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"
34 #include <SDL_thread.h>
37 #undef main /* We don't want SDL to override our main() */
42 const char program_name
[] = "FFplay";
43 const int program_birth_year
= 2003;
47 #define MAX_VIDEOQ_SIZE (5 * 256 * 1024)
48 #define MAX_AUDIOQ_SIZE (5 * 16 * 1024)
49 #define MAX_SUBTITLEQ_SIZE (5 * 16 * 1024)
51 /* SDL audio buffer size, in samples. Should be small to have precise
52 A/V sync as SDL does not have hardware buffer fullness info. */
53 #define SDL_AUDIO_BUFFER_SIZE 1024
55 /* no AV sync correction is done if below the AV sync threshold */
56 #define AV_SYNC_THRESHOLD 0.01
57 /* no AV correction is done if too big error */
58 #define AV_NOSYNC_THRESHOLD 10.0
60 /* maximum audio speed change to get correct sync */
61 #define SAMPLE_CORRECTION_PERCENT_MAX 10
63 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
64 #define AUDIO_DIFF_AVG_NB 20
66 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
67 #define SAMPLE_ARRAY_SIZE (2*65536)
69 static int sws_flags
= SWS_BICUBIC
;
71 typedef struct PacketQueue
{
72 AVPacketList
*first_pkt
, *last_pkt
;
80 #define VIDEO_PICTURE_QUEUE_SIZE 1
81 #define SUBPICTURE_QUEUE_SIZE 4
83 typedef struct VideoPicture
{
84 double pts
; ///<presentation time stamp for this picture
86 int width
, height
; /* source height & width */
90 typedef struct SubPicture
{
91 double pts
; /* presentation time stamp for this picture */
96 AV_SYNC_AUDIO_MASTER
, /* default choice */
98 AV_SYNC_EXTERNAL_CLOCK
, /* synchronize to an external clock */
101 typedef struct VideoState
{
102 SDL_Thread
*parse_tid
;
103 SDL_Thread
*video_tid
;
104 AVInputFormat
*iformat
;
113 int dtg_active_format
;
118 double external_clock
; /* external clock base */
119 int64_t external_clock_time
;
122 double audio_diff_cum
; /* used for AV difference average computation */
123 double audio_diff_avg_coef
;
124 double audio_diff_threshold
;
125 int audio_diff_avg_count
;
128 int audio_hw_buf_size
;
129 /* samples output by the codec. we reserve more space for avsync
131 DECLARE_ALIGNED(16,uint8_t,audio_buf1
[(AVCODEC_MAX_AUDIO_FRAME_SIZE
* 3) / 2]);
132 DECLARE_ALIGNED(16,uint8_t,audio_buf2
[(AVCODEC_MAX_AUDIO_FRAME_SIZE
* 3) / 2]);
134 unsigned int audio_buf_size
; /* in bytes */
135 int audio_buf_index
; /* in bytes */
137 uint8_t *audio_pkt_data
;
139 enum SampleFormat audio_src_fmt
;
140 AVAudioConvert
*reformat_ctx
;
142 int show_audio
; /* if true, display audio samples */
143 int16_t sample_array
[SAMPLE_ARRAY_SIZE
];
144 int sample_array_index
;
147 SDL_Thread
*subtitle_tid
;
149 int subtitle_stream_changed
;
150 AVStream
*subtitle_st
;
151 PacketQueue subtitleq
;
152 SubPicture subpq
[SUBPICTURE_QUEUE_SIZE
];
153 int subpq_size
, subpq_rindex
, subpq_windex
;
154 SDL_mutex
*subpq_mutex
;
155 SDL_cond
*subpq_cond
;
158 double frame_last_pts
;
159 double frame_last_delay
;
160 double video_clock
; ///<pts of last decoded frame / predicted pts of next decoded frame
164 double video_current_pts
; ///<current displayed pts (different from video_clock if frame fifos are used)
165 int64_t video_current_pts_time
; ///<time (av_gettime) at which we updated video_current_pts - used to have running video pts
166 VideoPicture pictq
[VIDEO_PICTURE_QUEUE_SIZE
];
167 int pictq_size
, pictq_rindex
, pictq_windex
;
168 SDL_mutex
*pictq_mutex
;
169 SDL_cond
*pictq_cond
;
171 // QETimer *video_timer;
173 int width
, height
, xleft
, ytop
;
176 static void show_help(void);
177 static int audio_write_get_buf_size(VideoState
*is
);
179 /* options specified by the user */
180 static AVInputFormat
*file_iformat
;
181 static const char *input_filename
;
182 static int fs_screen_width
;
183 static int fs_screen_height
;
184 static int screen_width
= 0;
185 static int screen_height
= 0;
186 static int frame_width
= 0;
187 static int frame_height
= 0;
188 static enum PixelFormat frame_pix_fmt
= PIX_FMT_NONE
;
189 static int audio_disable
;
190 static int video_disable
;
191 static int wanted_audio_stream
= 0;
192 static int wanted_video_stream
= 0;
193 static int seek_by_bytes
;
194 static int display_disable
;
195 static int show_status
;
196 static int av_sync_type
= AV_SYNC_AUDIO_MASTER
;
197 static int64_t start_time
= AV_NOPTS_VALUE
;
198 static int debug
= 0;
199 static int debug_mv
= 0;
201 static int thread_count
= 1;
202 static int workaround_bugs
= 1;
204 static int genpts
= 0;
205 static int lowres
= 0;
206 static int idct
= FF_IDCT_AUTO
;
207 static enum AVDiscard skip_frame
= AVDISCARD_DEFAULT
;
208 static enum AVDiscard skip_idct
= AVDISCARD_DEFAULT
;
209 static enum AVDiscard skip_loop_filter
= AVDISCARD_DEFAULT
;
210 static int error_resilience
= FF_ER_CAREFUL
;
211 static int error_concealment
= 3;
212 static int decoder_reorder_pts
= 0;
214 /* current context */
215 static int is_full_screen
;
216 static VideoState
*cur_stream
;
217 static int64_t audio_callback_time
;
221 #define FF_ALLOC_EVENT (SDL_USEREVENT)
222 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
223 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
227 /* packet queue handling */
228 static void packet_queue_init(PacketQueue
*q
)
230 memset(q
, 0, sizeof(PacketQueue
));
231 q
->mutex
= SDL_CreateMutex();
232 q
->cond
= SDL_CreateCond();
235 static void packet_queue_flush(PacketQueue
*q
)
237 AVPacketList
*pkt
, *pkt1
;
239 SDL_LockMutex(q
->mutex
);
240 for(pkt
= q
->first_pkt
; pkt
!= NULL
; pkt
= pkt1
) {
242 av_free_packet(&pkt
->pkt
);
249 SDL_UnlockMutex(q
->mutex
);
252 static void packet_queue_end(PacketQueue
*q
)
254 packet_queue_flush(q
);
255 SDL_DestroyMutex(q
->mutex
);
256 SDL_DestroyCond(q
->cond
);
259 static int packet_queue_put(PacketQueue
*q
, AVPacket
*pkt
)
263 /* duplicate the packet */
264 if (pkt
!=&flush_pkt
&& av_dup_packet(pkt
) < 0)
267 pkt1
= av_malloc(sizeof(AVPacketList
));
274 SDL_LockMutex(q
->mutex
);
280 q
->last_pkt
->next
= pkt1
;
283 q
->size
+= pkt1
->pkt
.size
;
284 /* XXX: should duplicate packet data in DV case */
285 SDL_CondSignal(q
->cond
);
287 SDL_UnlockMutex(q
->mutex
);
291 static void packet_queue_abort(PacketQueue
*q
)
293 SDL_LockMutex(q
->mutex
);
295 q
->abort_request
= 1;
297 SDL_CondSignal(q
->cond
);
299 SDL_UnlockMutex(q
->mutex
);
302 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
303 static int packet_queue_get(PacketQueue
*q
, AVPacket
*pkt
, int block
)
308 SDL_LockMutex(q
->mutex
);
311 if (q
->abort_request
) {
318 q
->first_pkt
= pkt1
->next
;
322 q
->size
-= pkt1
->pkt
.size
;
331 SDL_CondWait(q
->cond
, q
->mutex
);
334 SDL_UnlockMutex(q
->mutex
);
338 static inline void fill_rectangle(SDL_Surface
*screen
,
339 int x
, int y
, int w
, int h
, int color
)
346 SDL_FillRect(screen
, &rect
, color
);
350 /* draw only the border of a rectangle */
351 void fill_border(VideoState
*s
, int x
, int y
, int w
, int h
, int color
)
355 /* fill the background */
359 w2
= s
->width
- (x
+ w
);
365 h2
= s
->height
- (y
+ h
);
368 fill_rectangle(screen
,
372 fill_rectangle(screen
,
373 s
->xleft
+ s
->width
- w2
, s
->ytop
,
376 fill_rectangle(screen
,
377 s
->xleft
+ w1
, s
->ytop
,
378 s
->width
- w1
- w2
, h1
,
380 fill_rectangle(screen
,
381 s
->xleft
+ w1
, s
->ytop
+ s
->height
- h2
,
382 s
->width
- w1
- w2
, h2
,
390 #define ONE_HALF (1 << (SCALEBITS - 1))
391 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
393 #define RGB_TO_Y_CCIR(r, g, b) \
394 ((FIX(0.29900*219.0/255.0) * (r) + FIX(0.58700*219.0/255.0) * (g) + \
