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
24 #include "libavutil/avstring.h"
25 #include "libavformat/avformat.h"
26 #include "libavformat/rtsp.h"
27 #include "libavdevice/avdevice.h"
28 #include "libswscale/swscale.h"
29 #include "libavcodec/audioconvert.h"
30 #include "libavcodec/opt.h"
35 #include <SDL_thread.h>
38 #undef main /* We don't want SDL to override our main() */
43 const char program_name
[] = "FFplay";
44 const int program_birth_year
= 2003;
48 #define MAX_VIDEOQ_SIZE (5 * 256 * 1024)
49 #define MAX_AUDIOQ_SIZE (5 * 16 * 1024)
50 #define MAX_SUBTITLEQ_SIZE (5 * 16 * 1024)
52 /* SDL audio buffer size, in samples. Should be small to have precise
53 A/V sync as SDL does not have hardware buffer fullness info. */
54 #define SDL_AUDIO_BUFFER_SIZE 1024
56 /* no AV sync correction is done if below the AV sync threshold */
57 #define AV_SYNC_THRESHOLD 0.01
58 /* no AV correction is done if too big error */
59 #define AV_NOSYNC_THRESHOLD 10.0
61 /* maximum audio speed change to get correct sync */
62 #define SAMPLE_CORRECTION_PERCENT_MAX 10
64 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
65 #define AUDIO_DIFF_AVG_NB 20
67 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
68 #define SAMPLE_ARRAY_SIZE (2*65536)
70 static int sws_flags
= SWS_BICUBIC
;
72 typedef struct PacketQueue
{
73 AVPacketList
*first_pkt
, *last_pkt
;
81 #define VIDEO_PICTURE_QUEUE_SIZE 1
82 #define SUBPICTURE_QUEUE_SIZE 4
84 typedef struct VideoPicture
{
85 double pts
; ///<presentation time stamp for this picture
87 int width
, height
; /* source height & width */
91 typedef struct SubPicture
{
92 double pts
; /* presentation time stamp for this picture */
97 AV_SYNC_AUDIO_MASTER
, /* default choice */
99 AV_SYNC_EXTERNAL_CLOCK
, /* synchronize to an external clock */
102 typedef struct VideoState
{
103 SDL_Thread
*parse_tid
;
104 SDL_Thread
*video_tid
;
105 AVInputFormat
*iformat
;
114 int dtg_active_format
;
119 double external_clock
; /* external clock base */
120 int64_t external_clock_time
;
123 double audio_diff_cum
; /* used for AV difference average computation */
124 double audio_diff_avg_coef
;
125 double audio_diff_threshold
;
126 int audio_diff_avg_count
;
129 int audio_hw_buf_size
;
130 /* samples output by the codec. we reserve more space for avsync
132 DECLARE_ALIGNED(16,uint8_t,audio_buf1
[(AVCODEC_MAX_AUDIO_FRAME_SIZE
* 3) / 2]);
133 DECLARE_ALIGNED(16,uint8_t,audio_buf2
[(AVCODEC_MAX_AUDIO_FRAME_SIZE
* 3) / 2]);
135 unsigned int audio_buf_size
; /* in bytes */
136 int audio_buf_index
; /* in bytes */
138 uint8_t *audio_pkt_data
;
140 enum SampleFormat audio_src_fmt
;
141 AVAudioConvert
*reformat_ctx
;
143 int show_audio
; /* if true, display audio samples */
144 int16_t sample_array
[SAMPLE_ARRAY_SIZE
];
145 int sample_array_index
;
148 SDL_Thread
*subtitle_tid
;
150 int subtitle_stream_changed
;
151 AVStream
*subtitle_st
;
152 PacketQueue subtitleq
;
153 SubPicture subpq
[SUBPICTURE_QUEUE_SIZE
];
154 int subpq_size
, subpq_rindex
, subpq_windex
;
155 SDL_mutex
*subpq_mutex
;
156 SDL_cond
*subpq_cond
;
159 double frame_last_pts
;
160 double frame_last_delay
;
161 double video_clock
; ///<pts of last decoded frame / predicted pts of next decoded frame
165 double video_current_pts
; ///<current displayed pts (different from video_clock if frame fifos are used)
166 int64_t video_current_pts_time
; ///<time (av_gettime) at which we updated video_current_pts - used to have running video pts
167 VideoPicture pictq
[VIDEO_PICTURE_QUEUE_SIZE
];
168 int pictq_size
, pictq_rindex
, pictq_windex
;
169 SDL_mutex
*pictq_mutex
;
170 SDL_cond
*pictq_cond
;
172 // QETimer *video_timer;
174 int width
, height
, xleft
, ytop
;
177 static void show_help(void);
178 static int audio_write_get_buf_size(VideoState
*is
);
180 /* options specified by the user */
181 static AVInputFormat
*file_iformat
;
182 static const char *input_filename
;
183 static int fs_screen_width
;
184 static int fs_screen_height
;
185 static int screen_width
= 0;
186 static int screen_height
= 0;
187 static int frame_width
= 0;
188 static int frame_height
= 0;
189 static enum PixelFormat frame_pix_fmt
= PIX_FMT_NONE
;
190 static int audio_disable
;
191 static int video_disable
;
192 static int wanted_audio_stream
= 0;
193 static int wanted_video_stream
= 0;
194 static int seek_by_bytes
;
195 static int display_disable
;
196 static int show_status
;
197 static int av_sync_type
= AV_SYNC_AUDIO_MASTER
;
198 static int64_t start_time
= AV_NOPTS_VALUE
;
199 static int debug
= 0;
200 static int debug_mv
= 0;
202 static int thread_count
= 1;
203 static int workaround_bugs
= 1;
205 static int genpts
= 0;
206 static int lowres
= 0;
207 static int idct
= FF_IDCT_AUTO
;
208 static enum AVDiscard skip_frame
= AVDISCARD_DEFAULT
;
209 static enum AVDiscard skip_idct
= AVDISCARD_DEFAULT
;
210 static enum AVDiscard skip_loop_filter
= AVDISCARD_DEFAULT
;
211 static int error_recognition
= FF_ER_CAREFUL
;
212 static int error_concealment
= 3;
213 static int decoder_reorder_pts
= 0;
215 /* current context */
216 static int is_full_screen
;
217 static VideoState
*cur_stream
;
218 static int64_t audio_callback_time
;
220 static AVPacket flush_pkt
;
222 #define FF_ALLOC_EVENT (SDL_USEREVENT)
223 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
224 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
226 static SDL_Surface
*screen
;
228 /* packet queue handling */
229 static void packet_queue_init(PacketQueue
*q
)
231 memset(q
, 0, sizeof(PacketQueue
));
232 q
->mutex
= SDL_CreateMutex();
233 q
->cond
= SDL_CreateCond();
236 static void packet_queue_flush(PacketQueue
*q
)
238 AVPacketList
*pkt
, *pkt1
;
240 SDL_LockMutex(q
->mutex
);
241 for(pkt
= q
->first_pkt
; pkt
!= NULL
; pkt
= pkt1
) {
243 av_free_packet(&pkt
->pkt
);
250 SDL_UnlockMutex(q
->mutex
);
253 static void packet_queue_end(PacketQueue
*q
)
255 packet_queue_flush(q
);
256 SDL_DestroyMutex(q
->mutex
);
257 SDL_DestroyCond(q
->cond
);
260 static int packet_queue_put(PacketQueue
*q
, AVPacket
*pkt
)
264 /* duplicate the packet */
265 if (pkt
!=&flush_pkt
&& av_dup_packet(pkt
) < 0)
268 pkt1
= av_malloc(sizeof(AVPacketList
));
275 SDL_LockMutex(q
->mutex
);
281 q
->last_pkt
->next
= pkt1
;
284 q
->size
+= pkt1
->pkt
.size
;
285 /* XXX: should duplicate packet data in DV case */
286 SDL_CondSignal(q
->cond
);
288 SDL_UnlockMutex(q
->mutex
);
292 static void packet_queue_abort(PacketQueue
*q
)
294 SDL_LockMutex(q
->mutex
);
296 q
->abort_request
= 1;
298 SDL_CondSignal(q
->cond
);
300 SDL_UnlockMutex(q
->mutex
);
303 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
304 static int packet_queue_get(PacketQueue
*q
, AVPacket
*pkt
, int block
)
309 SDL_LockMutex(q
->mutex
);
312 if (q
->abort_request
) {
319 q
->first_pkt
= pkt1
->next
;
323 q
->size
-= pkt1
->pkt
.size
;
332 SDL_CondWait(q
->cond
, q
->mutex
);
335 SDL_UnlockMutex(q
->mutex
);
339 static inline void fill_rectangle(SDL_Surface
*screen
,
340 int x
, int y
, int w
, int h
, int color
)
347 SDL_FillRect(screen
, &rect
, color
);
351 /* draw only the border of a rectangle */
352 void fill_border(VideoState
*s
, int x
, int y
, int w
, int h
, int color
)
356 /* fill the background */
360 w2
= s
->width
- (x
+ w
);
366 h2
= s
->height
- (y
+ h
);
369 fill_rectangle(screen
,
373 fill_rectangle(screen
,
374 s
->xleft
+ s
->width
- w2
, s
->ytop
,
377 fill_rectangle(screen
,
378 s
->xleft
+ w1
, s
->ytop
,
379 s
->width
- w1
- w2
, h1
,
381 fill_rectangle(screen
,
382 s
->xleft
+ w1
, s
->ytop
+ s
->height
- h2
,
383 s
->width
- w1
- w2
, h2
,
391 #define ONE_HALF (1 << (SCALEBITS - 1))
392 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
