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Make OPUS_SET_GAIN survive decode reset.

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This is the less-surprising behavior and will hopefully
result in fewer corner case bugs (e.g. losing gain
after seeking). This commit also updates the documentation.
This commit is contained in:
Gregory Maxwell 2012-07-11 02:33:55 -04:00
parent 9881484dbd
commit 03105f5b70
2 changed files with 3 additions and 2 deletions
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3
include/opus_defines.h
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@ -450,7 +450,8 @@ extern "C" {
/** Configures decoder gain adjustment. /** Configures decoder gain adjustment.
* Scales the decoded output by a factor specified in Q8 dB units. * Scales the decoded output by a factor specified in Q8 dB units.
* This has a maximum range of -32768 to 32767 inclusive, and returns * This has a maximum range of -32768 to 32767 inclusive, and returns
* OPUS_BAD_ARG otherwise. * OPUS_BAD_ARG otherwise. The default is zero indicating no adjustment.
* This setting survives decoder reset.
* *
* gain = pow(10, x/(20.0*256)) * gain = pow(10, x/(20.0*256))
* *

2
src/opus_decoder.c
View file

@ -53,6 +53,7 @@ struct OpusDecoder {
int channels; int channels;
opus_int32 Fs; /** Sampling rate (at the API level) */ opus_int32 Fs; /** Sampling rate (at the API level) */
silk_DecControlStruct DecControl; silk_DecControlStruct DecControl;
int decode_gain;
/* Everything beyond this point gets cleared on a reset */ /* Everything beyond this point gets cleared on a reset */
#define OPUS_DECODER_RESET_START stream_channels #define OPUS_DECODER_RESET_START stream_channels
@ -63,7 +64,6 @@ struct OpusDecoder {
int prev_mode; int prev_mode;
int frame_size; int frame_size;
int prev_redundancy; int prev_redundancy;
int decode_gain;
opus_uint32 rangeFinal; opus_uint32 rangeFinal;
}; };