395 FIX(0.11400*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS)
397 #define RGB_TO_U_CCIR(r1, g1, b1, shift)\
398 (((- FIX(0.16874*224.0/255.0) * r1 - FIX(0.33126*224.0/255.0) * g1 + \
399 FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
401 #define RGB_TO_V_CCIR(r1, g1, b1, shift)\
402 (((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 - \
403 FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
405 #define ALPHA_BLEND(a, oldp, newp, s)\
406 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
408 #define RGBA_IN(r, g, b, a, s)\
410 unsigned int v = ((const uint32_t *)(s))[0];\
411 a = (v >> 24) & 0xff;\
412 r = (v >> 16) & 0xff;\
413 g = (v >> 8) & 0xff;\
417 #define YUVA_IN(y, u, v, a, s, pal)\
419 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
420 a = (val >> 24) & 0xff;\
421 y = (val >> 16) & 0xff;\
422 u = (val >> 8) & 0xff;\
426 #define YUVA_OUT(d, y, u, v, a)\
428 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
434 static void blend_subrect(AVPicture
*dst
, const AVSubtitleRect
*rect
, int imgw
, int imgh
)
436 int wrap
, wrap3
, width2
, skip2
;
437 int y
, u
, v
, a
, u1
, v1
, a1
, w
, h
;
438 uint8_t *lum
, *cb
, *cr
;
441 int dstx
, dsty
, dstw
, dsth
;
443 dstx
= FFMIN(FFMAX(rect
->x
, 0), imgw
);
444 dstw
= FFMIN(FFMAX(rect
->w
, 0), imgw
- dstx
);
445 dsty
= FFMIN(FFMAX(rect
->y
, 0), imgh
);
446 dsth
= FFMIN(FFMAX(rect
->h
, 0), imgh
- dsty
);
447 lum
= dst
->data
[0] + dsty
* dst
->linesize
[0];
448 cb
= dst
->data
[1] + (dsty
>> 1) * dst
->linesize
[1];
449 cr
= dst
->data
[2] + (dsty
>> 1) * dst
->linesize
[2];
451 width2
= (dstw
+ 1) >> 1;
453 wrap
= dst
->linesize
[0];
454 wrap3
= rect
->linesize
;
456 pal
= rect
->rgba_palette
; /* Now in YCrCb! */
464 YUVA_IN(y
, u
, v
, a
, p
, pal
);
465 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
466 cb
[0] = ALPHA_BLEND(a
>> 2, cb
[0], u
, 0);
467 cr
[0] = ALPHA_BLEND(a
>> 2, cr
[0], v
, 0);
473 for(w
= dstw
- (dstx
& 1); w
>= 2; w
-= 2) {
474 YUVA_IN(y
, u
, v
, a
, p
, pal
);
478 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
480 YUVA_IN(y
, u
, v
, a
, p
+ BPP
, pal
);
484 lum
[1] = ALPHA_BLEND(a
, lum
[1], y
, 0);
485 cb
[0] = ALPHA_BLEND(a1
>> 2, cb
[0], u1
, 1);
486 cr
[0] = ALPHA_BLEND(a1
>> 2, cr
[0], v1
, 1);
493 YUVA_IN(y
, u
, v
, a
, p
, pal
);
494 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
495 cb
[0] = ALPHA_BLEND(a
>> 2, cb
[0], u
, 0);
496 cr
[0] = ALPHA_BLEND(a
>> 2, cr
[0], v
, 0);
498 p
+= wrap3
+ (wrap3
- dstw
* BPP
);
499 lum
+= wrap
+ (wrap
- dstw
- dstx
);
500 cb
+= dst
->linesize
[1] - width2
- skip2
;
501 cr
+= dst
->linesize
[2] - width2
- skip2
;
503 for(h
= dsth
- (dsty
& 1); h
>= 2; h
-= 2) {
509 YUVA_IN(y
, u
, v
, a
, p
, pal
);
513 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
516 YUVA_IN(y
, u
, v
, a
, p
, pal
);
520 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
521 cb
[0] = ALPHA_BLEND(a1
>> 2, cb
[0], u1
, 1);
522 cr
[0] = ALPHA_BLEND(a1
>> 2, cr
[0], v1
, 1);
528 for(w
= dstw
- (dstx
& 1); w
>= 2; w
-= 2) {
529 YUVA_IN(y
, u
, v
, a
, p
, pal
);
533 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
535 YUVA_IN(y
, u
, v
, a
, p
, pal
);
539 lum
[1] = ALPHA_BLEND(a
, lum
[1], y
, 0);
543 YUVA_IN(y
, u
, v
, a
, p
, pal
);
547 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
549 YUVA_IN(y
, u
, v
, a
, p
, pal
);
553 lum
[1] = ALPHA_BLEND(a
, lum
[1], y
, 0);
555 cb
[0] = ALPHA_BLEND(a1
>> 2, cb
[0], u1
, 2);
556 cr
[0] = ALPHA_BLEND(a1
>> 2, cr
[0], v1
, 2);
560 p
+= -wrap3
+ 2 * BPP
;
564 YUVA_IN(y
, u
, v
, a
, p
, pal
);
568 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
571 YUVA_IN(y
, u
, v
, a
, p
, pal
);
575 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
576 cb
[0] = ALPHA_BLEND(a1
>> 2, cb
[0], u1
, 1);
577 cr
[0] = ALPHA_BLEND(a1
>> 2, cr
[0], v1
, 1);
583 p
+= wrap3
+ (wrap3
- dstw
* BPP
);
584 lum
+= wrap
+ (wrap
- dstw
- dstx
);
585 cb
+= dst
->linesize
[1] - width2
- skip2
;
586 cr
+= dst
->linesize
[2] - width2
- skip2
;
588 /* handle odd height */
595 YUVA_IN(y
, u
, v
, a
, p
, pal
);
596 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
597 cb
[0] = ALPHA_BLEND(a
>> 2, cb
[0], u
, 0);
598 cr
[0] = ALPHA_BLEND(a
>> 2, cr
[0], v
, 0);
604 for(w
= dstw
- (dstx
& 1); w
>= 2; w
-= 2) {
605 YUVA_IN(y
, u
, v
, a
, p
, pal
);
609 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
611 YUVA_IN(y
, u
, v
, a
, p
+ BPP
, pal
);
615 lum
[1] = ALPHA_BLEND(a
, lum
[1], y
, 0);
616 cb
[0] = ALPHA_BLEND(a1
>> 2, cb
[0], u
, 1);
617 cr
[0] = ALPHA_BLEND(a1
>> 2, cr
[0], v
, 1);
624 YUVA_IN(y
, u
, v
, a
, p
, pal
);
625 lum
[0] = ALPHA_BLEND(a
, lum
[0], y
, 0);
626 cb
[0] = ALPHA_BLEND(a
>> 2, cb
[0], u
, 0);
627 cr
[0] = ALPHA_BLEND(a
>> 2, cr
[0], v
, 0);
632 static void free_subpicture(SubPicture
*sp
)
636 for (i
= 0; i
< sp
->sub
.num_rects
; i
++)
638 av_free(sp
->sub
.rects
[i
].bitmap
);
639 av_free(sp
->sub
.rects
[i
].rgba_palette
);
642 av_free(sp
->sub
.rects
);
644 memset(&sp
->sub
, 0, sizeof(AVSubtitle
));
647 static void video_image_display(VideoState
*is
)
653 int width
, height
, x
, y
;
657 vp
= &is
->pictq
[is
->pictq_rindex
];
659 /* XXX: use variable in the frame */
660 if (is
->video_st
->codec
->sample_aspect_ratio
.num
== 0)
663 aspect_ratio
= av_q2d(is
->video_st
->codec
->sample_aspect_ratio
)
664 * is
->video_st
->codec
->width
/ is
->video_st
->codec
->height
;
665 if (aspect_ratio
<= 0.0)
666 aspect_ratio
= (float)is
->video_st
->codec
->width
/
667 (float)is
->video_st
->codec
->height
;
668 /* if an active format is indicated, then it overrides the
671 if (is
->video_st
->codec
->dtg_active_format
!= is
->dtg_active_format
) {
672 is
->dtg_active_format
= is
->video_st
->codec
->dtg_active_format
;
673 printf("dtg_active_format=%d\n", is
->dtg_active_format
);
677 switch(is
->video_st
->codec
->dtg_active_format
) {
678 case FF_DTG_AFD_SAME
:
683 aspect_ratio
= 4.0 / 3.0;
685 case FF_DTG_AFD_16_9
:
686 aspect_ratio
= 16.0 / 9.0;
688 case FF_DTG_AFD_14_9
:
689 aspect_ratio
= 14.0 / 9.0;
691 case FF_DTG_AFD_4_3_SP_14_9
:
692 aspect_ratio
= 14.0 / 9.0;
694 case FF_DTG_AFD_16_9_SP_14_9
:
695 aspect_ratio
= 14.0 / 9.0;
697 case FF_DTG_AFD_SP_4_3
:
698 aspect_ratio
= 4.0 / 3.0;
705 if (is
->subpq_size
> 0)
707 sp
= &is
->subpq
[is
->subpq_rindex
];
709 if (vp
->pts
>= sp
->pts
+ ((float) sp
->sub
.start_display_time
/ 1000))
711 SDL_LockYUVOverlay (vp
->bmp
);
713 pict
.data
[0] = vp
->bmp
->pixels
[0];
714 pict
.data
[1] = vp
->bmp
->pixels
[2];
715 pict
.data
[2] = vp
->bmp
->pixels
[1];
717 pict
.linesize
[0] = vp
->bmp
->pitches
[0];
718 pict
.linesize
[1] = vp
->bmp
->pitches
[2];
719 pict
.linesize
[2] = vp
->bmp
->pitches
[1];
721 for (i
= 0; i
< sp
->sub
.num_rects
; i
++)
722 blend_subrect(&pict
, &sp
->sub
.rects
[i
],
723 vp
->bmp
->w
, vp
->bmp
->h
);
725 SDL_UnlockYUVOverlay (vp
->bmp
);
731 /* XXX: we suppose the screen has a 1.0 pixel ratio */
733 width
= ((int)rint(height
* aspect_ratio
)) & -3;
734 if (width
> is
->width
) {
736 height
= ((int)rint(width
/ aspect_ratio
)) & -3;
738 x
= (is
->width
- width
) / 2;
739 y
= (is
->height
- height
) / 2;
740 if (!is
->no_background
) {
741 /* fill the background */
742 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
744 is
->no_background
= 0;
746 rect
.x
= is
->xleft
+ x
;
747 rect
.y
= is
->ytop
+ y
;
750 SDL_DisplayYUVOverlay(vp
->bmp
, &rect
);
753 fill_rectangle(screen
,
754 is
->xleft
, is
->ytop