394 #define RGB_TO_Y_CCIR(r, g, b) \
395 ((FIX(0.29900*219.0/255.0) * (r) + FIX(0.58700*219.0/255.0) * (g) + \
396 FIX(0.11400*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS)
398 #define RGB_TO_U_CCIR(r1, g1, b1, shift)\
399 (((- FIX(0.16874*224.0/255.0) * r1 - FIX(0.33126*224.0/255.0) * g1 + \
400 FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
402 #define RGB_TO_V_CCIR(r1, g1, b1, shift)\
403 (((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 - \
404 FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
406 #define ALPHA_BLEND(a, oldp, newp, s)\
407 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
409 #define RGBA_IN(r, g, b, a, s)\
411 unsigned int v = ((const uint32_t *)(s))[0];\
412 a = (v >> 24) & 0xff;\
413 r = (v >> 16) & 0xff;\
414 g = (v >> 8) & 0xff;\
418 #define YUVA_IN(y, u, v, a, s, pal)\
420 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
421 a = (val >> 24) & 0xff;\
422 y = (val >> 16) & 0xff;\
423 u = (val >> 8) & 0xff;\
427 #define YUVA_OUT(d, y, u, v, a)\
429 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
435 static void blend_subrect(AVPicture
*dst
, const AVSubtitleRect
*rect
, int imgw
, int imgh
)
437 int wrap
, wrap3
, width2
, skip2
;
438 int y
, u
, v
, a
, u1
, v1
, a1
, w
, h
;
439 uint8_t *lum
, *cb
, *cr
;
442 int dstx
, dsty
, dstw
, dsth
;
444 dstw
= av_clip(rect
->w
, 0, imgw
);
445 dsth
= av_clip(rect
->h
, 0, imgh
);
446 dstx
= av_clip(rect
->x
, 0, imgw
- dstw
);
447 dsty
= av_clip(rect
->y
, 0, imgh
- dsth
);
448 lum
= dst
->data
[0] + dsty
* dst
->linesize
[0];
449 cb
= dst
->data
[1] + (dsty
>> 1) * dst
->linesize
[1];
450 cr
= dst
->data
[2] + (dsty
>> 1) * dst
->linesize
[2];
452 width2
= (dstw
+ 1) >> 1;
454 wrap
= dst
->linesize
[0];
455 wrap3
= rect
->pict
.linesize
[0];
456 p
= rect
->pict
.data
[0];
457 pal
= (const uint32_t *)rect
->pict
.data
[1]; /* Now in YCrCb! */
465 YUVA_IN(y
, u
, v
, a
, p
, pal
);
466 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
467 cb
[0] = ALPHA_BLEND(a
>> 2, cb
[0], u
, 0);
468 cr
[0] = ALPHA_BLEND(a
>> 2, cr
[0], v
, 0);
474 for(w
= dstw
- (dstx
& 1); w
>= 2; w
-= 2) {
475 YUVA_IN(y
, u
, v
, a
, p
, pal
);
479 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
481 YUVA_IN(y
, u
, v
, a
, p
+ BPP
, pal
);
485 lum
[1] = ALPHA_BLEND(a
, lum
[1], y
, 0);
486 cb
[0] = ALPHA_BLEND(a1
>> 2, cb
[0], u1
, 1);
487 cr
[0] = ALPHA_BLEND(a1
>> 2, cr
[0], v1
, 1);
494 YUVA_IN(y
, u
, v
, a
, p
, pal
);
495 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
496 cb
[0] = ALPHA_BLEND(a
>> 2, cb
[0], u
, 0);
497 cr
[0] = ALPHA_BLEND(a
>> 2, cr
[0], v
, 0);
499 p
+= wrap3
+ (wrap3
- dstw
* BPP
);
500 lum
+= wrap
+ (wrap
- dstw
- dstx
);
501 cb
+= dst
->linesize
[1] - width2
- skip2
;
502 cr
+= dst
->linesize
[2] - width2
- skip2
;
504 for(h
= dsth
- (dsty
& 1); h
>= 2; h
-= 2) {
510 YUVA_IN(y
, u
, v
, a
, p
, pal
);
514 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
517 YUVA_IN(y
, u
, v
, a
, p
, pal
);
521 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
522 cb
[0] = ALPHA_BLEND(a1
>> 2, cb
[0], u1
, 1);
523 cr
[0] = ALPHA_BLEND(a1
>> 2, cr
[0], v1
, 1);
529 for(w
= dstw
- (dstx
& 1); w
>= 2; w
-= 2) {
530 YUVA_IN(y
, u
, v
, a
, p
, pal
);
534 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
536 YUVA_IN(y
, u
, v
, a
, p
, pal
);
540 lum
[1] = ALPHA_BLEND(a
, lum
[1], y
, 0);
544 YUVA_IN(y
, u
, v
, a
, p
, pal
);
548 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
550 YUVA_IN(y
, u
, v
, a
, p
, pal
);
554 lum
[1] = ALPHA_BLEND(a
, lum
[1], y
, 0);
556 cb
[0] = ALPHA_BLEND(a1
>> 2, cb
[0], u1
, 2);
557 cr
[0] = ALPHA_BLEND(a1
>> 2, cr
[0], v1
, 2);
561 p
+= -wrap3
+ 2 * BPP
;
565 YUVA_IN(y
, u
, v
, a
, p
, pal
);
569 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
572 YUVA_IN(y
, u
, v
, a
, p
, pal
);
576 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
577 cb
[0] = ALPHA_BLEND(a1
>> 2, cb
[0], u1
, 1);
578 cr
[0] = ALPHA_BLEND(a1
>> 2, cr
[0], v1
, 1);
584 p
+= wrap3
+ (wrap3
- dstw
* BPP
);
585 lum
+= wrap
+ (wrap
- dstw
- dstx
);
586 cb
+= dst
->linesize
[1] - width2
- skip2
;
587 cr
+= dst
->linesize
[2] - width2
- skip2
;
589 /* handle odd height */
596 YUVA_IN(y
, u
, v
, a
, p
, pal
);
597 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
598 cb
[0] = ALPHA_BLEND(a
>> 2, cb
[0], u
, 0);
599 cr
[0] = ALPHA_BLEND(a
>> 2, cr
[0], v
, 0);
605 for(w
= dstw
- (dstx
& 1); w
>= 2; w
-= 2) {
606 YUVA_IN(y
, u
, v
, a
, p
, pal
);
610 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
612 YUVA_IN(y
, u
, v
, a
, p
+ BPP
, pal
);
616 lum
[1] = ALPHA_BLEND(a
, lum
[1], y
, 0);
617 cb
[0] = ALPHA_BLEND(a1
>> 2, cb
[0], u
, 1);
618 cr
[0] = ALPHA_BLEND(a1
>> 2, cr
[0], v
, 1);
625 YUVA_IN(y
, u
, v
, a
, p
, pal
);
626 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
627 cb
[0] = ALPHA_BLEND(a
>> 2, cb
[0], u
, 0);
628 cr
[0] = ALPHA_BLEND(a
>> 2, cr
[0], v
, 0);
633 static void free_subpicture(SubPicture
*sp
)
637 for (i
= 0; i
< sp
->sub
.num_rects
; i
++)
639 av_freep(&sp
->sub
.rects
[i
]->pict
.data
[0]);
640 av_freep(&sp
->sub
.rects
[i
]->pict
.data
[1]);
641 av_freep(&sp
->sub
.rects
[i
]);
644 av_free(sp
->sub
.rects
);
646 memset(&sp
->sub
, 0, sizeof(AVSubtitle
));
649 static void video_image_display(VideoState
*is
)
655 int width
, height
, x
, y
;
659 vp
= &is
->pictq
[is
->pictq_rindex
];
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
);
668 if (aspect_ratio
<= 0.0)
670 aspect_ratio
*= (float)is
->video_st
->codec
->width
/ is
->video_st
->codec
->height
;
671 /* if an active format is indicated, then it overrides the
674 if (is
->video_st
->codec
->dtg_active_format
!= is
->dtg_active_format
) {
675 is
->dtg_active_format
= is
->video_st
->codec
->dtg_active_format
;
676 printf("dtg_active_format=%d\n", is
->dtg_active_format
);
680 switch(is
->video_st
->codec
->dtg_active_format
) {
681 case FF_DTG_AFD_SAME
:
686 aspect_ratio
= 4.0 / 3.0;
688 case FF_DTG_AFD_16_9
:
689 aspect_ratio
= 16.0 / 9.0;
691 case FF_DTG_AFD_14_9
:
692 aspect_ratio
= 14.0 / 9.0;
694 case FF_DTG_AFD_4_3_SP_14_9
:
695 aspect_ratio
= 14.0 / 9.0;
697 case FF_DTG_AFD_16_9_SP_14_9
:
698 aspect_ratio
= 14.0 / 9.0;
700 case FF_DTG_AFD_SP_4_3
:
701 aspect_ratio
= 4.0 / 3.0;
708 if (is
->subpq_size
> 0)
710 sp
= &is
->subpq
[is
->subpq_rindex
];
712 if (vp
->pts
>= sp
->pts
+ ((float) sp
->sub
.start_display_time
/ 1000))
714 SDL_LockYUVOverlay (vp
->bmp
);
716 pict
.data
[0] = vp
->bmp
->pixels
[0];
717 pict
.data
[1] = vp
->bmp
->pixels
[2];
718 pict
.data
[2] = vp
->bmp
->pixels
[1];
720 pict
.linesize
[0] = vp
->bmp
->pitches
[0];
721 pict
.linesize
[1] = vp
->bmp
->pitches
[2];
722 pict
.linesize
[2] = vp
->bmp
->pitches
[1];
724 for (i
= 0; i
< sp
->sub
.num_rects
; i
++)
725 blend_subrect(&pict
, sp
->sub
.rects
[i
],
726 vp
->bmp
->w
, vp
->bmp
->h
);
728 SDL_UnlockYUVOverlay (vp
->bmp
);
734 /* XXX: we suppose the screen has a 1.0 pixel ratio */
736 width
= ((int)rint(height
* aspect_ratio
)) & ~1;
737 if (width
> is
->width
) {
739 height
= ((int)rint(width
/ aspect_ratio
)) & ~1;
741 x
= (is
->width
- width
) / 2;
742 y
= (is
->height
- height
) / 2;
743 if (!is
->no_background
) {
744 /* fill the background */
745 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
747 is
->no_background
= 0;
749 rect
.x
= is
->xleft
+ x
;
750 rect
.y
= is
->ytop
+ y
;
753 SDL_DisplayYUVOverlay(vp
->bmp
, &rect
);
756 fill_rectangle(screen
,
757 is
->xleft
, is
->ytop
, is
->width
, is
->height
,
758 QERGB(0x00, 0x00, 0x00));
763 static inline int compute_mod(int a
, int b
)
772 static void video_audio_display(VideoState
*s
