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Code Issues Releases Activity

avcodec/libopenjpegen: XYZ 12 bit support for libopenjpeg encoder

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clook 2013-07-14 04:14:56 +00:00 committed by Michael Niedermayer
parent b9b1a2c3e4
commit 4443213d2e
1 changed files with 37 additions and 0 deletions
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37
libavcodec/libopenjpegenc.c
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@ -106,6 +106,7 @@ static opj_image_t *mj2_create_image(AVCodecContext *avctx, opj_cparameters_t *p
case AV_PIX_FMT_GBRP12:
case AV_PIX_FMT_GBRP14:
case AV_PIX_FMT_GBRP16:
case AV_PIX_FMT_XYZ12:
color_space = CLRSPC_SRGB;
break;
case AV_PIX_FMT_YUV410P:
@ -280,6 +281,38 @@ static int libopenjpeg_copy_packed8(AVCodecContext *avctx, const AVFrame *frame,
return 1;
}
// for XYZ 12 bit
static int libopenjpeg_copy_packed12(AVCodecContext *avctx, const AVFrame *frame, opj_image_t *image)
{
int compno;
int x;
int y;
int image_index;
int frame_index;
const int numcomps = image->numcomps;
uint16_t *frame_ptr = (uint16_t*)frame->data[0];
for (compno = 0; compno < numcomps; ++compno) {
if (image->comps[compno].w > frame->linesize[0] / numcomps) {
av_log(avctx, AV_LOG_ERROR, "Error: frame's linesize is too small for the image\n");
return 0;
}
}
for (compno = 0; compno < numcomps; ++compno) {
for (y = 0; y < avctx->height; ++y) {
image_index = y * avctx->width;
frame_index = y * (frame->linesize[0] / 2) + compno;
for (x = 0; x < avctx->width; ++x) {
image->comps[compno].data[image_index++] = frame_ptr[frame_index] >> 4;
frame_index += numcomps;
}
}
}
return 1;
}
static int libopenjpeg_copy_packed16(AVCodecContext *avctx, const AVFrame *frame, opj_image_t *image)
{
int compno;
@ -401,6 +434,9 @@ static int libopenjpeg_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
case AV_PIX_FMT_GRAY8A:
cpyresult = libopenjpeg_copy_packed8(avctx, frame, image);
break;
case AV_PIX_FMT_XYZ12:
cpyresult = libopenjpeg_copy_packed12(avctx, frame, image);
break;
case AV_PIX_FMT_RGB48:
case AV_PIX_FMT_RGBA64:
cpyresult = libopenjpeg_copy_packed16(avctx, frame, image);
@ -574,6 +610,7 @@ AVCodec ff_libopenjpeg_encoder = {
AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
AV_PIX_FMT_XYZ12,
AV_PIX_FMT_NONE
},
.long_name = NULL_IF_CONFIG_SMALL("OpenJPEG JPEG 2000"),