On 29/11/2017 23:11, Mark Thompson wrote:
These may be read by the bitstream reader, so they should include the necessary padding for overreads. --- libavcodec/cbs_h2645.c | 10 ++++++++-- libavcodec/cbs_mpeg2.c | 5 ++++- 2 files changed, 12 insertions(+), 3 deletions(-)diff --git a/libavcodec/cbs_h2645.c b/libavcodec/cbs_h2645.c index 2006aaa3f..e3b5bf618 100644 --- a/libavcodec/cbs_h2645.c +++ b/libavcodec/cbs_h2645.c @@ -781,13 +781,16 @@ static int cbs_h264_read_nal_unit(CodedBitstreamContext *ctx, }slice->data_size = len - pos / 8;- slice->data = av_malloc(slice->data_size); + slice->data = av_malloc(slice->data_size + + AV_INPUT_BUFFER_PADDING_SIZE); if (!slice->data) { av_free(slice); return AVERROR(ENOMEM); } memcpy(slice->data, unit->data + pos / 8, slice->data_size); + memset(slice->data + slice->data_size, 0, + AV_INPUT_BUFFER_PADDING_SIZE); slice->data_bit_start = pos % 8;unit->content = slice;@@ -943,13 +946,16 @@ static int cbs_h265_read_nal_unit(CodedBitstreamContext *ctx, }slice->data_size = len - pos / 8;- slice->data = av_malloc(slice->data_size); + slice->data = av_malloc(slice->data_size + + AV_INPUT_BUFFER_PADDING_SIZE); if (!slice->data) { av_free(slice); return AVERROR(ENOMEM); } memcpy(slice->data, unit->data + pos / 8, slice->data_size); + memset(slice->data + slice->data_size, 0, + AV_INPUT_BUFFER_PADDING_SIZE); slice->data_bit_start = pos % 8;unit->content = slice;diff --git a/libavcodec/cbs_mpeg2.c b/libavcodec/cbs_mpeg2.c index 3a41e5452..cd8e1b66d 100644 --- a/libavcodec/cbs_mpeg2.c +++ b/libavcodec/cbs_mpeg2.c @@ -181,7 +181,8 @@ static int cbs_mpeg2_read_unit(CodedBitstreamContext *ctx, len = unit->data_size;slice->data_size = len - pos / 8;- slice->data = av_malloc(slice->data_size); + slice->data = av_malloc(slice->data_size + + AV_INPUT_BUFFER_PADDING_SIZE); if (!slice->data) { av_free(slice); return AVERROR(ENOMEM); @@ -189,6 +190,8 @@ static int cbs_mpeg2_read_unit(CodedBitstreamContext *ctx,memcpy(slice->data,unit->data + pos / 8, slice->data_size); + memset(slice->data + slice->data_size, 0, + AV_INPUT_BUFFER_PADDING_SIZE); slice->data_bit_start = pos % 8;unit->content = slice;
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