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avcodec/avcodec: Document signed/unsignedness of sample formats in relation to bits_per_raw_sample

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Michael Niedermayer 2016-04-15 00:42:22 +02:00
parent bcf936eaea
commit f07923253a
1 changed files with 2 additions and 2 deletions
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libavcodec/avcodec.h
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@ -3850,8 +3850,8 @@ typedef struct AVCodecParameters {
* sample format has more bits, the least significant bits are additional * sample format has more bits, the least significant bits are additional
* padding bits, which are always 0. Use right shifts to reduce the sample * padding bits, which are always 0. Use right shifts to reduce the sample
* to its actual size. For example, audio formats with 24 bit samples will * to its actual size. For example, audio formats with 24 bit samples will
* have bits_per_raw_sample set to 24, and format set to AV_SAMPLEFMT_S32. * have bits_per_raw_sample set to 24, and format set to AV_SAMPLE_FMT_S32.
* To get the original sample use "(uint32_t)sample >> 8"." * To get the original sample use "(int32_t)sample >> 8"."
* *
* For ADPCM this might be 12 or 16 or similar * For ADPCM this might be 12 or 16 or similar
* Can be 0 * Can be 0