)
774 int i
, i_start
, x
, y1
, y
, ys
, delay
, n
, nb_display_channels
;
775 int ch
, channels
, h
, h2
, bgcolor
, fgcolor
;
778 /* compute display index : center on currently output samples */
779 channels
= s
->audio_st
->codec
->channels
;
780 nb_display_channels
= channels
;
783 delay
= audio_write_get_buf_size(s
);
786 /* to be more precise, we take into account the time spent since
787 the last buffer computation */
788 if (audio_callback_time
) {
789 time_diff
= av_gettime() - audio_callback_time
;
790 delay
+= (time_diff
* s
->audio_st
->codec
->sample_rate
) / 1000000;
793 delay
-= s
->width
/ 2;
794 if (delay
< s
->width
)
797 i_start
= x
= compute_mod(s
->sample_array_index
- delay
* channels
, SAMPLE_ARRAY_SIZE
);
800 for(i
=0; i
<1000; i
+=channels
){
801 int idx
= (SAMPLE_ARRAY_SIZE
+ x
- i
) % SAMPLE_ARRAY_SIZE
;
802 int a
= s
->sample_array
[idx
];
803 int b
= s
->sample_array
[(idx
+ 4*channels
)%SAMPLE_ARRAY_SIZE
];
804 int c
= s
->sample_array
[(idx
+ 5*channels
)%SAMPLE_ARRAY_SIZE
];
805 int d
= s
->sample_array
[(idx
+ 9*channels
)%SAMPLE_ARRAY_SIZE
];
807 if(h
<score
&& (b
^c
)<0){
813 s
->last_i_start
= i_start
;
815 i_start
= s
->last_i_start
;
818 bgcolor
= SDL_MapRGB(screen
->format
, 0x00, 0x00, 0x00);
819 fill_rectangle(screen
,
820 s
->xleft
, s
->ytop
, s
->width
, s
->height
,
823 fgcolor
= SDL_MapRGB(screen
->format
, 0xff, 0xff, 0xff);
825 /* total height for one channel */
826 h
= s
->height
/ nb_display_channels
;
827 /* graph height / 2 */
829 for(ch
= 0;ch
< nb_display_channels
; ch
++) {
831 y1
= s
->ytop
+ ch
* h
+ (h
/ 2); /* position of center line */
832 for(x
= 0; x
< s
->width
; x
++) {
833 y
= (s
->sample_array
[i
] * h2
) >> 15;
840 fill_rectangle(screen
,
841 s
->xleft
+ x
, ys
, 1, y
,
844 if (i
>= SAMPLE_ARRAY_SIZE
)
845 i
-= SAMPLE_ARRAY_SIZE
;
849 fgcolor
= SDL_MapRGB(screen
->format
, 0x00, 0x00, 0xff);
851 for(ch
= 1;ch
< nb_display_channels
; ch
++) {
852 y
= s
->ytop
+ ch
* h
;
853 fill_rectangle(screen
,
854 s
->xleft
, y
, s
->width
, 1,
857 SDL_UpdateRect(screen
, s
->xleft
, s
->ytop
, s
->width
, s
->height
);
860 static int video_open(VideoState
*is
){
861 int flags
= SDL_HWSURFACE
|SDL_ASYNCBLIT
|SDL_HWACCEL
;
864 if(is_full_screen
) flags
|= SDL_FULLSCREEN
;
865 else flags
|= SDL_RESIZABLE
;
867 if (is_full_screen
&& fs_screen_width
) {
869 h
= fs_screen_height
;
870 } else if(!is_full_screen
&& screen_width
){
873 }else if (is
->video_st
&& is
->video_st
->codec
->width
){
874 w
= is
->video_st
->codec
->width
;
875 h
= is
->video_st
->codec
->height
;
881 screen
= SDL_SetVideoMode(w
, h
, 0, flags
);
883 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
884 screen
= SDL_SetVideoMode(w
, h
, 24, flags
);
887 fprintf(stderr
, "SDL: could not set video mode - exiting\n");
890 SDL_WM_SetCaption("FFplay", "FFplay");
892 is
->width
= screen
->w
;
893 is
->height
= screen
->h
;
898 /* display the current picture, if any */
899 static void video_display(VideoState
*is
)
902 video_open(cur_stream
);
903 if (is
->audio_st
&& is
->show_audio
)
904 video_audio_display(is
);
905 else if (is
->video_st
)
906 video_image_display(is
);
909 static Uint32
sdl_refresh_timer_cb(Uint32 interval
, void *opaque
)
912 event
.type
= FF_REFRESH_EVENT
;
913 event
.user
.data1
= opaque
;
914 SDL_PushEvent(&event
);
915 return 0; /* 0 means stop timer */
918 /* schedule a video refresh in 'delay' ms */
919 static void schedule_refresh(VideoState
*is
, int delay
)
921 if(!delay
) delay
=1; //SDL seems to be buggy when the delay is 0
922 SDL_AddTimer(delay
, sdl_refresh_timer_cb
, is
);
925 /* get the current audio clock value */
926 static double get_audio_clock(VideoState
*is
)
929 int hw_buf_size
, bytes_per_sec
;
930 pts
= is
->audio_clock
;
931 hw_buf_size
= audio_write_get_buf_size(is
);
934 bytes_per_sec
= is
->audio_st
->codec
->sample_rate
*
935 2 * is
->audio_st
->codec
->channels
;
938 pts
-= (double)hw_buf_size
/ bytes_per_sec
;
942 /* get the current video clock value */
943 static double get_video_clock(VideoState
*is
)
949 delta
= (av_gettime() - is
->video_current_pts_time
) / 1000000.0;
951 return is
->video_current_pts
+ delta
;
954 /* get the current external clock value */
955 static double get_external_clock(VideoState
*is
)
959 return is
->external_clock
+ ((ti
- is
->external_clock_time
) * 1e-6);
962 /* get the current master clock value */
963 static double get_master_clock(VideoState
*is
)
967 if (is
->av_sync_type
== AV_SYNC_VIDEO_MASTER
) {
969 val
= get_video_clock(is
);
971 val
= get_audio_clock(is
);
972 } else if (is
->av_sync_type
== AV_SYNC_AUDIO_MASTER
) {
974 val
= get_audio_clock(is
);
976 val
= get_video_clock(is
);
978 val
= get_external_clock(is
);
983 /* seek in the stream */
984 static void stream_seek(VideoState
*is
, int64_t pos
, int rel
)
988 is
->seek_flags
= rel
< 0 ? AVSEEK_FLAG_BACKWARD
: 0;
990 is
->seek_flags
|= AVSEEK_FLAG_BYTE
;
995 /* pause or resume the video */
996 static void stream_pause(VideoState
*is
)
998 is
->paused
= !is
->paused
;
1000 is
->video_current_pts
= get_video_clock(is
);
1001 is
->frame_timer
+= (av_gettime() - is
->video_current_pts_time
) / 1000000.0;
1005 /* called to display each frame */
1006 static void video_refresh_timer(void *opaque
)
1008 VideoState
*is
= opaque
;
1010 double actual_delay
, delay
, sync_threshold
, ref_clock
, diff
;
1012 SubPicture
*sp
, *sp2
;
1015 if (is
->pictq_size
== 0) {
1016 /* if no picture, need to wait */
1017 schedule_refresh(is
, 1);
1019 /* dequeue the picture */
1020 vp
= &is
->pictq
[is
->pictq_rindex
];
1022 /* update current video pts */
1023 is
->video_current_pts
= vp
->pts
;
1024 is
->video_current_pts_time
= av_gettime();
1026 /* compute nominal delay */
1027 delay
= vp
->pts
- is
->frame_last_pts
;
1028 if (delay
<= 0 || delay
>= 10.0) {
1029 /* if incorrect delay, use previous one */
1030 delay
= is
->frame_last_delay
;
1032 is
->frame_last_delay
= delay
;
1033 is
->frame_last_pts
= vp
->pts
;
1035 /* update delay to follow master synchronisation source */
1036 if (((is
->av_sync_type
== AV_SYNC_AUDIO_MASTER
&& is
->audio_st
) ||
1037 is
->av_sync_type
== AV_SYNC_EXTERNAL_CLOCK
)) {
1038 /* if video is slave, we try to correct big delays by
1039 duplicating or deleting a frame */
1040 ref_clock
= get_master_clock(is
);
1041 diff
= vp
->pts
- ref_clock
;
1043 /* skip or repeat frame. We take into account the
1044 delay to compute the threshold. I still don't know
1045 if it is the best guess */
1046 sync_threshold
= FFMAX(AV_SYNC_THRESHOLD
, delay
);
1047 if (fabs(diff
) < AV_NOSYNC_THRESHOLD
) {
1048 if (diff
<= -sync_threshold
)
1050 else if (diff
>= sync_threshold
)
1055 is
->frame_timer
+= delay
;
1056 /* compute the REAL delay (we need to do that to avoid
1058 actual_delay
= is
->frame_timer
- (av_gettime() / 1000000.0);
1059 if (actual_delay
< 0.010) {
1060 /* XXX: should skip picture */
1061 actual_delay
= 0.010;
1063 /* launch timer for next picture */
1064 schedule_refresh(is
, (int)(actual_delay
* 1000 + 0.5));
1066 #if defined(DEBUG_SYNC)
1067 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1068 delay
, actual_delay
, vp
->pts
, -diff
);
1071 if(is
->subtitle_st
) {
1072 if (is
->subtitle_stream_changed
) {
1073 SDL_LockMutex(is
->subpq_mutex
);
1075 while (is
->subpq_size
) {
1076 free_subpicture(&is
->subpq
[is
->subpq_rindex
]);
1078 /* update queue size and signal for next picture */
1079 if (++is
->subpq_rindex
== SUBPICTURE_QUEUE_SIZE
)
1080 is
->subpq_rindex
= 0;
1084 is
->subtitle_stream_changed
= 0;
1086 SDL_CondSignal(is
->subpq_cond
);
1087 SDL_UnlockMutex(is
->subpq_mutex
);
1089 if (is
->subpq_size
