Hi!
Attached patch makes the output of ffmpeg -i lena.pnm -strict -2 out.jp2
compatible with Kakadu, fixes ticket #4689.
Please comment, Carl Eugen
diff --git a/libavcodec/j2kenc.c b/libavcodec/j2kenc.c
index dcdf411..82a75aa 100644
--- a/libavcodec/j2kenc.c
+++ b/libavcodec/j2kenc.c
@@ -962,6 +962,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
bytestream_put_buffer(&s->buf, "ftyp", 4);
bytestream_put_buffer(&s->buf, "jp2\040\040", 4);
bytestream_put_be32(&s->buf, 0);
+ bytestream_put_buffer(&s->buf, "jp2\040", 4);
update_size(chunkstart, s->buf);
jp2hstart = s->buf;
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