync correction is done if below the AV sync threshold */
68 #define AV_SYNC_THRESHOLD 0.01
69 /* no AV correction is done if too big error */
70 #define AV_NOSYNC_THRESHOLD 10.0
72 #define FRAME_SKIP_FACTOR 0.05
74 /* maximum audio speed change to get correct sync */
75 #define SAMPLE_CORRECTION_PERCENT_MAX 10
77 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
78 #define AUDIO_DIFF_AVG_NB 20
80 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
81 #define SAMPLE_ARRAY_SIZE (2*65536)
84 static int sws_flags
= SWS_BICUBIC
;
87 typedef struct PacketQueue
{
88 AVPacketList
*first_pkt
, *last_pkt
;
96 #define VIDEO_PICTURE_QUEUE_SIZE 2
97 #define SUBPICTURE_QUEUE_SIZE 4
99 typedef struct VideoPicture
{
100 double pts
; ///<presentation time stamp for this picture
101 double target_clock
; ///<av_gettime() time at which this should be displayed ideally
102 int64_t pos
; ///<byte position in file
104 int width
, height
; /* source height & width */
106 enum PixelFormat pix_fmt
;
109 AVFilterPicRef
*picref
;
113 typedef struct SubPicture
{
114 double pts
; /* presentation time stamp for this picture */
119 AV_SYNC_AUDIO_MASTER
, /* default choice */
120 AV_SYNC_VIDEO_MASTER
,
121 AV_SYNC_EXTERNAL_CLOCK
, /* synchronize to an external clock */
124 typedef struct VideoState
{
125 SDL_Thread
*parse_tid
;
126 SDL_Thread
*video_tid
;
127 SDL_Thread
*refresh_tid
;
128 AVInputFormat
*iformat
;
137 int read_pause_return
;
139 int dtg_active_format
;
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 /* samples output by the codec. we reserve more space for avsync
157 DECLARE_ALIGNED(16,uint8_t,audio_buf1
)[(AVCODEC_MAX_AUDIO_FRAME_SIZE
* 3) / 2];
158 DECLARE_ALIGNED(16,uint8_t,audio_buf2
)[(AVCODEC_MAX_AUDIO_FRAME_SIZE
* 3) / 2];
160 unsigned int audio_buf_size
; /* in bytes */
161 int audio_buf_index
; /* in bytes */
162 AVPacket audio_pkt_temp
;
164 enum SampleFormat audio_src_fmt
;
165 AVAudioConvert
*reformat_ctx
;
167 int show_audio
; /* if true, display audio samples */
168 int16_t sample_array
[SAMPLE_ARRAY_SIZE
];
169 int sample_array_index
;
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)
193 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
195 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
;
209 int64_t last_dts_for_fault_detection
;
210 int64_t last_pts_for_fault_detection
;
213 AVFilterContext
*out_video_filter
; ///<the last filter in the video chain
217 float skip_frames_index
;
221 static void show_help(void);
222 static int audio_write_get_buf_size(VideoState
*is
);
224 /* options specified by the user */
225 static AVInputFormat
*file_iformat
;
226 static const char *input_filename
;
227 static int fs_screen_width
;
228 static int fs_screen_height
;
229 static int screen_width
= 0;
230 static int screen_height
= 0;
231 static int frame_width
= 0;
232 static int frame_height
= 0;
233 static enum PixelFormat frame_pix_fmt
= PIX_FMT_NONE
;
234 static int audio_disable
;
235 static int video_disable
;
236 static int wanted_stream
[CODEC_TYPE_NB
]={
237 [CODEC_TYPE_AUDIO
]=-1,
238 [CODEC_TYPE_VIDEO
]=-1,
239 [CODEC_TYPE_SUBTITLE
]=-1,
241 static int seek_by_bytes
=-1;
242 static int display_disable
;
243 static int show_status
= 1;
244 static int av_sync_type
= AV_SYNC_AUDIO_MASTER
;
245 static int64_t start_time
= AV_NOPTS_VALUE
;
246 static int debug
= 0;
247 static int debug_mv
= 0;
249 static int thread_count
= 1;
250 static int workaround_bugs
= 1;
252 static int genpts
= 0;
253 static int lowres
= 0;
254 static int idct
= FF_IDCT_AUTO
;
255 static enum AVDiscard skip_frame
= AVDISCARD_DEFAULT
;
256 static enum AVDiscard skip_idct
= AVDISCARD_DEFAULT
;
257 static enum AVDiscard skip_loop_filter
= AVDISCARD_DEFAULT
;
258 static int error_recognition
= FF_ER_CAREFUL
;
259 static int error_concealment
= 3;
260 static int decoder_reorder_pts
= -1;
262 static int framedrop
=1;
264 static int rdftspeed
=20;
266 static char *vfilters
= NULL
;
269 /* current context */
270 static int is_full_screen
;
271 static VideoState
*cur_stream
;
272 static int64_t audio_callback_time
;
274 static AVPacket flush_pkt
;
276 #define FF_ALLOC_EVENT (SDL_USEREVENT)
277 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
278 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
280 static SDL_Surface
*screen
;
282 static int packet_queue_put(PacketQueue
*q
, AVPacket
*pkt
);
284 /* packet queue handling */
285 static void packet_queue_init(PacketQueue
*q
)
287 memset(q
, 0, sizeof(PacketQueue
));
288 q
->mutex
= SDL_CreateMutex();
289 q
->cond
= SDL_CreateCond();
290 packet_queue_put(q
, &flush_pkt
);
293 static void packet_queue_flush(PacketQueue
*q
)
295 AVPacketList
*pkt
, *pkt1
;
297 SDL_LockMutex(q
->mutex
);
298 for(pkt
= q
->first_pkt
; pkt
!= NULL
; pkt
= pkt1
) {
300 av_free_packet(&pkt
->pkt
);
307 SDL_UnlockMutex(q
->mutex
);
310 static void packet_queue_end(PacketQueue
*q
)
312 packet_queue_flush(q
);
313 SDL_DestroyMutex(q
->mutex
);
314 SDL_DestroyCond(q
->cond
);
317 static int packet_queue_put(PacketQueue
*q
, AVPacket
*pkt
)
321 /* duplicate the packet */
322 if (pkt
!=&flush_pkt
&& av_dup_packet(pkt
) < 0)
325 pkt1
= av_malloc(sizeof(AVPacketList
));
332 SDL_LockMutex(q
->mutex
);
338 q
->last_pkt
->next
= pkt1
;
341 q
->size
+= pkt1
->pkt
.size
+ sizeof(*pkt1
);
342 /* XXX: should duplicate packet data in DV case */
343 SDL_CondSignal(q
->cond
);
345 SDL_UnlockMutex(q
->mutex
);
349 static void packet_queue_abort(PacketQueue
*q
)
351 SDL_LockMutex(q
->mutex
);
353 q
->abort_request
= 1;
355 SDL_CondSignal(q
->cond
);
357 SDL_UnlockMutex(q
->mutex
);
360 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
361 static int packet_queue_get(PacketQueue
*q
, AVPacket
*pkt
, int block
)
366 SDL_LockMutex(q
->mutex
);
369 if (q
->abort_request
) {
376 q
->first_pkt
= pkt1
->next
;
380 q
->size
-= pkt1
->pkt
.size
+ sizeof(*pkt1
);
389 SDL_CondWait(q
->cond
, q
->mutex
);
392 SDL_UnlockMutex(q
->mutex
);
396 static inline void fill_rectangle(SDL_Surface
*screen
,
397 int x
, int y
, int w
, int h
, int color
)
404 SDL_FillRect(screen
, &rect
, color
);
408 /* draw only the border of a rectangle */
409 void fill_border(VideoState
*s
, int x
, int y
, int w
, int h
, int color
)
413 /* fill the background */
417 w2
= s
->width
- (x
+ w
);
423 h2
= s
->height
- (y
+ h
);
426 fill_rectangle(screen
,
430 fill_rectangle(screen
,
431 s
->xleft
+ s
->width
- w2
, s
->ytop
,
434 fill_rectangle(screen
,
435 s
->xleft
+ w1
, s
->ytop
,
436 s
->width
- w1
- w2
, h1
,
438 fill_rectangle(screen
,
439 s
->xleft
+ w1
, s
->ytop
+ s
->height
- h2
,
440 s
->width
- w1
- w2
, h2
,
445 #define ALPHA_BLEND(a, oldp, newp, s)\
446 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
448 #define RGBA_IN(r, g, b, a, s)\
450 unsigned int v = ((const uint32_t *)(s))[0];\
451 a = (v >> 24) & 0xff;\
452 r = (v >> 16) & 0xff;\
453 g = (v >> 8) & 0xff;\
457 #define YUVA_IN(y, u, v, a, s, pal)\
459 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
460 a = (val >> 24) & 0xff;\
461 y = (val >> 16) & 0xff;\
462 u = (val >> 8) & 0xff;\
466 #define YUVA_OUT(d, y, u, v, a)\
468 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
474 static void blend_subrect(AVPicture
*dst
, const AVSubtitleRect
*rect
, int imgw
, int imgh
)
476 int wrap
, wrap3
, width2
, skip2
;
477 int y
, u
, v
, a
, u1
, v1
, a1
, w
, h
;
478 uint8_t *lum
, *cb
, *cr
;
481 int dstx
, dsty
, dstw
, dsth
;
483 dstw
= av_clip(rect
->w
, 0, imgw
);
484 dsth
= av_clip(rect
->h
, 0, imgh
);
485 dstx
= av_clip(rect
->x
, 0, imgw
- dstw
);
486 dsty
= av_clip(rect
->y
, 0, imgh
- dsth
);
487 lum
= dst
->data
[0] + dsty
* dst
->linesize
[0];
488 cb
= dst
->data
[1] + (dsty
>> 1) * dst
->linesize
[1];
489 cr
= dst
->data
[2] + (dsty
>> 1) * dst
->linesize
[2];
491 width2
= ((dstw
+ 1) >> 1) + (dstx
& ~dstw
& 1);
493 wrap
= dst
->linesize
[0];
494 wrap3
= rect
->pict
.linesize
[0];
495 p
= rect
->pict
.data
[0];
496 pal
= (const uint32_t *)rect
->pict
.data
[1]; /* Now in YCrCb! */
504 YUVA_IN(y
, u
, v
, a
, p
, pal
);
505 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
506 cb
[0] = ALPHA_BLEND(a
>> 2, cb
[0], u
, 0);
507 cr
[0] = ALPHA_BLEND(a
>> 2, cr
[0], v
, 0);
513 for(w
= dstw
- (dstx
& 1); w
>= 2; w
-= 2) {
514 YUVA_IN(y
, u
, v
, a
, p
, pal
);
518 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
520 YUVA_IN(y
, u
, v
, a
, p
+ BPP
, pal
);
524 lum
[1] = ALPHA_BLEND(a
, lum
[1], y
, 0);
525 cb
[0] = ALPHA_BLEND(a1
>> 2, cb
[0], u1