> 0) {
1090 sp
= &is
->subpq
[is
->subpq_rindex
];
1092 if (is
->subpq_size
> 1)
1093 sp2
= &is
->subpq
[(is
->subpq_rindex
+ 1) % SUBPICTURE_QUEUE_SIZE
];
1097 if ((is
->video_current_pts
> (sp
->pts
+ ((float) sp
->sub
.end_display_time
/ 1000)))
1098 || (sp2
&& is
->video_current_pts
> (sp2
->pts
+ ((float) sp2
->sub
.start_display_time
/ 1000))))
1100 free_subpicture(sp
);
1102 /* update queue size and signal for next picture */
1103 if (++is
->subpq_rindex
== SUBPICTURE_QUEUE_SIZE
)
1104 is
->subpq_rindex
= 0;
1106 SDL_LockMutex(is
->subpq_mutex
);
1108 SDL_CondSignal(is
->subpq_cond
);
1109 SDL_UnlockMutex(is
->subpq_mutex
);
1115 /* display picture */
1118 /* update queue size and signal for next picture */
1119 if (++is
->pictq_rindex
== VIDEO_PICTURE_QUEUE_SIZE
)
1120 is
->pictq_rindex
= 0;
1122 SDL_LockMutex(is
->pictq_mutex
);
1124 SDL_CondSignal(is
->pictq_cond
);
1125 SDL_UnlockMutex(is
->pictq_mutex
);
1127 } else if (is
->audio_st
) {
1128 /* draw the next audio frame */
1130 schedule_refresh(is
, 40);
1132 /* if only audio stream, then display the audio bars (better
1133 than nothing, just to test the implementation */
1135 /* display picture */
1138 schedule_refresh(is
, 100);
1141 static int64_t last_time
;
1143 int aqsize
, vqsize
, sqsize
;
1146 cur_time
= av_gettime();
1147 if (!last_time
|| (cur_time
- last_time
) >= 500 * 1000) {
1152 aqsize
= is
->audioq
.size
;
1154 vqsize
= is
->videoq
.size
;
1155 if (is
->subtitle_st
)
1156 sqsize
= is
->subtitleq
.size
;
1158 if (is
->audio_st
&& is
->video_st
)
1159 av_diff
= get_audio_clock(is
) - get_video_clock(is
);
1160 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB \r",
1161 get_master_clock(is
), av_diff
, aqsize
/ 1024, vqsize
/ 1024, sqsize
);
1163 last_time
= cur_time
;
1168 /* allocate a picture (needs to do that in main thread to avoid
1169 potential locking problems */
1170 static void alloc_picture(void *opaque
)
1172 VideoState
*is
= opaque
;
1175 vp
= &is
->pictq
[is
->pictq_windex
];
1178 SDL_FreeYUVOverlay(vp
->bmp
);
1181 /* XXX: use generic function */
1182 /* XXX: disable overlay if no hardware acceleration or if RGB format */
1183 switch(is
->video_st
->codec
->pix_fmt
) {
1184 case PIX_FMT_YUV420P
:
1185 case PIX_FMT_YUV422P
:
1186 case PIX_FMT_YUV444P
:
1187 case PIX_FMT_YUYV422
:
1188 case PIX_FMT_YUV410P
:
1189 case PIX_FMT_YUV411P
:
1197 vp
->bmp
= SDL_CreateYUVOverlay(is
->video_st
->codec
->width
,
1198 is
->video_st
->codec
->height
,
1201 vp
->width
= is
->video_st
->codec
->width
;
1202 vp
->height
= is
->video_st
->codec
->height
;
1204 SDL_LockMutex(is
->pictq_mutex
);
1206 SDL_CondSignal(is
->pictq_cond
);
1207 SDL_UnlockMutex(is
->pictq_mutex
);
1212 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1214 static int queue_picture(VideoState
*is
, AVFrame
*src_frame
, double pts
)
1219 static struct SwsContext
*img_convert_ctx
;
1221 /* wait until we have space to put a new picture */
1222 SDL_LockMutex(is
->pictq_mutex
);
1223 while (is
->pictq_size
>= VIDEO_PICTURE_QUEUE_SIZE
&&
1224 !is
->videoq
.abort_request
) {
1225 SDL_CondWait(is
->pictq_cond
, is
->pictq_mutex
);
1227 SDL_UnlockMutex(is
->pictq_mutex
);
1229 if (is
->videoq
.abort_request
)
1232 vp
= &is
->pictq
[is
->pictq_windex
];
1234 /* alloc or resize hardware picture buffer */
1236 vp
->width
!= is
->video_st
->codec
->width
||
1237 vp
->height
!= is
->video_st
->codec
->height
) {
1242 /* the allocation must be done in the main thread to avoid
1244 event
.type
= FF_ALLOC_EVENT
;
1245 event
.user
.data1
= is
;
1246 SDL_PushEvent(&event
);
1248 /* wait until the picture is allocated */
1249 SDL_LockMutex(is
->pictq_mutex
);
1250 while (!vp
->allocated
&& !is
->videoq
.abort_request
) {
1251 SDL_CondWait(is
->pictq_cond
, is
->pictq_mutex
);
1253 SDL_UnlockMutex(is
->pictq_mutex
);
1255 if (is
->videoq
.abort_request
)
1259 /* if the frame is not skipped, then display it */
1261 /* get a pointer on the bitmap */
1262 SDL_LockYUVOverlay (vp
->bmp
);
1264 dst_pix_fmt
= PIX_FMT_YUV420P
;
1265 pict
.data
[0] = vp
->bmp
->pixels
[0];
1266 pict
.data
[1] = vp
->bmp
->pixels
[2];
1267 pict
.data
[2] = vp
->bmp
->pixels
[1];
1269 pict
.linesize
[0] = vp
->bmp
->pitches
[0];
1270 pict
.linesize
[1] = vp
->bmp
->pitches
[2];
1271 pict
.linesize
[2] = vp
->bmp
->pitches
[1];
1272 sws_flags
= av_get_int(sws_opts
, "sws_flags", NULL
);
1273 img_convert_ctx
= sws_getCachedContext(img_convert_ctx
,
1274 is
->video_st
->codec
->width
, is
->video_st
->codec
->height
,
1275 is
->video_st
->codec
->pix_fmt
,
1276 is
->video_st
->codec
->width
, is
->video_st
->codec
->height
,
1277 dst_pix_fmt
, sws_flags
, NULL
, NULL
, NULL
);
1278 if (img_convert_ctx
== NULL
) {
1279 fprintf(stderr
, "Cannot initialize the conversion context\n");
1282 sws_scale(img_convert_ctx
, src_frame
->data
, src_frame
->linesize
,
1283 0, is
->video_st
->codec
->height
, pict
.data
, pict
.linesize
);
1284 /* update the bitmap content */
1285 SDL_UnlockYUVOverlay(vp
->bmp
);
1289 /* now we can update the picture count */
1290 if (++is
->pictq_windex
== VIDEO_PICTURE_QUEUE_SIZE
)
1291 is
->pictq_windex
= 0;
1292 SDL_LockMutex(is
->pictq_mutex
);
1294 SDL_UnlockMutex(is
->pictq_mutex
);
1300 * compute the exact PTS for the picture if it is omitted in the stream
1301 * @param pts1 the dts of the pkt / pts of the frame
1303 static int output_picture2(VideoState
*is
, AVFrame
*src_frame
, double pts1
)
1305 double frame_delay
, pts
;
1310 /* update video clock with pts, if present */
1311 is
->video_clock
= pts
;
1313 pts
= is
->video_clock
;
1315 /* update video clock for next frame */
1316 frame_delay
= av_q2d(is
->video_st
->codec
->time_base
);
1317 /* for MPEG2, the frame can be repeated, so we update the
1318 clock accordingly */
1319 frame_delay
+= src_frame
->repeat_pict
* (frame_delay
* 0.5);
1320 is
->video_clock
+= frame_delay
;
1322 #if defined(DEBUG_SYNC) && 0
1325 if (src_frame
->pict_type
== FF_B_TYPE
)
1327 else if (src_frame
->pict_type
== FF_I_TYPE
)
1331 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1335 return queue_picture(is
, src_frame
, pts
);
1338 static int video_thread(void *arg
)
1340 VideoState
*is
= arg
;
1341 AVPacket pkt1
, *pkt
= &pkt1
;
1342 int len1
, got_picture
;
1343 AVFrame
*frame
= avcodec_alloc_frame();
1347 while (is
->paused
&& !is
->videoq
.abort_request
) {
1350 if (packet_queue_get(&is
->videoq
, pkt
, 1) < 0)
1353 if(pkt
->data
== flush_pkt
.data
){
1354 avcodec_flush_buffers(is
->video_st
->codec
);
1358 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1359 this packet, if any */
1360 is
->video_st
->codec
->reordered_opaque
= pkt
->pts
;
1361 len1
= avcodec_decode_video(is
->video_st
->codec
,
1362 frame
, &got_picture
,
1363 pkt
->data
, pkt
->size
);
1365 if( (decoder_reorder_pts
|| pkt
->dts
== AV_NOPTS_VALUE
)
1366 && frame
->reordered_opaque
!= AV_NOPTS_VALUE
)
1367 pts
= frame
->reordered_opaque
;
1368 else if(pkt
->dts
!= AV_NOPTS_VALUE
)
1372 pts
*= av_q2d(is
->video_st
->time_base
);
1377 if (output_picture2(is
, frame
, pts
) < 0)
1380 av_free_packet(pkt
);
1383 stream_pause(cur_stream
);
1390 static int subtitle_thread(void *arg
)
1392 VideoState
*is
= arg
;
1394 AVPacket pkt1
, *pkt
= &pkt1
;
1395 int len1
, got_subtitle
;
1398 int r
, g
, b
, y
, u
, v
, a
;
1401 while (is
->paused
&& !is
->subtitleq
.abort_request
) {
1404 if (packet_queue_get(&is
->subtitleq
, pkt
, 1) < 0)
1407 if(pkt
->data
== flush_pkt
.data
){
1408 avcodec_flush_buffers(is
->subtitle_st
->codec
);
1411 SDL_LockMutex(is
->subpq_mutex
);
1412 while (is
->subpq_size
>= SUBPICTURE_QUEUE_SIZE
&&
1413 !is
->subtitleq
.abort_request
