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Code Issues Releases Activity

avcodec/utvideodec: add support for UQRG and UQRA formats

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2016-06-11 23:44:06 +02:00
parent 4c9d1c6f9a
commit 84efdabc94
2 changed files with 46 additions and 0 deletions
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44
libavcodec/utvideodec.c
View File

@ -153,6 +153,7 @@ static int decode_plane10(UtvideoContext *c, int plane_no,
pix = fsym;
if (use_pred) {
prev += pix;
prev &= 0x3FF;
pix = prev;
}
dest[i] = pix;
@ -349,6 +350,28 @@ static void restore_rgb_planes(uint8_t *src, int step, int stride, int width,
}
}
static void restore_rgb_planes10(AVFrame *frame, int width, int height)
{
uint16_t *src_r = (uint16_t *)frame->data[2];
uint16_t *src_g = (uint16_t *)frame->data[0];
uint16_t *src_b = (uint16_t *)frame->data[1];
int r, g, b;
int i, j;
for (j = 0; j < height; j++) {
for (i = 0; i < width; i++) {
r = src_r[i];
g = src_g[i];
b = src_b[i];
src_r[i] = (r + g - 0x200) & 0x3FF;
src_b[i] = (b + g - 0x200) & 0x3FF;
}
src_r += frame->linesize[2] / 2;
src_g += frame->linesize[0] / 2;
src_b += frame->linesize[1] / 2;
}
}
static void restore_median(uint8_t *src, int step, int stride,
int width, int height, int slices, int rmode)
{
@ -599,6 +622,19 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
restore_rgb_planes(frame.f->data[0], c->planes, frame.f->linesize[0],
avctx->width, avctx->height);
break;
case AV_PIX_FMT_GBRAP10:
case AV_PIX_FMT_GBRP10:
for (i = 0; i < c->planes; i++) {
ret = decode_plane10(c, i, (uint16_t *)frame.f->data[i], 1,
frame.f->linesize[i] / 2, avctx->width,
avctx->height, plane_start[i],
plane_start[i + 1] - 1024,
c->frame_pred == PRED_LEFT);
if (ret)
return ret;
}
restore_rgb_planes10(frame.f, avctx->width, avctx->height);
break;
case AV_PIX_FMT_YUV420P:
for (i = 0; i < 3; i++) {
ret = decode_plane(c, i, frame.f->data[i], 1, frame.f->linesize[i],
@ -725,6 +761,14 @@ static av_cold int decode_init(AVCodecContext *avctx)
c->planes = 3;
avctx->pix_fmt = AV_PIX_FMT_YUV422P10;
break;
case MKTAG('U', 'Q', 'R', 'G'):
c->planes = 3;
avctx->pix_fmt = AV_PIX_FMT_GBRP10;
break;
case MKTAG('U', 'Q', 'R', 'A'):
c->planes = 4;
avctx->pix_fmt = AV_PIX_FMT_GBRAP10;
break;
case MKTAG('U', 'L', 'H', '0'):
c->planes = 3;
avctx->pix_fmt = AV_PIX_FMT_YUV420P;

2
libavformat/riff.c
View File

@ -391,6 +391,8 @@ const AVCodecTag ff_codec_bmp_tags[] = {
{ AV_CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'H', '0') },
{ AV_CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'H', '2') },
{ AV_CODEC_ID_UTVIDEO, MKTAG('U', 'Q', 'Y', '2') },
{ AV_CODEC_ID_UTVIDEO, MKTAG('U', 'Q', 'R', 'A') },
{ AV_CODEC_ID_UTVIDEO, MKTAG('U', 'Q', 'R', 'G') },
{ AV_CODEC_ID_VBLE, MKTAG('V', 'B', 'L', 'E') },
{ AV_CODEC_ID_ESCAPE130, MKTAG('E', '1', '3', '0') },
{ AV_CODEC_ID_DXTORY, MKTAG('x', 't', 'o', 'r') },