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For AAC, do not enable SBR by default

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This commit is contained in:
Philippe G
2021-05-08 23:39:30 -07:00
parent d4cd400cd9
commit 7b439ae6ee
5 changed files with 14 additions and 1 deletions
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4
components/squeezelite/helix-aac.c
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@@ -160,6 +160,7 @@ static int read_mp4_header(unsigned long *samplerate_p, unsigned char *channels_
info.nChans = (*ptr & 0x7f) >> 3;
*channels_p = info.nChans;
// Note that 24 bits frequencies are not handled
#if AAC_ENABLE_SBR
if (AOT == 5 || AOT == 29) {
*samplerate_p = rates[((ptr[0] & 0x03) << 1) | (ptr[1] >> 7)];
LOG_WARN("AAC stream with SBR => high CPU required (use LMS proxied mode)");
@@ -172,6 +173,9 @@ static int read_mp4_header(unsigned long *samplerate_p, unsigned char *channels_
*samplerate_p = 44100;
LOG_ERROR("AAC audio object type %d not handled", AOT);
}
#else
*samplerate_p = info.sampRateCore;
#endif
HAAC(a, SetRawBlockParams, a->hAac, 0, &info);
LOG_DEBUG("playable aac track: %u (p:%x, r:%d, c:%d, desc_len:%d)", trak, AOT, info.sampRateCore, info.nChans, desc_len);
play = trak;