ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinha...@outlook.com> | Tue Mar 15 07:51:29 2022 +0100| [db57a5370bd37105d389a45b04bf4970802407ec] | committer: Andreas Rheinhardt
avcodec/pngenc: Avoid potentially truncating integers So use 64bits for max_packet_size instead of size_t which might be 32 bits; this is consistent with ff_alloc_packet(). Also remove a redundant size check (ff_alloc_packet() already checks for that). Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=db57a5370bd37105d389a45b04bf4970802407ec --- libavcodec/pngenc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/libavcodec/pngenc.c b/libavcodec/pngenc.c index 3ebcc1e571..7d23271563 100644 --- a/libavcodec/pngenc.c +++ b/libavcodec/pngenc.c @@ -528,7 +528,7 @@ static int encode_png(AVCodecContext *avctx, AVPacket *pkt, PNGEncContext *s = avctx->priv_data; int ret; int enc_row_size; - size_t max_packet_size; + uint64_t max_packet_size; enc_row_size = deflateBound(&s->zstream, (avctx->width * s->bits_per_pixel + 7) >> 3); max_packet_size = @@ -537,8 +537,6 @@ static int encode_png(AVCodecContext *avctx, AVPacket *pkt, enc_row_size + 12 * (((int64_t)enc_row_size + IOBUF_SIZE - 1) / IOBUF_SIZE) // IDAT * ceil(enc_row_size / IOBUF_SIZE) ); - if (max_packet_size > INT_MAX) - return AVERROR(ENOMEM); ret = ff_alloc_packet(avctx, pkt, max_packet_size); if (ret < 0) return ret; @@ -845,7 +843,7 @@ static int encode_apng(AVCodecContext *avctx, AVPacket *pkt, PNGEncContext *s = avctx->priv_data; int ret; int enc_row_size; - size_t max_packet_size; + uint64_t max_packet_size; APNGFctlChunk fctl_chunk = {0}; if (pict && s->color_type == PNG_COLOR_TYPE_PALETTE) { _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
