01.08.2015 у 02:01 Ganesh Ajjanagadde напісаў:
On Fri, Jul 31, 2015 at 6:52 PM, Ihar A. Tumashyk <itumas...@gmail.com> wrote:
All DSD codes have 1 bit per sample.
https://en.wikipedia.org/wiki/Direct_Stream_Digital
Signed-off-by: Ihar A. Tumashyk <itumas...@gmail.com>
---
libavcodec/utils.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 5dbd0cf..52bfe01 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -3311,6 +3311,11 @@ void avcodec_flush_buffers(AVCodecContext *avctx)
int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
{
switch (codec_id) {
+ case AV_CODEC_ID_DSD_LSBF:
+ case AV_CODEC_ID_DSD_MSBF:
+ case AV_CODEC_ID_DSD_LSBF_PLANAR:
+ case AV_CODEC_ID_DSD_MSBF_PLANAR:
+ return 1;
case AV_CODEC_ID_8SVX_EXP:
case AV_CODEC_ID_8SVX_FIB:
case AV_CODEC_ID_ADPCM_CT:
@@ -3321,10 +3326,6 @@ int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
case AV_CODEC_ID_ADPCM_G722:
case AV_CODEC_ID_ADPCM_YAMAHA:
return 4;
- case AV_CODEC_ID_DSD_LSBF:
- case AV_CODEC_ID_DSD_MSBF:
- case AV_CODEC_ID_DSD_LSBF_PLANAR:
- case AV_CODEC_ID_DSD_MSBF_PLANAR:
case AV_CODEC_ID_PCM_ALAW:
case AV_CODEC_ID_PCM_MULAW:
case AV_CODEC_ID_PCM_S8:
--
2.1.4
LGTM, but I am not the maintainer for it.
Out of curiosity, did you run into this via code inspection or trying
to fix something?
Yes, I'm working with DSF files and found that ffprobe returns wrong
sample rates for these files. This is
because it divided by 8 while reading but (as compensation maybe to have
correct bitrate) bps is 8.
Refer my next patch [PATCH 2/2] libavformat/dsfdec: Error
dsf_read_header fixed.
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