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Code Issues Releases Activity

4xm: fold last_picture lazy allocation in decode_p_frame

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This commit is contained in:
Luca Barbato 2013-06-05 20:30:48 +02:00
parent 42d73f7f6b
commit 50ec1db62d
1 changed files with 11 additions and 9 deletions
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20
libavcodec/4xm.c
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@ -394,6 +394,17 @@ static int decode_p_frame(FourXContext *f, AVFrame *frame,
uint16_t *src;
unsigned int bitstream_size, bytestream_size, wordstream_size, extra,
bytestream_offset, wordstream_offset;
int ret;
if (!f->last_picture->data[0]) {
if ((ret = ff_get_buffer(f->avctx, f->last_picture,
AV_GET_BUFFER_FLAG_REF)) < 0) {
av_log(f->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
memset(f->last_picture->data[0], 0,
f->avctx->height * FFABS(f->last_picture->linesize[0]));
}
src = (uint16_t *)f->last_picture->data[0];
@ -842,15 +853,6 @@ static int decode_frame(AVCodecContext *avctx, void *data,
if ((ret = decode_i_frame(f, picture, buf, frame_size)) < 0)
return ret;
} else if (frame_4cc == AV_RL32("pfrm") || frame_4cc == AV_RL32("pfr2")) {
if (!f->last_picture->data[0]) {
if ((ret = ff_get_buffer(avctx, f->last_picture,
AV_GET_BUFFER_FLAG_REF)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
memset(f->last_picture->data[0], 0, avctx->height * FFABS(f->last_picture->linesize[0]));
}
picture->pict_type = AV_PICTURE_TYPE_P;
if ((ret = decode_p_frame(f, picture, buf, frame_size)) < 0)
return ret;