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submodule
ffmpeg
Commits
255d9c57
Commit
255d9c57
authored
Aug 04, 2013
by
Diego Biurrun
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Plain Diff
riff: Move demuxing code to a separate file.
parent
3dd5c95d
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Showing
4 changed files
with
243 additions
and
204 deletions
+243
-204
configure
configure
+13
-0
Makefile
libavformat/Makefile
+1
-0
riff.c
libavformat/riff.c
+0
-204
riffdec.c
libavformat/riffdec.c
+229
-0
No files found.
configure
View file @
255d9c57
...
...
@@ -1390,6 +1390,7 @@ CONFIG_EXTRA="
mpegvideoenc
nettle
rangecoder
riffdec
riffenc
rtpdec
rtpenc_chain
...
...
@@ -1792,19 +1793,26 @@ libxvid_encoder_deps="libxvid"
# demuxers / muxers
ac3_demuxer_select
=
"ac3_parser"
asf_demuxer_select
=
"riffdec"
asf_muxer_select
=
"riffenc"
asf_stream_muxer_select
=
"asf_muxer"
avi_demuxer_select
=
"riffdec"
avi_muxer_select
=
"riffenc"
avisynth_demuxer_deps
=
"avisynth"
avisynth_demuxer_select
=
"riffdec"
caf_demuxer_select
=
"riffdec"
dirac_demuxer_select
=
"dirac_parser"
dxa_demuxer_select
=
"riffdec"
eac3_demuxer_select
=
"ac3_parser"
flac_demuxer_select
=
"flac_parser"
ipod_muxer_select
=
"mov_muxer"
ismv_muxer_select
=
"mov_muxer"
matroska_audio_muxer_select
=
"matroska_muxer"
matroska_demuxer_select
=
"riffdec"
matroska_demuxer_suggest
=
"bzlib lzo zlib"
matroska_muxer_select
=
"riffenc"
mmf_muxer_select
=
"riffenc"
mov_demuxer_select
=
"riffdec"
mov_demuxer_suggest
=
"zlib"
mov_muxer_select
=
"riffenc rtpenc_chain"
mp3_demuxer_select
=
"mpegaudio_parser"
...
...
@@ -1813,6 +1821,7 @@ mpegts_muxer_select="adts_muxer latm_muxer"
mpegtsraw_demuxer_select
=
"mpegts_demuxer"
mxf_d10_muxer_select
=
"mxf_muxer"
nut_muxer_select
=
"riffenc"
nuv_demuxer_select
=
"riffdec"
ogg_demuxer_select
=
"golomb"
psp_muxer_select
=
"mov_muxer"
rtp_demuxer_select
=
"sdp_demuxer"
...
...
@@ -1828,8 +1837,12 @@ tak_demuxer_select="tak_parser"
tg2_muxer_select
=
"mov_muxer"
tgp_muxer_select
=
"mov_muxer"
w64_demuxer_deps
=
"wav_demuxer"
wav_demuxer_select
=
"riffdec"
wav_muxer_select
=
"riffenc"
webm_muxer_select
=
"riffenc"
wtv_demuxer_select
=
"riffdec"
xmv_demuxer_select
=
"riffdec"
xwma_demuxer_select
=
"riffdec"
# indevs / outdevs
alsa_indev_deps
=
"alsa_asoundlib_h snd_pcm_htimestamp"
...
...
libavformat/Makefile
View file @
255d9c57
...
...
@@ -24,6 +24,7 @@ OBJS = allformats.o \
utils.o
\
OBJS-$(CONFIG_NETWORK)
+=
network.o
OBJS-$(CONFIG_RIFFDEC)
+=
riffdec.o
OBJS-$(CONFIG_RIFFENC)
+=
riffenc.o
OBJS-$(CONFIG_RTPDEC)
+=
rdt.o
\
rtp.o
\
...
...
libavformat/riff.c
View file @
255d9c57
...
...
@@ -20,12 +20,9 @@
*/
#include "libavutil/error.h"
#include "libavutil/log.h"
#include "libavcodec/avcodec.h"
#include "avformat.h"
#include "avio_internal.h"
#include "riff.h"
#include "libavcodec/bytestream.h"
/* Note: When encoding, the first matching tag is used, so order is
* important if multiple tags are possible for a given codec. */
...
