return PIX_FMT_RGB24;
}
+static int is_yuva420(opj_image_t *image)
+{
+ return image->numcomps == 4 &&
+ image->comps[0].dx == 1 && image->comps[0].dy == 1 &&
+ image->comps[1].dx == 2 && image->comps[1].dy == 2 &&
+ image->comps[2].dx == 2 && image->comps[2].dy == 2 &&
+ image->comps[3].dx == 1 && image->comps[3].dy == 1;
+}
+
static inline int libopenjpeg_ispacked(enum PixelFormat pix_fmt) {
int i, component_plane;
component_plane = av_pix_fmt_descriptors[pix_fmt].comp[0].plane;
break;
case 3: avctx->pix_fmt = check_image_attributes(avctx, image);
break;
- case 4: avctx->pix_fmt = PIX_FMT_RGBA;
+ case 4: avctx->pix_fmt = is_yuva420(image) ? PIX_FMT_YUVA420P : PIX_FMT_RGBA;
break;
default: av_log(avctx, AV_LOG_ERROR, "%d components unsupported.\n", image->numcomps);
goto done;