) {
1414 SDL_CondWait(is
->subpq_cond
, is
->subpq_mutex
);
1416 SDL_UnlockMutex(is
->subpq_mutex
);
1418 if (is
->subtitleq
.abort_request
)
1421 sp
= &is
->subpq
[is
->subpq_windex
];
1423 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1424 this packet, if any */
1426 if (pkt
->pts
!= AV_NOPTS_VALUE
)
1427 pts
= av_q2d(is
->subtitle_st
->time_base
)*pkt
->pts
;
1429 len1
= avcodec_decode_subtitle(is
->subtitle_st
->codec
,
1430 &sp
->sub
, &got_subtitle
,
1431 pkt
->data
, pkt
->size
);
1434 if (got_subtitle
&& sp
->sub
.format
== 0) {
1437 for (i
= 0; i
< sp
->sub
.num_rects
; i
++)
1439 for (j
= 0; j
< sp
->sub
.rects
[i
]->nb_colors
; j
++)
1441 RGBA_IN(r
, g
, b
, a
, (uint32_t*)sp
->sub
.rects
[i
]->pict
.data
[1] + j
);
1442 y
= RGB_TO_Y_CCIR(r
, g
, b
);
1443 u
= RGB_TO_U_CCIR(r
, g
, b
, 0);
1444 v
= RGB_TO_V_CCIR(r
, g
, b
, 0);
1445 YUVA_OUT((uint32_t*)sp
->sub
.rects
[i
]->pict
.data
[1] + j
, y
, u
, v
, a
);
1449 /* now we can update the picture count */
1450 if (++is
->subpq_windex
== SUBPICTURE_QUEUE_SIZE
)
1451 is
->subpq_windex
= 0;
1452 SDL_LockMutex(is
->subpq_mutex
);
1454 SDL_UnlockMutex(is
->subpq_mutex
);
1456 av_free_packet(pkt
);
1459 // stream_pause(cur_stream);
1465 /* copy samples for viewing in editor window */
1466 static void update_sample_display(VideoState
*is
, short *samples
, int samples_size
)
1468 int size
, len
, channels
;
1470 channels
= is
->audio_st
->codec
->channels
;
1472 size
= samples_size
/ sizeof(short);
1474 len
= SAMPLE_ARRAY_SIZE
- is
->sample_array_index
;
1477 memcpy(is
->sample_array
+ is
->sample_array_index
, samples
, len
* sizeof(short));
1479 is
->sample_array_index
+= len
;
1480 if (is
->sample_array_index
>= SAMPLE_ARRAY_SIZE
)
1481 is
->sample_array_index
= 0;
1486 /* return the new audio buffer size (samples can be added or deleted
1487 to get better sync if video or external master clock) */
1488 static int synchronize_audio(VideoState
*is
, short *samples
,
1489 int samples_size1
, double pts
)
1491 int n
, samples_size
;
1494 n
= 2 * is
->audio_st
->codec
->channels
;
1495 samples_size
= samples_size1
;
1497 /* if not master, then we try to remove or add samples to correct the clock */
1498 if (((is
->av_sync_type
== AV_SYNC_VIDEO_MASTER
&& is
->video_st
) ||
1499 is
->av_sync_type
== AV_SYNC_EXTERNAL_CLOCK
)) {
1500 double diff
, avg_diff
;
1501 int wanted_size
, min_size
, max_size
, nb_samples
;
1503 ref_clock
= get_master_clock(is
);
1504 diff
= get_audio_clock(is
) - ref_clock
;
1506 if (diff
< AV_NOSYNC_THRESHOLD
) {
1507 is
->audio_diff_cum
= diff
+ is
->audio_diff_avg_coef
* is
->audio_diff_cum
;
1508 if (is
->audio_diff_avg_count
< AUDIO_DIFF_AVG_NB
) {
1509 /* not enough measures to have a correct estimate */
1510 is
->audio_diff_avg_count
++;
1512 /* estimate the A-V difference */
1513 avg_diff
= is
->audio_diff_cum
* (1.0 - is
->audio_diff_avg_coef
);
1515 if (fabs(avg_diff
) >= is
->audio_diff_threshold
) {
1516 wanted_size
= samples_size
+ ((int)(diff
* is
->audio_st
->codec
->sample_rate
) * n
);
1517 nb_samples
= samples_size
/ n
;
1519 min_size
= ((nb_samples
* (100 - SAMPLE_CORRECTION_PERCENT_MAX
)) / 100) * n
;
1520 max_size
= ((nb_samples
* (100 + SAMPLE_CORRECTION_PERCENT_MAX
)) / 100) * n
;
1521 if (wanted_size
< min_size
)
1522 wanted_size
= min_size
;
1523 else if (wanted_size
> max_size
)
1524 wanted_size
= max_size
;
1526 /* add or remove samples to correction the synchro */
1527 if (wanted_size
< samples_size
) {
1528 /* remove samples */
1529 samples_size
= wanted_size
;
1530 } else if (wanted_size
> samples_size
) {
1531 uint8_t *samples_end
, *q
;
1535 nb
= (samples_size
- wanted_size
);
1536 samples_end
= (uint8_t *)samples
+ samples_size
- n
;
1537 q
= samples_end
+ n
;
1539 memcpy(q
, samples_end
, n
);
1543 samples_size
= wanted_size
;
1547 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1548 diff
, avg_diff
, samples_size
- samples_size1
,
1549 is
->audio_clock
, is
->video_clock
, is
->audio_diff_threshold
);
1553 /* too big difference : may be initial PTS errors, so
1555 is
->audio_diff_avg_count
= 0;
1556 is
->audio_diff_cum
= 0;
1560 return samples_size
;
1563 /* decode one audio frame and returns its uncompressed size */
1564 static int audio_decode_frame(VideoState
*is
, double *pts_ptr
)
1566 AVPacket
*pkt
= &is
->audio_pkt
;
1567 AVCodecContext
*dec
= is
->audio_st
->codec
;
1568 int n
, len1
, data_size
;
1572 /* NOTE: the audio packet can contain several frames */
1573 while (is
->audio_pkt_size
> 0) {
1574 data_size
= sizeof(is
->audio_buf1
);
1575 len1
= avcodec_decode_audio2(dec
,
1576 (int16_t *)is
->audio_buf1
, &data_size
,
1577 is
->audio_pkt_data
, is
->audio_pkt_size
);
1579 /* if error, we skip the frame */
1580 is
->audio_pkt_size
= 0;
1584 is
->audio_pkt_data
+= len1
;
1585 is
->audio_pkt_size
-= len1
;
1589 if (dec
->sample_fmt
!= is
->audio_src_fmt
) {
1590 if (is
->reformat_ctx
)
1591 av_audio_convert_free(is
->reformat_ctx
);
1592 is
->reformat_ctx
= av_audio_convert_alloc(SAMPLE_FMT_S16
, 1,
1593 dec
->sample_fmt
, 1, NULL
, 0);
1594 if (!is
->reformat_ctx
) {
1595 fprintf(stderr
, "Cannot convert %s sample format to %s sample format\n",
1596 avcodec_get_sample_fmt_name(dec
->sample_fmt
),
1597 avcodec_get_sample_fmt_name(SAMPLE_FMT_S16
));
1600 is
->audio_src_fmt
= dec
->sample_fmt
;
1603 if (is
->reformat_ctx
) {
1604 const void *ibuf
[6]= {is
->audio_buf1
};
1605 void *obuf
[6]= {is
->audio_buf2
};
1606 int istride
[6]= {av_get_bits_per_sample_format(dec
->sample_fmt
)/8};
1607 int ostride
[6]= {2};
1608 int len
= data_size
/istride
[0];
1609 if (av_audio_convert(is
->reformat_ctx
, obuf
, ostride
, ibuf
, istride
, len
)<0) {
1610 printf("av_audio_convert() failed\n");
1613 is
->audio_buf
= is
->audio_buf2
;
1614 /* FIXME: existing code assume that data_size equals framesize*channels*2
1615 remove this legacy cruft */
1618 is
->audio_buf
= is
->audio_buf1
;
1621 /* if no pts, then compute it */
1622 pts
= is
->audio_clock
;
1624 n
= 2 * dec
->channels
;
1625 is
->audio_clock
+= (double)data_size
/
1626 (double)(n
* dec
->sample_rate
);
1627 #if defined(DEBUG_SYNC)
1629 static double last_clock
;
1630 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1631 is
->audio_clock
- last_clock
,
1632 is
->audio_clock
, pts
);
1633 last_clock
= is
->audio_clock
;
1639 /* free the current packet */
1641 av_free_packet(pkt
);
1643 if (is
->paused
|| is
->audioq
.abort_request
) {
1647 /* read next packet */
1648 if (packet_queue_get(&is
->audioq
, pkt
, 1) < 0)
1650 if(pkt
->data
== flush_pkt
.data
){
1651 avcodec_flush_buffers(dec
);
1655 is
->audio_pkt_data
= pkt
->data
;
1656 is
->audio_pkt_size
= pkt
->size
;
1658 /* if update the audio clock with the pts */
1659 if (pkt
->pts
!= AV_NOPTS_VALUE
) {
1660 is
->audio_clock
= av_q2d(is
->audio_st
->time_base
)*pkt
->pts
;
1665 /* get the current audio output buffer size, in samples. With SDL, we
1666 cannot have a precise information */
1667 static int audio_write_get_buf_size(VideoState
*is
)
1669 return is
->audio_buf_size
- is
->audio_buf_index
;
1673 /* prepare a new audio buffer */
1674 static void sdl_audio_callback(void *opaque
, Uint8
*stream
, int len
)
1676 VideoState
*is
= opaque
;
1677 int audio_size
, len1
;
1680 audio_callback_time
= av_gettime();
1683 if (is
->audio_buf_index
>= is
->audio_buf_size
) {
1684 audio_size
= audio_decode_frame(is
, &pts
);
1685 if (audio_size
< 0) {
1686 /* if error, just output silence */
1687 is
->audio_buf
= is
->audio_buf1
;
1688 is
->audio_buf_size
= 1024;
1689 memset(is
->audio_buf
, 0, is
->audio_buf_size
);
1692 update_sample_display(is
, (int16_t *)is
