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siff: return meaningful error codes

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2012-12-06 18:00:37 +00:00
parent 7510a9a466
commit 29c3ebf56e
1 changed files with 17 additions and 16 deletions
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33
libavformat/siff.c
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@ -76,7 +76,7 @@ static int create_audio_stream(AVFormatContext *s, SIFFContext *c)
AVStream *ast;
ast = avformat_new_stream(s, NULL);
if (!ast)
return -1;
return AVERROR(ENOMEM);
ast->codec->codec_type = AVMEDIA_TYPE_AUDIO;
ast->codec->codec_id = AV_CODEC_ID_PCM_U8;
ast->codec->channels = 1;
@ -95,15 +95,15 @@ static int siff_parse_vbv1(AVFormatContext *s, SIFFContext *c, AVIOContext *pb)
if (avio_rl32(pb) != TAG_VBHD){
av_log(s, AV_LOG_ERROR, "Header chunk is missing\n");
return -1;
return AVERROR_INVALIDDATA;
}
if(avio_rb32(pb) != 32){
av_log(s, AV_LOG_ERROR, "Header chunk size is incorrect\n");
return -1;
return AVERROR_INVALIDDATA;
}
if(avio_rl16(pb) != 1){
av_log(s, AV_LOG_ERROR, "Incorrect header version\n");
return -1;
return AVERROR_INVALIDDATA;
}
width = avio_rl16(pb);
height = avio_rl16(pb);
@ -111,7 +111,7 @@ static int siff_parse_vbv1(AVFormatContext *s, SIFFContext *c, AVIOContext *pb)
c->frames = avio_rl16(pb);
if(!c->frames){
av_log(s, AV_LOG_ERROR, "File contains no frames ???\n");
return -1;
return AVERROR_INVALIDDATA;
}
c->bits = avio_rl16(pb);
c->rate = avio_rl16(pb);
@ -121,7 +121,7 @@ static int siff_parse_vbv1(AVFormatContext *s, SIFFContext *c, AVIOContext *pb)
st = avformat_new_stream(s, NULL);
if (!st)
return -1;
return AVERROR(ENOMEM);
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = AV_CODEC_ID_VB;
st->codec->codec_tag = MKTAG('V', 'B', 'V', '1');
@ -135,7 +135,7 @@ static int siff_parse_vbv1(AVFormatContext *s, SIFFContext *c, AVIOContext *pb)
c->has_audio = !!c->rate;
c->curstrm = -1;
if (c->has_audio && create_audio_stream(s, c) < 0)
return -1;
return AVERROR(ENOMEM);
return 0;
}
@ -143,11 +143,11 @@ static int siff_parse_soun(AVFormatContext *s, SIFFContext *c, AVIOContext *pb)
{
if (avio_rl32(pb) != TAG_SHDR){
av_log(s, AV_LOG_ERROR, "Header chunk is missing\n");
return -1;
return AVERROR_INVALIDDATA;
}
if(avio_rb32(pb) != 8){
av_log(s, AV_LOG_ERROR, "Header chunk size is incorrect\n");
return -1;
return AVERROR_INVALIDDATA;
}
avio_skip(pb, 4); //unknown value
c->rate = avio_rl16(pb);
@ -161,24 +161,25 @@ static int siff_read_header(AVFormatContext *s)
AVIOContext *pb = s->pb;
SIFFContext *c = s->priv_data;
uint32_t tag;
int ret;
if (avio_rl32(pb) != TAG_SIFF)
return -1;
return AVERROR_INVALIDDATA;
avio_skip(pb, 4); //ignore size
tag = avio_rl32(pb);
if (tag != TAG_VBV1 && tag != TAG_SOUN){
av_log(s, AV_LOG_ERROR, "Not a VBV file\n");
return -1;
return AVERROR_INVALIDDATA;
}
if (tag == TAG_VBV1 && siff_parse_vbv1(s, c, pb) < 0)
return -1;
if (tag == TAG_SOUN && siff_parse_soun(s, c, pb) < 0)
return -1;
if (tag == TAG_VBV1 && (ret = siff_parse_vbv1(s, c, pb)) < 0)
return ret;
if (tag == TAG_SOUN && (ret = siff_parse_soun(s, c, pb)) < 0)
return ret;
if (avio_rl32(pb) != MKTAG('B', 'O', 'D', 'Y')){
av_log(s, AV_LOG_ERROR, "'BODY' chunk is missing\n");
return -1;
return AVERROR_INVALIDDATA;
}
avio_skip(pb, 4); //ignore size