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avcodec/dxtory: Support dxtory-2.0.127.avi

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-09-25 23:42:03 +02:00
parent c0f9df30dd
commit a43bcaafe2
1 changed files with 4 additions and 6 deletions
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10
libavcodec/dxtory.c
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@ -424,7 +424,7 @@ static int dxtory_decode_v2_410(AVCodecContext *avctx, AVFrame *pic,
return AVERROR_INVALIDDATA;
}
if (!nslices || avctx->height % nslices) {
if (!nslices) {
avpriv_request_sample(avctx, "%d slices for %dx%d", nslices,
avctx->width, avctx->height);
return AVERROR_PATCHWELCOME;
@ -445,9 +445,9 @@ static int dxtory_decode_v2_410(AVCodecContext *avctx, AVFrame *pic,
V = pic->data[2];
cur_y = 0;
next_y = ref_slice_height;
for (slice = 0; slice < nslices; slice++) {
slice_size = bytestream2_get_le32(&gb);
next_y = ((slice + 1) * avctx->height) / nslices;
slice_height = (next_y & ~3) - (cur_y & ~3);
if (slice_size > src_size - off) {
av_log(avctx, AV_LOG_ERROR,
@ -475,7 +475,6 @@ static int dxtory_decode_v2_410(AVCodecContext *avctx, AVFrame *pic,
V += pic->linesize[2] * (slice_height >> 2);
off += slice_size;
cur_y = next_y;
next_y += ref_slice_height;
}
return 0;
@ -528,7 +527,7 @@ static int dxtory_decode_v2_420(AVCodecContext *avctx, AVFrame *pic,
return AVERROR_INVALIDDATA;
}
if (!nslices || avctx->height % nslices) {
if (!nslices) {
avpriv_request_sample(avctx, "%d slices for %dx%d", nslices,
avctx->width, avctx->height);
return AVERROR_PATCHWELCOME;
@ -549,9 +548,9 @@ static int dxtory_decode_v2_420(AVCodecContext *avctx, AVFrame *pic,
V = pic->data[2];
cur_y = 0;
next_y = ref_slice_height;
for (slice = 0; slice < nslices; slice++) {
slice_size = bytestream2_get_le32(&gb);
next_y = ((slice + 1) * avctx->height) / nslices;
slice_height = (next_y & ~1) - (cur_y & ~1);
if (slice_size > src_size - off) {
av_log(avctx, AV_LOG_ERROR,
@ -579,7 +578,6 @@ static int dxtory_decode_v2_420(AVCodecContext *avctx, AVFrame *pic,
V += pic->linesize[2] * (slice_height >> 1);
off += slice_size;
cur_y = next_y;
next_y += ref_slice_height;
}
return 0;