[FFmpeg-devel] [PATCH 2/3] avcodec/utils: Favor allocating a new packet in ff_alloc_packet2()

[Michael Niedermayer]

From: Michael Niedermayer <michael at niedermayer.cc>

This removes min_size usage by always using the same allocation
strategy (simply allocating new packet)

This causes huffyuv encoding of matrixbench to drop in speed from
16.321 to 16.708sec

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libavcodec/utils.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 5dbd0cf..8f3bffd 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -1789,7 +1789,7 @@ int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64
         return AVERROR(EINVAL);
     }
 
-    if (avctx && 2*min_size < size) { // FIXME The factor needs to be finetuned
+    if (avctx && avpkt->data && avpkt->size < size) {
         av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
         if (!avpkt->data || avpkt->size < size) {
             av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
-- 
1.7.9.5