, is
->width
, is
->height
,
755 QERGB(0x00, 0x00, 0x00));
760 static inline int compute_mod(int a
, int b
)
769 static void video_audio_display(VideoState
*s
)
771 int i
, i_start
, x
, y1
, y
, ys
, delay
, n
, nb_display_channels
;
772 int ch
, channels
, h
, h2
, bgcolor
, fgcolor
;
775 /* compute display index : center on currently output samples */
776 channels
= s
->audio_st
->codec
->channels
;
777 nb_display_channels
= channels
;
780 delay
= audio_write_get_buf_size(s
);
783 /* to be more precise, we take into account the time spent since
784 the last buffer computation */
785 if (audio_callback_time
) {
786 time_diff
= av_gettime() - audio_callback_time
;
787 delay
+= (time_diff
* s
->audio_st
->codec
->sample_rate
) / 1000000;
790 delay
-= s
->width
/ 2;
791 if (delay
< s
->width
)
794 i_start
= x
= compute_mod(s
->sample_array_index
- delay
* channels
, SAMPLE_ARRAY_SIZE
);
797 for(i
=0; i
<1000; i
+=channels
){
798 int idx
= (SAMPLE_ARRAY_SIZE
+ x
- i
) % SAMPLE_ARRAY_SIZE
;
799 int a
= s
->sample_array
[idx
];
800 int b
= s
->sample_array
[(idx
+ 4*channels
)%SAMPLE_ARRAY_SIZE
];
801 int c
= s
->sample_array
[(idx
+ 5*channels
)%SAMPLE_ARRAY_SIZE
];
802 int d
= s
->sample_array
[(idx
+ 9*channels
)%SAMPLE_ARRAY_SIZE
];
804 if(h
<score
&& (b
^c
)<0){
810 s
->last_i_start
= i_start
;
812 i_start
= s
->last_i_start
;
815 bgcolor
= SDL_MapRGB(screen
->format
, 0x00, 0x00, 0x00);
816 fill_rectangle(screen
,
817 s
->xleft
, s
->ytop
, s
->width
, s
->height
,
820 fgcolor
= SDL_MapRGB(screen
->format
, 0xff, 0xff, 0xff);
822 /* total height for one channel */
823 h
= s
->height
/ nb_display_channels
;
824 /* graph height / 2 */
826 for(ch
= 0;ch
< nb_display_channels
; ch
++) {
828 y1
= s
->ytop
+ ch
* h
+ (h
/ 2); /* position of center line */
829 for(x
= 0; x
< s
->width
; x
++) {
830 y
= (s
->sample_array
[i
] * h2
) >> 15;
837 fill_rectangle(screen
,
838 s
->xleft
+ x
, ys
, 1, y
,
841 if (i
>= SAMPLE_ARRAY_SIZE
)
842 i
-= SAMPLE_ARRAY_SIZE
;
846 fgcolor
= SDL_MapRGB(screen
->format
, 0x00, 0x00, 0xff);
848 for(ch
= 1;ch
< nb_display_channels
; ch
++) {
849 y
= s
->ytop
+ ch
* h
;
850 fill_rectangle(screen
,
851 s
->xleft
, y
, s
->width
, 1,
854 SDL_UpdateRect(screen
, s
->xleft
, s
->ytop
, s
->width
, s
->height
);
857 static int video_open(VideoState
*is
){
858 int flags
= SDL_HWSURFACE
|SDL_ASYNCBLIT
|SDL_HWACCEL
;
861 if(is_full_screen
) flags
|= SDL_FULLSCREEN
;
862 else flags
|= SDL_RESIZABLE
;
864 if (is_full_screen
&& fs_screen_width
) {
866 h
= fs_screen_height
;
867 } else if(!is_full_screen
&& screen_width
){
870 }else if (is
->video_st
&& is
->video_st
->codec
->width
){
871 w
= is
->video_st
->codec
->width
;
872 h
= is
->video_st
->codec
->height
;
878 screen
= SDL_SetVideoMode(w
, h
, 0, flags
);
880 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
881 screen
= SDL_SetVideoMode(w
, h
, 24, flags
);
884 fprintf(stderr
, "SDL: could not set video mode - exiting\n");
887 SDL_WM_SetCaption("FFplay", "FFplay");
889 is
->width
= screen
->w
;
890 is
->height
= screen
->h
;
895 /* display the current picture, if any */
896 static void video_display(VideoState
*is
)
899 video_open(cur_stream
);
900 if (is
->audio_st
&& is
->show_audio
)
901 video_audio_display(is
);
902 else if (is
->video_st
)
903 video_image_display(is
);
906 static Uint32
sdl_refresh_timer_cb(Uint32 interval
, void *opaque
)
909 event
.type
= FF_REFRESH_EVENT
;
910 event
.user
.data1
= opaque
;
911 SDL_PushEvent(&event
);
912 return 0; /* 0 means stop timer */
915 /* schedule a video refresh in 'delay' ms */
916 static void schedule_refresh(VideoState
*is
, int delay
)
918 SDL_AddTimer(delay
, sdl_refresh_timer_cb
, is
);
921 /* get the current audio clock value */
922 static double get_audio_clock(VideoState
*is
)
925 int hw_buf_size
, bytes_per_sec
;
926 pts
= is
->audio_clock
;
927 hw_buf_size
= audio_write_get_buf_size(is
);
930 bytes_per_sec
= is
->audio_st
->codec
->sample_rate
*
931 2 * is
->audio_st
->codec
->channels
;
934 pts
-= (double)hw_buf_size
/ bytes_per_sec
;
938 /* get the current video clock value */
939 static double get_video_clock(VideoState
*is
)
945 delta
= (av_gettime() - is
->video_current_pts_time
) / 1000000.0;
947 return is
->video_current_pts
+ delta
;
950 /* get the current external clock value */
951 static double get_external_clock(VideoState
*is
)
955 return is
->external_clock
+ ((ti
- is
->external_clock_time
) * 1e-6);
958 /* get the current master clock value */
959 static double get_master_clock(VideoState
*is
)
963 if (is
->av_sync_type
== AV_SYNC_VIDEO_MASTER
) {
965 val
= get_video_clock(is
);
967 val
= get_audio_clock(is
);
968 } else if (is
->av_sync_type
== AV_SYNC_AUDIO_MASTER
) {
970 val
= get_audio_clock(is
);
972 val
= get_video_clock(is
);
974 val
= get_external_clock(is
);
979 /* seek in the stream */
980 static void stream_seek(VideoState
*is
, int64_t pos
, int rel
)
984 is
->seek_flags
= rel
< 0 ? AVSEEK_FLAG_BACKWARD
: 0;
986 is
->seek_flags
|= AVSEEK_FLAG_BYTE
;
991 /* pause or resume the video */
992 static void stream_pause(VideoState
*is
)
994 is
->paused
= !is
->paused
;
996 is
->video_current_pts
= get_video_clock(is
);
997 is
->frame_timer
+= (av_gettime() - is
->video_current_pts_time
) / 1000000.0;
1001 /* called to display each frame */
1002 static void video_refresh_timer(void *opaque
)
1004 VideoState
*is
= opaque
;
1006 double actual_delay
, delay
, sync_threshold
, ref_clock
, diff
;
1008 SubPicture
*sp
, *sp2
;
1011 if (is
->pictq_size
== 0) {
1012 /* if no picture, need to wait */
1013 schedule_refresh(is
, 1);
1015 /* dequeue the picture */
1016 vp
= &is
->pictq
[is
->pictq_rindex
];
1018 /* update current video pts */
1019 is
->video_current_pts
= vp
->pts
;
1020 is
->video_current_pts_time
= av_gettime();
1022 /* compute nominal delay */
1023 delay
= vp
->pts
- is
->frame_last_pts
;
1024 if (delay
<= 0 || delay
>= 2.0) {
1025 /* if incorrect delay, use previous one */
1026 delay
= is
->frame_last_delay
;
1028 is
->frame_last_delay
= delay
;
1029 is
->frame_last_pts
= vp
->pts
;
1031 /* update delay to follow master synchronisation source */
1032 if (((is
->av_sync_type
== AV_SYNC_AUDIO_MASTER
&& is
->audio_st
) ||
1033 is
->av_sync_type
== AV_SYNC_EXTERNAL_CLOCK
)) {
1034 /* if video is slave, we try to correct big delays by
1035 duplicating or deleting a frame */
1036 ref_clock
= get_master_clock(is
);
1037 diff
= vp
->pts
- ref_clock
;
1039 /* skip or repeat frame. We take into account the
1040 delay to compute the threshold. I still don't know
1041 if it is the best guess */
1042 sync_threshold
= AV_SYNC_THRESHOLD
;
1043 if (delay
> sync_threshold
)
1044 sync_threshold
= delay
;
1045 if (fabs(diff
) < AV_NOSYNC_THRESHOLD
) {
1046 if (diff
<= -sync_threshold
)
1048 else if (diff
>= sync_threshold
)
1053 is
->frame_timer
+= delay
;
1054 /* compute the REAL delay (we need to do that to avoid
1056 actual_delay
= is
->frame_timer
- (av_gettime() / 1000000.0);
1057 if (actual_delay
< 0.010) {
1058 /* XXX: should skip picture */
1059 actual_delay
= 0.010;
1061 /* launch timer for next picture */
1062 schedule_refresh(is
, (int)(actual_delay
* 1000 + 0.5));
1064 #if defined(DEBUG_SYNC)
1065 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1066 delay
, actual_delay
, vp
->pts
, -diff
);
1069 if(is
->subtitle_st
) {
1070 if (is
->subtitle_stream_changed
) {
1071 SDL_LockMutex(is
->subpq_mutex
);
1073 while (is
->subpq_size
) {
1074 free_subpicture(&is
