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lavc: improve AVCodecContext.delay doxy

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Anton Khirnov 2014-04-11 17:47:51 +02:00
parent a4ed995cab
commit b19a5e5198
1 changed files with 11 additions and 6 deletions
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17
libavcodec/avcodec.h
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@ -1208,12 +1208,17 @@ typedef struct AVCodecContext {
* encoded input.
*
* Audio:
* For encoding, this is the number of "priming" samples added to the
* beginning of the stream. The decoded output will be delayed by this
* many samples relative to the input to the encoder. Note that this
* field is purely informational and does not directly affect the pts
* output by the encoder, which should always be based on the actual
* presentation time, including any delay.
* For encoding, this is the number of "priming" samples added by the
* encoder to the beginning of the stream. The decoded output will be
* delayed by this many samples relative to the input to the encoder (or
* more, if the decoder adds its own padding).
* The timestamps on the output packets are adjusted by the encoder so
* that they always refer to the first sample of the data actually
* contained in the packet, including any added padding.
* E.g. if the timebase is 1/samplerate and the timestamp of the first
* input sample is 0, the timestamp of the first output packet will be
* -delay.
*
* For decoding, this is the number of samples the decoder needs to
* output before the decoder's output is valid. When seeking, you should
* start decoding this many samples prior to your desired seek point.