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wavdec: add ignore length option to ignore incorrect lengthes

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-12-10 05:42:18 +01:00
parent 85cd1eb12f
commit 02acfb1c01
1 changed files with 17 additions and 0 deletions
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17
libavformat/wav.c
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@ -52,6 +52,7 @@ typedef struct {
int smv_last_stream;
int smv_eof;
int audio_eof;
int ignore_length;
} WAVContext;
#if CONFIG_WAV_MUXER
@ -618,6 +619,8 @@ smv_out:
st = s->streams[0];
left = wav->data_end - avio_tell(s->pb);
if (wav->ignore_length)
left= INT_MAX;
if (left <= 0){
if (CONFIG_W64_DEMUXER && wav->w64)
left = find_guid(s->pb, guid_data) - 24;
@ -677,6 +680,19 @@ static int wav_read_seek(AVFormatContext *s,
return pcm_read_seek(s, stream_index, timestamp, flags);
}
#define OFFSET(x) offsetof(WAVContext, x)
#define DEC AV_OPT_FLAG_DECODING_PARAM
static const AVOption demux_options[] = {
{ "ignore_length", "Ignore length", OFFSET(ignore_length), AV_OPT_TYPE_INT, { 0 }, 0, 1, DEC },
{ NULL },
};
static const AVClass wav_demuxer_class = {
.class_name = "WAV demuxer",
.item_name = av_default_item_name,
.option = demux_options,
.version = LIBAVUTIL_VERSION_INT,
};
AVInputFormat ff_wav_demuxer = {
.name = "wav",
.long_name = NULL_IF_CONFIG_SMALL("WAV format"),
@ -687,6 +703,7 @@ AVInputFormat ff_wav_demuxer = {
.read_seek = wav_read_seek,
.flags= AVFMT_GENERIC_INDEX,
.codec_tag= (const AVCodecTag* const []){ff_codec_wav_tags, 0},
.priv_class = &wav_demuxer_class,
};
#endif /* CONFIG_WAV_DEMUXER */