...
@@ -380,14 +377,6 @@ const AVCodecTag ff_codec_wav_tags[] = {
{
AV_CODEC_ID_NONE
,
0
},
};
const
AVCodecGuid
ff_codec_wav_guids
[]
=
{
{
AV_CODEC_ID_AC3
,
{
0x2C
,
0x80
,
0x6D
,
0xE0
,
0x46
,
0xDB
,
0xCF
,
0x11
,
0xB4
,
0xD1
,
0x00
,
0x80
,
0x5F
,
0x6C
,
0xBB
,
0xEA
}
},
{
AV_CODEC_ID_ATRAC3P
,
{
0xBF
,
0xAA
,
0x23
,
0xE9
,
0x58
,
0xCB
,
0x71
,
0x44
,
0xA1
,
0x19
,
0xFF
,
0xFA
,
0x01
,
0xE4
,
0xCE
,
0x62
}
},
{
AV_CODEC_ID_EAC3
,
{
0xAF
,
0x87
,
0xFB
,
0xA7
,
0x02
,
0x2D
,
0xFB
,
0x42
,
0xA4
,
0xD4
,
0x05
,
0xCD
,
0x93
,
0x84
,
0x3B
,
0xDD
}
},
{
AV_CODEC_ID_MP2
,
{
0x2B
,
0x80
,
0x6D
,
0xE0
,
0x46
,
0xDB
,
0xCF
,
0x11
,
0xB4
,
0xD1
,
0x00
,
0x80
,
0x5F
,
0x6C
,
0xBB
,
0xEA
}
},
{
AV_CODEC_ID_NONE
}
};
const
AVMetadataConv
ff_riff_info_conv
[]
=
{
{
"IART"
,
"artist"
},
{
"ICMT"
,
"comment"
},
...
...
@@ -403,15 +392,6 @@ const AVMetadataConv ff_riff_info_conv[] = {
{
0
},
};
enum
AVCodecID
ff_codec_guid_get_id
(
const
AVCodecGuid
*
guids
,
ff_asf_guid
guid
)
{
int
i
;
for
(
i
=
0
;
guids
[
i
].
id
!=
AV_CODEC_ID_NONE
;
i
++
)
if
(
!
ff_guidcmp
(
guids
[
i
].
guid
,
guid
))
return
guids
[
i
].
id
;
return
AV_CODEC_ID_NONE
;
}
const
struct
AVCodecTag
*
avformat_get_riff_video_tags
(
void
)
{
return
ff_codec_bmp_tags
;
...
...
@@ -421,187 +401,3 @@ const struct AVCodecTag *avformat_get_riff_audio_tags(void)
{
return
ff_codec_wav_tags
;
}
#if CONFIG_DEMUXERS
/* We could be given one of the three possible structures here:
* WAVEFORMAT, PCMWAVEFORMAT or WAVEFORMATEX. Each structure
* is an expansion of the previous one with the fields added
* at the bottom. PCMWAVEFORMAT adds 'WORD wBitsPerSample' and
* WAVEFORMATEX adds 'WORD cbSize' and basically makes itself
* an openended structure.
*/
static
void
parse_waveformatex
(
AVIOContext
*
pb
,
AVCodecContext
*
c
)
{
ff_asf_guid
subformat
;
c
->
bits_per_coded_sample
=
avio_rl16
(
pb
);
c
->
channel_layout
=
avio_rl32
(
pb
);
/* dwChannelMask */
ff_get_guid
(
pb
,
&
subformat
);
if
(
!
memcmp
(
subformat
+
4
,
(
const
uint8_t
[]){
FF_MEDIASUBTYPE_BASE_GUID
},
12
))
{
c
->
codec_tag
=
AV_RL32
(
subformat
);
c
->
codec_id
=
ff_wav_codec_get_id
(
c
->
codec_tag
,
c
->
bits_per_coded_sample
);
}
else
{
c
->
codec_id
=
ff_codec_guid_get_id
(
ff_codec_wav_guids
,
subformat
);
if
(
!
