ffmpeg | branch: master | Nick Renieris <[email protected]> | Thu Aug 29 16:10:47 2019 +0300| [c510ed2ee8b3d5ec373d9d8a7e5a25c132ca620e] | committer: Paul B Mahol
lavc/tiff: Force DNG pixel data endianness on an edge case This fixes "X7 RAW" and "X7 CinemaDNG" samples here: - https://www.dji.com/gr/zenmuse-x7/info#downloads Signed-off-by: Nick Renieris <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c510ed2ee8b3d5ec373d9d8a7e5a25c132ca620e --- libavcodec/tiff.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c index b4015178f2..8cbcbdf7a5 100644 --- a/libavcodec/tiff.c +++ b/libavcodec/tiff.c @@ -1038,6 +1038,18 @@ static int init_image(TiffContext *s, ThreadFrame *frame) AV_RL32(s->pattern)); return AVERROR_PATCHWELCOME; } + /* Force endianness as mentioned in 'DNG Specification: Chapter 3: BitsPerSample' + NOTE: The spec actually specifies big-endian, not sure why we need little-endian, but + such images don't work otherwise. Examples are images produced by Zenmuse X7. */ + if ((s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG) + && (s->bpp != 8 && s->bpp != 16 && s->bpp != 32)) { + switch (s->avctx->pix_fmt) { + case AV_PIX_FMT_BAYER_RGGB16BE: s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB16LE; break; + case AV_PIX_FMT_BAYER_BGGR16BE: s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR16LE; break; + case AV_PIX_FMT_BAYER_GBRG16BE: s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG16LE; break; + case AV_PIX_FMT_BAYER_GRBG16BE: s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG16LE; break; + } + } break; case 10161: switch (AV_RL32(s->pattern)) { _______________________________________________ ffmpeg-cvslog mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