->subpq
[is
->subpq_rindex
]);
1076 /* update queue size and signal for next picture */
1077 if (++is
->subpq_rindex
== SUBPICTURE_QUEUE_SIZE
)
1078 is
->subpq_rindex
= 0;
1082 is
->subtitle_stream_changed
= 0;
1084 SDL_CondSignal(is
->subpq_cond
);
1085 SDL_UnlockMutex(is
->subpq_mutex
);
1087 if (is
->subpq_size
> 0) {
1088 sp
= &is
->subpq
[is
->subpq_rindex
];
1090 if (is
->subpq_size
> 1)
1091 sp2
= &is
->subpq
[(is
->subpq_rindex
+ 1) % SUBPICTURE_QUEUE_SIZE
];
1095 if ((is
->video_current_pts
> (sp
->pts
+ ((float) sp
->sub
.end_display_time
/ 1000)))
1096 || (sp2
&& is
->video_current_pts
> (sp2
->pts
+ ((float) sp2
->sub
.start_display_time
/ 1000))))
1098 free_subpicture(sp
);
1100 /* update queue size and signal for next picture */
1101 if (++is
->subpq_rindex
== SUBPICTURE_QUEUE_SIZE
)
1102 is
->subpq_rindex
= 0;
1104 SDL_LockMutex(is
->subpq_mutex
);
1106 SDL_CondSignal(is
->subpq_cond
);
1107 SDL_UnlockMutex(is
->subpq_mutex
);
1113 /* display picture */
1116 /* update queue size and signal for next picture */
1117 if (++is
->pictq_rindex
== VIDEO_PICTURE_QUEUE_SIZE
)
1118 is
->pictq_rindex
= 0;
1120 SDL_LockMutex(is
->pictq_mutex
);
1122 SDL_CondSignal(is
->pictq_cond
);
1123 SDL_UnlockMutex(is
->pictq_mutex
);
1125 } else if (is
->audio_st
) {
1126 /* draw the next audio frame */
1128 schedule_refresh(is
, 40);
1130 /* if only audio stream, then display the audio bars (better
1131 than nothing, just to test the implementation */
1133 /* display picture */
1136 schedule_refresh(is
, 100);
1139 static int64_t last_time
;
1141 int aqsize
, vqsize
, sqsize
;
1144 cur_time
= av_gettime();
1145 if (!last_time
|| (cur_time
- last_time
) >= 500 * 1000) {
1150 aqsize
= is
->audioq
.size
;
1152 vqsize
= is
->videoq
.size
;
1153 if (is
->subtitle_st
)
1154 sqsize
= is
->subtitleq
.size
;
1156 if (is
->audio_st
&& is
->video_st
)
1157 av_diff
= get_audio_clock(is
) - get_video_clock(is
);
1158 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB \r",
1159 get_master_clock(is
), av_diff
, aqsize
/ 1024, vqsize
/ 1024, sqsize
);
1161 last_time
= cur_time
;
1166 /* allocate a picture (needs to do that in main thread to avoid
1167 potential locking problems */
1168 static void alloc_picture(void *opaque
)
1170 VideoState
*is
= opaque
;
1173 vp
= &is
->pictq
[is
->pictq_windex
];
1176 SDL_FreeYUVOverlay(vp
->bmp
);
1179 /* XXX: use generic function */
1180 /* XXX: disable overlay if no hardware acceleration or if RGB format */
1181 switch(is
->video_st
->codec
->pix_fmt
) {
1182 case PIX_FMT_YUV420P
:
1183 case PIX_FMT_YUV422P
:
1184 case PIX_FMT_YUV444P
:
1185 case PIX_FMT_YUYV422
:
1186 case PIX_FMT_YUV410P
:
1187 case PIX_FMT_YUV411P
:
1195 vp
->bmp
= SDL_CreateYUVOverlay(is
->video_st
->codec
->width
,
1196 is
->video_st
->codec
->height
,
1199 vp
->width
= is
->video_st
->codec
->width
;
1200 vp
->height
= is
->video_st
->codec
->height
;
1202 SDL_LockMutex(is
->pictq_mutex
);
1204 SDL_CondSignal(is
->pictq_cond
);
1205 SDL_UnlockMutex(is
->pictq_mutex
);
1210 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1212 static int queue_picture(VideoState
*is
, AVFrame
*src_frame
, double pts
)
1217 static struct SwsContext
*img_convert_ctx
;
1219 /* wait until we have space to put a new picture */
1220 SDL_LockMutex(is
->pictq_mutex
);
1221 while (is
->pictq_size
>= VIDEO_PICTURE_QUEUE_SIZE
&&
1222 !is
->videoq
.abort_request
) {
1223 SDL_CondWait(is
->pictq_cond
, is
->pictq_mutex
);
1225 SDL_UnlockMutex(is
->pictq_mutex
);
1227 if (is
->videoq
.abort_request
)
1230 vp
= &is
->pictq
[is
->pictq_windex
];
1232 /* alloc or resize hardware picture buffer */
1234 vp
->width
!= is
->video_st
->codec
->width
||
1235 vp
->height
!= is
->video_st
->codec
->height
) {
1240 /* the allocation must be done in the main thread to avoid
1242 event
.type
= FF_ALLOC_EVENT
;
1243 event
.user
.data1
= is
;
1244 SDL_PushEvent(&event
);
1246 /* wait until the picture is allocated */
1247 SDL_LockMutex(is
->pictq_mutex
);
1248 while (!vp
->allocated
&& !is
->videoq
.abort_request
) {
1249 SDL_CondWait(is
->pictq_cond
, is
->pictq_mutex
);
1251 SDL_UnlockMutex(is
->pictq_mutex
);
1253 if (is
->videoq
.abort_request
)
1257 /* if the frame is not skipped, then display it */
1259 /* get a pointer on the bitmap */
1260 SDL_LockYUVOverlay (vp
->bmp
);
1262 dst_pix_fmt
= PIX_FMT_YUV420P
;
1263 pict
.data
[0] = vp
->bmp
->pixels
[0];
1264 pict
.data
[1] = vp
->bmp
->pixels
[2];
1265 pict
.data
[2] = vp
->bmp
->pixels
[1];
1267 pict
.linesize
[0] = vp
->bmp
->pitches
[0];
1268 pict
.linesize
[1] = vp
->bmp
->pitches
[2];
1269 pict
.linesize
[2] = vp
->bmp
->pitches
[1];
1270 img_convert_ctx
= sws_getCachedContext(img_convert_ctx
,
1271 is
->video_st
->codec
->width
, is
->video_st
->codec
->height
,
1272 is
->video_st
->codec
->pix_fmt
,
1273 is
->video_st
->codec
->width
, is
->video_st
->codec
->height
,
1274 dst_pix_fmt
, sws_flags
, NULL
, NULL
, NULL
);
1275 if (img_convert_ctx
== NULL
) {
1276 fprintf(stderr
, "Cannot initialize the conversion context\n");
1279 sws_scale(img_convert_ctx
, src_frame
->data
, src_frame
->linesize
,
1280 0, is
->video_st
->codec
->height
, pict
.data
, pict
.linesize
);
1281 /* update the bitmap content */
1282 SDL_UnlockYUVOverlay(vp
->bmp
);
1286 /* now we can update the picture count */
1287 if (++is
->pictq_windex
== VIDEO_PICTURE_QUEUE_SIZE
)
1288 is
->pictq_windex
= 0;
1289 SDL_LockMutex(is
->pictq_mutex
);
1291 SDL_UnlockMutex(is
->pictq_mutex
);
1297 * compute the exact PTS for the picture if it is omitted in the stream
1298 * @param pts1 the dts of the pkt / pts of the frame
1300 static int output_picture2(VideoState
*is
, AVFrame
*src_frame
, double pts1
)
1302 double frame_delay
, pts
;
1307 /* update video clock with pts, if present */
1308 is
->video_clock
= pts
;
1310 pts
= is
->video_clock
;
1312 /* update video clock for next frame */
1313 frame_delay
= av_q2d(is
->video_st
->codec
->time_base
);
1314 /* for MPEG2, the frame can be repeated, so we update the
1315 clock accordingly */
1316 frame_delay
+= src_frame
->repeat_pict
* (frame_delay
* 0.5);
1317 is
->video_clock
+= frame_delay
;
1319 #if defined(DEBUG_SYNC) && 0
1322 if (src_frame
->pict_type
== FF_B_TYPE
)
1324 else if (src_frame
->pict_type
== FF_I_TYPE
)
1328 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1332 return queue_picture(is
, src_frame
, pts
);
1335 static uint64_t global_video_pkt_pts
= AV_NOPTS_VALUE
;
1337 static int my_get_buffer(struct AVCodecContext
*c
, AVFrame
*pic
){
1338 int ret
= avcodec_default_get_buffer(c
, pic
);
1339 uint64_t *pts
= av_malloc(sizeof(uint64_t));
1340 *pts
= global_video_pkt_pts
;
1345 static void my_release_buffer(struct AVCodecContext
*c
, AVFrame
*pic
){
1346 if(pic
) av_freep(&pic
->opaque
);
1347 avcodec_default_release_buffer(c
, pic
);
1350 static int video_thread(void *arg
)
1352 VideoState
*is
= arg
;
1353 AVPacket pkt1
, *pkt
= &pkt1
;
1354 int len1
, got_picture
;
1355 AVFrame
*frame
= avcodec_alloc_frame();
1359 while (is
->paused
&& !is
->videoq
.abort_request
) {
1362 if (packet_queue_get(&is
->videoq
, pkt
, 1) < 0)
1365 if(pkt
->data
== flush_pkt
.data
){
1366 avcodec_flush_buffers(is
->video_st
->codec
);
1370 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1371 this packet, if any */
1372 global_video_pkt_pts
= pkt
->pts
;
1373 len1
= avcodec_decode_video(is
->video_st
->codec
,
1374 frame
, &got_picture
,
1375 pkt
->data
, pkt
->size
);