, 1);
526 cr
[0] = ALPHA_BLEND(a1
>> 2, cr
[0], v1
, 1);
533 YUVA_IN(y
, u
, v
, a
, p
, pal
);
534 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
535 cb
[0] = ALPHA_BLEND(a
>> 2, cb
[0], u
, 0);
536 cr
[0] = ALPHA_BLEND(a
>> 2, cr
[0], v
, 0);
540 p
+= wrap3
- dstw
* BPP
;
541 lum
+= wrap
- dstw
- dstx
;
542 cb
+= dst
->linesize
[1] - width2
- skip2
;
543 cr
+= dst
->linesize
[2] - width2
- skip2
;
545 for(h
= dsth
- (dsty
& 1); h
>= 2; h
-= 2) {
551 YUVA_IN(y
, u
, v
, a
, p
, pal
);
555 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
558 YUVA_IN(y
, u
, v
, a
, p
, pal
);
562 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
563 cb
[0] = ALPHA_BLEND(a1
>> 2, cb
[0], u1
, 1);
564 cr
[0] = ALPHA_BLEND(a1
>> 2, cr
[0], v1
, 1);
570 for(w
= dstw
- (dstx
& 1); w
>= 2; w
-= 2) {
571 YUVA_IN(y
, u
, v
, a
, p
, pal
);
575 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
577 YUVA_IN(y
, u
, v
, a
, p
+ BPP
, pal
);
581 lum
[1] = ALPHA_BLEND(a
, lum
[1], y
, 0);
585 YUVA_IN(y
, u
, v
, a
, p
, pal
);
589 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
591 YUVA_IN(y
, u
, v
, a
, p
+ BPP
, pal
);
595 lum
[1] = ALPHA_BLEND(a
, lum
[1], y
, 0);
597 cb
[0] = ALPHA_BLEND(a1
>> 2, cb
[0], u1
, 2);
598 cr
[0] = ALPHA_BLEND(a1
>> 2, cr
[0], v1
, 2);
602 p
+= -wrap3
+ 2 * BPP
;
606 YUVA_IN(y
, u
, v
, a
, p
, pal
);
610 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
613 YUVA_IN(y
, u
, v
, a
, p
, pal
);
617 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
618 cb
[0] = ALPHA_BLEND(a1
>> 2, cb
[0], u1
, 1);
619 cr
[0] = ALPHA_BLEND(a1
>> 2, cr
[0], v1
, 1);
625 p
+= wrap3
+ (wrap3
- dstw
* BPP
);
626 lum
+= wrap
+ (wrap
- dstw
- dstx
);
627 cb
+= dst
->linesize
[1] - width2
- skip2
;
628 cr
+= dst
->linesize
[2] - width2
- skip2
;
630 /* handle odd height */
637 YUVA_IN(y
, u
, v
, a
, p
, pal
);
638 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
639 cb
[0] = ALPHA_BLEND(a
>> 2, cb
[0], u
, 0);
640 cr
[0] = ALPHA_BLEND(a
>> 2, cr
[0], v
, 0);
646 for(w
= dstw
- (dstx
& 1); w
>= 2; w
-= 2) {
647 YUVA_IN(y
, u
, v
, a
, p
, pal
);
651 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
653 YUVA_IN(y
, u
, v
, a
, p
+ BPP
, pal
);
657 lum
[1] = ALPHA_BLEND(a
, lum
[1], y
, 0);
658 cb
[0] = ALPHA_BLEND(a1
>> 2, cb
[0], u
, 1);
659 cr
[0] = ALPHA_BLEND(a1
>> 2, cr
[0], v
, 1);
666 YUVA_IN(y
, u
, v
, a
, p
, pal
);
667 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
668 cb
[0] = ALPHA_BLEND(a
>> 2, cb
[0], u
, 0);
669 cr
[0] = ALPHA_BLEND(a
>> 2, cr
[0], v
, 0);
674 static void free_subpicture(SubPicture
*sp
)
678 for (i
= 0; i
< sp
->sub
.num_rects
; i
++)
680 av_freep(&sp
->sub
.rects
[i
]->pict
.data
[0]);
681 av_freep(&sp
->sub
.rects
[i
]->pict
.data
[1]);
682 av_freep(&sp
->sub
.rects
[i
]);
685 av_free(sp
->sub
.rects
);
687 memset(&sp
->sub
, 0, sizeof(AVSubtitle
));
690 static void video_image_display(VideoState
*is
)
696 int width
, height
, x
, y
;
700 vp
= &is
->pictq
[is
->pictq_rindex
];
703 if (vp
->picref
->pixel_aspect
.num
== 0)
706 aspect_ratio
= av_q2d(vp
->picref
->pixel_aspect
);
709 /* XXX: use variable in the frame */
710 if (is
->video_st
->sample_aspect_ratio
.num
)
711 aspect_ratio
= av_q2d(is
->video_st
->sample_aspect_ratio
);
712 else if (is
->video_st
->codec
->sample_aspect_ratio
.num
)
713 aspect_ratio
= av_q2d(is
->video_st
->codec
->sample_aspect_ratio
);
717 if (aspect_ratio
<= 0.0)
719 aspect_ratio
*= (float)vp
->width
/ (float)vp
->height
;
720 /* if an active format is indicated, then it overrides the
723 if (is
->video_st
->codec
->dtg_active_format
!= is
->dtg_active_format
) {
724 is
->dtg_active_format
= is
->video_st
->codec
->dtg_active_format
;
725 printf("dtg_active_format=%d\n", is
->dtg_active_format
);
729 switch(is
->video_st
->codec
->dtg_active_format
) {
730 case FF_DTG_AFD_SAME
:
735 aspect_ratio
= 4.0 / 3.0;
737 case FF_DTG_AFD_16_9
:
738 aspect_ratio
= 16.0 / 9.0;
740 case FF_DTG_AFD_14_9
:
741 aspect_ratio
= 14.0 / 9.0;
743 case FF_DTG_AFD_4_3_SP_14_9
:
744 aspect_ratio
= 14.0 / 9.0;
746 case FF_DTG_AFD_16_9_SP_14_9
:
747 aspect_ratio
= 14.0 / 9.0;
749 case FF_DTG_AFD_SP_4_3
:
750 aspect_ratio
= 4.0 / 3.0;
757 if (is
->subpq_size
> 0)
759 sp
= &is
->subpq
[is
->subpq_rindex
];
761 if (vp
->pts
>= sp
->pts
+ ((float) sp
->sub
.start_display_time
/ 1000))
763 SDL_LockYUVOverlay (vp
->bmp
);
765 pict
.data
[0] = vp
->bmp
->pixels
[0];
766 pict
.data
[1] = vp
->bmp
->pixels
[2];
767 pict
.data
[2] = vp
->bmp
->pixels
[1];
769 pict
.linesize
[0] = vp
->bmp
->pitches
[0];
770 pict
.linesize
[1] = vp
->bmp
->pitches
[2];
771 pict
.linesize
[2] = vp
->bmp
->pitches
[1];
773 for (i
= 0; i
< sp
->sub
.num_rects
; i
++)
774 blend_subrect(&pict
, sp
->sub
.rects
[i
],
775 vp
->bmp
->w
, vp
->bmp
->h
);
777 SDL_UnlockYUVOverlay (vp
->bmp
);
783 /* XXX: we suppose the screen has a 1.0 pixel ratio */
785 width
= ((int)rint(height
* aspect_ratio
)) & ~1;
786 if (width
> is
->width
) {
788 height
= ((int)rint(width
/ aspect_ratio
)) & ~1;
790 x
= (is
->width
- width
) / 2;
791 y
= (is
->height
- height
) / 2;
792 if (!is
->no_background
) {
793 /* fill the background */
794 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
796 is
->no_background
= 0;
798 rect
.x
= is
->xleft
+ x
;
799 rect
.y
= is
->ytop
+ y
;
802 SDL_DisplayYUVOverlay(vp
->bmp
, &rect
);
805 fill_rectangle(screen
,
806 is
->xleft
, is
->ytop
, is
->width
, is
->height
,
807 QERGB(0x00, 0x00, 0x00));
812 static inline int compute_mod(int a
, int b
)
821 static void video_audio_display(VideoState
*s
)
823 int i
, i_start
, x
, y1
, y
, ys
, delay
, n
, nb_display_channels
;
824 int ch
, channels
, h
, h2
, bgcolor
, fgcolor
;
826 int rdft_bits
, nb_freq
;
828 for(rdft_bits
=1; (1<<rdft_bits
)<2*s
->height
; rdft_bits
++)
830 nb_freq
= 1<<(rdft_bits
-1);
832 /* compute display index : center on currently output samples */
833 channels
= s
->audio_st
->codec
->channels
;
834 nb_display_channels
= channels
;
836 int data_used
= s
->show_audio
==1 ? s
->width
: (2*nb_freq
);
838 delay
= audio_write_get_buf_size(s
);
841 /* to be more precise, we take into account the time spent since
842 the last buffer computation */
843 if (audio_callback_time
) {
844 time_diff
= av_gettime() - audio_callback_time
;
845 delay
-= (time_diff
* s
->audio_st
->codec
->sample_rate
) / 1000000;
848 delay
+= 2*data_used
;
849 if (delay
< data_used
)
852 i_start
= x
= compute_mod(s
->sample_array_index
- delay
* channels
, SAMPLE_ARRAY_SIZE
);
853 if(s
->show_audio
==1){
855 for(i
=0; i
<1000; i
+=channels
){
856 int idx
= (SAMPLE_ARRAY_SIZE
+ x
- i
) % SAMPLE_ARRAY_SIZE
;
857 int a
= s
->sample_array
[idx
];
858 int b
= s
->sample_array
[(idx
+ 4*channels
)%SAMPLE_ARRAY_SIZE
];
859 int c
= s
->sample_array
[(idx
+ 5*channels
)%SAMPLE_ARRAY_SIZE
];
860 int d
= s
->sample_array
[(idx
+ 9*channels
)%SAMPLE_ARRAY_SIZE
];
862 if(h
<score
&& (b
^c
)<0){
869 s
->last_i_start
= i_start
;
871 i_start
= s
->last_i_start
;
874 bgcolor
= SDL_MapRGB(screen
->format
, 0x00, 0x00, 0x00);
875 if(s
->show_audio
==1){
876 fill_rectangle(screen
,
877 s
->xleft
, s
->ytop
, s
->width
, s
->height
,
880 fgcolor
= SDL_MapRGB(screen
->format
, 0xff, 0xff, 0xff);
882 /* total height for one channel */
883 h
= s
->height
/ nb_display_channels
;
884 /* graph height / 2 */
886 for(ch
= 0;ch
< nb_display_channels
; ch
++) {
888 y1
= s
->ytop
+ ch
* h
+ (h
/ 2); /* position of center line */
889 for(x
= 0; x
< s
->width
; x
++) {
890 y
= (s
->sample_array
[i
] * h2
) >> 15;
897 fill_rectangle(screen
,
898 s
->xleft
+ x
, ys
, 1, y
,
901 if (i
>= SAMPLE_ARRAY_SIZE
)
902 i
-= SAMPLE_ARRAY_SIZE
;
906 fgcolor
= SDL_MapRGB(screen
->format
, 0x00, 0x00, 0xff);
908 for(ch
= 1;ch
< nb_display_channels
; ch
++) {
909 y
= s
->ytop
+ ch
* h
;
910 fill_rectangle(screen
,
911 s
->xleft
, y
, s
->width
, 1,
914 SDL_UpdateRect(screen
, s
->xleft
, s
->ytop
, s
->width
, s
->height
);
916 nb_display_channels
= FFMIN(nb_display_channels
, 2);
917 if(rdft_bits
!= s
->rdft_bits
){
918 av_rdft_end(s
->rdft
);
919 s
->rdft
= av_rdft_init(rdft_bits
, DFT_R2C
);
920 s
->rdft_bits
= rdft_bits
;
923 FFTSample data
[2][2*nb_freq
];
924 for(ch
= 0;ch
< nb_display_channels
; ch
++) {
926 for(x
= 0; x
< 2*nb_freq
; x
++) {
927 double w
= (x
-nb_freq
)*(1.0/nb_freq
);
928 data
[ch
][x
]= s
->sample_array
[i
]*(1.0-w
*w
);
930 if (i
>= SAMPLE_ARRAY_SIZE
)
931 i
-= SAMPLE_ARRAY_SIZE
;
933 av_rdft_calc(s
->rdft
, data
[ch
]);
