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avcodec/wmalosslessdec: support 24bit lossless

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Not checked if its actually lossless
Fixes Ticket1847

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-11-22 20:49:40 +01:00
parent 4327088da3
commit ce6141259b
2 changed files with 3 additions and 3 deletions
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1
Changelog
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@ -16,6 +16,7 @@ version <next>:
- creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
- WebP muxer with animated WebP support
- zygoaudio decoding support
- 24bit wmalossless decoding support
version 2.4:

5
libavcodec/wmalosslessdec.c
View File

@ -200,8 +200,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
avctx->sample_fmt = AV_SAMPLE_FMT_S16P;
else if (s->bits_per_sample == 24) {
avctx->sample_fmt = AV_SAMPLE_FMT_S32P;
avpriv_report_missing_feature(avctx, "Bit-depth higher than 16");
return AVERROR_PATCHWELCOME;
avctx->bits_per_raw_sample = 24;
} else {
av_log(avctx, AV_LOG_ERROR, "Unknown bit-depth: %"PRIu8"\n",
s->bits_per_sample);
@ -997,7 +996,7 @@ static int decode_subframe(WmallDecodeCtx *s)
if (s->bits_per_sample == 16) {
*s->samples_16[c]++ = (int16_t) s->channel_residues[c][j] << padding_zeroes;
} else {
*s->samples_32[c]++ = s->channel_residues[c][j] << padding_zeroes;
*s->samples_32[c]++ = s->channel_residues[c][j] << (padding_zeroes + 8);
}
}
}