diff options
Diffstat (limited to 'libswscale')
| -rw-r--r-- | libswscale/utils.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/libswscale/utils.c b/libswscale/utils.c index 8637195e16..b61a4aeb87 100644 --- a/libswscale/utils.c +++ b/libswscale/utils.c @@ -999,6 +999,20 @@ av_cold int sws_init_context(SwsContext *c, SwsFilter *srcFilter, c->flags = flags; } } + + if (flags & SWS_ERROR_DIFFUSION && !(flags & SWS_FULL_CHR_H_INT)) { + if(dstFormat == AV_PIX_FMT_BGR4_BYTE || + dstFormat == AV_PIX_FMT_RGB4_BYTE || + dstFormat == AV_PIX_FMT_BGR8 || + dstFormat == AV_PIX_FMT_RGB8) { + av_log(c, AV_LOG_DEBUG, + "Error diffusion dither is only supported in full chroma interpolation for destination format '%s'\n", + av_get_pix_fmt_name(dstFormat)); + flags |= SWS_FULL_CHR_H_INT; + c->flags = flags; + } + } + /* reuse chroma for 2 pixels RGB/BGR unless user wants full * chroma interpolation */ if (flags & SWS_FULL_CHR_H_INT && |