935 //least efficient way to do this, we should of course directly access it but its more than fast enough
936 for(y
=0; y
<s
->height
; y
++){
937 double w
= 1/sqrt(nb_freq
);
938 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]));
939 int b
= sqrt(w
*sqrt(data
[1][2*y
+0]*data
[1][2*y
+0] + data
[1][2*y
+1]*data
[1][2*y
+1]));
942 fgcolor
= SDL_MapRGB(screen
->format
, a
, b
, (a
+b
)/2);
944 fill_rectangle(screen
,
945 s
->xpos
, s
->height
-y
, 1, 1,
949 SDL_UpdateRect(screen
, s
->xpos
, s
->ytop
, 1, s
->height
);
951 if(s
->xpos
>= s
->width
)
956 static int video_open(VideoState
*is
){
957 int flags
= SDL_HWSURFACE
|SDL_ASYNCBLIT
|SDL_HWACCEL
;
960 if(is_full_screen
) flags
|= SDL_FULLSCREEN
;
961 else flags
|= SDL_RESIZABLE
;
963 if (is_full_screen
&& fs_screen_width
) {
965 h
= fs_screen_height
;
966 } else if(!is_full_screen
&& screen_width
){
970 }else if (is
->out_video_filter
&& is
->out_video_filter
->inputs
[0]){
971 w
= is
->out_video_filter
->inputs
[0]->w
;
972 h
= is
->out_video_filter
->inputs
[0]->h
;
974 }else if (is
->video_st
&& is
->video_st
->codec
->width
){
975 w
= is
->video_st
->codec
->width
;
976 h
= is
->video_st
->codec
->height
;
982 if(screen
&& is
->width
== screen
->w
&& screen
->w
== w
983 && is
->height
== screen
->h
&& screen
->h
== h
)
987 screen
= SDL_SetVideoMode(w
, h
, 0, flags
);
989 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
990 screen
= SDL_SetVideoMode(w
, h
, 24, flags
);
993 fprintf(stderr
, "SDL: could not set video mode - exiting\n");
996 SDL_WM_SetCaption("FFplay", "FFplay");
998 is
->width
= screen
->w
;
999 is
->height
= screen
->h
;
1004 /* display the current picture, if any */
1005 static void video_display(VideoState
*is
)
1008 video_open(cur_stream
);
1009 if (is
->audio_st
&& is
->show_audio
)
1010 video_audio_display(is
);
1011 else if (is
->video_st
)
1012 video_image_display(is
);
1015 static int refresh_thread(void *opaque
)
1017 VideoState
*is
= opaque
;
1018 while(!is
->abort_request
){
1020 event
.type
= FF_REFRESH_EVENT
;
1021 event
.user
.data1
= opaque
;
1024 SDL_PushEvent(&event
);
1026 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
1031 /* get the current audio clock value */
1032 static double get_audio_clock(VideoState
*is
)
1035 int hw_buf_size
, bytes_per_sec
;
1036 pts
= is
->audio_clock
;
1037 hw_buf_size
= audio_write_get_buf_size(is
);
1040 bytes_per_sec
= is
->audio_st
->codec
->sample_rate
*
1041 2 * is
->audio_st
->codec
->channels
;
1044 pts
-= (double)hw_buf_size
/ bytes_per_sec
;
1048 /* get the current video clock value */
1049 static double get_video_clock(VideoState
*is
)
1052 return is
->video_current_pts
;
1054 return is
->video_current_pts_drift
+ av_gettime() / 1000000.0;
1058 /* get the current external clock value */
1059 static double get_external_clock(VideoState
*is
)
1063 return is
->external_clock
+ ((ti
- is
->external_clock_time
) * 1e-6);
1066 /* get the current master clock value */
1067 static double get_master_clock(VideoState
*is
)
1071 if (is
->av_sync_type
== AV_SYNC_VIDEO_MASTER
) {
1073 val
= get_video_clock(is
);
1075 val
= get_audio_clock(is
);
1076 } else if (is
->av_sync_type
== AV_SYNC_AUDIO_MASTER
) {
1078 val
= get_audio_clock(is
);
1080 val
= get_video_clock(is
);
1082 val
= get_external_clock(is
);
1087 /* seek in the stream */
1088 static void stream_seek(VideoState
*is
, int64_t pos
, int64_t rel
, int seek_by_bytes
)
1090 if (!is
->seek_req
) {
1093 is
->seek_flags
&= ~AVSEEK_FLAG_BYTE
;
1095 is
->seek_flags
|= AVSEEK_FLAG_BYTE
;
1100 /* pause or resume the video */
1101 static void stream_pause(VideoState
*is
)
1104 is
->frame_timer
+= av_gettime() / 1000000.0 + is
->video_current_pts_drift
- is
->video_current_pts
;
1105 if(is
->read_pause_return
!= AVERROR(ENOSYS
)){
1106 is
->video_current_pts
= is
->video_current_pts_drift
+ av_gettime() / 1000000.0;
1108 is
->video_current_pts_drift
= is
->video_current_pts
- av_gettime() / 1000000.0;
1110 is
->paused
= !is
->paused
;
1113 static double compute_target_time(double frame_current_pts
, VideoState
*is
)
1115 double delay
, sync_threshold
, diff
;
1117 /* compute nominal delay */
1118 delay
= frame_current_pts
- is
->frame_last_pts
;
1119 if (delay
<= 0 || delay
>= 10.0) {
1120 /* if incorrect delay, use previous one */
1121 delay
= is
->frame_last_delay
;
1123 is
->frame_last_delay
= delay
;
1125 is
->frame_last_pts
= frame_current_pts
;
1127 /* update delay to follow master synchronisation source */
1128 if (((is
->av_sync_type
== AV_SYNC_AUDIO_MASTER
&& is
->audio_st
) ||
1129 is
->av_sync_type
== AV_SYNC_EXTERNAL_CLOCK
)) {
1130 /* if video is slave, we try to correct big delays by
1131 duplicating or deleting a frame */
1132 diff
= get_video_clock(is
) - get_master_clock(is
);
1134 /* skip or repeat frame. We take into account the
1135 delay to compute the threshold. I still don't know
1136 if it is the best guess */
1137 sync_threshold
= FFMAX(AV_SYNC_THRESHOLD
, delay
);
1138 if (fabs(diff
) < AV_NOSYNC_THRESHOLD
) {
1139 if (diff
<= -sync_threshold
)
1141 else if (diff
>= sync_threshold
)
1145 is
->frame_timer
+= delay
;
1146 #if defined(DEBUG_SYNC)
1147 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1148 delay
, actual_delay
, frame_current_pts
, -diff
);
1151 return is
->frame_timer
;
1154 /* called to display each frame */
1155 static void video_refresh_timer(void *opaque
)
1157 VideoState
*is
= opaque
;
1160 SubPicture
*sp
, *sp2
;
1164 if (is
->pictq_size
== 0) {
1165 //nothing to do, no picture to display in the que
1167 double time
= av_gettime()/1000000.0;
1169 /* dequeue the picture */
1170 vp
= &is
->pictq
[is
->pictq_rindex
];
1172 if(time
< vp
->target_clock
)
1174 /* update current video pts */
1175 is
->video_current_pts
= vp
->pts
;
1176 is
->video_current_pts_drift
= is
->video_current_pts
- time
;
1177 is
->video_current_pos
= vp
->pos
;
1178 if(is
->pictq_size
> 1){
1179 VideoPicture
*nextvp
= &is
->pictq
[(is
->pictq_rindex
+1)%VIDEO_PICTURE_QUEUE_SIZE
];
1180 assert(nextvp
->target_clock
>= vp
->target_clock
);
1181 next_target
= nextvp
->target_clock
;
1183 next_target
= vp
->target_clock
+ is
->video_clock
- vp
->pts
; //FIXME pass durations cleanly
1185 if(framedrop
&& time
> next_target
){
1186 is
->skip_frames
*= 1.0 + FRAME_SKIP_FACTOR
;
1187 if(is
->pictq_size
> 1 || time
> next_target
+ 0.5){
1188 /* update queue size and signal for next picture */
1189 if (++is
->pictq_rindex
== VIDEO_PICTURE_QUEUE_SIZE
)
1190 is
->pictq_rindex
= 0;
1192 SDL_LockMutex(is
->pictq_mutex
);
1194 SDL_CondSignal(is
->pictq_cond
);
1195 SDL_UnlockMutex(is
->pictq_mutex
);
1200 if(is
->subtitle_st
) {
1201 if (is
->subtitle_stream_changed
) {
1202 SDL_LockMutex(is
->subpq_mutex
);
1204 while (is
->subpq_size
) {
1205 free_subpicture(&is
->subpq
[is
->subpq_rindex
]);
1207 /* update queue size and signal for next picture */
1208 if (++is
->subpq_rindex
== SUBPICTURE_QUEUE_SIZE
)
1209 is
->subpq_rindex
= 0;
1213 is
->subtitle_stream_changed
= 0;
1215 SDL_CondSignal(is
->subpq_cond
);
1216 SDL_UnlockMutex(is
->subpq_mutex
);
1218 if (is
->subpq_size
> 0) {
1219 sp
= &is
->subpq
[is
->subpq_rindex
];
1221 if (is
->subpq_size
> 1)
1222 sp2
= &is
->subpq
[(is
->subpq_rindex
+ 1) % SUBPICTURE_QUEUE_SIZE
];
1226 if ((is
->video_current_pts
> (sp
->pts
+ ((float) sp
->sub
.end_display_time
/ 1000)))
1227 || (sp2
&& is
->video_current_pts
> (sp2
->pts
+ ((float) sp2
->sub
.start_display_time
/ 1000))))
1229 free_subpicture(sp
);
1231 /* update queue size and signal for next picture */
1232 if (++is
->subpq_rindex
== SUBPICTURE_QUEUE_SIZE
)
1233 is
->subpq_rindex
= 0;
1235 SDL_LockMutex(is
->subpq_mutex
);
1237 SDL_CondSignal(is
->subpq_cond
);
1238 SDL_UnlockMutex(is
->subpq_mutex
);
1244 /* display picture */
1247 /* update queue size and signal for next picture */
1248 if (++is
->pictq_rindex
== VIDEO_PICTURE_QUEUE_SIZE
)
1249 is
->pictq_rindex
= 0;
1251 SDL_LockMutex(is
->pictq_mutex
);
1253 SDL_CondSignal(is
->pictq_cond
);
1254 SDL_UnlockMutex(is
->pictq_mutex
);
1256 } else if (is
->audio_st
) {
1257 /* draw the next audio frame */
1259 /* if only audio stream, then display the audio bars (better
1260 than nothing, just to test the implementation */
1262 /* display picture */
1266 static int64_t last_time
;
1268 int aqsize
, vqsize
, sqsize
;
1271 cur_time
= av_gettime();
1272 if (!last_time
|| (cur_time
- last_time
) >= 30000) {
1277 aqsize
= is
->audioq
.size
;
1279 vqsize
= is
->videoq
.size
;
1280 if (is
