mirror of
https://projects.vdr-developer.org/git/vdr-plugin-softhddevice.git
synced 2023-10-10 19:16:51 +02:00
Add support for ac3 audio pass through.
This commit is contained in:
Johns
parent
92ffd978b0
commit
45a34a3381
@ -1,6 +1,8 @@
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User johns
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Data:
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Add support for ac3 audio pass through.
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Add workaround for alsa not playing hdmi sound.
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Fix bug: broken device plugin stop and exit.
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Show transparent cursor to hide cursor.
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VDPAU: Add color standard support.
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@ -115,6 +115,10 @@ Setup: /etc/vdr/setup.conf
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softhddevice.AudioDelay = 0
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+n or -n ms
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softhddevice.AudioPassthrough = 0
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0 = none, 1 = AC-3
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Commandline:
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------------
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194
codec.c
194
codec.c
@ -35,8 +35,12 @@
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*/
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#define USE_AVPARSER
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/// compile with passthrough support (experimental)
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#define USE_PASSTHROUGH
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#include <stdio.h>
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#include <unistd.h>
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#include <endian.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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@ -585,8 +589,17 @@ struct _audio_decoder_
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int HwChannels; ///< hw channels
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ReSampleContext *ReSample; ///< audio resampling context
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};
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#ifdef USE_PASSTHROUGH
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//static char CodecPassthroughPCM; ///< pass pcm through (unsupported)
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static char CodecPassthroughAC3; ///< pass ac3 through
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//static char CodecPassthroughDTS; ///< pass dts through (unsupported)
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//static char CodecPassthroughMPA; ///< pass mpa through (unsupported)
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#endif
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/**
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** Allocate a new audio decoder context.
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**
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@ -683,6 +696,18 @@ void CodecAudioClose(AudioDecoder * audio_decoder)
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}
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}
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/**
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** Set audio pass-through.
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*/
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void CodecSetAudioPassthrough(int mask)
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{
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#ifdef USE_PASSTHROUGH
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CodecPassthroughAC3 = mask & 1 ? 1 : 0;
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#endif
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// FIXME: must update audio decoder (nr. of channels wrong)
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(void)mask;
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}
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#ifdef USE_AVPARSER
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/**
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@ -730,6 +755,7 @@ void CodecAudioDecode(AudioDecoder * audio_decoder, const AVPacket * avpkt)
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!index ? (uint64_t) spkt->pts : AV_NOPTS_VALUE,
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!index ? (uint64_t) spkt->dts : AV_NOPTS_VALUE, -1);
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// FIXME: make this a function for both #ifdef cases
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if (dpkt->size) {
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int buf_sz;
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@ -765,7 +791,15 @@ void CodecAudioDecode(AudioDecoder * audio_decoder, const AVPacket * avpkt)
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audio_decoder->SampleRate = audio_ctx->sample_rate;
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audio_decoder->HwSampleRate = audio_ctx->sample_rate;
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audio_decoder->Channels = audio_ctx->channels;
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#ifdef USE_PASSTHROUGH
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// SPDIF/HDMI passthrough
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if (CodecPassthroughAC3 && audio_ctx->codec_id == CODEC_ID_AC3) {
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audio_decoder->HwChannels = 2;
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} else
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#endif
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{
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audio_decoder->HwChannels = audio_ctx->channels;
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}
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// channels not support?
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if ((err =
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@ -826,6 +860,81 @@ void CodecAudioDecode(AudioDecoder * audio_decoder, const AVPacket * avpkt)
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AudioEnqueue(outbuf, outlen);
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}
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} else {
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#ifdef USE_PASSTHROUGH
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// SPDIF/HDMI passthrough
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if (CodecPassthroughAC3
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&& audio_ctx->codec_id == CODEC_ID_AC3) {
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// build SPDIF header and append A52 audio to it
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// dpkt is the original data
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buf_sz = 6144;
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if (buf_sz < dpkt->size + 8) {
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Error(_
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("codec/audio: decoded data smaller than encoded\n"));
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break;
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}
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// copy original data for output
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// FIXME: not 100% sure, if endian is correct
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buf[0] = htole16(0xF872); // iec 61937 sync word
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buf[1] = htole16(0x4E1F);
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buf[2] = htole16(0x01 | (dpkt->data[5] & 0x07) << 8);
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buf[3] = htole16(dpkt->size * 8);
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swab(dpkt->data, buf + 4, dpkt->size);
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memset(buf + 4 + dpkt->size / 2, 0,
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buf_sz - 8 - dpkt->size);
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}
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#if 0
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//
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// old experimental code
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//
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if (1) {
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// FIXME: need to detect dts
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// copy original data for output
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// FIXME: buf is sint
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buf[0] = 0x72;
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buf[1] = 0xF8;
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buf[2] = 0x1F;
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buf[3] = 0x4E;
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buf[4] = 0x00;
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switch (dpkt->size) {
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case 512:
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buf[5] = 0x0B;
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break;
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case 1024:
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buf[5] = 0x0C;
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break;
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case 2048:
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buf[5] = 0x0D;
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break;
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default:
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Debug(3,
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"codec/audio: dts sample burst not supported\n");
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buf[5] = 0x00;
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break;
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}
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buf[6] = (dpkt->size * 8);
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buf[7] = (dpkt->size * 8) >> 8;
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//buf[8] = 0x0B;
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//buf[9] = 0x77;
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//printf("%x %x\n", dpkt->data[0],dpkt->data[1]);
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// swab?