1377 if( (decoder_reorder_pts
|| pkt
->dts
== AV_NOPTS_VALUE
)
1378 && frame
->opaque
&& *(uint64_t*)frame
->opaque
!= AV_NOPTS_VALUE
)
1379 pts
= *(uint64_t*)frame
->opaque
;
1380 else if(pkt
->dts
!= AV_NOPTS_VALUE
)
1384 pts
*= av_q2d(is
->video_st
->time_base
);
1389 if (output_picture2(is
, frame
, pts
) < 0)
1392 av_free_packet(pkt
);
1395 stream_pause(cur_stream
);
1402 static int subtitle_thread(void *arg
)
1404 VideoState
*is
= arg
;
1406 AVPacket pkt1
, *pkt
= &pkt1
;
1407 int len1
, got_subtitle
;
1410 int r
, g
, b
, y
, u
, v
, a
;
1413 while (is
->paused
&& !is
->subtitleq
.abort_request
) {
1416 if (packet_queue_get(&is
->subtitleq
, pkt
, 1) < 0)
1419 if(pkt
->data
== flush_pkt
.data
){
1420 avcodec_flush_buffers(is
->subtitle_st
->codec
);
1423 SDL_LockMutex(is
->subpq_mutex
);
1424 while (is
->subpq_size
>= SUBPICTURE_QUEUE_SIZE
&&
1425 !is
->subtitleq
.abort_request
) {
1426 SDL_CondWait(is
->subpq_cond
, is
->subpq_mutex
);
1428 SDL_UnlockMutex(is
->subpq_mutex
);
1430 if (is
->subtitleq
.abort_request
)
1433 sp
= &is
->subpq
[is
->subpq_windex
];
1435 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1436 this packet, if any */
1438 if (pkt
->pts
!= AV_NOPTS_VALUE
)
1439 pts
= av_q2d(is
->subtitle_st
->time_base
)*pkt
->pts
;
1441 len1
= avcodec_decode_subtitle(is
->subtitle_st
->codec
,
1442 &sp
->sub
, &got_subtitle
,
1443 pkt
->data
, pkt
->size
);
1446 if (got_subtitle
&& sp
->sub
.format
== 0) {
1449 for (i
= 0; i
< sp
->sub
.num_rects
; i
++)
1451 for (j
= 0; j
< sp
->sub
.rects
[i
].nb_colors
; j
++)
1453 RGBA_IN(r
, g
, b
, a
, sp
->sub
.rects
[i
].rgba_palette
+ j
);
1454 y
= RGB_TO_Y_CCIR(r
, g
, b
);
1455 u
= RGB_TO_U_CCIR(r
, g
, b
, 0);
1456 v
= RGB_TO_V_CCIR(r
, g
, b
, 0);
1457 YUVA_OUT(sp
->sub
.rects
[i
].rgba_palette
+ j
, y
, u
, v
, a
);
1461 /* now we can update the picture count */
1462 if (++is
->subpq_windex
== SUBPICTURE_QUEUE_SIZE
)
1463 is
->subpq_windex
= 0;
1464 SDL_LockMutex(is
->subpq_mutex
);
1466 SDL_UnlockMutex(is
->subpq_mutex
);
1468 av_free_packet(pkt
);
1471 // stream_pause(cur_stream);
1477 /* copy samples for viewing in editor window */
1478 static void update_sample_display(VideoState
*is
, short *samples
, int samples_size
)
1480 int size
, len
, channels
;
1482 channels
= is
->audio_st
->codec
->channels
;
1484 size
= samples_size
/ sizeof(short);
1486 len
= SAMPLE_ARRAY_SIZE
- is
->sample_array_index
;
1489 memcpy(is
->sample_array
+ is
->sample_array_index
, samples
, len
* sizeof(short));
1491 is
->sample_array_index
+= len
;
1492 if (is
->sample_array_index
>= SAMPLE_ARRAY_SIZE
)
1493 is
->sample_array_index
= 0;
1498 /* return the new audio buffer size (samples can be added or deleted
1499 to get better sync if video or external master clock) */
1500 static int synchronize_audio(VideoState
*is
, short *samples
,
1501 int samples_size1
, double pts
)
1503 int n
, samples_size
;
1506 n
= 2 * is
->audio_st
->codec
->channels
;
1507 samples_size
= samples_size1
;
1509 /* if not master, then we try to remove or add samples to correct the clock */
1510 if (((is
->av_sync_type
== AV_SYNC_VIDEO_MASTER
&& is
->video_st
) ||
1511 is
->av_sync_type
== AV_SYNC_EXTERNAL_CLOCK
)) {
1512 double diff
, avg_diff
;
1513 int wanted_size
, min_size
, max_size
, nb_samples
;
1515 ref_clock
= get_master_clock(is
);
1516 diff
= get_audio_clock(is
) - ref_clock
;
1518 if (diff
< AV_NOSYNC_THRESHOLD
) {
1519 is
->audio_diff_cum
= diff
+ is
->audio_diff_avg_coef
* is
->audio_diff_cum
;
1520 if (is
->audio_diff_avg_count
< AUDIO_DIFF_AVG_NB
) {
1521 /* not enough measures to have a correct estimate */
1522 is
->audio_diff_avg_count
++;
1524 /* estimate the A-V difference */
1525 avg_diff
= is
->audio_diff_cum
* (1.0 - is
->audio_diff_avg_coef
);
1527 if (fabs(avg_diff
) >= is
->audio_diff_threshold
) {
1528 wanted_size
= samples_size
+ ((int)(diff
* is
->audio_st
->codec
->sample_rate
) * n
);
1529 nb_samples
= samples_size
/ n
;
1531 min_size
= ((nb_samples
* (100 - SAMPLE_CORRECTION_PERCENT_MAX
)) / 100) * n
;
1532 max_size
= ((nb_samples
* (100 + SAMPLE_CORRECTION_PERCENT_MAX
)) / 100) * n
;
1533 if (wanted_size
< min_size
)
1534 wanted_size
= min_size
;
1535 else if (wanted_size
> max_size
)
1536 wanted_size
= max_size
;
1538 /* add or remove samples to correction the synchro */
1539 if (wanted_size
< samples_size
) {
1540 /* remove samples */
1541 samples_size
= wanted_size
;
1542 } else if (wanted_size
> samples_size
) {
1543 uint8_t *samples_end
, *q
;
1547 nb
= (samples_size
- wanted_size
);
1548 samples_end
= (uint8_t *)samples
+ samples_size
- n
;
1549 q
= samples_end
+ n
;
1551 memcpy(q
, samples_end
, n
);
1555 samples_size
= wanted_size
;
1559 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1560 diff
, avg_diff
, samples_size
- samples_size1
,
1561 is
->audio_clock
, is
->video_clock
, is
->audio_diff_threshold
);
1565 /* too big difference : may be initial PTS errors, so
1567 is
->audio_diff_avg_count
= 0;
1568 is
->audio_diff_cum
= 0;
1572 return samples_size
;
1575 /* decode one audio frame and returns its uncompressed size */
1576 static int audio_decode_frame(VideoState
*is
, double *pts_ptr
)
1578 AVPacket
*pkt
= &is
->audio_pkt
;
1579 AVCodecContext
*dec
= is
->audio_st
->codec
;
1580 int n
, len1
, data_size
;
1584 /* NOTE: the audio packet can contain several frames */
1585 while (is
->audio_pkt_size
> 0) {
1586 data_size
= sizeof(is
->audio_buf1
);
1587 len1
= avcodec_decode_audio2(dec
,
1588 (int16_t *)is
->audio_buf1
, &data_size
,
1589 is
->audio_pkt_data
, is
->audio_pkt_size
);
1591 /* if error, we skip the frame */
1592 is
->audio_pkt_size
= 0;
1596 is
->audio_pkt_data
+= len1
;
1597 is
->audio_pkt_size
-= len1
;
1601 if (dec
->sample_fmt
!= is
->audio_src_fmt
) {
1602 if (is
->reformat_ctx
)
1603 av_audio_convert_free(is
->reformat_ctx
);
1604 is
->reformat_ctx
= av_audio_convert_alloc(SAMPLE_FMT_S16
, 1,
1605 dec
->sample_fmt
, 1, NULL
, 0);
1606 if (!is
->reformat_ctx
) {
1607 fprintf(stderr
, "Cannot convert %s sample format to %s sample format\n",
1608 avcodec_get_sample_fmt_name(dec
->sample_fmt
),
1609 avcodec_get_sample_fmt_name(SAMPLE_FMT_S16
));
1612 is
->audio_src_fmt
= dec
->sample_fmt
;
1615 if (is
->reformat_ctx
) {
1616 const void *ibuf
[6]= {is
->audio_buf1
};
1617 void *obuf
[6]= {is
->audio_buf2
};
1618 int istride
[6]= {av_get_bits_per_sample_format(dec
->sample_fmt
)/8};
1619 int ostride
[6]= {2};
1620 int len
= data_size
/istride
[0];
1621 if (av_audio_convert(is
->reformat_ctx
, obuf
, ostride
, ibuf
, istride
, len
)<0) {
1622 printf("av_audio_convert() failed\n");
1625 is
->audio_buf
= is
->audio_buf2
;
1626 /* FIXME: existing code assume that data_size equals framesize*channels*2
1627 remove this legacy cruft */
1630 is
->audio_buf
= is
->audio_buf1
;
1633 /* if no pts, then compute it */
1634 pts
= is
->audio_clock
;
1636 n
= 2 * dec
->channels
;
1637 is
->audio_clock
+= (double)data_size
/
1638 (double)(n
* dec
->sample_rate
);
1639 #if defined(DEBUG_SYNC)
1641 static double last_clock
;
1642 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1643 is
->audio_clock
- last_clock
,
1644 is
->audio_clock
, pts
);
1645 last_clock
= is
->audio_clock
;
1651 /* free the current packet */
1653 av_free_packet(pkt
);
1655 if (is
->paused
|| is
->audioq
.abort_request
) {
1659 /* read next packet */
1660 if (packet_queue_get(&is
->audioq
, pkt
, 1) < 0)
1662 if(pkt
->data
== flush_pkt
.data
){
1663 avcodec_flush_buffers(dec
);