->audio_buf
, audio_size
);
1693 audio_size
= synchronize_audio(is
, (int16_t *)is
->audio_buf
, audio_size
,
1695 is
->audio_buf_size
= audio_size
;
1697 is
->audio_buf_index
= 0;
1699 len1
= is
->audio_buf_size
- is
->audio_buf_index
;
1702 memcpy(stream
, (uint8_t *)is
->audio_buf
+ is
->audio_buf_index
, len1
);
1705 is
->audio_buf_index
+= len1
;
1709 /* open a given stream. Return 0 if OK */
1710 static int stream_component_open(VideoState
*is
, int stream_index
)
1712 AVFormatContext
*ic
= is
->ic
;
1713 AVCodecContext
*enc
;
1715 SDL_AudioSpec wanted_spec
, spec
;
1717 if (stream_index
< 0 || stream_index
>= ic
->nb_streams
)
1719 enc
= ic
->streams
[stream_index
]->codec
;
1721 /* prepare audio output */
1722 if (enc
->codec_type
== CODEC_TYPE_AUDIO
) {
1723 if (enc
->channels
> 0) {
1724 enc
->request_channels
= FFMIN(2, enc
->channels
);
1726 enc
->request_channels
= 2;
1730 codec
= avcodec_find_decoder(enc
->codec_id
);
1731 enc
->debug_mv
= debug_mv
;
1733 enc
->workaround_bugs
= workaround_bugs
;
1734 enc
->lowres
= lowres
;
1735 if(lowres
) enc
->flags
|= CODEC_FLAG_EMU_EDGE
;
1736 enc
->idct_algo
= idct
;
1737 if(fast
) enc
->flags2
|= CODEC_FLAG2_FAST
;
1738 enc
->skip_frame
= skip_frame
;
1739 enc
->skip_idct
= skip_idct
;
1740 enc
->skip_loop_filter
= skip_loop_filter
;
1741 enc
->error_recognition
= error_recognition
;
1742 enc
->error_concealment
= error_concealment
;
1744 set_context_opts(enc
, avctx_opts
[enc
->codec_type
], 0);
1747 avcodec_open(enc
, codec
) < 0)
1750 /* prepare audio output */
1751 if (enc
->codec_type
== CODEC_TYPE_AUDIO
) {
1752 wanted_spec
.freq
= enc
->sample_rate
;
1753 wanted_spec
.format
= AUDIO_S16SYS
;
1754 wanted_spec
.channels
= enc
->channels
;
1755 wanted_spec
.silence
= 0;
1756 wanted_spec
.samples
= SDL_AUDIO_BUFFER_SIZE
;
1757 wanted_spec
.callback
= sdl_audio_callback
;
1758 wanted_spec
.userdata
= is
;
1759 if (SDL_OpenAudio(&wanted_spec
, &spec
) < 0) {
1760 fprintf(stderr
, "SDL_OpenAudio: %s\n", SDL_GetError());
1763 is
->audio_hw_buf_size
= spec
.size
;
1764 is
->audio_src_fmt
= SAMPLE_FMT_S16
;
1768 avcodec_thread_init(enc
, thread_count
);
1769 enc
->thread_count
= thread_count
;
1770 ic
->streams
[stream_index
]->discard
= AVDISCARD_DEFAULT
;
1771 switch(enc
->codec_type
) {
1772 case CODEC_TYPE_AUDIO
:
1773 is
->audio_stream
= stream_index
;
1774 is
->audio_st
= ic
->streams
[stream_index
];
1775 is
->audio_buf_size
= 0;
1776 is
->audio_buf_index
= 0;
1778 /* init averaging filter */
1779 is
->audio_diff_avg_coef
= exp(log(0.01) / AUDIO_DIFF_AVG_NB
);
1780 is
->audio_diff_avg_count
= 0;
1781 /* since we do not have a precise anough audio fifo fullness,
1782 we correct audio sync only if larger than this threshold */
1783 is
->audio_diff_threshold
= 2.0 * SDL_AUDIO_BUFFER_SIZE
/ enc
->sample_rate
;
1785 memset(&is
->audio_pkt
, 0, sizeof(is
->audio_pkt
));
1786 packet_queue_init(&is
->audioq
);
1789 case CODEC_TYPE_VIDEO
:
1790 is
->video_stream
= stream_index
;
1791 is
->video_st
= ic
->streams
[stream_index
];
1793 is
->frame_last_delay
= 40e-3;
1794 is
->frame_timer
= (double)av_gettime() / 1000000.0;
1795 is
->video_current_pts_time
= av_gettime();
1797 packet_queue_init(&is
->videoq
);
1798 is
->video_tid
= SDL_CreateThread(video_thread
, is
);
1800 case CODEC_TYPE_SUBTITLE
:
1801 is
->subtitle_stream
= stream_index
;
1802 is
->subtitle_st
= ic
->streams
[stream_index
];
1803 packet_queue_init(&is
->subtitleq
);
1805 is
->subtitle_tid
= SDL_CreateThread(subtitle_thread
, is
);
1813 static void stream_component_close(VideoState
*is
, int stream_index
)
1815 AVFormatContext
*ic
= is
->ic
;
1816 AVCodecContext
*enc
;
1818 if (stream_index
< 0 || stream_index
>= ic
->nb_streams
)
1820 enc
= ic
->streams
[stream_index
]->codec
;
1822 switch(enc
->codec_type
) {
1823 case CODEC_TYPE_AUDIO
:
1824 packet_queue_abort(&is
->audioq
);
1828 packet_queue_end(&is
->audioq
);
1829 if (is
->reformat_ctx
)
1830 av_audio_convert_free(is
->reformat_ctx
);
1832 case CODEC_TYPE_VIDEO
:
1833 packet_queue_abort(&is
->videoq
);
1835 /* note: we also signal this mutex to make sure we deblock the
1836 video thread in all cases */
1837 SDL_LockMutex(is
->pictq_mutex
);
1838 SDL_CondSignal(is
->pictq_cond
);
1839 SDL_UnlockMutex(is
->pictq_mutex
);
1841 SDL_WaitThread(is
->video_tid
, NULL
);
1843 packet_queue_end(&is
->videoq
);
1845 case CODEC_TYPE_SUBTITLE
:
1846 packet_queue_abort(&is
->subtitleq
);
1848 /* note: we also signal this mutex to make sure we deblock the
1849 video thread in all cases */
1850 SDL_LockMutex(is
->subpq_mutex
);
1851 is
->subtitle_stream_changed
= 1;
1853 SDL_CondSignal(is
->subpq_cond
);
1854 SDL_UnlockMutex(is
->subpq_mutex
);
1856 SDL_WaitThread(is
->subtitle_tid
, NULL
);
1858 packet_queue_end(&is
->subtitleq
);
1864 ic
->streams
[stream_index
]->discard
= AVDISCARD_ALL
;
1866 switch(enc
->codec_type
) {
1867 case CODEC_TYPE_AUDIO
:
1868 is
->audio_st
= NULL
;
1869 is
->audio_stream
= -1;
1871 case CODEC_TYPE_VIDEO
:
1872 is
->video_st
= NULL
;
1873 is
->video_stream
= -1;
1875 case CODEC_TYPE_SUBTITLE
:
1876 is
->subtitle_st
= NULL
;
1877 is
->subtitle_stream
= -1;
1884 static void dump_stream_info(const AVFormatContext
*s
)
1887 fprintf(stderr
, "Track: %d\n", s
->track
);
1888 if (s
->title
[0] != '\0')
1889 fprintf(stderr
, "Title: %s\n", s
->title
);
1890 if (s
->author
[0] != '\0')
1891 fprintf(stderr
, "Author: %s\n", s
->author
);
1892 if (s
->copyright
[0] != '\0')
1893 fprintf(stderr
, "Copyright: %s\n", s
->copyright
);
1894 if (s
->comment
[0] != '\0')
1895 fprintf(stderr
, "Comment: %s\n", s
->comment
);
1896 if (s
->album
[0] != '\0')
1897 fprintf(stderr
, "Album: %s\n", s
->album
);
1899 fprintf(stderr
, "Year: %d\n", s
->year
);
1900 if (s
->genre
[0] != '\0')
1901 fprintf(stderr
, "Genre: %s\n", s
->genre
);
1904 /* since we have only one decoding thread, we can use a global
1905 variable instead of a thread local variable */
1906 static VideoState
*global_video_state
;
1908 static int decode_interrupt_cb(void)
1910 return (global_video_state
&& global_video_state
->abort_request
);
1913 /* this thread gets the stream from the disk or the network */
1914 static int decode_thread(void *arg
)
1916 VideoState
*is
= arg
;
1917 AVFormatContext
*ic
;
1918 int err
, i
, ret
, video_index
, audio_index
;
1919 AVPacket pkt1
, *pkt
= &pkt1
;
1920 AVFormatParameters params
, *ap
= ¶ms
;
1924 is
->video_stream
= -1;
1925 is
->audio_stream
= -1;
1926 is
->subtitle_stream
= -1;
1928 global_video_state
= is
;
1929 url_set_interrupt_cb(decode_interrupt_cb
);
1931 memset(ap
, 0, sizeof(*ap
));
1933 ap
->width
= frame_width
;
1934 ap
->height
= frame_height
;
1935 ap
->time_base
= (AVRational
){1, 25};
1936 ap
->pix_fmt
= frame_pix_fmt
;
1938 err
= av_open_input_file(&ic
, is
->filename
, is
->iformat
, 0, ap
);
1940 print_error(is
->filename
, err
);
1947 ic
->flags
|= AVFMT_FLAG_GENPTS
;
1949 err
= av_find_stream_info(ic
);
1951 fprintf(stderr
, "%s: could not find codec parameters\n", is
->filename
);
1956 ic
->pb
->eof_reached
= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
1958 /* if seeking requested, we execute it */
1959 if (start_time
!= AV_NOPTS_VALUE
) {
1962 timestamp
= start_time
;
1963 /* add the stream start time */
1964 if (ic
->start_time
!= AV_NOPTS_VALUE
)
1965 timestamp
+= ic
->start_time
;
1966 ret
= av_seek_frame(ic
, -1, timestamp
, AVSEEK_FLAG_BACKWARD
);
1968 fprintf(stderr
, "%s: could not seek to position %0.3f\n",
1969 is
->filename
, (double)timestamp
/ AV_TIME_BASE
);
1973 for(i
= 0; i
< ic
->nb_streams
; i
++) {
1974 AVCodecContext
*enc
= ic
->streams
[i
]->codec
;
1975 ic
->streams