c
->
codec_id
)
av_log
(
c
,
AV_LOG_WARNING
,
"unknown subformat:"
FF_PRI_GUID
"
\n
"
,
FF_ARG_GUID
(
subformat
));
}
}
int
ff_get_wav_header
(
AVIOContext
*
pb
,
AVCodecContext
*
codec
,
int
size
)
{
int
id
;
id
=
avio_rl16
(
pb
);
codec
->
codec_type
=
AVMEDIA_TYPE_AUDIO
;
codec
->
channels
=
avio_rl16
(
pb
);
codec
->
sample_rate
=
avio_rl32
(
pb
);
codec
->
bit_rate
=
avio_rl32
(
pb
)
*
8
;
codec
->
block_align
=
avio_rl16
(
pb
);
if
(
size
==
14
)
{
/* We're dealing with plain vanilla WAVEFORMAT */
codec
->
bits_per_coded_sample
=
8
;
}
else
codec
->
bits_per_coded_sample
=
avio_rl16
(
pb
);
if
(
id
==
0xFFFE
)
{
codec
->
codec_tag
=
0
;
}
else
{
codec
->
codec_tag
=
id
;
codec
->
codec_id
=
ff_wav_codec_get_id
(
id
,
codec
->
bits_per_coded_sample
);
}
if
(
size
>=
18
)
{
/* We're obviously dealing with WAVEFORMATEX */
int
cbSize
=
avio_rl16
(
pb
);
/* cbSize */
size
-=
18
;
cbSize
=
FFMIN
(
size
,
cbSize
);
if
(
cbSize
>=
22
&&
id
==
0xfffe
)
{
/* WAVEFORMATEXTENSIBLE */
parse_waveformatex
(
pb
,
codec
);
cbSize
-=
22
;
size
-=
22
;
}
codec
->
extradata_size
=
cbSize
;
if
(
cbSize
>
0
)
{
av_free
(
codec
->
extradata
);
codec
->
extradata
=
av_mallocz
(
codec
->
extradata_size
+
FF_INPUT_BUFFER_PADDING_SIZE
);
if
(
!
codec
->
extradata
)
return
AVERROR
(
ENOMEM
);
avio_read
(
pb
,
codec
->
extradata
,
codec
->
extradata_size
);
size
-=
cbSize
;
}
/* It is possible for the chunk to contain garbage at the end */
if
(
size
>
0
)
avio_skip
(
pb
,
size
);
}
if
(
codec
->
codec_id
==
AV_CODEC_ID_AAC_LATM
)
{
/* Channels and sample_rate values are those prior to applying SBR
* and/or PS. */
codec
->
channels
=
0
;
codec
->
sample_rate
=
0
;
}
/* override bits_per_coded_sample for G.726 */
if
(
codec
->
codec_id
==
AV_CODEC_ID_ADPCM_G726
)
codec
->
bits_per_coded_sample
=
codec
->
bit_rate
/
codec
->
sample_rate
;
return
0
;
}
enum
AVCodecID
ff_wav_codec_get_id
(
unsigned
int
tag
,
int
bps
)
{
enum
AVCodecID
id
;
id
=
ff_codec_get_id
(
ff_codec_wav_tags
,
tag
);
if
(
id
<=
0
)
return
id
;
if
(
id
==
AV_CODEC_ID_PCM_S16LE
)
id
=
ff_get_pcm_codec_id
(
bps
,
0
,
0
,
~
1
);
else
if
(
id
==
AV_CODEC_ID_PCM_F32LE
)
id
=
ff_get_pcm_codec_id
(
bps
,
1
,
0
,
0
);
if
(
id
==
AV_CODEC_ID_ADPCM_IMA_WAV
&&
bps
==
8
)
id
=
AV_CODEC_ID_PCM_ZORK
;
return
id
;
}
int
ff_get_bmp_header
(
AVIOContext
*
pb
,
AVStream
*
st
)
{
int
tag1
;
avio_rl32
(
pb
);
/* size */
st
->
codec
->
width
=
avio_rl32
(
pb
);
st
->
codec
->
height
=
(
int32_t
)
avio_rl32
(
pb
);
avio_rl16
(
pb
);
/* planes */
st
->
codec
->
bits_per_coded_sample
=
avio_rl16
(
pb
);
/* depth */
tag1
=
avio_rl32
(
pb
);
avio_rl32
(
pb
);
/* ImageSize */
avio_rl32
(
pb
);
/* XPelsPerMeter */
avio_rl32
(
pb
);
/* YPelsPerMeter */
avio_rl32
(
pb
);
/* ClrUsed */
avio_rl32
(
pb
);
/* ClrImportant */
return
tag1
;
}
int
ff_read_riff_info
(
AVFormatContext
*
s
,
int64_t
size
)
{
int64_t
start
,
end
,
cur
;
AVIOContext
*
pb
=
s
->
pb
;
start
=
avio_tell
(
pb
);
end
=
start
+
size
;
while
((
cur
=
avio_tell
(
pb
))
>=
0
&&
cur
<=
end
-
8
/* = tag + size */
)
{
uint32_t
chunk_code
;
int64_t
chunk_size
;
char
key
[
5
]
=
{
0
};
char
*
value
;
chunk_code
=
avio_rl32
(
pb
);
chunk_size
=
avio_rl32
(
pb
);
if
(
chunk_size
>
end
||
end
-
chunk_size
<
cur
||
chunk_size
==
UINT_MAX
)
{
av_log
(
s
,
AV_LOG_WARNING
,
"too big INFO subchunk
\n
"
);
break
;
}
chunk_size
+=
(
chunk_size
&
1
);
if
(
!
