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authorNicolas George <nicolas.george@normalesup.org>2012-02-29 14:39:50 +0100
committerNicolas George <nicolas.george@normalesup.org>2012-02-29 17:00:26 +0100
commit33b9fe562a307629d8db61edcf729c4cb8f78413 (patch)
tree12fa88a07df66e9bda12b57ec61fe157128b384f
parent52ae41a87472c040aa79edf231a9bff2f3376869 (diff)
downloadffmpeg-33b9fe562a307629d8db61edcf729c4cb8f78413.tar.gz
encode_video2: shrink packet after encoding.
With the encode2 API, encoders allocate huge packets to be sure they have enough room (a typical case is mpeg4, which allocs ~10M for 1280x768 yuv420p) but only actually use a very small part of the buffer.
-rw-r--r--libavcodec/utils.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 63f7fae88a..99e36f84a8 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -1198,6 +1198,7 @@ int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
{
int ret;
int user_packet = !!avpkt->data;
+ void *new_data;
*got_packet_ptr = 0;
@@ -1218,6 +1219,12 @@ int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
avpkt->size = 0;
else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY))
avpkt->pts = avpkt->dts = frame->pts;
+ if (avpkt->data) {
+ new_data = av_realloc(avpkt->data,
+ avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
+ if (new_data)
+ avpkt->data = new_data;
+ }
avctx->frame_number++;
}