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Code Issues Releases Activity

Replace av_malloc() and memset(0) by av_mallocz()

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This commit is contained in:
Diego Biurrun 2014-06-20 00:04:36 +02:00
parent f83896abda
commit 73953df71a
3 changed files with 4 additions and 9 deletions
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4
libavformat/matroskadec.c
View File

@ -746,11 +746,9 @@ static int ebml_read_ascii(AVIOContext *pb, int size, char **str)
static int ebml_read_binary(AVIOContext *pb, int length, EbmlBin *bin)
{
av_free(bin->data);
if (!(bin->data = av_malloc(length + FF_INPUT_BUFFER_PADDING_SIZE)))
if (!(bin->data = av_mallocz(length + FF_INPUT_BUFFER_PADDING_SIZE)))
return AVERROR(ENOMEM);
memset(bin->data + length, 0, FF_INPUT_BUFFER_PADDING_SIZE);
bin->size = length;
bin->pos = avio_tell(pb);
if (avio_read(pb, bin->data, length) != length) {

3
libavformat/rmdec.c
View File

@ -86,11 +86,10 @@ static int rm_read_extradata(AVIOContext *pb, AVCodecContext *avctx, unsigned si
{
if (size >= 1<<24)
return -1;
avctx->extradata = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
avctx->extradata = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!avctx->extradata)
return AVERROR(ENOMEM);
avctx->extradata_size = avio_read(pb, avctx->extradata, size);
memset(avctx->extradata + avctx->extradata_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
if (avctx->extradata_size != size)
return AVERROR(EIO);
return 0;

4
libavformat/utils.c
View File

@ -2381,14 +2381,12 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
int i = st->parser->parser->split(st->codec, pkt->data, pkt->size);
if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
st->codec->extradata_size = i;
st->codec->extradata = av_malloc(st->codec->extradata_size +
st->codec->extradata = av_mallocz(st->codec->extradata_size +
FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
return AVERROR(ENOMEM);
memcpy(st->codec->extradata, pkt->data,
st->codec->extradata_size);
memset(st->codec->extradata + i, 0,
FF_INPUT_BUFFER_PADDING_SIZE);
}
}