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Code Issues Releases Wiki Activity

Try to use HBR (High Bit-Rate) for EAC3.

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This commit is contained in:
Johns
2013-02-11 23:40:09 +01:00
parent 2cd667fb44
commit 54255e7b57
3 changed files with 46 additions and 12 deletions
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32
codec.c
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@@ -976,21 +976,33 @@ static int CodecAudioUpdateHelper(AudioDecoder * audio_decoder,
if ((CodecPassthrough & CodecAC3 && audio_ctx->codec_id == CODEC_ID_AC3)
|| (CodecPassthrough & CodecEAC3
&& audio_ctx->codec_id == CODEC_ID_EAC3)) {
if (audio_ctx->codec_id == CODEC_ID_EAC3) {
// EAC3 over HDMI some receivers need HBR
audio_decoder->HwSampleRate *= 4;
}
audio_decoder->HwChannels = 2;
audio_decoder->SpdifIndex = 0; // reset buffer
audio_decoder->SpdifCount = 0;
*passthrough = 1;
}
// channels not support?
// channels/sample-rate not support?
if ((err =
AudioSetup(&audio_decoder->HwSampleRate,
&audio_decoder->HwChannels, *passthrough))) {
Debug(3, "codec/audio: audio setup error\n");
// FIXME: handle errors
audio_decoder->HwChannels = 0;
audio_decoder->HwSampleRate = 0;
return err;
// try EAC3 none HBR
audio_decoder->HwSampleRate /= 4;
if (audio_ctx->codec_id != CODEC_ID_EAC3
|| (err =
AudioSetup(&audio_decoder->HwSampleRate,
&audio_decoder->HwChannels, *passthrough))) {
Debug(3, "codec/audio: audio setup error\n");
// FIXME: handle errors
audio_decoder->HwChannels = 0;
audio_decoder->HwSampleRate = 0;
return err;
}
}
Debug(3, "codec/audio: resample %s %dHz *%d -> %s %dHz *%d\n",
@@ -1073,8 +1085,10 @@ static int CodecAudioPassthroughHelper(AudioDecoder * audio_decoder,
// build SPDIF header and append A52 audio to it
// avpkt is the original data
spdif = audio_decoder->Spdif;
spdif_sz = 6144;
// 24576 = 4 * 6144
spdif_sz = 24576; // 4 * 6144
if (audio_decoder->HwSampleRate == 48000) {
spdif_sz = 6144;
}
if (spdif_sz < audio_decoder->SpdifIndex + avpkt->size + 8) {
Error(_("codec/audio: decoded data smaller than encoded\n"));
return -1;
@@ -1087,7 +1101,7 @@ static int CodecAudioPassthroughHelper(AudioDecoder * audio_decoder,
// fscod2
repeat = eac3_repeat[(avpkt->data[4] & 0x30) >> 4];
}
//fprintf(stderr, "repeat %d\n", repeat);
// fprintf(stderr, "repeat %d %d\n", repeat, avpkt->size);
// copy original data for output
// pack upto repeat EAC-3 pakets into one IEC 61937 burst