[FFmpeg-devel] [PATCH 07/11] avcodec/j2kenc: Replace RGB24 special case by generic test

Michael Niedermayer michael at niedermayer.cc
Thu Mar 30 21:01:02 EEST 2023


This fixes RGB48 with libavcodec as decoder

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libavcodec/j2kenc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavcodec/j2kenc.c b/libavcodec/j2kenc.c
index d837b8b949e..8d9c1fdb1c0 100644
--- a/libavcodec/j2kenc.c
+++ b/libavcodec/j2kenc.c
@@ -1530,6 +1530,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
     int tileno, ret;
     Jpeg2000EncoderContext *s = avctx->priv_data;
     uint8_t *chunkstart, *jp2cstart, *jp2hstart;
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
 
     if ((ret = ff_alloc_packet(avctx, pkt, avctx->width*avctx->height*9 + AV_INPUT_BUFFER_MIN_SIZE)) < 0)
         return ret;
@@ -1586,7 +1587,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
         bytestream_put_byte(&s->buf, 1);
         bytestream_put_byte(&s->buf, 0);
         bytestream_put_byte(&s->buf, 0);
-        if (avctx->pix_fmt == AV_PIX_FMT_RGB24 || avctx->pix_fmt == AV_PIX_FMT_PAL8) {
+        if ((desc->flags & AV_PIX_FMT_FLAG_RGB) || avctx->pix_fmt == AV_PIX_FMT_PAL8) {
             bytestream_put_be32(&s->buf, 16);
         } else if (s->ncomponents == 1) {
             bytestream_put_be32(&s->buf, 17);
-- 
2.17.1



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