[i
]->discard
= AVDISCARD_ALL
;
1976 switch(enc
->codec_type
) {
1977 case CODEC_TYPE_AUDIO
:
1978 if ((audio_index
< 0 || wanted_audio_stream
-- > 0) && !audio_disable
)
1981 case CODEC_TYPE_VIDEO
:
1982 if ((video_index
< 0 || wanted_video_stream
-- > 0) && !video_disable
)
1990 dump_format(ic
, 0, is
->filename
, 0);
1991 dump_stream_info(ic
);
1994 /* open the streams */
1995 if (audio_index
>= 0) {
1996 stream_component_open(is
, audio_index
);
1999 if (video_index
>= 0) {
2000 stream_component_open(is
, video_index
);
2002 if (!display_disable
)
2006 if (is
->video_stream
< 0 && is
->audio_stream
< 0) {
2007 fprintf(stderr
, "%s: could not open codecs\n", is
->filename
);
2013 if (is
->abort_request
)
2015 if (is
->paused
!= is
->last_paused
) {
2016 is
->last_paused
= is
->paused
;
2022 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
2024 (!strcmp(ic
->iformat
->name
, "rtsp") ||
2025 (ic
->pb
&& !strcmp(url_fileno(ic
->pb
)->prot
->name
, "mmsh")))) {
2026 /* wait 10 ms to avoid trying to get another packet */
2033 int stream_index
= -1;
2034 int64_t seek_target
= is
->seek_pos
;
2036 if (is
-> video_stream
>= 0) stream_index
= is
-> video_stream
;
2037 else if(is
-> audio_stream
>= 0) stream_index
= is
-> audio_stream
;
2038 else if(is
->subtitle_stream
>= 0) stream_index
= is
->subtitle_stream
;
2040 if(stream_index
>=0){
2041 seek_target
= av_rescale_q(seek_target
, AV_TIME_BASE_Q
, ic
->streams
[stream_index
]->time_base
);
2044 ret
= av_seek_frame(is
->ic
, stream_index
, seek_target
, is
->seek_flags
);
2046 fprintf(stderr
, "%s: error while seeking\n", is
->ic
->filename
);
2048 if (is
->audio_stream
>= 0) {
2049 packet_queue_flush(&is
->audioq
);
2050 packet_queue_put(&is
->audioq
, &flush_pkt
);
2052 if (is
->subtitle_stream
>= 0) {
2053 packet_queue_flush(&is
->subtitleq
);
2054 packet_queue_put(&is
->subtitleq
, &flush_pkt
);
2056 if (is
->video_stream
>= 0) {
2057 packet_queue_flush(&is
->videoq
);
2058 packet_queue_put(&is
->videoq
, &flush_pkt
);
2064 /* if the queue are full, no need to read more */
2065 if (is
->audioq
.size
> MAX_AUDIOQ_SIZE
||
2066 is
->videoq
.size
> MAX_VIDEOQ_SIZE
||
2067 is
->subtitleq
.size
> MAX_SUBTITLEQ_SIZE
) {
2072 if(url_feof(ic
->pb
)) {
2073 av_init_packet(pkt
);
2076 pkt
->stream_index
= is
->video_stream
;
2077 packet_queue_put(&is
->videoq
, pkt
);
2080 ret
= av_read_frame(ic
, pkt
);
2082 if (url_ferror(ic
->pb
) == 0) {
2083 SDL_Delay(100); /* wait for user event */
2088 if (pkt
->stream_index
== is
->audio_stream
) {
2089 packet_queue_put(&is
->audioq
, pkt
);
2090 } else if (pkt
->stream_index
== is
->video_stream
) {
2091 packet_queue_put(&is
->videoq
, pkt
);
2092 } else if (pkt
->stream_index
== is
->subtitle_stream
) {
2093 packet_queue_put(&is
->subtitleq
, pkt
);
2095 av_free_packet(pkt
);
2098 /* wait until the end */
2099 while (!is
->abort_request
) {
2105 /* disable interrupting */
2106 global_video_state
= NULL
;
2108 /* close each stream */
2109 if (is
->audio_stream
>= 0)
2110 stream_component_close(is
, is
->audio_stream
);
2111 if (is
->video_stream
>= 0)
2112 stream_component_close(is
, is
->video_stream
);
2113 if (is
->subtitle_stream
>= 0)
2114 stream_component_close(is
, is
->subtitle_stream
);
2116 av_close_input_file(is
->ic
);
2117 is
->ic
= NULL
; /* safety */
2119 url_set_interrupt_cb(NULL
);
2124 event
.type
= FF_QUIT_EVENT
;
2125 event
.user
.data1
= is
;
2126 SDL_PushEvent(&event
);
2131 static VideoState
*stream_open(const char *filename
, AVInputFormat
*iformat
)
2135 is
= av_mallocz(sizeof(VideoState
));
2138 av_strlcpy(is
->filename
, filename
, sizeof(is
->filename
));
2139 is
->iformat
= iformat
;
2143 /* start video display */
2144 is
->pictq_mutex
= SDL_CreateMutex();
2145 is
->pictq_cond
= SDL_CreateCond();
2147 is
->subpq_mutex
= SDL_CreateMutex();
2148 is
->subpq_cond
= SDL_CreateCond();
2150 /* add the refresh timer to draw the picture */
2151 schedule_refresh(is
, 40);
2153 is
->av_sync_type
= av_sync_type
;
2154 is
->parse_tid
= SDL_CreateThread(decode_thread
, is
);
2155 if (!is
->parse_tid
) {
2162 static void stream_close(VideoState
*is
)
2166 /* XXX: use a special url_shutdown call to abort parse cleanly */
2167 is
->abort_request
= 1;
2168 SDL_WaitThread(is
->parse_tid
, NULL
);
2170 /* free all pictures */
2171 for(i
=0;i
<VIDEO_PICTURE_QUEUE_SIZE
; i
++) {
2174 SDL_FreeYUVOverlay(vp
->bmp
);
2178 SDL_DestroyMutex(is
->pictq_mutex
);
2179 SDL_DestroyCond(is
->pictq_cond
);
2180 SDL_DestroyMutex(is
->subpq_mutex
);
2181 SDL_DestroyCond(is
->subpq_cond
);
2184 static void stream_cycle_channel(VideoState
*is
, int codec_type
)
2186 AVFormatContext
*ic
= is
->ic
;
2187 int start_index
, stream_index
;
2190 if (codec_type
== CODEC_TYPE_VIDEO
)
2191 start_index
= is
->video_stream
;
2192 else if (codec_type
== CODEC_TYPE_AUDIO
)
2193 start_index
= is
->audio_stream
;
2195 start_index
= is
->subtitle_stream
;
2196 if (start_index
< (codec_type
== CODEC_TYPE_SUBTITLE
? -1 : 0))
2198 stream_index
= start_index
;
2200 if (++stream_index
>= is
->ic
->nb_streams
)
2202 if (codec_type
== CODEC_TYPE_SUBTITLE
)
2209 if (stream_index
== start_index
)
2211 st
= ic
->streams
[stream_index
];
2212 if (st
->codec
->codec_type
== codec_type
) {
2213 /* check that parameters are OK */
2214 switch(codec_type
) {
2215 case CODEC_TYPE_AUDIO
:
2216 if (st
->codec
->sample_rate
!= 0 &&
2217 st
->codec
->channels
!= 0)
2220 case CODEC_TYPE_VIDEO
:
2221 case CODEC_TYPE_SUBTITLE
:
2229 stream_component_close(is
, start_index
);
2230 stream_component_open(is
, stream_index
);
2234 static void toggle_full_screen(void)
2236 is_full_screen
= !is_full_screen
;
2237 if (!fs_screen_width
) {
2238 /* use default SDL method */
2239 // SDL_WM_ToggleFullScreen(screen);
2241 video_open(cur_stream
);
2244 static void toggle_pause(void)
2247 stream_pause(cur_stream
);
2251 static void step_to_next_frame(void)
2254 /* if the stream is paused unpause it, then step */
2255 if (cur_stream
->paused
)
2256 stream_pause(cur_stream
);
2261 static void do_exit(void)
2264 stream_close(cur_stream
);
2273 static void toggle_audio_display(void)
2276 cur_stream
->show_audio
= !cur_stream
->show_audio
;
2280 /* handle an event sent by the GUI */
2281 static void event_loop(void)
2284 double incr
, pos
, frac
;
2287 SDL_WaitEvent(&event
);
2288 switch(event
.type
) {
2290 switch(event
.key
.keysym
.sym
) {
2296 toggle_full_screen();
2302 case SDLK_s
: //S: Step to next frame
2303 step_to_next_frame();
2307 stream_cycle_channel(cur_stream
, CODEC_TYPE_AUDIO
);
2311 stream_cycle_channel(cur_stream
, CODEC_TYPE_VIDEO
);
2315 stream_cycle_channel(cur_stream
, CODEC_TYPE_SUBTITLE
);
2318 toggle_audio_display();
2333 if (seek_by_bytes
) {
2334 pos
= url_ftell(cur_stream
->ic
->pb
);
2335 if (cur_stream
->ic
->bit_rate
)
2336 incr
*= cur_stream
->ic
->bit_rate
/ 60.0;
2340 stream_seek(cur_stream
, pos
, incr
);
2342 pos
= get_master_clock(cur_stream
);
2344 stream_seek(cur_stream
, (int64_t)(pos
* AV_TIME_BASE
), incr
);
2352 case SDL_MOUSEBUTTONDOWN
:
2355 int tns
, thh
, tmm
, tss
;
2356 tns
= cur_stream
->ic
->duration
/1000000LL;
2358 tmm
= (tns
%3600)/60;
2360 frac
= (double)event
.button
.x
/(double)cur_stream
->width
;
2365 fprintf(stderr
, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac
*100,
2366 hh
, mm
, ss
, thh
, tmm
, tss
);
2367 stream_seek(cur_stream
, (int64_t)(cur_stream
->ic
->start_time
+frac
*cur_stream
->ic
->duration
), 0);
2370 case SDL_VIDEORESIZE
:
2372 screen
= SDL_SetVideoMode(event
.resize
.w
, event
.resize
.h
, 0,
2373 SDL_HWSURFACE
|SDL_RESIZABLE
|SDL_ASYNCBLIT
|SDL_HWACCEL
);
2374 screen_width