->subtitle_st
)
1281 sqsize
= is
->subtitleq
.size
;
1283 if (is
->audio_st
&& is
->video_st
)
1284 av_diff
= get_audio_clock(is
) - get_video_clock(is
);
1285 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64
"/%"PRId64
" \r",
1286 get_master_clock(is
), av_diff
, FFMAX(is
->skip_frames
-1, 0), aqsize
/ 1024, vqsize
/ 1024, sqsize
, is
->faulty_dts
, is
->faulty_pts
);
1288 last_time
= cur_time
;
1293 /* allocate a picture (needs to do that in main thread to avoid
1294 potential locking problems */
1295 static void alloc_picture(void *opaque
)
1297 VideoState
*is
= opaque
;
1300 vp
= &is
->pictq
[is
->pictq_windex
];
1303 SDL_FreeYUVOverlay(vp
->bmp
);
1307 avfilter_unref_pic(vp
->picref
);
1310 vp
->width
= is
->out_video_filter
->inputs
[0]->w
;
1311 vp
->height
= is
->out_video_filter
->inputs
[0]->h
;
1312 vp
->pix_fmt
= is
->out_video_filter
->inputs
[0]->format
;
1314 vp
->width
= is
->video_st
->codec
->width
;
1315 vp
->height
= is
->video_st
->codec
->height
;
1316 vp
->pix_fmt
= is
->video_st
->codec
->pix_fmt
;
1319 vp
->bmp
= SDL_CreateYUVOverlay(vp
->width
, vp
->height
,
1323 SDL_LockMutex(is
->pictq_mutex
);
1325 SDL_CondSignal(is
->pictq_cond
);
1326 SDL_UnlockMutex(is
->pictq_mutex
);
1331 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1333 static int queue_picture(VideoState
*is
, AVFrame
*src_frame
, double pts
, int64_t pos
)
1340 /* wait until we have space to put a new picture */
1341 SDL_LockMutex(is
->pictq_mutex
);
1343 if(is
->pictq_size
>=VIDEO_PICTURE_QUEUE_SIZE
&& !is
->refresh
)
1344 is
->skip_frames
= FFMAX(1.0 - FRAME_SKIP_FACTOR
, is
->skip_frames
* (1.0-FRAME_SKIP_FACTOR
));
1346 while (is
->pictq_size
>= VIDEO_PICTURE_QUEUE_SIZE
&&
1347 !is
->videoq
.abort_request
) {
1348 SDL_CondWait(is
->pictq_cond
, is
->pictq_mutex
);
1350 SDL_UnlockMutex(is
->pictq_mutex
);
1352 if (is
->videoq
.abort_request
)
1355 vp
= &is
->pictq
[is
->pictq_windex
];
1357 /* alloc or resize hardware picture buffer */
1360 vp
->width
!= is
->out_video_filter
->inputs
[0]->w
||
1361 vp
->height
!= is
->out_video_filter
->inputs
[0]->h
) {
1363 vp
->width
!= is
->video_st
->codec
->width
||
1364 vp
->height
!= is
->video_st
->codec
->height
) {
1370 /* the allocation must be done in the main thread to avoid
1372 event
.type
= FF_ALLOC_EVENT
;
1373 event
.user
.data1
= is
;
1374 SDL_PushEvent(&event
);
1376 /* wait until the picture is allocated */
1377 SDL_LockMutex(is
->pictq_mutex
);
1378 while (!vp
->allocated
&& !is
->videoq
.abort_request
) {
1379 SDL_CondWait(is
->pictq_cond
, is
->pictq_mutex
);
1381 SDL_UnlockMutex(is
->pictq_mutex
);
1383 if (is
->videoq
.abort_request
)
1387 /* if the frame is not skipped, then display it */
1392 avfilter_unref_pic(vp
->picref
);
1393 vp
->picref
= src_frame
->opaque
;
1396 /* get a pointer on the bitmap */
1397 SDL_LockYUVOverlay (vp
->bmp
);
1399 dst_pix_fmt
= PIX_FMT_YUV420P
;
1400 memset(&pict
,0,sizeof(AVPicture
));
1401 pict
.data
[0] = vp
->bmp
->pixels
[0];
1402 pict
.data
[1] = vp
->bmp
->pixels
[2];
1403 pict
.data
[2] = vp
->bmp
->pixels
[1];
1405 pict
.linesize
[0] = vp
->bmp
->pitches
[0];
1406 pict
.linesize
[1] = vp
->bmp
->pitches
[2];
1407 pict
.linesize
[2] = vp
->bmp
->pitches
[1];
1410 pict_src
.data
[0] = src_frame
->data
[0];
1411 pict_src
.data
[1] = src_frame
->data
[1];
1412 pict_src
.data
[2] = src_frame
->data
[2];
1414 pict_src
.linesize
[0] = src_frame
->linesize
[0];
1415 pict_src
.linesize
[1] = src_frame
->linesize
[1];
1416 pict_src
.linesize
[2] = src_frame
->linesize
[2];
1418 //FIXME use direct rendering
1419 av_picture_copy(&pict
, &pict_src
,
1420 vp
->pix_fmt
, vp
->width
, vp
->height
);
1422 sws_flags
= av_get_int(sws_opts
, "sws_flags", NULL
);
1423 is
->img_convert_ctx
= sws_getCachedContext(is
->img_convert_ctx
,
1424 vp
->width
, vp
->height
, vp
->pix_fmt
, vp
->width
, vp
->height
,
1425 dst_pix_fmt
, sws_flags
, NULL
, NULL
, NULL
);
1426 if (is
->img_convert_ctx
== NULL
) {
1427 fprintf(stderr
, "Cannot initialize the conversion context\n");
1430 sws_scale(is
->img_convert_ctx
, src_frame
->data
, src_frame
->linesize
,
1431 0, vp
->height
, pict
.data
, pict
.linesize
);
1433 /* update the bitmap content */
1434 SDL_UnlockYUVOverlay(vp
->bmp
);
1439 /* now we can update the picture count */
1440 if (++is
->pictq_windex
== VIDEO_PICTURE_QUEUE_SIZE
)
1441 is
->pictq_windex
= 0;
1442 SDL_LockMutex(is
->pictq_mutex
);
1443 vp
->target_clock
= compute_target_time(vp
->pts
, is
);
1446 SDL_UnlockMutex(is
->pictq_mutex
);
1452 * compute the exact PTS for the picture if it is omitted in the stream
1453 * @param pts1 the dts of the pkt / pts of the frame
1455 static int output_picture2(VideoState
*is
, AVFrame
*src_frame
, double pts1
, int64_t pos
)
1457 double frame_delay
, pts
;
1462 /* update video clock with pts, if present */
1463 is
->video_clock
= pts
;
1465 pts
= is
->video_clock
;
1467 /* update video clock for next frame */
1468 frame_delay
= av_q2d(is
->video_st
->codec
->time_base
);
1469 /* for MPEG2, the frame can be repeated, so we update the
1470 clock accordingly */
1471 frame_delay
+= src_frame
->repeat_pict
* (frame_delay
* 0.5);
1472 is
->video_clock
+= frame_delay
;
1474 #if defined(DEBUG_SYNC) && 0
1475 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1476 av_get_pict_type_char(src_frame
->pict_type
), pts
, pts1
);
1478 return queue_picture(is
, src_frame
, pts
, pos
);
1481 static int get_video_frame(VideoState
*is
, AVFrame
*frame
, int64_t *pts
, AVPacket
*pkt
)
1483 int len1
, got_picture
, i
;
1485 if (packet_queue_get(&is
->videoq
, pkt
, 1) < 0)
1488 if(pkt
->data
== flush_pkt
.data
){
1489 avcodec_flush_buffers(is
->video_st
->codec
);
1491 SDL_LockMutex(is
->pictq_mutex
);
1492 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1493 for(i
=0; i
<VIDEO_PICTURE_QUEUE_SIZE
; i
++){
1494 is
->pictq
[i
].target_clock
= 0;
1496 while (is
->pictq_size
&& !is
->videoq
.abort_request
) {
1497 SDL_CondWait(is
->pictq_cond
, is
->pictq_mutex
);
1499 is
->video_current_pos
= -1;
1500 SDL_UnlockMutex(is
->pictq_mutex
);
1502 is
->last_dts_for_fault_detection
=
1503 is
->last_pts_for_fault_detection
= INT64_MIN
;
1504 is
->frame_last_pts
= AV_NOPTS_VALUE
;
1505 is
->frame_last_delay
= 0;
1506 is
->frame_timer
= (double)av_gettime() / 1000000.0;
1508 is
->skip_frames_index
= 0;
1512 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1513 this packet, if any */
1514 is
->video_st
->codec
->reordered_opaque
= pkt
->pts
;
1515 len1
= avcodec_decode_video2(is
->video_st
->codec
,
1516 frame
, &got_picture
,
1520 if(pkt
->dts
!= AV_NOPTS_VALUE
){
1521 is
->faulty_dts
+= pkt
->dts
<= is
->last_dts_for_fault_detection
;
1522 is
->last_dts_for_fault_detection
= pkt
->dts
;
1524 if(frame
->reordered_opaque
!= AV_NOPTS_VALUE
){
1525 is
->faulty_pts
+= frame
->reordered_opaque
<= is
->last_pts_for_fault_detection
;
1526 is
->last_pts_for_fault_detection
= frame
->reordered_opaque
;
1530 if( ( decoder_reorder_pts
==1
1531 || (decoder_reorder_pts
&& is
->faulty_pts
<is
->faulty_dts
)
1532 || pkt
->dts
== AV_NOPTS_VALUE
)
1533 && frame
->reordered_opaque
!= AV_NOPTS_VALUE
)
1534 *pts
= frame
->reordered_opaque
;
1535 else if(pkt
->dts
!= AV_NOPTS_VALUE
)
1543 is
->skip_frames_index
+= 1;
1544 if(is
->skip_frames_index
>= is
->skip_frames
){
1545 is
->skip_frames_index
-= FFMAX(is
->skip_frames
, 1.0);
1559 static int input_init(AVFilterContext
*ctx
, const char *args
, void *opaque
)
1561 FilterPriv
*priv
= ctx
->priv
;
1562 if(!opaque
) return -1;
1565 priv
->frame
= avcodec_alloc_frame();
1570 static void input_uninit(AVFilterContext
*ctx
)
1572 FilterPriv
*priv
= ctx
->priv
;
1573 av_free(priv
->frame
);
1576 static int input_request_frame(AVFilterLink
*link
)
1578 FilterPriv
*priv
= link
->src
->priv
;
1579 AVFilterPicRef
*picref
;
1584 while (!(ret
= get_video_frame(priv
->is
, priv
->frame
, &pts
, &pkt
)))
1585 av_free_packet(&pkt
);
1589 /* FIXME: until I figure out how to hook everything up to the codec
1590 * right, we're just copying the entire frame. */
1591 picref
= avfilter_get_video_buffer(link
, AV_PERM_WRITE
, link
->w
, link
->h
);
1592 av_picture_copy((AVPicture
*)&picref
->data
, (AVPicture
*)priv
->frame
,
1593 picref
->pic
->format
, link
->w
, link
->h
);
1594 av_free_packet(&pkt
);
1597 picref
->pos
= pkt
.pos
;
1598 picref
->pixel_aspect
= priv
->is
->video_st
->codec
->sample_aspect_ratio
;
1599 avfilter_start_frame(link
, avfilter_ref_pic(picref
, ~0));
