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| author | Nick Renieris <velocityra@gmail.com> | 2019-08-29 16:10:47 +0300 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2019-09-02 09:26:52 +0200 |
| commit | c510ed2ee8b3d5ec373d9d8a7e5a25c132ca620e (patch) | |
| tree | 5f442eb4d02c62d03c98a2716854483953ad2db5 | |
| parent | 33b6752a708f9afc2a99a86ff28a42803e52bc28 (diff) | |
| download | ffmpeg-c510ed2ee8b3d5ec373d9d8a7e5a25c132ca620e.tar.gz | |
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 <velocityra@gmail.com>
| -rw-r--r-- | libavcodec/tiff.c | 12 |
1 files changed, 12 insertions, 0 deletions
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)) { |