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Code Issues Releases Activity

avcodec/dfa: don't check for the bitstream version on every copied line

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And use av_image_copy_plane() while at it to simplify things for
version != 0x100.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2022-03-17 23:07:39 -03:00
parent 2b2380c098
commit 5021b2ba06
1 changed files with 7 additions and 7 deletions
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14
libavcodec/dfa.c
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@ -386,8 +386,8 @@ static int dfa_decode_frame(AVCodecContext *avctx,
buf = s->frame_buf;
dst = frame->data[0];
for (i = 0; i < avctx->height; i++) {
if(version == 0x100) {
if (version == 0x100) {
for (i = 0; i < avctx->height; i++) {
int j;
const uint8_t *buf1 = buf + (i&3)*(avctx->width/4) + (i/4)*avctx->width;
int stride = (avctx->height/4)*avctx->width;
@ -401,12 +401,12 @@ static int dfa_decode_frame(AVCodecContext *avctx,
for(; j < avctx->width; j++) {
dst[j] = buf1[(j/4) + (j&3)*stride];
}
} else {
memcpy(dst, buf, avctx->width);
buf += avctx->width;
dst += frame->linesize[0];
}
dst += frame->linesize[0];
}
} else
av_image_copy_plane(dst, frame->linesize[0], buf, avctx->width,
avctx->width, avctx->height);
memcpy(frame->data[1], s->pal, sizeof(s->pal));
*got_frame = 1;