ffmpeg | branch: master | Gautam Ramakrishnan <gautamr...@gmail.com> | Thu Apr 23 00:22:39 2020 +0530| [6bd4a261689b2f464fba5d94f9c185c333ac947a] | committer: Michael Niedermayer
libavcodec/jpeg2000dec.c: Support for CRG marker This patch adds support to skip the CRG marker. The CRG marker, is an informational marker. Allows samples such as p0_03.j2k to be decoded. Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6bd4a261689b2f464fba5d94f9c185c333ac947a --- libavcodec/jpeg2000dec.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c index af6dcee228..5a7d9e7882 100644 --- a/libavcodec/jpeg2000dec.c +++ b/libavcodec/jpeg2000dec.c @@ -798,6 +798,15 @@ static int get_sot(Jpeg2000DecoderContext *s, int n) return 0; } +static int read_crg(Jpeg2000DecoderContext *s, int n) +{ + if (s->ncomponents*4 != n - 2) { + av_log(s->avctx, AV_LOG_ERROR, "Invalid CRG marker.\n"); + return AVERROR_INVALIDDATA; + } + bytestream2_skip(&s->g, n - 2); + return 0; +} /* Tile-part lengths: see ISO 15444-1:2002, section A.7.1 * Used to know the number of tile parts and lengths. * There may be multiple TLMs in the header. @@ -2061,6 +2070,9 @@ static int jpeg2000_read_main_headers(Jpeg2000DecoderContext *s) // the comment is ignored bytestream2_skip(&s->g, len - 2); break; + case JPEG2000_CRG: + ret = read_crg(s, len); + break; case JPEG2000_TLM: // Tile-part lengths ret = get_tlm(s, len); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