chunk_code
)
{
if
(
chunk_size
)
avio_skip
(
pb
,
chunk_size
);
else
if
(
pb
->
eof_reached
)
{
av_log
(
s
,
AV_LOG_WARNING
,
"truncated file
\n
"
);
return
AVERROR_EOF
;
}
continue
;
}
value
=
av_malloc
(
chunk_size
+
1
);
if
(
!
value
)
{
av_log
(
s
,
AV_LOG_ERROR
,
"out of memory, unable to read INFO tag
\n
"
);
return
AVERROR
(
ENOMEM
);
}
AV_WL32
(
key
,
chunk_code
);
if
(
avio_read
(
pb
,
value
,
chunk_size
)
!=
chunk_size
)
{
av_free
(
value
);
av_log
(
s
,
AV_LOG_WARNING
,
"premature end of file while reading INFO tag
\n
"
);
break
;
}
value
[
chunk_size
]
=
0
;
av_dict_set
(
&
s
->
metadata
,
key
,
value
,
AV_DICT_DONT_STRDUP_VAL
);
}
return
0
;
}
#endif
/* CONFIG_DEMUXERS */
libavformat/riffdec.c
0 → 100644
View file @
255d9c57
/*
* RIFF demuxing functions and data
* Copyright (c) 2000 Fabrice Bellard
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/dict.h"
#include "libavutil/error.h"
#include "libavutil/log.h"
#include "libavutil/mathematics.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/bytestream.h"
#include "avformat.h"
#include "avio_internal.h"
#include "riff.h"
const
AVCodecGuid
ff_codec_wav_guids
[]
=
{
{
AV_CODEC_ID_AC3
,
{
0x2C
,
0x80
,
0x6D
,
0xE0
,
0x46
,
0xDB
,
0xCF
,
0x11
,
0xB4
,
0xD1
,
0x00
,
0x80
,
0x5F
,
0x6C
,
0xBB
,
0xEA
}
},
{
AV_CODEC_ID_ATRAC3P
,
{
0xBF
,
0xAA
,
0x23
,
0xE9
,
0x58
,
0xCB
,
0x71
,
0x44
,
0xA1
,
0x19
,
0xFF
,
0xFA
,
0x01
,
0xE4
,
0xCE
,
0x62
}
},
{
AV_CODEC_ID_EAC3
,
{
0xAF
,
0x87
,
0xFB
,
0xA7
,
0x02
,
0x2D
,
0xFB
,
0x42
,
0xA4
,
0xD4
,
0x05
,
0xCD
,
0x93
,
0x84
,
0x3B
,
0xDD
}
},
{
AV_CODEC_ID_MP2
,
{
0x2B
,
0x80
,
0x6D
,
0xE0
,
0x46
,
0xDB
,
0xCF
,
0x11
,
0xB4
,
0xD1
,
0x00
,
0x80
,
0x5F
,
0x6C
,
0xBB
,
0xEA
}
},
{
AV_CODEC_ID_NONE
}
};
enum
AVCodecID
ff_codec_guid_get_id
(
const
AVCodecGuid
*
guids
,
ff_asf_guid
guid
)
{
int
i
;
for
(
i
=
0
;
guids
[
i
].
