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decoder/flac: validate the sample rate when scanning the tag

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Don't calculate the song duration when the sample rate is 0 (division
by zero crash).
This commit is contained in:
Max Kellermann
2011-07-03 14:57:56 +02:00
parent 8d1c7ca206
commit 6aa6a9c272
3 changed files with 6 additions and 1 deletions
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3
src/decoder/flac_metadata.c
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@@ -224,7 +224,8 @@ flac_tag_apply_metadata(struct tag *tag, const char *track,
break;
case FLAC__METADATA_TYPE_STREAMINFO:
tag->time = flac_duration(&block->data.stream_info);
if (block->data.stream_info.sample_rate > 0)
tag->time = flac_duration(&block->data.stream_info);
break;
default:

3
src/decoder/flac_metadata.h
View File

@@ -20,6 +20,7 @@
#ifndef MPD_FLAC_METADATA_H
#define MPD_FLAC_METADATA_H
#include <assert.h>
#include <stdbool.h>
#include <FLAC/metadata.h>
@@ -29,6 +30,8 @@ struct replay_gain_info;
static inline unsigned
flac_duration(const FLAC__StreamMetadata_StreamInfo *stream_info)
{
assert(stream_info->sample_rate > 0);
return (stream_info->total_samples + stream_info->sample_rate - 1) /
stream_info->sample_rate;
}