1600 avfilter_draw_slice(link
, 0, link
->h
, 1);
1601 avfilter_end_frame(link
);
1602 avfilter_unref_pic(picref
);
1607 static int input_query_formats(AVFilterContext
*ctx
)
1609 FilterPriv
*priv
= ctx
->priv
;
1610 enum PixelFormat pix_fmts
[] = {
1611 priv
->is
->video_st
->codec
->pix_fmt
, PIX_FMT_NONE
1614 avfilter_set_common_formats(ctx
, avfilter_make_format_list(pix_fmts
));
1618 static int input_config_props(AVFilterLink
*link
)
1620 FilterPriv
*priv
= link
->src
->priv
;
1621 AVCodecContext
*c
= priv
->is
->video_st
->codec
;
1624 link
->h
= c
->height
;
1629 static AVFilter input_filter
=
1631 .name
= "ffplay_input",
1633 .priv_size
= sizeof(FilterPriv
),
1636 .uninit
= input_uninit
,
1638 .query_formats
= input_query_formats
,
1640 .inputs
= (AVFilterPad
[]) {{ .name
= NULL
}},
1641 .outputs
= (AVFilterPad
[]) {{ .name
= "default",
1642 .type
= CODEC_TYPE_VIDEO
,
1643 .request_frame
= input_request_frame
,
1644 .config_props
= input_config_props
, },
1648 static void output_end_frame(AVFilterLink
*link
)
1652 static int output_query_formats(AVFilterContext
*ctx
)
1654 enum PixelFormat pix_fmts
[] = { PIX_FMT_YUV420P
, PIX_FMT_NONE
};
1656 avfilter_set_common_formats(ctx
, avfilter_make_format_list(pix_fmts
));
1660 static int get_filtered_video_frame(AVFilterContext
*ctx
, AVFrame
*frame
,
1661 int64_t *pts
, int64_t *pos
)
1663 AVFilterPicRef
*pic
;
1665 if(avfilter_request_frame(ctx
->inputs
[0]))
1667 if(!(pic
= ctx
->inputs
[0]->cur_pic
))
1669 ctx
->inputs
[0]->cur_pic
= NULL
;
1671 frame
->opaque
= pic
;
1675 memcpy(frame
->data
, pic
->data
, sizeof(frame
->data
));
1676 memcpy(frame
->linesize
, pic
->linesize
, sizeof(frame
->linesize
));
1681 static AVFilter output_filter
=
1683 .name
= "ffplay_output",
1685 .query_formats
= output_query_formats
,
1687 .inputs
= (AVFilterPad
[]) {{ .name
= "default",
1688 .type
= CODEC_TYPE_VIDEO
,
1689 .end_frame
= output_end_frame
,
1690 .min_perms
= AV_PERM_READ
, },
1692 .outputs
= (AVFilterPad
[]) {{ .name
= NULL
}},
1694 #endif /* CONFIG_AVFILTER */
1696 static int video_thread(void *arg
)
1698 VideoState
*is
= arg
;
1699 AVFrame
*frame
= avcodec_alloc_frame();
1700 int64_t pts_int
, pos
;
1705 AVFilterContext
*filt_src
= NULL
, *filt_out
= NULL
;
1706 AVFilterGraph
*graph
= av_mallocz(sizeof(AVFilterGraph
));
1707 graph
->scale_sws_opts
= av_strdup("sws_flags=bilinear");
1709 if(!(filt_src
= avfilter_open(&input_filter
, "src"))) goto the_end
;
1710 if(!(filt_out
= avfilter_open(&output_filter
, "out"))) goto the_end
;
1712 if(avfilter_init_filter(filt_src
, NULL
, is
)) goto the_end
;
1713 if(avfilter_init_filter(filt_out
, NULL
, frame
)) goto the_end
;
1717 AVFilterInOut
*outputs
= av_malloc(sizeof(AVFilterInOut
));
1718 AVFilterInOut
*inputs
= av_malloc(sizeof(AVFilterInOut
));
1720 outputs
->name
= av_strdup("in");
1721 outputs
->filter
= filt_src
;
1722 outputs
->pad_idx
= 0;
1723 outputs
->next
= NULL
;
1725 inputs
->name
= av_strdup("out");
1726 inputs
->filter
= filt_out
;
1727 inputs
->pad_idx
= 0;
1728 inputs
->next
= NULL
;
1730 if (avfilter_graph_parse(graph
, vfilters
, inputs
, outputs
, NULL
) < 0)
1732 av_freep(&vfilters
);
1734 if(avfilter_link(filt_src
, 0, filt_out
, 0) < 0) goto the_end
;
1736 avfilter_graph_add_filter(graph
, filt_src
);
1737 avfilter_graph_add_filter(graph
, filt_out
);
1739 if(avfilter_graph_check_validity(graph
, NULL
)) goto the_end
;
1740 if(avfilter_graph_config_formats(graph
, NULL
)) goto the_end
;
1741 if(avfilter_graph_config_links(graph
, NULL
)) goto the_end
;
1743 is
->out_video_filter
= filt_out
;
1747 #if !CONFIG_AVFILTER
1750 while (is
->paused
&& !is
->videoq
.abort_request
)
1753 ret
= get_filtered_video_frame(filt_out
, frame
, &pts_int
, &pos
);
1755 ret
= get_video_frame(is
, frame
, &pts_int
, &pkt
);
1758 if (ret
< 0) goto the_end
;
1763 pts
= pts_int
*av_q2d(is
->video_st
->time_base
);
1766 ret
= output_picture2(is
, frame
, pts
, pos
);
1768 ret
= output_picture2(is
, frame
, pts
, pkt
.pos
);
1769 av_free_packet(&pkt
);
1776 stream_pause(cur_stream
);
1780 avfilter_graph_destroy(graph
);
1787 static int subtitle_thread(void *arg
)
1789 VideoState
*is
= arg
;
1791 AVPacket pkt1
, *pkt
= &pkt1
;
1792 int len1
, got_subtitle
;
1795 int r
, g
, b
, y
, u
, v
, a
;
1798 while (is
->paused
&& !is
->subtitleq
.abort_request
) {
1801 if (packet_queue_get(&is
->subtitleq
, pkt
, 1) < 0)
1804 if(pkt
->data
== flush_pkt
.data
){
1805 avcodec_flush_buffers(is
->subtitle_st
->codec
);
1808 SDL_LockMutex(is
->subpq_mutex
);
1809 while (is
->subpq_size
>= SUBPICTURE_QUEUE_SIZE
&&
1810 !is
->subtitleq
.abort_request
) {
1811 SDL_CondWait(is
->subpq_cond
, is
->subpq_mutex
);
1813 SDL_UnlockMutex(is
->subpq_mutex
);
1815 if (is
->subtitleq
.abort_request
)
1818 sp
= &is
->subpq
[is
->subpq_windex
];
1820 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1821 this packet, if any */
1823 if (pkt
->pts
!= AV_NOPTS_VALUE
)
1824 pts
= av_q2d(is
->subtitle_st
->time_base
)*pkt
->pts
;
1826 len1
= avcodec_decode_subtitle2(is
->subtitle_st
->codec
,
1827 &sp
->sub
, &got_subtitle
,
1831 if (got_subtitle
&& sp
->sub
.format
== 0) {
1834 for (i
= 0; i
< sp
->sub
.num_rects
; i
++)
1836 for (j
= 0; j
< sp
->sub
.rects
[i
]->nb_colors
; j
++)
1838 RGBA_IN(r
, g
, b
, a
, (uint32_t*)sp
->sub
.rects
[i
]->pict
.data
[1] + j
);
1839 y
= RGB_TO_Y_CCIR(r
, g
, b
);
1840 u
= RGB_TO_U_CCIR(r
, g
, b
, 0);
1841 v
= RGB_TO_V_CCIR(r
, g
, b
, 0);
1842 YUVA_OUT((uint32_t*)sp
->sub
.rects
[i
]->pict
.data
[1] + j
, y
, u
, v
, a
);
1846 /* now we can update the picture count */
1847 if (++is
->subpq_windex
== SUBPICTURE_QUEUE_SIZE
)
1848 is
->subpq_windex
= 0;
1849 SDL_LockMutex(is
->subpq_mutex
);
1851 SDL_UnlockMutex(is
->subpq_mutex
);
1853 av_free_packet(pkt
);
1856 // stream_pause(cur_stream);
1862 /* copy samples for viewing in editor window */
1863 static void update_sample_display(VideoState
*is
, short *samples
, int samples_size
)
1865 int size
, len
, channels
;
1867 channels
= is
->audio_st
->codec
->channels
;
1869 size
= samples_size
/ sizeof(short);
1871 len
= SAMPLE_ARRAY_SIZE
- is
->sample_array_index
;
1874 memcpy(is
->sample_array
+ is
->sample_array_index
, samples
, len
* sizeof(short));
1876 is
->sample_array_index
+= len
;
1877 if (is
->sample_array_index
>= SAMPLE_ARRAY_SIZE
)
1878 is
->sample_array_index
= 0;
1883 /* return the new audio buffer size (samples can be added or deleted
1884 to get better sync if video or external master clock) */
1885 static int synchronize_audio(VideoState
*is
, short *samples
,
1886 int samples_size1
, double pts
)
1888 int n
, samples_size
;
1891 n
= 2 * is
->audio_st
->codec
->channels
;
1892 samples_size
= samples_size1
;
1894 /* if not master, then we try to remove or add samples to correct the clock */
1895 if (((is
->av_sync_type
== AV_SYNC_VIDEO_MASTER
&& is
->video_st
) ||
1896 is
->av_sync_type
== AV_SYNC_EXTERNAL_CLOCK
)) {
1897 double diff
, avg_diff
;
1898 int wanted_size
, min_size
, max_size
, nb_samples
;
1900 ref_clock
= get_master_clock(is
);
1901 diff
= get_audio_clock(is
) - ref_clock
;
1903 if (diff
< AV_NOSYNC_THRESHOLD
) {
1904 is
->audio_diff_cum
= diff
+ is
->audio_diff_avg_coef
* is
->audio_diff_cum
;
1905 if (is
->audio_diff_avg_count
< AUDIO_DIFF_AVG_NB
) {
1906 /* not enough measures to have a correct estimate */
1907 is
->audio_diff_avg_count
++;
1909 /* estimate the A-V difference */
1910 avg_diff
= is
->audio_diff_cum
* (1.0 - is
->audio_diff_avg_coef
);
1912 if (fabs(avg_diff
) >= is
->audio_diff_threshold
) {
1913 wanted_size
= samples_size
+ ((int)(diff
* is
->audio_st
->codec
->sample_rate
) * n
);
1914 nb_samples
= samples_size
/ n
;
1916 min_size
= ((nb_samples
* (100 - SAMPLE_CORRECTION_PERCENT_MAX
)) / 100) * n
;
1917 max_size
= ((nb_samples
* (100 + SAMPLE_CORRECTION_PERCENT_MAX
)) / 100) * n
;
1918 if (wanted_size
< min_size
)
1919 wanted_size
= min_size
;
1920 else if (wanted_size
> max_size
)
1921 wanted_size
= max_size
;
1923 /* add or remove samples to correction the synchro */
1924 if (wanted_size
< samples_size
) {
1925 /* remove samples */
1926 samples_size
= wanted_size
;
1927 } else if (wanted_size
> samples_size
) {
1928 uint8_t *samples_end
, *q
;
1932 nb
= (samples_size
- wanted_size
);
1933 samples_end
= (uint8_t *)samples
+ samples_size
- n
;
1934 q
= samples_end
+ n
;
1936 memcpy(q
, samples_end
, n
);
1940 samples_size
= wanted_size
;
1944 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1945 diff