id
!=
AV_CODEC_ID_NONE
;
i
++
)
if
(
!
ff_guidcmp
(
guids
[
i
].
guid
,
guid
))
return
guids
[
i
].
id
;
return
AV_CODEC_ID_NONE
;
}
/* We could be given one of the three possible structures here:
* WAVEFORMAT, PCMWAVEFORMAT or WAVEFORMATEX. Each structure
* is an expansion of the previous one with the fields added
* at the bottom. PCMWAVEFORMAT adds 'WORD wBitsPerSample' and
* WAVEFORMATEX adds 'WORD cbSize' and basically makes itself
* an openended structure.
*/
static
void
parse_waveformatex
(
AVIOContext
*
pb
,
AVCodecContext
*
c
)
{
ff_asf_guid
subformat
;
c
->
bits_per_coded_sample
=
avio_rl16
(
pb
);
c
->
channel_layout
=
avio_rl32
(
pb
);
/* dwChannelMask */
ff_get_guid
(
pb
,
&
subformat
);
if
(
!
memcmp
(
subformat
+
4
,
(
const
uint8_t
[]){
FF_MEDIASUBTYPE_BASE_GUID
},
12
))
{
c
->
codec_tag
=
AV_RL32
(
subformat
);
c
->
codec_id
=
ff_wav_codec_get_id
(
c
->
codec_tag
,
c
->
bits_per_coded_sample
);
}
else
{
c
->
codec_id
=
ff_codec_guid_get_id
(
ff_codec_wav_guids
,
subformat
);
if
(
!
c
->
codec_id
)
av_log
(
c
,
AV_LOG_WARNING
,
"unknown subformat:"
FF_PRI_GUID
"
\n
"
,
FF_ARG_GUID
(
subformat
));
}
}
int
ff_get_wav_header
(
AVIOContext
*
pb
,
AVCodecContext
*
codec
,
int
size
)
{
int
id
;
id
=
avio_rl16
(
pb
);
codec
->
codec_type
=
AVMEDIA_TYPE_AUDIO
;
codec
->
channels
=
avio_rl16
(
pb
);
codec
->
sample_rate
=
avio_rl32
(
pb
);
codec
->
bit_rate
=
avio_rl32
(
pb
)
*
8
;
codec
->
block_align
=
avio_rl16
(
pb
);
if
(
size
==
14
)
{
/* We're dealing with plain vanilla WAVEFORMAT */
codec
->
bits_per_coded_sample
=
8
;
}
else
codec
->
bits_per_coded_sample
=
avio_rl16
(
pb
);
if
(
id
==
0xFFFE
)
{
codec
->
codec_tag
=
0
;
}
else
{
codec
->
codec_tag
=
id
;
codec
->
codec_id
=
ff_wav_codec_get_id
(
id
,
codec
->
bits_per_coded_sample
);
}
if
(
size
>=
18
)
{
/* We're obviously dealing with WAVEFORMATEX */
int
cbSize
=
avio_rl16
(
pb
);
/* cbSize */
size
-=
18
;
cbSize
=
FFMIN
(
size
,
cbSize
);
if
(
cbSize
>=
22
&&
id
==
0xfffe
)
{
/* WAVEFORMATEXTENSIBLE */
parse_waveformatex
(
pb
,
codec
);
cbSize
-=
22
;
size
-=
22
;
}
codec
->
extradata_size
=
cbSize
;
if
(
cbSize
>
0
)
{
av_free
(
codec
->
extradata
);
codec
->
extradata
=
av_mallocz
(
codec
->
extradata_size
+
FF_INPUT_BUFFER_PADDING_SIZE
);
if
(
!
