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siff: Return more meaningful error values

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This commit is contained in:
Diego Biurrun 2015-02-03 09:53:00 +01:00 committed by Vittorio Giovara
parent 75439bb31b
commit 27b99d929f
1 changed files with 18 additions and 17 deletions
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35
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');
@ -134,8 +134,8 @@ static int siff_parse_vbv1(AVFormatContext *s, SIFFContext *c, AVIOContext *pb)
c->has_video = 1;
c->has_audio = !!c->rate;
c->curstrm = -1;
if (c->has_audio && create_audio_stream(s, c) < 0)
return -1;
if (c->has_audio)
return create_audio_stream(s, c);
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