, avg_diff
, samples_size
- samples_size1
,
1946 is
->audio_clock
, is
->video_clock
, is
->audio_diff_threshold
);
1950 /* too big difference : may be initial PTS errors, so
1952 is
->audio_diff_avg_count
= 0;
1953 is
->audio_diff_cum
= 0;
1957 return samples_size
;
1960 /* decode one audio frame and returns its uncompressed size */
1961 static int audio_decode_frame(VideoState
*is
, double *pts_ptr
)
1963 AVPacket
*pkt_temp
= &is
->audio_pkt_temp
;
1964 AVPacket
*pkt
= &is
->audio_pkt
;
1965 AVCodecContext
*dec
= is
->audio_st
->codec
;
1966 int n
, len1
, data_size
;
1970 /* NOTE: the audio packet can contain several frames */
1971 while (pkt_temp
->size
> 0) {
1972 data_size
= sizeof(is
->audio_buf1
);
1973 len1
= avcodec_decode_audio3(dec
,
1974 (int16_t *)is
->audio_buf1
, &data_size
,
1977 /* if error, we skip the frame */
1982 pkt_temp
->data
+= len1
;
1983 pkt_temp
->size
-= len1
;
1987 if (dec
->sample_fmt
!= is
->audio_src_fmt
) {
1988 if (is
->reformat_ctx
)
1989 av_audio_convert_free(is
->reformat_ctx
);
1990 is
->reformat_ctx
= av_audio_convert_alloc(SAMPLE_FMT_S16
, 1,
1991 dec
->sample_fmt
, 1, NULL
, 0);
1992 if (!is
->reformat_ctx
) {
1993 fprintf(stderr
, "Cannot convert %s sample format to %s sample format\n",
1994 avcodec_get_sample_fmt_name(dec
->sample_fmt
),
1995 avcodec_get_sample_fmt_name(SAMPLE_FMT_S16
));
1998 is
->audio_src_fmt
= dec
->sample_fmt
;
2001 if (is
->reformat_ctx
) {
2002 const void *ibuf
[6]= {is
->audio_buf1
};
2003 void *obuf
[6]= {is
->audio_buf2
};
2004 int istride
[6]= {av_get_bits_per_sample_format(dec
->sample_fmt
)/8};
2005 int ostride
[6]= {2};
2006 int len
= data_size
/istride
[0];
2007 if (av_audio_convert(is
->reformat_ctx
, obuf
, ostride
, ibuf
, istride
, len
)<0) {
2008 printf("av_audio_convert() failed\n");
2011 is
->audio_buf
= is
->audio_buf2
;
2012 /* FIXME: existing code assume that data_size equals framesize*channels*2
2013 remove this legacy cruft */
2016 is
->audio_buf
= is
->audio_buf1
;
2019 /* if no pts, then compute it */
2020 pts
= is
->audio_clock
;
2022 n
= 2 * dec
->channels
;
2023 is
->audio_clock
+= (double)data_size
/
2024 (double)(n
* dec
->sample_rate
);
2025 #if defined(DEBUG_SYNC)
2027 static double last_clock
;
2028 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2029 is
->audio_clock
- last_clock
,
2030 is
->audio_clock
, pts
);
2031 last_clock
= is
->audio_clock
;
2037 /* free the current packet */
2039 av_free_packet(pkt
);
2041 if (is
->paused
|| is
->audioq
.abort_request
) {
2045 /* read next packet */
2046 if (packet_queue_get(&is
->audioq
, pkt
, 1) < 0)
2048 if(pkt
->data
== flush_pkt
.data
){
2049 avcodec_flush_buffers(dec
);
2053 pkt_temp
->data
= pkt
->data
;
2054 pkt_temp
->size
= pkt
->size
;
2056 /* if update the audio clock with the pts */
2057 if (pkt
->pts
!= AV_NOPTS_VALUE
) {
2058 is
->audio_clock
= av_q2d(is
->audio_st
->time_base
)*pkt
->pts
;
2063 /* get the current audio output buffer size, in samples. With SDL, we
2064 cannot have a precise information */
2065 static int audio_write_get_buf_size(VideoState
*is
)
2067 return is
->audio_buf_size
- is
->audio_buf_index
;
2071 /* prepare a new audio buffer */
2072 static void sdl_audio_callback(void *opaque
, Uint8
*stream
, int len
)
2074 VideoState
*is
= opaque
;
2075 int audio_size
, len1
;
2078 audio_callback_time
= av_gettime();
2081 if (is
->audio_buf_index
>= is
->audio_buf_size
) {
2082 audio_size
= audio_decode_frame(is
, &pts
);
2083 if (audio_size
< 0) {
2084 /* if error, just output silence */
2085 is
->audio_buf
= is
->audio_buf1
;
2086 is
->audio_buf_size
= 1024;
2087 memset(is
->audio_buf
, 0, is
->audio_buf_size
);
2090 update_sample_display(is
, (int16_t *)is
->audio_buf
, audio_size
);
2091 audio_size
= synchronize_audio(is
, (int16_t *)is
->audio_buf
, audio_size
,
2093 is
->audio_buf_size
= audio_size
;
2095 is
->audio_buf_index
= 0;
2097 len1
= is
->audio_buf_size
- is
->audio_buf_index
;
2100 memcpy(stream
, (uint8_t *)is
->audio_buf
+ is
->audio_buf_index
, len1
);
2103 is
->audio_buf_index
+= len1
;
2107 /* open a given stream. Return 0 if OK */
2108 static int stream_component_open(VideoState
*is
, int stream_index
)
2110 AVFormatContext
*ic
= is
->ic
;
2111 AVCodecContext
*avctx
;
2113 SDL_AudioSpec wanted_spec
, spec
;
2115 if (stream_index
< 0 || stream_index
>= ic
->nb_streams
)
2117 avctx
= ic
->streams
[stream_index
]->codec
;
2119 /* prepare audio output */
2120 if (avctx
->codec_type
== CODEC_TYPE_AUDIO
) {
2121 if (avctx
->channels
> 0) {
2122 avctx
->request_channels
= FFMIN(2, avctx
->channels
);
2124 avctx
->request_channels
= 2;
2128 codec
= avcodec_find_decoder(avctx
->codec_id
);
2129 avctx
->debug_mv
= debug_mv
;
2130 avctx
->debug
= debug
;
2131 avctx
->workaround_bugs
= workaround_bugs
;
2132 avctx
->lowres
= lowres
;
2133 if(lowres
) avctx
->flags
|= CODEC_FLAG_EMU_EDGE
;
2134 avctx
->idct_algo
= idct
;
2135 if(fast
) avctx
->flags2
|= CODEC_FLAG2_FAST
;
2136 avctx
->skip_frame
= skip_frame
;
2137 avctx
->skip_idct
= skip_idct
;
2138 avctx
->skip_loop_filter
= skip_loop_filter
;
2139 avctx
->error_recognition
= error_recognition
;
2140 avctx
->error_concealment
= error_concealment
;
2141 avcodec_thread_init(avctx
, thread_count
);
2143 set_context_opts(avctx
, avcodec_opts
[avctx
->codec_type
], 0);
2146 avcodec_open(avctx
, codec
) < 0)
2149 /* prepare audio output */
2150 if (avctx
->codec_type
== CODEC_TYPE_AUDIO
) {
2151 wanted_spec
.freq
= avctx
->sample_rate
;
2152 wanted_spec
.format
= AUDIO_S16SYS
;
2153 wanted_spec
.channels
= avctx
->channels
;
2154 wanted_spec
.silence
= 0;
2155 wanted_spec
.samples
= SDL_AUDIO_BUFFER_SIZE
;
2156 wanted_spec
.callback
= sdl_audio_callback
;
2157 wanted_spec
.userdata
= is
;
2158 if (SDL_OpenAudio(&wanted_spec
, &spec
) < 0) {
2159 fprintf(stderr
, "SDL_OpenAudio: %s\n", SDL_GetError());
2162 is
->audio_hw_buf_size
= spec
.size
;
2163 is
->audio_src_fmt
= SAMPLE_FMT_S16
;
2166 ic
->streams
[stream_index
]->discard
= AVDISCARD_DEFAULT
;
2167 switch(avctx
->codec_type
) {
2168 case CODEC_TYPE_AUDIO
:
2169 is
->audio_stream
= stream_index
;
2170 is
->audio_st
= ic
->streams
[stream_index
];
2171 is
->audio_buf_size
= 0;
2172 is
->audio_buf_index
= 0;
2174 /* init averaging filter */
2175 is
->audio_diff_avg_coef
= exp(log(0.01) / AUDIO_DIFF_AVG_NB
);
2176 is
->audio_diff_avg_count
= 0;
2177 /* since we do not have a precise anough audio fifo fullness,
2178 we correct audio sync only if larger than this threshold */
2179 is
->audio_diff_threshold
= 2.0 * SDL_AUDIO_BUFFER_SIZE
/ avctx
->sample_rate
;
2181 memset(&is
->audio_pkt
, 0, sizeof(is
->audio_pkt
));
2182 packet_queue_init(&is
->audioq
);
2185 case CODEC_TYPE_VIDEO
:
2186 is
->video_stream
= stream_index
;
2187 is
->video_st
= ic
->streams
[stream_index
];
2189 // is->video_current_pts_time = av_gettime();
2191 packet_queue_init(&is
->videoq
);
2192 is
->video_tid
= SDL_CreateThread(video_thread
, is
);
2194 case CODEC_TYPE_SUBTITLE
:
2195 is
->subtitle_stream
= stream_index
;
2196 is
->subtitle_st
= ic
->streams
[stream_index
];
2197 packet_queue_init(&is
->subtitleq
);
2199 is
->subtitle_tid
= SDL_CreateThread(subtitle_thread
, is
);
2207 static void stream_component_close(VideoState
*is
, int stream_index
)
2209 AVFormatContext
*ic
= is
->ic
;
2210 AVCodecContext
*avctx
;
2212 if (stream_index
< 0 || stream_index
>= ic
->nb_streams
)
2214 avctx
= ic
->streams
[stream_index
]->codec
;
2216 switch(avctx
->codec_type
) {
2217 case CODEC_TYPE_AUDIO
:
2218 packet_queue_abort(&is
->audioq
);
2222 packet_queue_end(&is
->audioq
);
2223 if (is
->reformat_ctx
)
2224 av_audio_convert_free(is
->reformat_ctx
);
2225 is
->reformat_ctx
= NULL
;
2227 case CODEC_TYPE_VIDEO
:
2228 packet_queue_abort(&is
->videoq
);
2230 /* note: we also signal this mutex to make sure we deblock the
2231 video thread in all cases */
2232 SDL_LockMutex(is
->pictq_mutex
);
2233 SDL_CondSignal(is
->pictq_cond
);
2234 SDL_UnlockMutex(is
->pictq_mutex
);
2236 SDL_WaitThread(is
->video_tid
, NULL
);
2238 packet_queue_end(&is
->videoq
);
2240 case CODEC_TYPE_SUBTITLE
:
2241 packet_queue_abort(&is
->subtitleq
);
2243 /* note: we also signal this mutex to make sure we deblock the
2244 video thread in all cases */
2245 SDL_LockMutex(is
->subpq_mutex
);
2246 is
->subtitle_stream_changed
= 1;
2248 SDL_CondSignal(is
->subpq_cond
);
2249 SDL_UnlockMutex(is
->subpq_mutex
);
2251 SDL_WaitThread(is
->subtitle_tid
, NULL
);
2253 packet_queue_end(&is