codec
->
extradata
)
return
AVERROR
(
ENOMEM
);
avio_read
(
pb
,
codec
->
extradata
,
codec
->
extradata_size
);
size
-=
cbSize
;
}
/* It is possible for the chunk to contain garbage at the end */
if
(
size
>
0
)
avio_skip
(
pb
,
size
);
}
if
(
codec
->
codec_id
==
AV_CODEC_ID_AAC_LATM
)
{
/* Channels and sample_rate values are those prior to applying SBR
* and/or PS. */
codec
->
channels
=
0
;
codec
->
sample_rate
=
0
;
}
/* override bits_per_coded_sample for G.726 */
if
(
codec
->
codec_id
==
AV_CODEC_ID_ADPCM_G726
)
codec
->
bits_per_coded_sample
=
codec
->
bit_rate
/
codec
->
sample_rate
;
return
0
;
}
enum
AVCodecID
ff_wav_codec_get_id
(
unsigned
int
tag
,
int
bps
)
{
enum
AVCodecID
id
;
id
=
ff_codec_get_id
(
ff_codec_wav_tags
,
tag
);
if
(
id
<=
0
)
return
id
;
if
(
id
==
AV_CODEC_ID_PCM_S16LE
)
id
=
ff_get_pcm_codec_id
(
bps
,
0
,
0
,
~
1
);
else
if
(
id
==
AV_CODEC_ID_PCM_F32LE
)
id
=
ff_get_pcm_codec_id
(
bps
,
1
,
0
,
0
);
if
(
id
==
AV_CODEC_ID_ADPCM_IMA_WAV
&&
bps
==
8
)
id
=
AV_CODEC_ID_PCM_ZORK
;
return
id
;
}
int
ff_get_bmp_header
(
AVIOContext
*
pb
,
AVStream
*
st
)
{
int
tag1
;
avio_rl32
(
pb
);
/* size */
st
->
codec
->
width
=
avio_rl32
(
pb
);
st
->
codec
->
height
=
(
int32_t
)
avio_rl32
(
pb
);
avio_rl16
(
pb
);
/* planes */
st
->
codec
->
bits_per_coded_sample
=
avio_rl16
(
pb
);
/* depth */
tag1
=
avio_rl32
(
pb
);
avio_rl32
(
pb
);
/* ImageSize */
avio_rl32
(
pb
);
/* XPelsPerMeter */
avio_rl32
(
pb
);
/* YPelsPerMeter */
avio_rl32
(
pb
);
/* ClrUsed */
avio_rl32
(
pb
);
/* ClrImportant */
return
tag1
;
}
int
ff_read_riff_info
(
AVFormatContext
*
s
,
int64_t
size
)
{
int64_t
start
,
end
,
cur
;
AVIOContext
*
pb
=
s
->
pb
;
start
=
avio_tell
(
pb
);
end
=
start
+
size
;
while
((
cur
=
avio_tell
(
pb
))
>=
0
&&
cur
<=
end
-
8
/* = tag + size */
)
{
uint32_t
chunk_code
;
int64_t
chunk_size
;
char
key
[
5
]
=
{
0
};
char
*
value
;
chunk_code
=
avio_rl32
(
pb
);
chunk_size
=
avio_rl32
(
pb
);
if
(
chunk_size
>
end
||
end
-
chunk_size
<
cur
||
chunk_size
==
UINT_MAX
)
{
av_log
(
s
,
AV_LOG_WARNING
,
"too big INFO subchunk
\n
"
);
break
;
}
chunk_size
+=
(
chunk_size
&
1
);
if
(
!
chunk_code
)
{
if
(
chunk_size
)
avio_skip
(
pb
,
chunk_size
);
else
if
(
pb
->
eof_reached
)
{
av_log
(
s
,
AV_LOG_WARNING
,
"truncated file
\n
"
);
return
AVERROR_EOF
;
}
continue
;
}
value
=
av_malloc
(
chunk_size
+
1
);
if
(
!
value
)
{
av_log
(
s
,
AV_LOG_ERROR
,
"out of memory, unable to read INFO tag
\n
"
);
return
AVERROR
(
ENOMEM
);
}
AV_WL32
(
key
,
chunk_code
);
if
(
avio_read
(
pb
,
value
,
chunk_size
)
!=
chunk_size
)
{
av_free
(
value
);
av_log
(
s
,
AV_LOG_WARNING
,
"premature end of file while reading INFO tag
\n
"
);
break
;
}
value
[
chunk_size
]
=
0
;
av_dict_set
(
&
s
->
metadata
,
key
,
value
,
AV_DICT_DONT_STRDUP_VAL
);
}
return
0
;
}
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