1667 is
->audio_pkt_data
= pkt
->data
;
1668 is
->audio_pkt_size
= pkt
->size
;
1670 /* if update the audio clock with the pts */
1671 if (pkt
->pts
!= AV_NOPTS_VALUE
) {
1672 is
->audio_clock
= av_q2d(is
->audio_st
->time_base
)*pkt
->pts
;
1677 /* get the current audio output buffer size, in samples. With SDL, we
1678 cannot have a precise information */
1679 static int audio_write_get_buf_size(VideoState
*is
)
1681 return is
->audio_buf_size
- is
->audio_buf_index
;
1685 /* prepare a new audio buffer */
1686 static void sdl_audio_callback(void *opaque
, Uint8
*stream
, int len
)
1688 VideoState
*is
= opaque
;
1689 int audio_size
, len1
;
1692 audio_callback_time
= av_gettime();
1695 if (is
->audio_buf_index
>= is
->audio_buf_size
) {
1696 audio_size
= audio_decode_frame(is
, &pts
);
1697 if (audio_size
< 0) {
1698 /* if error, just output silence */
1699 is
->audio_buf_size
= 1024;
1700 memset(is
->audio_buf
, 0, is
->audio_buf_size
);
1703 update_sample_display(is
, (int16_t *)is
->audio_buf
, audio_size
);
1704 audio_size
= synchronize_audio(is
, (int16_t *)is
->audio_buf
, audio_size
,
1706 is
->audio_buf_size
= audio_size
;
1708 is
->audio_buf_index
= 0;
1710 len1
= is
->audio_buf_size
- is
->audio_buf_index
;
1713 memcpy(stream
, (uint8_t *)is
->audio_buf
+ is
->audio_buf_index
, len1
);
1716 is
->audio_buf_index
+= len1
;
1720 /* open a given stream. Return 0 if OK */
1721 static int stream_component_open(VideoState
*is
, int stream_index
)
1723 AVFormatContext
*ic
= is
->ic
;
1724 AVCodecContext
*enc
;
1726 SDL_AudioSpec wanted_spec
, spec
;
1728 if (stream_index
< 0 || stream_index
>= ic
->nb_streams
)
1730 enc
= ic
->streams
[stream_index
]->codec
;
1732 /* prepare audio output */
1733 if (enc
->codec_type
== CODEC_TYPE_AUDIO
) {
1734 if (enc
->channels
> 0) {
1735 enc
->request_channels
= FFMIN(2, enc
->channels
);
1737 enc
->request_channels
= 2;
1741 codec
= avcodec_find_decoder(enc
->codec_id
);
1742 enc
->debug_mv
= debug_mv
;
1744 enc
->workaround_bugs
= workaround_bugs
;
1745 enc
->lowres
= lowres
;
1746 if(lowres
) enc
->flags
|= CODEC_FLAG_EMU_EDGE
;
1747 enc
->idct_algo
= idct
;
1748 if(fast
) enc
->flags2
|= CODEC_FLAG2_FAST
;
1749 enc
->skip_frame
= skip_frame
;
1750 enc
->skip_idct
= skip_idct
;
1751 enc
->skip_loop_filter
= skip_loop_filter
;
1752 enc
->error_resilience
= error_resilience
;
1753 enc
->error_concealment
= error_concealment
;
1755 avcodec_open(enc
, codec
) < 0)
1758 /* prepare audio output */
1759 if (enc
->codec_type
== CODEC_TYPE_AUDIO
) {
1760 wanted_spec
.freq
= enc
->sample_rate
;
1761 wanted_spec
.format
= AUDIO_S16SYS
;
1762 wanted_spec
.channels
= enc
->channels
;
1763 wanted_spec
.silence
= 0;
1764 wanted_spec
.samples
= SDL_AUDIO_BUFFER_SIZE
;
1765 wanted_spec
.callback
= sdl_audio_callback
;
1766 wanted_spec
.userdata
= is
;
1767 if (SDL_OpenAudio(&wanted_spec
, &spec
) < 0) {
1768 fprintf(stderr
, "SDL_OpenAudio: %s\n", SDL_GetError());
1771 is
->audio_hw_buf_size
= spec
.size
;
1772 is
->audio_src_fmt
= SAMPLE_FMT_S16
;
1776 avcodec_thread_init(enc
, thread_count
);
1777 enc
->thread_count
= thread_count
;
1778 switch(enc
->codec_type
) {
1779 case CODEC_TYPE_AUDIO
:
1780 is
->audio_stream
= stream_index
;
1781 is
->audio_st
= ic
->streams
[stream_index
];
1782 is
->audio_buf_size
= 0;
1783 is
->audio_buf_index
= 0;
1785 /* init averaging filter */
1786 is
->audio_diff_avg_coef
= exp(log(0.01) / AUDIO_DIFF_AVG_NB
);
1787 is
->audio_diff_avg_count
= 0;
1788 /* since we do not have a precise anough audio fifo fullness,
1789 we correct audio sync only if larger than this threshold */
1790 is
->audio_diff_threshold
= 2.0 * SDL_AUDIO_BUFFER_SIZE
/ enc
->sample_rate
;
1792 memset(&is
->audio_pkt
, 0, sizeof(is
->audio_pkt
));
1793 packet_queue_init(&is
->audioq
);
1796 case CODEC_TYPE_VIDEO
:
1797 is
->video_stream
= stream_index
;
1798 is
->video_st
= ic
->streams
[stream_index
];
1800 is
->frame_last_delay
= 40e-3;
1801 is
->frame_timer
= (double)av_gettime() / 1000000.0;
1802 is
->video_current_pts_time
= av_gettime();
1804 packet_queue_init(&is
->videoq
);
1805 is
->video_tid
= SDL_CreateThread(video_thread
, is
);
1807 enc
-> get_buffer
= my_get_buffer
;
1808 enc
->release_buffer
= my_release_buffer
;
1810 case CODEC_TYPE_SUBTITLE
:
1811 is
->subtitle_stream
= stream_index
;
1812 is
->subtitle_st
= ic
->streams
[stream_index
];
1813 packet_queue_init(&is
->subtitleq
);
1815 is
->subtitle_tid
= SDL_CreateThread(subtitle_thread
, is
);
1823 static void stream_component_close(VideoState
*is
, int stream_index
)
1825 AVFormatContext
*ic
= is
->ic
;
1826 AVCodecContext
*enc
;
1828 if (stream_index
< 0 || stream_index
>= ic
->nb_streams
)
1830 enc
= ic
->streams
[stream_index
]->codec
;
1832 switch(enc
->codec_type
) {
1833 case CODEC_TYPE_AUDIO
:
1834 packet_queue_abort(&is
->audioq
);
1838 packet_queue_end(&is
->audioq
);
1839 if (is
->reformat_ctx
)
1840 av_audio_convert_free(is
->reformat_ctx
);
1842 case CODEC_TYPE_VIDEO
:
1843 packet_queue_abort(&is
->videoq
);
1845 /* note: we also signal this mutex to make sure we deblock the
1846 video thread in all cases */
1847 SDL_LockMutex(is
->pictq_mutex
);
1848 SDL_CondSignal(is
->pictq_cond
);
1849 SDL_UnlockMutex(is
->pictq_mutex
);
1851 SDL_WaitThread(is
->video_tid
, NULL
);
1853 packet_queue_end(&is
->videoq
);
1855 case CODEC_TYPE_SUBTITLE
:
1856 packet_queue_abort(&is
->subtitleq
);
1858 /* note: we also signal this mutex to make sure we deblock the
1859 video thread in all cases */
1860 SDL_LockMutex(is
->subpq_mutex
);
1861 is
->subtitle_stream_changed
= 1;
1863 SDL_CondSignal(is
->subpq_cond
);
1864 SDL_UnlockMutex(is
->subpq_mutex
);
1866 SDL_WaitThread(is
->subtitle_tid
, NULL
);
1868 packet_queue_end(&is
->subtitleq
);
1875 switch(enc
->codec_type
) {
1876 case CODEC_TYPE_AUDIO
:
1877 is
->audio_st
= NULL
;
1878 is
->audio_stream
= -1;
1880 case CODEC_TYPE_VIDEO
:
1881 is
->video_st
= NULL
;
1882 is
->video_stream
= -1;
1884 case CODEC_TYPE_SUBTITLE
:
1885 is
->subtitle_st
= NULL
;
1886 is
->subtitle_stream
= -1;
1893 static void dump_stream_info(const AVFormatContext
*s
)
1896 fprintf(stderr
, "Track: %d\n", s
->track
);
1897 if (s
->title
[0] != '\0')
1898 fprintf(stderr
, "Title: %s\n", s
->title
);
1899 if (s
->author
[0] != '\0')
1900 fprintf(stderr
, "Author: %s\n", s
->author
);
1901 if (s
->copyright
[0] != '\0')
1902 fprintf(stderr
, "Copyright: %s\n", s
->copyright
);
1903 if (s
->comment
[0] != '\0')
1904 fprintf(stderr
, "Comment: %s\n", s
->comment
);
1905 if (s
->album
[0] != '\0')
1906 fprintf(stderr
, "Album: %s\n", s
->album
);
1908 fprintf(stderr
, "Year: %d\n", s
->year
);
1909 if (s
->genre
[0] != '\0')
1910 fprintf(stderr
, "Genre: %s\n", s
->genre
);
1913 /* since we have only one decoding thread, we can use a global
1914 variable instead of a thread local variable */
1915 static VideoState
*global_video_state
;
1917 static int decode_interrupt_cb(void)
1919 return (global_video_state
&& global_video_state
->abort_request
);
1922 /* this thread gets the stream from the disk or the network */
1923 static int decode_thread(void *arg
)
1925 VideoState
*is
= arg
;
1926 AVFormatContext
*ic
;
1927 int err
, i
, ret
, video_index
, audio_index
;
1928 AVPacket pkt1
, *pkt
= &pkt1
;
1929 AVFormatParameters params
, *ap
= ¶ms
;
1933 is
->video_stream
= -1;
1934 is
->audio_stream
= -1;
1935 is
->subtitle_stream
= -1;
1937 global_video_state
= is
;
1938 url_set_interrupt_cb(decode_interrupt_cb
