On Fri, 10 Apr 2020 12:26:50 +0000
"Zane van Iperen" <z...@zanevaniperen.com> wrote:
> Signed-off-by: Zane van Iperen <z...@zanevaniperen.com>
> ---
> Changelog | 1 +
> doc/general.texi | 2 +-
> libavcodec/Makefile | 1 +
> libavcodec/adpcmenc.c | 30 ++++++++++++++++++++++++++++++
> libavcodec/allcodecs.c | 1 +
> libavcodec/utils.c | 1 +
> libavcodec/version.h | 2 +-
> 7 files changed, 36 insertions(+), 2 deletions(-)
>
> diff --git a/Changelog b/Changelog
> index b0c016185e..f84420c6eb 100644
>
> + if (avctx->trellis && avctx->codec->id ==
> AV_CODEC_ID_ADPCM_IMA_SSI) {
> + /*
> + * Trellis sort-of works, but has some DC offset problems.
> + * Disable it until I can figure out why.
> + */
> + av_log(avctx, AV_LOG_ERROR, "trellis not supported\n");
> + return AVERROR(EINVAL);
> + }
> +
Ping.
Also, could someone please clarify something for me?
When encoding, there's no inherit differences between trellis and
non-trellis other then a potentially more-accurate set of nibbles?
And the decoder is none the wiser and chews on them both the same way?
If I'm right, then this looks to be a decoder issue...
Zane
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