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authorAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2023-10-05 01:01:35 +0200
committerAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2023-10-10 00:21:20 +0200
commit3937a21f219165425146b06fbf9b908bc1ae6d27 (patch)
tree5767b6d47ba4c1380727ab991e2ebc512c1f7834 /libavcodec/mpegvideo_enc.c
parent0524b4ec3ea54428b7cd53683f3dd6afa90c64c8 (diff)
avcodec/mpegvideo_enc: Don't overallocate arrays
Only entries 0..max_b_frames are ever used. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Diffstat (limited to 'libavcodec/mpegvideo_enc.c')
-rw-r--r--libavcodec/mpegvideo_enc.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c
index b32197b1b4..d30cbab29d 100644
--- a/libavcodec/mpegvideo_enc.c
+++ b/libavcodec/mpegvideo_enc.c
@@ -819,8 +819,8 @@ av_cold int ff_mpv_encode_init(AVCodecContext *avctx)
!FF_ALLOCZ_TYPED_ARRAY(s->q_intra_matrix16, 32) ||
!FF_ALLOCZ_TYPED_ARRAY(s->q_chroma_intra_matrix16, 32) ||
!FF_ALLOCZ_TYPED_ARRAY(s->q_inter_matrix16, 32) ||
- !FF_ALLOCZ_TYPED_ARRAY(s->input_picture, MAX_PICTURE_COUNT) ||
- !FF_ALLOCZ_TYPED_ARRAY(s->reordered_input_picture, MAX_PICTURE_COUNT) ||
+ !FF_ALLOCZ_TYPED_ARRAY(s->input_picture, MAX_B_FRAMES + 1) ||
+ !FF_ALLOCZ_TYPED_ARRAY(s->reordered_input_picture, MAX_B_FRAMES + 1) ||
!(s->new_picture = av_frame_alloc()))
return AVERROR(ENOMEM);
@@ -1232,7 +1232,7 @@ static int load_input_picture(MpegEncContext *s, const AVFrame *pic_arg)
}
/* shift buffer entries */
- for (i = flush_offset; i < MAX_PICTURE_COUNT /*s->encoding_delay + 1*/; i++)
+ for (int i = flush_offset; i <= MAX_B_FRAMES; i++)
s->input_picture[i - flush_offset] = s->input_picture[i];
s->input_picture[encoding_delay] = pic;
@@ -1451,9 +1451,9 @@ static int select_input_picture(MpegEncContext *s)
{
int i, ret;
- for (i = 1; i < MAX_PICTURE_COUNT; i++)
+ for (int i = 1; i <= MAX_B_FRAMES; i++)
s->reordered_input_picture[i - 1] = s->reordered_input_picture[i];
- s->reordered_input_picture[MAX_PICTURE_COUNT - 1] = NULL;
+ s->reordered_input_picture[MAX_B_FRAMES] = NULL;
/* set next picture type & ordering */
if (!s->reordered_input_picture[0] && s->input_picture[0]) {