->subtitleq
);
2259 ic
->streams
[stream_index
]->discard
= AVDISCARD_ALL
;
2260 avcodec_close(avctx
);
2261 switch(avctx
->codec_type
) {
2262 case CODEC_TYPE_AUDIO
:
2263 is
->audio_st
= NULL
;
2264 is
->audio_stream
= -1;
2266 case CODEC_TYPE_VIDEO
:
2267 is
->video_st
= NULL
;
2268 is
->video_stream
= -1;
2270 case CODEC_TYPE_SUBTITLE
:
2271 is
->subtitle_st
= NULL
;
2272 is
->subtitle_stream
= -1;
2279 /* since we have only one decoding thread, we can use a global
2280 variable instead of a thread local variable */
2281 static VideoState
*global_video_state
;
2283 static int decode_interrupt_cb(void)
2285 return (global_video_state
&& global_video_state
->abort_request
);
2288 /* this thread gets the stream from the disk or the network */
2289 static int decode_thread(void *arg
)
2291 VideoState
*is
= arg
;
2292 AVFormatContext
*ic
;
2294 int st_index
[CODEC_TYPE_NB
];
2295 int st_count
[CODEC_TYPE_NB
]={0};
2296 int st_best_packet_count
[CODEC_TYPE_NB
];
2297 AVPacket pkt1
, *pkt
= &pkt1
;
2298 AVFormatParameters params
, *ap
= ¶ms
;
2301 ic
= avformat_alloc_context();
2303 memset(st_index
, -1, sizeof(st_index
));
2304 memset(st_best_packet_count
, -1, sizeof(st_best_packet_count
));
2305 is
->video_stream
= -1;
2306 is
->audio_stream
= -1;
2307 is
->subtitle_stream
= -1;
2309 global_video_state
= is
;
2310 url_set_interrupt_cb(decode_interrupt_cb
);
2312 memset(ap
, 0, sizeof(*ap
));
2314 ap
->prealloced_context
= 1;
2315 ap
->width
= frame_width
;
2316 ap
->height
= frame_height
;
2317 ap
->time_base
= (AVRational
){1, 25};
2318 ap
->pix_fmt
= frame_pix_fmt
;
2320 set_context_opts(ic
, avformat_opts
, AV_OPT_FLAG_DECODING_PARAM
);
2322 err
= av_open_input_file(&ic
, is
->filename
, is
->iformat
, 0, ap
);
2324 print_error(is
->filename
, err
);
2331 ic
->flags
|= AVFMT_FLAG_GENPTS
;
2333 err
= av_find_stream_info(ic
);
2335 fprintf(stderr
, "%s: could not find codec parameters\n", is
->filename
);
2340 ic
->pb
->eof_reached
= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2343 seek_by_bytes
= !!(ic
->iformat
->flags
& AVFMT_TS_DISCONT
);
2345 /* if seeking requested, we execute it */
2346 if (start_time
!= AV_NOPTS_VALUE
) {
2349 timestamp
= start_time
;
2350 /* add the stream start time */
2351 if (ic
->start_time
!= AV_NOPTS_VALUE
)
2352 timestamp
+= ic
->start_time
;
2353 ret
= avformat_seek_file(ic
, -1, INT64_MIN
, timestamp
, INT64_MAX
, 0);
2355 fprintf(stderr
, "%s: could not seek to position %0.3f\n",
2356 is
->filename
, (double)timestamp
/ AV_TIME_BASE
);
2360 for(i
= 0; i
< ic
->nb_streams
; i
++) {
2361 AVStream
*st
= ic
->streams
[i
];
2362 AVCodecContext
*avctx
= st
->codec
;
2363 ic
->streams
[i
]->discard
= AVDISCARD_ALL
;
2364 if(avctx
->codec_type
>= (unsigned)CODEC_TYPE_NB
)
2366 if(st_count
[avctx
->codec_type
]++ != wanted_stream
[avctx
->codec_type
] && wanted_stream
[avctx
->codec_type
] >= 0)
2369 if(st_best_packet_count
[avctx
->codec_type
] >= st
->codec_info_nb_frames
)
2371 st_best_packet_count
[avctx
->codec_type
]= st
->codec_info_nb_frames
;
2373 switch(avctx
->codec_type
) {
2374 case CODEC_TYPE_AUDIO
:
2376 st_index
[CODEC_TYPE_AUDIO
] = i
;
2378 case CODEC_TYPE_VIDEO
:
2379 case CODEC_TYPE_SUBTITLE
:
2381 st_index
[avctx
->codec_type
] = i
;
2388 dump_format(ic
, 0, is
->filename
, 0);
2391 /* open the streams */
2392 if (st_index
[CODEC_TYPE_AUDIO
] >= 0) {
2393 stream_component_open(is
, st_index
[CODEC_TYPE_AUDIO
]);
2397 if (st_index
[CODEC_TYPE_VIDEO
] >= 0) {
2398 ret
= stream_component_open(is
, st_index
[CODEC_TYPE_VIDEO
]);
2400 is
->refresh_tid
= SDL_CreateThread(refresh_thread
, is
);
2402 if (!display_disable
)
2406 if (st_index
[CODEC_TYPE_SUBTITLE
] >= 0) {
2407 stream_component_open(is
, st_index
[CODEC_TYPE_SUBTITLE
]);
2410 if (is
->video_stream
< 0 && is
->audio_stream
< 0) {
2411 fprintf(stderr
, "%s: could not open codecs\n", is
->filename
);
2417 if (is
->abort_request
)
2419 if (is
->paused
!= is
->last_paused
) {
2420 is
->last_paused
= is
->paused
;
2422 is
->read_pause_return
= av_read_pause(ic
);
2426 #if CONFIG_RTSP_DEMUXER
2427 if (is
->paused
&& !strcmp(ic
->iformat
->name
, "rtsp")) {
2428 /* wait 10 ms to avoid trying to get another packet */
2435 int64_t seek_target
= is
->seek_pos
;
2436 int64_t seek_min
= is
->seek_rel
> 0 ? seek_target
- is
->seek_rel
+ 2: INT64_MIN
;
2437 int64_t seek_max
= is
->seek_rel
< 0 ? seek_target
- is
->seek_rel
- 2: INT64_MAX
;
2438 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2439 // of the seek_pos/seek_rel variables
2441 ret
= avformat_seek_file(is
->ic
, -1, seek_min
, seek_target
, seek_max
, is
->seek_flags
);
2443 fprintf(stderr
, "%s: error while seeking\n", is
->ic
->filename
);
2445 if (is
->audio_stream
>= 0) {
2446 packet_queue_flush(&is
->audioq
);
2447 packet_queue_put(&is
->audioq
, &flush_pkt
);
2449 if (is
->subtitle_stream
>= 0) {
2450 packet_queue_flush(&is
->subtitleq
);
2451 packet_queue_put(&is
->subtitleq
, &flush_pkt
);
2453 if (is
->video_stream
>= 0) {
2454 packet_queue_flush(&is
->videoq
);
2455 packet_queue_put(&is
->videoq
, &flush_pkt
);
2462 /* if the queue are full, no need to read more */
2463 if ( is
->audioq
.size
+ is
->videoq
.size
+ is
->subtitleq
.size
> MAX_QUEUE_SIZE
2464 || ( (is
->audioq
.size
> MIN_AUDIOQ_SIZE
|| is
->audio_stream
<0)
2465 && (is
->videoq
.nb_packets
> MIN_FRAMES
|| is
->video_stream
<0)
2466 && (is
->subtitleq
.nb_packets
> MIN_FRAMES
|| is
->subtitle_stream
<0))) {
2471 if(url_feof(ic
->pb
) || eof
) {
2472 if(is
->video_stream
>= 0){
2473 av_init_packet(pkt
);
2476 pkt
->stream_index
= is
->video_stream
;
2477 packet_queue_put(&is
->videoq
, pkt
);
2480 if(autoexit
&& is
->audioq
.size
+ is
->videoq
.size
+ is
->subtitleq
.size
==0){
2486 ret
= av_read_frame(ic
, pkt
);
2488 if (ret
== AVERROR_EOF
)
2490 if (url_ferror(ic
->pb
))
2492 SDL_Delay(100); /* wait for user event */
2495 if (pkt
->stream_index
== is
->audio_stream
) {
2496 packet_queue_put(&is
->audioq
, pkt
);
2497 } else if (pkt
->stream_index
== is
->video_stream
) {
2498 packet_queue_put(&is
->videoq
, pkt
);
2499 } else if (pkt
->stream_index
== is
->subtitle_stream
) {
2500 packet_queue_put(&is
->subtitleq
, pkt
);
2502 av_free_packet(pkt
);
2505 /* wait until the end */
2506 while (!is
->abort_request
) {
2512 /* disable interrupting */
2513 global_video_state
= NULL
;
2515 /* close each stream */
2516 if (is
->audio_stream
>= 0)
2517 stream_component_close(is
, is
->audio_stream
);
2518 if (is
->video_stream
>= 0)
2519 stream_component_close(is
, is
->video_stream
);
2520 if (is
->subtitle_stream
>= 0)
2521 stream_component_close(is
, is
->subtitle_stream
);
2523 av_close_input_file(is
->ic
);
2524 is
->ic
= NULL
; /* safety */
2526 url_set_interrupt_cb(NULL
);
2531 event
.type
= FF_QUIT_EVENT
;
2532 event
.user
.data1
= is
;
2533 SDL_PushEvent(&event
);
2538 static VideoState
*stream_open(const char *filename
, AVInputFormat
*iformat
)
2542 is
= av_mallocz(sizeof(VideoState
));
2545 av_strlcpy(is
->filename
, filename
, sizeof(is
->filename
));
2546 is
->iformat
= iformat
;
2550 /* start video display */
2551 is
->pictq_mutex
= SDL_CreateMutex();
2552 is
->pictq_cond
= SDL_CreateCond();
2554 is
->subpq_mutex
= SDL_CreateMutex();
2555 is
->subpq_cond
= SDL_CreateCond();
2557 is
->av_sync_type
= av_sync_type
;
2558 is
->parse_tid
= SDL_CreateThread(decode_thread
, is
);
2559 if (!is
->parse_tid
) {
2566 static void stream_close(VideoState
*is
)
2570 /* XXX: use a special url_shutdown call to abort parse cleanly */
2571 is
->abort_request
= 1;
2572 SDL_WaitThread(is
->parse_tid
, NULL
);
2573 SDL_WaitThread(is
->refresh_tid
, NULL
);
2575 /* free all pictures */
2576 for(i
=0;i
<VIDEO_PICTURE_QUEUE_SIZE
; i
++) {
2580 avfilter_unref_pic(vp
->picref
);
2585 SDL_FreeYUVOverlay(vp
->bmp
);
2589 SDL_DestroyMutex(is
->pictq_mutex
);
2590 SDL_DestroyCond(is
->pictq_cond
);
2591 SDL_DestroyMutex(is
->subpq_mutex
);
2592 SDL_DestroyCond(is
->subpq_cond
);
2593 #if !CONFIG_AVFILTER
2594 if (is
->img_convert_ctx
)
2595 sws_freeContext(is
->img_convert_ctx
);
2600 static void stream_cycle_channel(VideoState
*is
, int codec_type
)
2602 AVFormatContext
*ic
= is
->ic
;
2603 int start_index
, stream_index
;
2606 if (codec_type
== CODEC_TYPE_VIDEO
)
2607 start_index
= is
->video_stream
;
2608 else if (codec_type
== CODEC_TYPE_AUDIO
)
2609 start_index
= is
->audio_stream
;
2611 start_index
= is
->subtitle_stream
;
2612 if (start_index
< (codec_type
== CODEC_TYPE_SUBTITLE ?
