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clean extra frames

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This commit is contained in:
Christian R. Helmrich
2021-04-30 11:00:00 +02:00
parent 94a4ed9adf
commit 9a1c4ee39d
3 changed files with 11 additions and 9 deletions
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16
src/lib/bitStreamWriter.cpp
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@ -128,12 +128,12 @@ static unsigned getLowRatePreRollAU (uint8_t* const byteBuffer, const CoreCoderD
if (useSbr) // UsacSbrData()
{
au.write (1, 7);// SbrInfo(), sbrUseDfltHeader
if (et) au.write (1, 1); // sbr_data(), couple
au.write (0, 7);
au.write (0, et ? 31 : 17);
#if ENABLE_INTERTES
if (et) au.write (0, 1); // fix _coupling = 0
au.write (0, 8 << et);
au.write (0, 16 << et);
# if ENABLE_INTERTES
au.write (0, et + 1);
#endif
# endif
}
if (au.heldBitCount > 0) au.stream.push_back (au.heldBitChunk);
@ -814,8 +814,8 @@ unsigned BitStreamWriter::createAudioConfig (const char samplingFrequencyIndex,
#endif
const uint8_t sbrRatioShiftValue, unsigned char* const audioConfig)
{
const uint8_t fli = (sbrRatioShiftValue == 0 ? 1 /*no SBR*/ : __min (2, sbrRatioShiftValue) + 2);
const int8_t usfi = __max (0, samplingFrequencyIndex - 3 * sbrRatioShiftValue); // TODO: non-standard sampling rates
const uint8_t fli = (sbrRatioShiftValue == 0 ? 1 /*no SBR*/ : __min (2, sbrRatioShiftValue & 3) + 2);
const int8_t usfi = __max (0, samplingFrequencyIndex - 3 * (sbrRatioShiftValue & 3)); // TODO: nonstandard rates
unsigned bitCount = 37, auLen;
#ifndef NO_PREROLL_DATA
unsigned ucOffset = (samplingFrequencyIndex < AAC_NUM_SAMPLE_RATES ? 2 : 5);
@ -881,7 +881,7 @@ unsigned BitStreamWriter::createAudioConfig (const char samplingFrequencyIndex,
m_auBitStream.write (0, 3); // fix harmonicSBR, bs_interTes, bs_pvc = 0
#endif
bitCount += 13; // incl. SbrDfltHeader following hereafter
m_auBitStream.write (15, 4); // 11025 @ 44.1, 11625 @ 48, 15000 @ 64 kHz
m_auBitStream.write (15 - (sbrRatioShiftValue / 4), 4); // bs_start_freq
m_auBitStream.write (sf, 4); // 16193 @ 44.1, 18375 @ 48, 22500 @ 64 kHz
m_auBitStream.write ( 0, 2); // fix dflt_header_extra* = 0