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avcodec/snow: ensure the buffers have allocated edges 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-06-26 20:44:21 +02:00
parent 932be89c26
commit e059ac59ef
2 changed files with 21 additions and 2 deletions
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11
libavcodec/snow.c
View File

@ -661,9 +661,18 @@ int ff_snow_frame_start(SnowContext *s){
return -1;
}
}
s->current_picture->width = s->avctx->width + 2 * EDGE_WIDTH;
s->current_picture->height = s->avctx->height + 2 * EDGE_WIDTH;
if ((ret = ff_get_buffer(s->avctx, s->current_picture, AV_GET_BUFFER_FLAG_REF)) < 0)
return ret;
for (i = 0; s->current_picture->data[i]; i++) {
int offset = (EDGE_WIDTH >> (i ? s->chroma_v_shift : 0)) *
s->current_picture->linesize[i] +
(EDGE_WIDTH >> (i ? s->chroma_h_shift : 0));
s->current_picture->data[i] += offset;
}
s->current_picture->width = s->avctx->width;
s->current_picture->height = s->avctx->height;
s->current_picture->key_frame= s->keyframe;

12
libavcodec/snowenc.c
View File

@ -37,6 +37,7 @@ static av_cold int encode_init(AVCodecContext *avctx)
{
SnowContext *s = avctx->priv_data;
int plane_index, ret;
int i;
if(avctx->prediction_method == DWT_97
&& (avctx->flags & CODEC_FLAG_QSCALE)
@ -124,11 +125,20 @@ static av_cold int encode_init(AVCodecContext *avctx)
s->input_picture = av_frame_alloc();
if (!s->input_picture)
return AVERROR(ENOMEM);
s->input_picture->width = s->avctx->width + 2 * EDGE_WIDTH;
s->input_picture->height = s->avctx->height + 2 * EDGE_WIDTH;
if ((ret = ff_get_buffer(s->avctx, s->input_picture, AV_GET_BUFFER_FLAG_REF)) < 0)
return ret;
for (i = 0; s->input_picture->data[i]; i++) {
int offset = (EDGE_WIDTH >> (i ? s->chroma_v_shift : 0)) *
s->input_picture->linesize[i] +
(EDGE_WIDTH >> (i ? s->chroma_h_shift : 0));
s->input_picture->data[i] += offset;
}
s->input_picture->width = s->avctx->width;
s->input_picture->height = s->avctx->height;
if(s->avctx->me_method == ME_ITER){
int i;
int size= s->b_width * s->b_height << 2*s->block_max_depth;
for(i=0; i<s->max_ref_frames; i++){
s->ref_mvs[i]= av_mallocz_array(size, sizeof(int16_t[2]));