On Tue, Aug 14, 2018 at 12:58 AM Gagandeep Singh <deepgagan231...@gmail.com>
wrote:
> ---
> libavcodec/cfhd.c | 25 ++++++++++++++++++++++++-
> 1 file changed, 24 insertions(+), 1 deletion(-)
>
> diff --git a/libavcodec/cfhd.c b/libavcodec/cfhd.c
> index 3906d7a86d..2c538f0bbd 100644
> --- a/libavcodec/cfhd.c
> +++ b/libavcodec/cfhd.c
> @@ -114,7 +114,30 @@ static inline int dequant_and_decompand(int level,
> int quantisation, int codeboo
> {
> if (lossless)
> return level;
> - if (codebook == 0 || codebook == 1) {
> + if (codebook == 0) {
> + if (level >= 40 && level < 264) {
> + if (level >= 54) {
> + level -= 54;
> + level <<= 2;
> + level += 54;
> + }
> + level -= 40;
> + level <<= 2;
> + level += 40;
> + } else if (level <= -40) {
> + level = -level;
> + if (level >= 54) {
> + level -= 54;
> + level <<= 2;
> + level += 54;
> + }
> + level -= 40;
> + level <<= 2;
> + level += 40;
> + level = -level;
> + }
> + return level * quantisation;
> + } else if (codebook == 1) {
> int64_t abslevel = abs(level);
> if (level < 264)
> return (abslevel + ((768 * abslevel * abslevel * abslevel) /
> (255 * 255 * 255))) *
> --
> 2.17.1
>
Updated patches are in new thread. Sorry for inconvenience.
Gagandeep Singh
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