2 * This file is part of MPlayer.
4 * MPlayer is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * MPlayer is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 #include <libavcodec/avcodec.h>
21 #include "libmpdemux/stheader.h"
26 void reset_avsub(struct sh_sub
*sh
)
29 avcodec_close(sh
->context
);
30 av_freep(&sh
->context
);
35 * Decode a subtitle packet via libavcodec.
36 * \return < 0 on error, > 0 if further processing is needed
38 int decode_avsub(struct sh_sub
*sh
, uint8_t *data
, int size
,
39 double pts
, double duration
)
41 AVCodecContext
*ctx
= sh
->context
;
42 enum CodecID cid
= CODEC_ID_NONE
;
50 cid
= CODEC_ID_DVB_SUBTITLE
; break;
52 cid
= CODEC_ID_HDMV_PGS_SUBTITLE
; break;
54 cid
= CODEC_ID_XSUB
; break;
62 pkt
.convergence_duration
= duration
* 1000;
66 avcodec_register_all();
67 ctx
= avcodec_alloc_context();
68 sub_codec
= avcodec_find_decoder(cid
);
69 if (!ctx
|| !sub_codec
|| avcodec_open(ctx
, sub_codec
) < 0) {
70 mp_msg(MSGT_SUBREADER
, MSGL_FATAL
,
71 "Could not open subtitle decoder\n");
77 res
= avcodec_decode_subtitle2(ctx
, &sub
, &got_sub
, &pkt
);
80 if (pts
!= MP_NOPTS_VALUE
) {
81 if (sub
.end_display_time
> sub
.start_display_time
)
82 duration
= (sub
.end_display_time
- sub
.start_display_time
) / 1000.0;
83 pts
+= sub
.start_display_time
/ 1000.0;
85 double endpts
= MP_NOPTS_VALUE
;
86 if (pts
!= MP_NOPTS_VALUE
&& duration
>= 0)
87 endpts
= pts
+ duration
;
88 if (got_sub
&& vo_spudec
&& sub
.num_rects
== 0)
89 spudec_set_paletted(vo_spudec
, NULL
, 0, NULL
, 0, 0, 0, 0, pts
, endpts
);
90 if (got_sub
&& sub
.num_rects
> 0) {
91 switch (sub
.rects
[0]->type
) {
94 vo_spudec
= spudec_new_scaled(NULL
, ctx
->width
, ctx
->height
, NULL
, 0);
95 spudec_set_paletted(vo_spudec
,
96 sub
.rects
[0]->pict
.data
[0],
97 sub
.rects
[0]->pict
.linesize
[0],
98 sub
.rects
[0]->pict
.data
[1],
105 vo_osd_changed(OSDTYPE_SPU
);
108 mp_msg(MSGT_SUBREADER
, MSGL_ERR
, "sd_avsub: unsupported subtitle "
109 "type from libavcodec\n");
114 #if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(52, 82, 0)
116 avsubtitle_free(&sub
);