);
1940 memset(ap
, 0, sizeof(*ap
));
1942 ap
->width
= frame_width
;
1943 ap
->height
= frame_height
;
1944 ap
->time_base
= (AVRational
){1, 25};
1945 ap
->pix_fmt
= frame_pix_fmt
;
1947 err
= av_open_input_file(&ic
, is
->filename
, is
->iformat
, 0, ap
);
1949 print_error(is
->filename
, err
);
1956 ic
->flags
|= AVFMT_FLAG_GENPTS
;
1958 err
= av_find_stream_info(ic
);
1960 fprintf(stderr
, "%s: could not find codec parameters\n", is
->filename
);
1965 ic
->pb
->eof_reached
= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
1967 /* if seeking requested, we execute it */
1968 if (start_time
!= AV_NOPTS_VALUE
) {
1971 timestamp
= start_time
;
1972 /* add the stream start time */
1973 if (ic
->start_time
!= AV_NOPTS_VALUE
)
1974 timestamp
+= ic
->start_time
;
1975 ret
= av_seek_frame(ic
, -1, timestamp
, AVSEEK_FLAG_BACKWARD
);
1977 fprintf(stderr
, "%s: could not seek to position %0.3f\n",
1978 is
->filename
, (double)timestamp
/ AV_TIME_BASE
);
1982 for(i
= 0; i
< ic
->nb_streams
; i
++) {
1983 AVCodecContext
*enc
= ic
->streams
[i
]->codec
;
1984 switch(enc
->codec_type
) {
1985 case CODEC_TYPE_AUDIO
:
1986 if ((audio_index
< 0 || wanted_audio_stream
-- > 0) && !audio_disable
)
1989 case CODEC_TYPE_VIDEO
:
1990 if ((video_index
< 0 || wanted_video_stream
-- > 0) && !video_disable
)
1998 dump_format(ic
, 0, is
->filename
, 0);
1999 dump_stream_info(ic
);
2002 /* open the streams */
2003 if (audio_index
>= 0) {
2004 stream_component_open(is
, audio_index
);
2007 if (video_index
>= 0) {
2008 stream_component_open(is
, video_index
);
2010 if (!display_disable
)
2014 if (is
->video_stream
< 0 && is
->audio_stream
< 0) {
2015 fprintf(stderr
, "%s: could not open codecs\n", is
->filename
);
2021 if (is
->abort_request
)
2023 if (is
->paused
!= is
->last_paused
) {
2024 is
->last_paused
= is
->paused
;
2030 #if defined(CONFIG_RTSP_DEMUXER) || defined(CONFIG_MMSH_PROTOCOL)
2032 (!strcmp(ic
->iformat
->name
, "rtsp") ||
2033 (ic
->pb
&& !strcmp(url_fileno(ic
->pb
)->prot
->name
, "mmsh")))) {
2034 /* wait 10 ms to avoid trying to get another packet */
2041 int stream_index
= -1;
2042 int64_t seek_target
= is
->seek_pos
;
2044 if (is
-> video_stream
>= 0) stream_index
= is
-> video_stream
;
2045 else if(is
-> audio_stream
>= 0) stream_index
= is
-> audio_stream
;
2046 else if(is
->subtitle_stream
>= 0) stream_index
= is
->subtitle_stream
;
2048 if(stream_index
>=0){
2049 seek_target
= av_rescale_q(seek_target
, AV_TIME_BASE_Q
, ic
->streams
[stream_index
]->time_base
);
2052 ret
= av_seek_frame(is
->ic
, stream_index
, seek_target
, is
->seek_flags
);
2054 fprintf(stderr
, "%s: error while seeking\n", is
->ic
->filename
);
2056 if (is
->audio_stream
>= 0) {
2057 packet_queue_flush(&is
->audioq
);
2058 packet_queue_put(&is
->audioq
, &flush_pkt
);
2060 if (is
->subtitle_stream
>= 0) {
2061 packet_queue_flush(&is
->subtitleq
);
2062 packet_queue_put(&is
->subtitleq
, &flush_pkt
);
2064 if (is
->video_stream
>= 0) {
2065 packet_queue_flush(&is
->videoq
);
2066 packet_queue_put(&is
->videoq
, &flush_pkt
);
2072 /* if the queue are full, no need to read more */
2073 if (is
->audioq
.size
> MAX_AUDIOQ_SIZE
||
2074 is
->videoq
.size
> MAX_VIDEOQ_SIZE
||
2075 is
->subtitleq
.size
> MAX_SUBTITLEQ_SIZE
||
2081 ret
= av_read_frame(ic
, pkt
);
2083 if (url_ferror(ic
->pb
) == 0) {
2084 SDL_Delay(100); /* wait for user event */
2089 if (pkt
->stream_index
== is
->audio_stream
) {
2090 packet_queue_put(&is
->audioq
, pkt
);
2091 } else if (pkt
->stream_index
== is
->video_stream
) {
2092 packet_queue_put(&is
->videoq
, pkt
);
2093 } else if (pkt
->stream_index
== is
->subtitle_stream
) {
2094 packet_queue_put(&is
->subtitleq
, pkt
);
2096 av_free_packet(pkt
);
2099 /* wait until the end */
2100 while (!is
->abort_request
) {
2106 /* disable interrupting */
2107 global_video_state
= NULL
;
2109 /* close each stream */
2110 if (is
->audio_stream
>= 0)
2111 stream_component_close(is
, is
->audio_stream
);
2112 if (is
->video_stream
>= 0)
2113 stream_component_close(is
, is
->video_stream
);
2114 if (is
->subtitle_stream
>= 0)
2115 stream_component_close(is
, is
->subtitle_stream
);
2117 av_close_input_file(is
->ic
);
2118 is
->ic
= NULL
; /* safety */
2120 url_set_interrupt_cb(NULL
);
2125 event
.type
= FF_QUIT_EVENT
;
2126 event
.user
.data1
= is
;
2127 SDL_PushEvent(&event
);
2132 static VideoState
*stream_open(const char *filename
, AVInputFormat
*iformat
)
2136 is
= av_mallocz(sizeof(VideoState
));
2139 av_strlcpy(is
->filename
, filename
, sizeof(is
->filename
));
2140 is
->iformat
= iformat
;
2144 /* start video display */
2145 is
->pictq_mutex
= SDL_CreateMutex();
2146 is
->pictq_cond
= SDL_CreateCond();
2148 is
->subpq_mutex
= SDL_CreateMutex();
2149 is
->subpq_cond
= SDL_CreateCond();
2151 /* add the refresh timer to draw the picture */
2152 schedule_refresh(is
, 40);
2154 is
->av_sync_type
= av_sync_type
;
2155 is
->parse_tid
= SDL_CreateThread(decode_thread
, is
);
2156 if (!is
->parse_tid
) {
2163 static void stream_close(VideoState
*is
)
2167 /* XXX: use a special url_shutdown call to abort parse cleanly */
2168 is
->abort_request
= 1;
2169 SDL_WaitThread(is
->parse_tid
, NULL
);
2171 /* free all pictures */
2172 for(i
=0;i
<VIDEO_PICTURE_QUEUE_SIZE
; i
++) {
2175 SDL_FreeYUVOverlay(vp
->bmp
);
2179 SDL_DestroyMutex(is
->pictq_mutex
);
2180 SDL_DestroyCond(is
->pictq_cond
);
2181 SDL_DestroyMutex(is
->subpq_mutex
);
2182 SDL_DestroyCond(is
->subpq_cond
);
2185 static void stream_cycle_channel(VideoState
*is
, int codec_type
)
2187 AVFormatContext
*ic
= is
->ic
;
2188 int start_index
, stream_index
;
2191 if (codec_type
== CODEC_TYPE_VIDEO
)
2192 start_index
= is
->video_stream
;
2193 else if (codec_type
== CODEC_TYPE_AUDIO
)
2194 start_index
= is
->audio_stream
;
2196 start_index
= is
->subtitle_stream
;
2197 if (start_index
< (codec_type
== CODEC_TYPE_SUBTITLE
? -1 : 0))
2199 stream_index
= start_index
;
2201 if (++stream_index
>= is
->ic
->nb_streams
)
2203 if (codec_type
== CODEC_TYPE_SUBTITLE
)
2210 if (stream_index
== start_index
)
2212 st
= ic
->streams
[stream_index
];
2213 if (st
->codec
->codec_type
== codec_type
) {
2214 /* check that parameters are OK */
2215 switch(codec_type
) {
2216 case CODEC_TYPE_AUDIO
:
2217 if (st
->codec
->sample_rate
!= 0 &&
2218 st
->codec
->channels
!= 0)
2221 case CODEC_TYPE_VIDEO
:
2222 case CODEC_TYPE_SUBTITLE
:
2230 stream_component_close(is
, start_index
);
2231 stream_component_open(is
, stream_index
);
2235 static void toggle_full_screen(void)
2237 is_full_screen
= !is_full_screen
;
2238 if (!fs_screen_width
) {
2239 /* use default SDL method */
2240 // SDL_WM_ToggleFullScreen(screen);
2242 video_open(cur_stream
);
2245 static void toggle_pause(void)
2248 stream_pause(cur_stream
);
2252 static void step_to_next_frame(void)
2255 /* if the stream is paused unpause it, then step */
2256 if (cur_stream
->paused
)
2257 stream_pause(cur_stream
);
2262 static void do_exit(void)
2265 stream_close(cur_stream
);
2274 static void toggle_audio_display(void)
2277 cur_stream
->show_audio
= !cur_stream
->show_audio
;
2281 /* handle an event sent by the GUI */
2282 static void event_loop(void)
2285 double incr
, pos
, frac
;
2288 SDL_WaitEvent(&event
);
2289 switch(event
.type
) {
2291 switch(event
.key
.keysym
.sym
) {
2297 toggle_full_screen();
2303 case SDLK_s
: //S: Step to next frame
2304 step_to_next_frame();
2308 stream_cycle_channel(cur_stream
, CODEC_TYPE_AUDIO
);