= cur_stream
->width
= event
.resize
.w
;
2375 screen_height
= cur_stream
->height
= event
.resize
.h
;
2382 case FF_ALLOC_EVENT
:
2383 video_open(event
.user
.data1
);
2384 alloc_picture(event
.user
.data1
);
2386 case FF_REFRESH_EVENT
:
2387 video_refresh_timer(event
.user
.data1
);
2395 static void opt_frame_size(const char *arg
)
2397 if (av_parse_video_frame_size(&frame_width
, &frame_height
, arg
) < 0) {
2398 fprintf(stderr
, "Incorrect frame size\n");
2401 if ((frame_width
% 2) != 0 || (frame_height
% 2) != 0) {
2402 fprintf(stderr
, "Frame size must be a multiple of 2\n");
2407 static int opt_width(const char *opt
, const char *arg
)
2409 screen_width
= parse_number_or_die(opt
, arg
, OPT_INT64
, 1, INT_MAX
);
2413 static int opt_height(const char *opt
, const char *arg
)
2415 screen_height
= parse_number_or_die(opt
, arg
, OPT_INT64
, 1, INT_MAX
);
2419 static void opt_format(const char *arg
)
2421 file_iformat
= av_find_input_format(arg
);
2422 if (!file_iformat
) {
2423 fprintf(stderr
, "Unknown input format: %s\n", arg
);
2428 static void opt_frame_pix_fmt(const char *arg
)
2430 frame_pix_fmt
= avcodec_get_pix_fmt(arg
);
2433 static int opt_sync(const char *opt
, const char *arg
)
2435 if (!strcmp(arg
, "audio"))
2436 av_sync_type
= AV_SYNC_AUDIO_MASTER
;
2437 else if (!strcmp(arg
, "video"))
2438 av_sync_type
= AV_SYNC_VIDEO_MASTER
;
2439 else if (!strcmp(arg
, "ext"))
2440 av_sync_type
= AV_SYNC_EXTERNAL_CLOCK
;
2442 fprintf(stderr
, "Unknown value for %s: %s\n", opt
, arg
);
2448 static int opt_seek(const char *opt
, const char *arg
)
2450 start_time
= parse_time_or_die(opt
, arg
, 1);
2454 static int opt_debug(const char *opt
, const char *arg
)
2456 av_log_set_level(99);
2457 debug
= parse_number_or_die(opt
, arg
, OPT_INT64
, 0, INT_MAX
);
2461 static int opt_vismv(const char *opt
, const char *arg
)
2463 debug_mv
= parse_number_or_die(opt
, arg
, OPT_INT64
, INT_MIN
, INT_MAX
);
2467 static int opt_thread_count(const char *opt
, const char *arg
)
2469 thread_count
= parse_number_or_die(opt
, arg
, OPT_INT64
, 0, INT_MAX
);
2471 fprintf(stderr
, "Warning: not compiled with thread support, using thread emulation\n");
2476 static const OptionDef options
[] = {
2477 { "h", OPT_EXIT
, {(void*)show_help
}, "show help" },
2478 { "version", OPT_EXIT
, {(void*)show_version
}, "show version" },
2479 { "L", OPT_EXIT
, {(void*)show_license
}, "show license" },
2480 { "formats", OPT_EXIT
, {(void*)show_formats
}, "show available formats, codecs, protocols, ..." },
2481 { "x", HAS_ARG
| OPT_FUNC2
, {(void*)opt_width
}, "force displayed width", "width" },
2482 { "y", HAS_ARG
| OPT_FUNC2
, {(void*)opt_height
}, "force displayed height", "height" },
2483 { "s", HAS_ARG
| OPT_VIDEO
, {(void*)opt_frame_size
}, "set frame size (WxH or abbreviation)", "size" },
2484 { "fs", OPT_BOOL
, {(void*)&is_full_screen
}, "force full screen" },
2485 { "an", OPT_BOOL
, {(void*)&audio_disable
}, "disable audio" },
2486 { "vn", OPT_BOOL
, {(void*)&video_disable
}, "disable video" },
2487 { "ast", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&wanted_audio_stream
}, "", "" },
2488 { "vst", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&wanted_video_stream
}, "", "" },
2489 { "ss", HAS_ARG
| OPT_FUNC2
, {(void*)&opt_seek
}, "seek to a given position in seconds", "pos" },
2490 { "bytes", OPT_BOOL
, {(void*)&seek_by_bytes
}, "seek by bytes" },
2491 { "nodisp", OPT_BOOL
, {(void*)&display_disable
}, "disable graphical display" },
2492 { "f", HAS_ARG
, {(void*)opt_format
}, "force format", "fmt" },
2493 { "pix_fmt", HAS_ARG
| OPT_EXPERT
| OPT_VIDEO
, {(void*)opt_frame_pix_fmt
}, "set pixel format", "format" },
2494 { "stats", OPT_BOOL
| OPT_EXPERT
, {(void*)&show_status
}, "show status", "" },
2495 { "debug", HAS_ARG
| OPT_FUNC2
| OPT_EXPERT
, {(void*)opt_debug
}, "print specific debug info", "" },
2496 { "bug", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&workaround_bugs
}, "workaround bugs", "" },
2497 { "vismv", HAS_ARG
| OPT_FUNC2
| OPT_EXPERT
, {(void*)opt_vismv
}, "visualize motion vectors", "" },
2498 { "fast", OPT_BOOL
| OPT_EXPERT
, {(void*)&fast
}, "non spec compliant optimizations", "" },
2499 { "genpts", OPT_BOOL
| OPT_EXPERT
, {(void*)&genpts
}, "generate pts", "" },
2500 { "drp", OPT_BOOL
|OPT_EXPERT
, {(void*)&decoder_reorder_pts
}, "let decoder reorder pts", ""},
2501 { "lowres", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&lowres
}, "", "" },
2502 { "skiploop", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&skip_loop_filter
}, "", "" },
2503 { "skipframe", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&skip_frame
}, "", "" },
2504 { "skipidct", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&skip_idct
}, "", "" },
2505 { "idct", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&idct
}, "set idct algo", "algo" },
2506 { "er", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&error_recognition
}, "set error detection threshold (0-4)", "threshold" },
2507 { "ec", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&error_concealment
}, "set error concealment options", "bit_mask" },
2508 { "sync", HAS_ARG
| OPT_FUNC2
| OPT_EXPERT
, {(void*)opt_sync
}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2509 { "threads", HAS_ARG
| OPT_FUNC2
| OPT_EXPERT
, {(void*)opt_thread_count
}, "thread count", "count" },
2510 { "default", OPT_FUNC2
| HAS_ARG
| OPT_AUDIO
| OPT_VIDEO
| OPT_EXPERT
, {(void*)opt_default
}, "generic catch all option", "" },
2514 static void show_help(void)
2516 printf("usage: ffplay [options] input_file\n"
2517 "Simple media player\n");
2519 show_help_options(options
, "Main options:\n",
2521 show_help_options(options
, "\nAdvanced options:\n",
2522 OPT_EXPERT
, OPT_EXPERT
);
2523 printf("\nWhile playing:\n"
2525 "f toggle full screen\n"
2527 "a cycle audio channel\n"
2528 "v cycle video channel\n"
2529 "t cycle subtitle channel\n"
2530 "w show audio waves\n"
2531 "left/right seek backward/forward 10 seconds\n"
2532 "down/up seek backward/forward 1 minute\n"
2533 "mouse click seek to percentage in file corresponding to fraction of width\n"
2537 static void opt_input_file(const char *filename
)
2539 if (!strcmp(filename
, "-"))
2541 input_filename
= filename
;
2544 /* Called from the main */
2545 int main(int argc
, char **argv
)
2549 /* register all codecs, demux and protocols */
2550 avcodec_register_all();
2551 avdevice_register_all();
2554 for(i
=0; i
<CODEC_TYPE_NB
; i
++){
2555 avctx_opts
[i
]= avcodec_alloc_context2(i
);
2557 avformat_opts
= av_alloc_format_context();
2558 sws_opts
= sws_getContext(16,16,0, 16,16,0, sws_flags
, NULL
,NULL
,NULL
);
2562 parse_options(argc
, argv
, options
, opt_input_file
);
2564 if (!input_filename
) {
2565 fprintf(stderr
, "An input file must be specified\n");
2569 if (display_disable
) {
2572 flags
= SDL_INIT_VIDEO
| SDL_INIT_AUDIO
| SDL_INIT_TIMER
;
2573 #if !defined(__MINGW32__) && !defined(__APPLE__)
2574 flags
|= SDL_INIT_EVENTTHREAD
; /* Not supported on Windows or Mac OS X */
2576 if (SDL_Init (flags
)) {
2577 fprintf(stderr
, "Could not initialize SDL - %s\n", SDL_GetError());
2581 if (!display_disable
) {
2582 #if HAVE_SDL_VIDEO_SIZE
2583 const SDL_VideoInfo
*vi
= SDL_GetVideoInfo();
2584 fs_screen_width
= vi
->current_w
;
2585 fs_screen_height
= vi
->current_h
;
2589 SDL_EventState(SDL_ACTIVEEVENT
, SDL_IGNORE
);
2590 SDL_EventState(SDL_MOUSEMOTION
, SDL_IGNORE
);
2591 SDL_EventState(SDL_SYSWMEVENT
, SDL_IGNORE
);
2592 SDL_EventState(SDL_USEREVENT
, SDL_IGNORE
);
2594 av_init_packet(&flush_pkt
);
2595 flush_pkt
.data
= "FLUSH";
2597 cur_stream
= stream_open(input_filename
, file_iformat
);