-1 : 0))
2614 stream_index
= start_index
;
2616 if (++stream_index
>= is
->ic
->nb_streams
)
2618 if (codec_type
== CODEC_TYPE_SUBTITLE
)
2625 if (stream_index
== start_index
)
2627 st
= ic
->streams
[stream_index
];
2628 if (st
->codec
->codec_type
== codec_type
) {
2629 /* check that parameters are OK */
2630 switch(codec_type
) {
2631 case CODEC_TYPE_AUDIO
:
2632 if (st
->codec
->sample_rate
!= 0 &&
2633 st
->codec
->channels
!= 0)
2636 case CODEC_TYPE_VIDEO
:
2637 case CODEC_TYPE_SUBTITLE
:
2645 stream_component_close(is
, start_index
);
2646 stream_component_open(is
, stream_index
);
2650 static void toggle_full_screen(void)
2652 is_full_screen
= !is_full_screen
;
2653 if (!fs_screen_width
) {
2654 /* use default SDL method */
2655 // SDL_WM_ToggleFullScreen(screen);
2657 video_open(cur_stream
);
2660 static void toggle_pause(void)
2663 stream_pause(cur_stream
);
2667 static void step_to_next_frame(void)
2670 /* if the stream is paused unpause it, then step */
2671 if (cur_stream
->paused
)
2672 stream_pause(cur_stream
);
2677 static void do_exit(void)
2681 stream_close(cur_stream
);
2684 for (i
= 0; i
< CODEC_TYPE_NB
; i
++)
2685 av_free(avcodec_opts
[i
]);
2686 av_free(avformat_opts
);
2697 static void toggle_audio_display(void)
2700 int bgcolor
= SDL_MapRGB(screen
->format
, 0x00, 0x00, 0x00);
2701 cur_stream
->show_audio
= (cur_stream
->show_audio
+ 1) % 3;
2702 fill_rectangle(screen
,
2703 cur_stream
->xleft
, cur_stream
->ytop
, cur_stream
->width
, cur_stream
->height
,
2705 SDL_UpdateRect(screen
, cur_stream
->xleft
, cur_stream
->ytop
, cur_stream
->width
, cur_stream
->height
);
2709 /* handle an event sent by the GUI */
2710 static void event_loop(void)
2713 double incr
, pos
, frac
;
2717 SDL_WaitEvent(&event
);
2718 switch(event
.type
) {
2720 switch(event
.key
.keysym
.sym
) {
2726 toggle_full_screen();
2732 case SDLK_s
: //S: Step to next frame
2733 step_to_next_frame();
2737 stream_cycle_channel(cur_stream
, CODEC_TYPE_AUDIO
);
2741 stream_cycle_channel(cur_stream
, CODEC_TYPE_VIDEO
);
2745 stream_cycle_channel(cur_stream
, CODEC_TYPE_SUBTITLE
);
2748 toggle_audio_display();
2763 if (seek_by_bytes
) {
2764 if (cur_stream
->video_stream
>= 0 && cur_stream
->video_current_pos
>=0){
2765 pos
= cur_stream
->video_current_pos
;
2766 }else if(cur_stream
->audio_stream
>= 0 && cur_stream
->audio_pkt
.pos
>=0){
2767 pos
= cur_stream
->audio_pkt
.pos
;
2769 pos
= url_ftell(cur_stream
->ic
->pb
);
2770 if (cur_stream
->ic
->bit_rate
)
2771 incr
*= cur_stream
->ic
->bit_rate
/ 8.0;
2775 stream_seek(cur_stream
, pos
, incr
, 1);
2777 pos
= get_master_clock(cur_stream
);
2779 stream_seek(cur_stream
, (int64_t)(pos
* AV_TIME_BASE
), (int64_t)(incr
* AV_TIME_BASE
), 0);
2787 case SDL_MOUSEBUTTONDOWN
:
2788 case SDL_MOUSEMOTION
:
2789 if(event
.type
==SDL_MOUSEBUTTONDOWN
){
2792 if(event
.motion
.state
!= SDL_PRESSED
)
2797 if(seek_by_bytes
|| cur_stream
->ic
->duration
<=0){
2798 uint64_t size
= url_fsize(cur_stream
->ic
->pb
);
2799 stream_seek(cur_stream
, size
*x
/cur_stream
->width
, 0, 1);
2803 int tns
, thh
, tmm
, tss
;
2804 tns
= cur_stream
->ic
->duration
/1000000LL;
2806 tmm
= (tns
%3600)/60;
2808 frac
= x
/cur_stream
->width
;
2813 fprintf(stderr
, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac
*100,
2814 hh
, mm
, ss
, thh
, tmm
, tss
);
2815 ts
= frac
*cur_stream
->ic
->duration
;
2816 if (cur_stream
->ic
->start_time
!= AV_NOPTS_VALUE
)
2817 ts
+= cur_stream
->ic
->start_time
;
2818 stream_seek(cur_stream
, ts
, 0, 0);
2822 case SDL_VIDEORESIZE
:
2824 screen
= SDL_SetVideoMode(event
.resize
.w
, event
.resize
.h
, 0,
2825 SDL_HWSURFACE
|SDL_RESIZABLE
|SDL_ASYNCBLIT
|SDL_HWACCEL
);
2826 screen_width
= cur_stream
->width
= event
.resize
.w
;
2827 screen_height
= cur_stream
->height
= event
.resize
.h
;
2834 case FF_ALLOC_EVENT
:
2835 video_open(event
.user
.data1
);
2836 alloc_picture(event
.user
.data1
);
2838 case FF_REFRESH_EVENT
:
2839 video_refresh_timer(event
.user
.data1
);
2840 cur_stream
->refresh
=0;
2848 static void opt_frame_size(const char *arg
)
2850 if (av_parse_video_frame_size(&frame_width
, &frame_height
, arg
) < 0) {
2851 fprintf(stderr
, "Incorrect frame size\n");
2854 if ((frame_width
% 2) != 0 || (frame_height
% 2) != 0) {
2855 fprintf(stderr
, "Frame size must be a multiple of 2\n");
2860 static int opt_width(const char *opt
, const char *arg
)
2862 screen_width
= parse_number_or_die(opt
, arg
, OPT_INT64
, 1, INT_MAX
);
2866 static int opt_height(const char *opt
, const char *arg
)
2868 screen_height
= parse_number_or_die(opt
, arg
, OPT_INT64
, 1, INT_MAX
);
2872 static void opt_format(const char *arg
)
2874 file_iformat
= av_find_input_format(arg
);
2875 if (!file_iformat
) {
2876 fprintf(stderr
, "Unknown input format: %s\n", arg
);
2881 static void opt_frame_pix_fmt(const char *arg
)
2883 frame_pix_fmt
= av_get_pix_fmt(arg
);
2886 static int opt_sync(const char *opt
, const char *arg
)
2888 if (!strcmp(arg
, "audio"))
2889 av_sync_type
= AV_SYNC_AUDIO_MASTER
;
2890 else if (!strcmp(arg
, "video"))
2891 av_sync_type
= AV_SYNC_VIDEO_MASTER
;
2892 else if (!strcmp(arg
, "ext"))
2893 av_sync_type
= AV_SYNC_EXTERNAL_CLOCK
;
2895 fprintf(stderr
, "Unknown value for %s: %s\n", opt
, arg
);
2901 static int opt_seek(const char *opt
, const char *arg
)
2903 start_time
= parse_time_or_die(opt
, arg
, 1);
2907 static int opt_debug(const char *opt
, const char *arg
)
2909 av_log_set_level(99);
2910 debug
= parse_number_or_die(opt
, arg
, OPT_INT64
, 0, INT_MAX
);
2914 static int opt_vismv(const char *opt
, const char *arg
)
2916 debug_mv
= parse_number_or_die(opt
, arg
, OPT_INT64
, INT_MIN
, INT_MAX
);
2920 static int opt_thread_count(const char *opt
, const char *arg
)
2922 thread_count
= parse_number_or_die(opt
, arg
, OPT_INT64
, 0, INT_MAX
);
2924 fprintf(stderr
, "Warning: not compiled with thread support, using thread emulation\n");
2929 static const OptionDef options
[] = {
2930 #include "cmdutils_common_opts.h"
2931 { "x", HAS_ARG
| OPT_FUNC2
, {(void*)opt_width
}, "force displayed width", "width" },
2932 { "y", HAS_ARG
| OPT_FUNC2
, {(void*)opt_height
}, "force displayed height", "height" },
2933 { "s", HAS_ARG
| OPT_VIDEO
, {(void*)opt_frame_size
}, "set frame size (WxH or abbreviation)", "size" },
2934 { "fs", OPT_BOOL
, {(void*)&is_full_screen
}, "force full screen" },
2935 { "an", OPT_BOOL
, {(void*)&audio_disable
}, "disable audio" },
2936 { "vn", OPT_BOOL
, {(void*)&video_disable
}, "disable video" },
2937 { "ast", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&wanted_stream
[CODEC_TYPE_AUDIO
]}, "select desired audio stream", "stream_number" },
2938 { "vst", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&wanted_stream
[CODEC_TYPE_VIDEO
]}, "select desired video stream", "stream_number" },
2939 { "sst", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&wanted_stream
[CODEC_TYPE_SUBTITLE
]}, "select desired subtitle stream", "stream_number" },
2940 { "ss", HAS_ARG
| OPT_FUNC2
, {(void*)&opt_seek
}, "seek to a given position in seconds", "pos" },
2941 { "bytes", OPT_INT
| HAS_ARG
, {(void*)&seek_by_bytes
}, "seek by bytes 0=off 1=on -1=auto", "val" },
2942 { "nodisp", OPT_BOOL
, {(void*)&display_disable
}, "disable graphical display" },
2943 { "f", HAS_ARG
, {(void*)opt_format
}, "force format", "fmt" },
2944 { "pix_fmt", HAS_ARG
| OPT_EXPERT
| OPT_VIDEO
, {(void*)opt_frame_pix_fmt
}, "set pixel format", "format" },
2945 { "stats", OPT_BOOL
| OPT_EXPERT
, {(void*)&show_status
}, "show status", "" },
2946 { "debug", HAS_ARG
| OPT_FUNC2
| OPT_EXPERT
, {(void*)opt_debug
}, "print specific debug info", "" },
2947 { "bug", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&workaround_bugs
}, "workaround bugs", "" },
2948 { "vismv", HAS_ARG
| OPT_FUNC2
| OPT_EXPERT
, {(void*)opt_vismv
}, "visualize motion vectors", "" },
2949 { "fast", OPT_BOOL
| OPT_EXPERT
, {(void*)&fast
}, "non spec compliant optimizations", "" },
2950 { "genpts", OPT_BOOL
| OPT_EXPERT
, {(void*)&genpts
}, "generate pts", "" },
2951 { "drp", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&decoder_reorder_pts
}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2952 { "lowres", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&lowres
}, "", "" },
2953 { "skiploop", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&skip_loop_filter
}, "", "" },
2954 { "skipframe", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&skip_frame
}, "", "" },
2955 { "skipidct", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&skip_idct
}, "", "" },
2956 { "idct", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&idct
}, "set idct algo", "algo" },
2957 { "er", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&error_recognition
}, "set error detection threshold (0-4)", "threshold" },
2958 { "ec", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&error_concealment
}, "set error concealment options", "bit_mask" },
2959 { "sync", HAS_ARG
| OPT_FUNC2
| OPT_EXPERT
, {(void*)opt_sync
}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2960 { "threads", HAS_ARG
| OPT_FUNC2
| OPT_EXPERT
, {(void*)opt_thread_count
}, "thread count", "count" },
2961 { "autoexit", OPT_BOOL
| OPT_EXPERT
, {(void*)&autoexit
}, "exit at the end", "" },
2962 { "framedrop", OPT_BOOL
| OPT_EXPERT
, {(void*)&framedrop
}, "drop frames when cpu is too slow", "" },
2964 { "vfilters", OPT_STRING
| HAS_ARG
, {(void*)&vfilters
}, "video filters", "filter list" },
2966 { "rdftspeed", OPT_INT
| HAS_ARG
| OPT_AUDIO
| OPT_EXPERT
, {(void*)&rdftspeed
}, "rdft speed", "msecs" },
2967 { "default", OPT_FUNC2
| HAS_ARG
| OPT_AUDIO
| OPT_VIDEO
| OPT_EXPERT
, {(void*)opt_default
}, "generic catch all option", "" },
2971 static void show_usage(void)
2973 printf("Simple media player\n");
2974 printf("usage: ffplay [options] input_file\n");
2978 static void show_help(void)
2981 show_help_options(options
, "Main options:\n",
2983 show_help_options(options
, "\nAdvanced options:\n",
2984 OPT_EXPERT
, OPT_EXPERT
);
2985 printf("\nWhile playing:\n"
2987 "f toggle full screen\n"
2989 "a cycle audio channel\n"
2990 "v cycle video channel\n"
2991 "t cycle subtitle channel\n"
2992 "w show audio waves\n"
2993 "left/right seek backward/forward 10 seconds\n"
2994 "down/up seek backward/forward 1 minute\n"
2995 "mouse click seek to percentage in file corresponding to fraction of width\n"
2999 static void opt_input_file(const char *filename
)
3001 if (input_filename
) {
3002 fprintf(stderr
, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3003 filename
, input_filename
);
3006 if (!strcmp(filename
, "-"))
3008 input_filename
= filename
;
3011 /* Called from the main */
3012 int main(int argc
, char **argv
)
3016 /* register all codecs, demux and protocols */
3017 avcodec_register_all();
3018 avdevice_register_all();
3020 avfilter_register_all();
3024 for(i
=0; i
<CODEC_TYPE_NB
; i
++){
3025 avcodec_opts
[i
]= avcodec_alloc_context2(i
);
3027 avformat_opts
= avformat_alloc_context();
3028 #if !CONFIG_AVFILTER
3029 sws_opts
= sws_getContext(16,16,0, 16,16,0, sws_flags
, NULL
,NULL
,NULL
);
3034 parse_options(argc
, argv
, options
, opt_input_file
);
3036 if (!input_filename
) {
3038 fprintf(stderr
, "An input file must be specified\n");
3039 fprintf(stderr
, "Use -h to get full help or, even better, run 'man ffplay'\n");
3043 if (display_disable
) {
3046 flags
= SDL_INIT_VIDEO
| SDL_INIT_AUDIO
| SDL_INIT_TIMER
;
3047 #if !defined(__MINGW32__) && !defined(__APPLE__)
3048 flags
|= SDL_INIT_EVENTTHREAD
; /* Not supported on Windows or Mac OS X */
3050 if (SDL_Init (flags
)) {
3051 fprintf(stderr
, "Could not initialize SDL - %s\n", SDL_GetError());
3055 if (!display_disable
) {
3056 #if HAVE_SDL_VIDEO_SIZE
3057 const SDL_VideoInfo
*vi
= SDL_GetVideoInfo();
3058 fs_screen_width
= vi
->current_w
;
3059 fs_screen_height
= vi
->current_h
;
3063 SDL_EventState(SDL_ACTIVEEVENT
, SDL_IGNORE
);
3064 SDL_EventState(SDL_SYSWMEVENT
, SDL_IGNORE
);
3065 SDL_EventState(SDL_USEREVENT
, SDL_IGNORE
);
3067 av_init_packet(&flush_pkt
);
3068 flush_pkt
.data
= "FLUSH";
3070 cur_stream
= stream_open(input_filename
, file_iformat
);