frodovdr/vdr-plugin-softhddevice
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Code Issues Releases Wiki Activity

Support more LPCM sample rates and channels.

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This commit is contained in:
Johns 2012-02-06 23:54:22 +01:00
parent 99728258f1
commit 947f6b312e
2 changed files with 24 additions and 7 deletions
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1
ChangeLog
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@ -1,6 +1,7 @@
User johns User johns
Date: Date:
Support more LPCM sample rates and number of channels.
Quick&dirty support for mpeg LPCM streams. Quick&dirty support for mpeg LPCM streams.
Workaround for text2skin undrawn OSD areas. Workaround for text2skin undrawn OSD areas.
Detect dvb LPCM stream and ignore it. Detect dvb LPCM stream and ignore it.

30
softhddev.c
View File

@ -282,20 +282,36 @@ int PlayAudio(const uint8_t * data, int size,
// Private stram + LPCM ID // Private stram + LPCM ID
} else if (data[-n - 9 + 3] == 0xBD && data[0] == 0xA0) { } else if (data[-n - 9 + 3] == 0xBD && data[0] == 0xA0) {
if (AudioCodecID != CODEC_ID_PCM_DVD) { if (AudioCodecID != CODEC_ID_PCM_DVD) {
static int samplerates[] = { 48000, 96000, 44100, 32000 };
int samplerate; int samplerate;
int channels; int channels;
int bits_per_sample;
Debug(3, "[softhddev]%s: LPCM %d sr:%d bits:%d chan:%d\n", Debug(3, "[softhddev]%s: LPCM %d sr:%d bits:%d chan:%d\n",
__FUNCTION__, id, data[5] >> 6, __FUNCTION__, id, data[5] >> 4,
(((data[5] >> 4) & 0x3) + 4) * 4, (data[5] & 0x7) + 1); (((data[5] >> 6) & 0x3) + 4) * 4, (data[5] & 0x7) + 1);
CodecAudioClose(MyAudioDecoder); CodecAudioClose(MyAudioDecoder);
// FIXME: check supported formats. bits_per_sample = (((data[5] >> 6) & 0x3) + 4) * 4;
if (bits_per_sample != 16) {
samplerate = 48000; Error(_
channels = 2; ("softhddev: LPCM %d bits per sample aren't supported\n"),
bits_per_sample);
// FIXME: handle unsupported formats.
}
samplerate = samplerates[data[5] >> 4];
channels = (data[5] & 0x7) + 1;
AudioSetup(&samplerate, &channels, 0); AudioSetup(&samplerate, &channels, 0);
printf("%d\n", size); if (samplerate != samplerates[data[5] >> 4]) {
Error(_("softhddev: LPCM %d sample-rate is unsupported\n"),
samplerates[data[5] >> 4]);
// FIXME: support resample
}
if (channels != (data[5] & 0x7) + 1) {
Error(_("softhddev: LPCM %d channels are unsupported\n"),
(data[5] & 0x7) + 1);
// FIXME: support resample
}
//CodecAudioOpen(MyAudioDecoder, NULL, CODEC_ID_PCM_DVD); //CodecAudioOpen(MyAudioDecoder, NULL, CODEC_ID_PCM_DVD);
AudioCodecID = CODEC_ID_PCM_DVD; AudioCodecID = CODEC_ID_PCM_DVD;
} }