2312 stream_cycle_channel(cur_stream
, CODEC_TYPE_VIDEO
);
2316 stream_cycle_channel(cur_stream
, CODEC_TYPE_SUBTITLE
);
2319 toggle_audio_display();
2334 if (seek_by_bytes
) {
2335 pos
= url_ftell(cur_stream
->ic
->pb
);
2336 if (cur_stream
->ic
->bit_rate
)
2337 incr
*= cur_stream
->ic
->bit_rate
/ 60.0;
2341 stream_seek(cur_stream
, pos
, incr
);
2343 pos
= get_master_clock(cur_stream
);
2345 stream_seek(cur_stream
, (int64_t)(pos
* AV_TIME_BASE
), incr
);
2353 case SDL_MOUSEBUTTONDOWN
:
2356 int tns
, thh
, tmm
, tss
;
2357 tns
= cur_stream
->ic
->duration
/1000000LL;
2359 tmm
= (tns
%3600)/60;
2361 frac
= (double)event
.button
.x
/(double)cur_stream
->width
;
2366 fprintf(stderr
, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac
*100,
2367 hh
, mm
, ss
, thh
, tmm
, tss
);
2368 stream_seek(cur_stream
, (int64_t)(cur_stream
->ic
->start_time
+frac
*cur_stream
->ic
->duration
), 0);
2371 case SDL_VIDEORESIZE
:
2373 screen
= SDL_SetVideoMode(event
.resize
.w
, event
.resize
.h
, 0,
2374 SDL_HWSURFACE
|SDL_RESIZABLE
|SDL_ASYNCBLIT
|SDL_HWACCEL
);
2375 screen_width
= cur_stream
->width
= event
.resize
.w
;
2376 screen_height
= cur_stream
->height
= event
.resize
.h
;
2383 case FF_ALLOC_EVENT
:
2384 video_open(event
.user
.data1
);
2385 alloc_picture(event
.user
.data1
);
2387 case FF_REFRESH_EVENT
:
2388 video_refresh_timer(event
.user
.data1
);
2396 static void opt_frame_size(const char *arg
)
2398 if (av_parse_video_frame_size(&frame_width
, &frame_height
, arg
) < 0) {
2399 fprintf(stderr
, "Incorrect frame size\n");
2402 if ((frame_width
% 2) != 0 || (frame_height
% 2) != 0) {
2403 fprintf(stderr
, "Frame size must be a multiple of 2\n");
2408 static int opt_width(const char *opt
, const char *arg
)
2410 screen_width
= parse_number_or_die(opt
, arg
, OPT_INT64
, 1, INT_MAX
);
2414 static int opt_height(const char *opt
, const char *arg
)
2416 screen_height
= parse_number_or_die(opt
, arg
, OPT_INT64
, 1, INT_MAX
);
2420 static void opt_format(const char *arg
)
2422 file_iformat
= av_find_input_format(arg
);
2423 if (!file_iformat
) {
2424 fprintf(stderr
, "Unknown input format: %s\n", arg
);
2429 static void opt_frame_pix_fmt(const char *arg
)
2431 frame_pix_fmt
= avcodec_get_pix_fmt(arg
);
2434 static int opt_sync(const char *opt
, const char *arg
)
2436 if (!strcmp(arg
, "audio"))
2437 av_sync_type
= AV_SYNC_AUDIO_MASTER
;
2438 else if (!strcmp(arg
, "video"))
2439 av_sync_type
= AV_SYNC_VIDEO_MASTER
;
2440 else if (!strcmp(arg
, "ext"))
2441 av_sync_type
= AV_SYNC_EXTERNAL_CLOCK
;
2443 fprintf(stderr
, "Unknown value for %s: %s\n", opt
, arg
);
2449 static int opt_seek(const char *opt
, const char *arg
)
2451 start_time
= parse_time_or_die(opt
, arg
, 1);
2455 static int opt_debug(const char *opt
, const char *arg
)
2457 av_log_set_level(99);
2458 debug
= parse_number_or_die(opt
, arg
, OPT_INT64
, 0, INT_MAX
);
2462 static int opt_vismv(const char *opt
, const char *arg
)
2464 debug_mv
= parse_number_or_die(opt
, arg
, OPT_INT64
, INT_MIN
, INT_MAX
);
2468 static int opt_thread_count(const char *opt
, const char *arg
)
2470 thread_count
= parse_number_or_die(opt
, arg
, OPT_INT64
, 0, INT_MAX
);
2471 #if !defined(HAVE_THREADS)
2472 fprintf(stderr
, "Warning: not compiled with thread support, using thread emulation\n");
2477 static const OptionDef options
[] = {
2478 { "h", OPT_EXIT
, {(void*)show_help
}, "show help" },
2479 { "version", OPT_EXIT
, {(void*)show_version
}, "show version" },
2480 { "L", OPT_EXIT
, {(void*)show_license
}, "show license" },
2481 { "formats", OPT_EXIT
, {(void*)show_formats
}, "show available formats, codecs, protocols, ..." },
2482 { "x", HAS_ARG
| OPT_FUNC2
, {(void*)opt_width
}, "force displayed width", "width" },
2483 { "y", HAS_ARG
| OPT_FUNC2
, {(void*)opt_height
}, "force displayed height", "height" },
2484 { "s", HAS_ARG
| OPT_VIDEO
, {(void*)opt_frame_size
}, "set frame size (WxH or abbreviation)", "size" },
2485 { "fs", OPT_BOOL
, {(void*)&is_full_screen
}, "force full screen" },
2486 { "an", OPT_BOOL
, {(void*)&audio_disable
}, "disable audio" },
2487 { "vn", OPT_BOOL
, {(void*)&video_disable
}, "disable video" },
2488 { "ast", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&wanted_audio_stream
}, "", "" },
2489 { "vst", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&wanted_video_stream
}, "", "" },
2490 { "ss", HAS_ARG
| OPT_FUNC2
, {(void*)&opt_seek
}, "seek to a given position in seconds", "pos" },
2491 { "bytes", OPT_BOOL
, {(void*)&seek_by_bytes
}, "seek by bytes" },
2492 { "nodisp", OPT_BOOL
, {(void*)&display_disable
}, "disable graphical display" },
2493 { "f", HAS_ARG
, {(void*)opt_format
}, "force format", "fmt" },
2494 { "pix_fmt", HAS_ARG
| OPT_EXPERT
| OPT_VIDEO
, {(void*)opt_frame_pix_fmt
}, "set pixel format", "format" },
2495 { "stats", OPT_BOOL
| OPT_EXPERT
, {(void*)&show_status
}, "show status", "" },
2496 { "debug", HAS_ARG
| OPT_FUNC2
| OPT_EXPERT
, {(void*)opt_debug
}, "print specific debug info", "" },
2497 { "bug", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&workaround_bugs
}, "workaround bugs", "" },
2498 { "vismv", HAS_ARG
| OPT_FUNC2
| OPT_EXPERT
, {(void*)opt_vismv
}, "visualize motion vectors", "" },
2499 { "fast", OPT_BOOL
| OPT_EXPERT
, {(void*)&fast
}, "non spec compliant optimizations", "" },
2500 { "genpts", OPT_BOOL
| OPT_EXPERT
, {(void*)&genpts
}, "generate pts", "" },
2501 { "drp", OPT_BOOL
|OPT_EXPERT
, {(void*)&decoder_reorder_pts
}, "let decoder reorder pts", ""},
2502 { "lowres", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&lowres
}, "", "" },
2503 { "skiploop", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&skip_loop_filter
}, "", "" },
2504 { "skipframe", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&skip_frame
}, "", "" },
2505 { "skipidct", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&skip_idct
}, "", "" },
2506 { "idct", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&idct
}, "set idct algo", "algo" },
2507 { "er", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&error_resilience
}, "set error detection threshold (0-4)", "threshold" },
2508 { "ec", OPT_INT
| HAS_ARG
| OPT_EXPERT
, {(void*)&error_concealment
}, "set error concealment options", "bit_mask" },
2509 { "sync", HAS_ARG
| OPT_FUNC2
| OPT_EXPERT
, {(void*)opt_sync
}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2510 { "threads", HAS_ARG
| OPT_FUNC2
| OPT_EXPERT
, {(void*)opt_thread_count
}, "thread count", "count" },
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();
2556 parse_options(argc
, argv
, options
, opt_input_file
);
2558 if (!input_filename
) {
2563 if (display_disable
) {
2566 flags
= SDL_INIT_VIDEO
| SDL_INIT_AUDIO
| SDL_INIT_TIMER
;
2567 #if !defined(__MINGW32__) && !defined(__APPLE__)
2568 flags
|= SDL_INIT_EVENTTHREAD
; /* Not supported on Windows or Mac OS X */
2570 if (SDL_Init (flags
)) {
2571 fprintf(stderr
, "Could not initialize SDL - %s\n", SDL_GetError());
2575 if (!display_disable
) {
2576 #ifdef HAVE_SDL_VIDEO_SIZE
2577 const SDL_VideoInfo
*vi
= SDL_GetVideoInfo();
2578 fs_screen_width
= vi
->current_w
;
2579 fs_screen_height
= vi
->current_h
;
2583 SDL_EventState(SDL_ACTIVEEVENT
, SDL_IGNORE
);
2584 SDL_EventState(SDL_MOUSEMOTION
, SDL_IGNORE
);
2585 SDL_EventState(SDL_SYSWMEVENT
, SDL_IGNORE
);
2586 SDL_EventState(SDL_USEREVENT
, SDL_IGNORE
);
2588 av_init_packet(&flush_pkt
);
2589 flush_pkt
.data
= "FLUSH";
2591 cur_stream
= stream_open(input_filename
, file_iformat
);