[FFmpeg-devel] [PATCH]Support encoding YUVA420P with libopenjpeg
Carl Eugen Hoyos
cehoyos at ag.or.at
Fri Dec 2 02:06:13 CET 2011
Hi!
I tested the patch by forcing the pix_fmt in the decoder.
Please comment, Carl Eugen
-------------- next part --------------
diff --git a/libavcodec/libopenjpegenc.c b/libavcodec/libopenjpegenc.c
index 5215836..6b37fb0 100644
--- a/libavcodec/libopenjpegenc.c
+++ b/libavcodec/libopenjpegenc.c
@@ -93,6 +93,10 @@ static opj_image_t *mj2_create_image(AVCodecContext *avctx, opj_cparameters_t *p
color_space = CLRSPC_SYCC;
numcomps = 3;
break;
+ case PIX_FMT_YUVA420P:
+ color_space = CLRSPC_SYCC;
+ numcomps = 4;
+ break;
case PIX_FMT_YUV420P9:
case PIX_FMT_YUV422P9:
case PIX_FMT_YUV444P9:
@@ -210,7 +214,7 @@ static int libopenjpeg_copy_yuv8(AVCodecContext *avctx, AVFrame *frame, opj_imag
int y;
int width;
int height;
- const int numcomps = 3;
+ const int numcomps = avctx->pix_fmt == PIX_FMT_YUVA420P ? 4 : 3;
for (compno = 0; compno < numcomps; ++compno) {
if (image->comps[compno].w > frame->linesize[compno]) {
@@ -292,6 +296,7 @@ static int libopenjpeg_encode_frame(AVCodecContext *avctx, uint8_t *buf, int buf
case PIX_FMT_YUV422P:
case PIX_FMT_YUV440P:
case PIX_FMT_YUV444P:
+ case PIX_FMT_YUVA420P:
cpyresult = libopenjpeg_copy_yuv8(avctx, frame, image);
break;
case PIX_FMT_YUV420P9:
@@ -363,7 +368,7 @@ AVCodec ff_libopenjpeg_encoder = {
.decode = NULL,
.capabilities = 0,
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_RGB24,PIX_FMT_RGBA,PIX_FMT_GRAY8,
- PIX_FMT_YUV420P,PIX_FMT_YUV422P,
+ PIX_FMT_YUV420P,PIX_FMT_YUV422P,PIX_FMT_YUVA420P,
PIX_FMT_YUV440P,PIX_FMT_YUV444P,
PIX_FMT_YUV420P9,PIX_FMT_YUV422P9,PIX_FMT_YUV444P9,
PIX_FMT_YUV420P10,PIX_FMT_YUV422P10,PIX_FMT_YUV444P10,
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