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fail if extradata cannot be allocated

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Originally committed as revision 12206 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2008-02-25 12:42:32 +00:00
parent 9c7fd997f7
commit b014dd7695
1 changed files with 14 additions and 23 deletions
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37
libavformat/mov.c
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@ -292,14 +292,14 @@ static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
if (tag == MP4DecSpecificDescrTag) {
dprintf(c->fc, "Specific MPEG4 header len=%d\n", len);
st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
if (st->codec->extradata) {
if (!st->codec->extradata)
return AVERROR(ENOMEM);
get_buffer(pb, st->codec->extradata, len);
st->codec->extradata_size = len;
/* from mplayer */
if ((*st->codec->extradata >> 3) == 29) {
st->codec->codec_id = CODEC_ID_MP3ON4;
}
}
}
}
return 0;
@ -420,16 +420,13 @@ static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
// currently SVQ3 decoder expect full STSD header - so let's fake it
// this should be fixed and just SMI header should be passed
av_free(st->codec->extradata);
st->codec->extradata_size = 0x5a + atom.size;
st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
if (st->codec->extradata) {
st->codec->extradata = av_mallocz(atom.size + 0x5a + FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
return AVERROR(ENOMEM);
st->codec->extradata_size = 0x5a + atom.size;
memcpy(st->codec->extradata, "SVQ3", 4); // fake
get_buffer(pb, st->codec->extradata + 0x5a, atom.size);
dprintf(c->fc, "Reading SMI %"PRId64" %s\n", atom.size, st->codec->extradata + 0x5a);
} else
url_fskip(pb, atom.size);
return 0;
}
@ -483,13 +480,11 @@ static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
if (st->codec->codec_id == CODEC_ID_QDM2) {
// pass all frma atom to codec, needed at least for QDM2
av_free(st->codec->extradata);
st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
return AVERROR(ENOMEM);
st->codec->extradata_size = atom.size;
st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
if (st->codec->extradata) {
get_buffer(pb, st->codec->extradata, atom.size);
} else
url_fskip(pb, atom.size);
get_buffer(pb, st->codec->extradata, atom.size);
} else if (atom.size > 8) { /* to read frma, esds atoms */
if (mov_read_default(c, pb, atom) < 0)
return -1;
@ -510,15 +505,11 @@ static int mov_read_glbl(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
return -1;
av_free(st->codec->extradata);
st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
return AVERROR(ENOMEM);
st->codec->extradata_size = atom.size;
st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
if (st->codec->extradata) {
get_buffer(pb, st->codec->extradata, atom.size);
} else
url_fskip(pb, atom.size);
get_buffer(pb, st->codec->extradata, atom.size);
return 0;
}