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memcpy(buf + 8, dpkt->data, dpkt->size);
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memset(buf + 8 + dpkt->size, 0,
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buf_sz - 8 - dpkt->size);
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} else if (1) {
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// FIXME: need to detect mp2
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// FIXME: mp2 passthrough
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// see softhddev.c version/layer
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// 0x04 mpeg1 layer1
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// 0x05 mpeg1 layer23
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// 0x06 mpeg2 ext
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// 0x07 mpeg2.5 layer 1
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// 0x08 mpeg2.5 layer 2
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// 0x09 mpeg2.5 layer 3
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}
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// DTS HD?
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// True HD?
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#endif
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#endif
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AudioEnqueue(buf, buf_sz);
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}
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}
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@ -904,90 +1013,7 @@ void CodecAudioDecode(AudioDecoder * audio_decoder, const AVPacket * avpkt)
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avcodec_decode_audio4(audio_ctx, frame, &got_frame, dpkt);
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#else
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#endif
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if (buf_sz > 0) { // something decoded
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// Update audio clock
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if ((uint64_t) spkt->pts != AV_NOPTS_VALUE) {
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AudioSetClock(spkt->pts);
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spkt->pts = AV_NOPTS_VALUE;
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}
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// FIXME: must first play remainings bytes, than change and play new.
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if (audio_decoder->SampleRate != audio_ctx->sample_rate
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|| audio_decoder->Channels != audio_ctx->channels) {
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int err;
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if (audio_decoder->ReSample) {
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audio_resample_close(audio_decoder->ReSample);
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audio_decoder->ReSample = NULL;
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}
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audio_decoder->SampleRate = audio_ctx->sample_rate;
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audio_decoder->HwSampleRate = audio_ctx->sample_rate;
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audio_decoder->Channels = audio_ctx->channels;
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audio_decoder->HwChannels = audio_ctx->channels;
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// channels not support?
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if ((err =
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AudioSetup(&audio_decoder->HwSampleRate,
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&audio_decoder->HwChannels))) {
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Debug(3, "codec/audio: resample %dHz *%d -> %dHz *%d\n",
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audio_ctx->sample_rate, audio_ctx->channels,
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audio_decoder->HwSampleRate,
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audio_decoder->HwChannels);
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if (err == 1) {
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audio_decoder->ReSample =
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av_audio_resample_init(audio_decoder->HwChannels,
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audio_ctx->channels, audio_decoder->HwSampleRate,
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audio_ctx->sample_rate, audio_ctx->sample_fmt,
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audio_ctx->sample_fmt, 16, 10, 0, 0.8);
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// libav-0.8_pre didn't support 6 -> 2 channels
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if (!audio_decoder->ReSample) {
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Error(_("codec/audio: resample setup error\n"));
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audio_decoder->HwChannels = 0;
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audio_decoder->HwSampleRate = 0;
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}
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} else {
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// FIXME: handle errors
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Debug(3, "codec/audio: audio setup error\n");
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audio_decoder->HwChannels = 0;
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audio_decoder->HwSampleRate = 0;
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break;
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}
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}
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}
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if (audio_decoder->HwSampleRate && audio_decoder->HwChannels) {
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// need to resample audio
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if (audio_decoder->ReSample) {
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int16_t outbuf[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 4 +
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FF_INPUT_BUFFER_PADDING_SIZE]
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__attribute__ ((aligned(16)));
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int outlen;
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// FIXME: libav-0.7.2 crash here
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outlen =
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audio_resample(audio_decoder->ReSample, outbuf, buf,
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buf_sz);
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#ifdef DEBUG
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if (outlen != buf_sz) {
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Debug(3, "codec/audio: possible fixed ffmpeg\n");
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}
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#endif
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if (outlen) {
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// outlen seems to be wrong in ffmpeg-0.9
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outlen /= audio_ctx->channels *
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av_get_bytes_per_sample(audio_ctx->sample_fmt);
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outlen *=
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audio_decoder->HwChannels *
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av_get_bytes_per_sample(audio_ctx->sample_fmt);
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Debug(4, "codec/audio: %d -> %d\n", buf_sz, outlen);
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AudioEnqueue(outbuf, outlen);
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}
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} else {
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AudioEnqueue(buf, buf_sz);
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}
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}
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}
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// FIXME: see above, old code removed
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index += n;
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}
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@ -37,6 +37,7 @@ extern "C"
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{
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#include "video.h"
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extern void AudioPoller(void);
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extern void CodecSetAudioPassthrough(int);
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}
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//////////////////////////////////////////////////////////////////////////////
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@ -57,6 +58,7 @@ static int ConfigVideoDenoise; ///< config denoise
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static int ConfigVideoSharpen; ///< config sharpen
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static char ConfigVideoScaling; ///< config scaling
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static int ConfigVideoAudioDelay; ///< config audio delay
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static int ConfigAudioPassthrough; ///< config audio pass-through
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static volatile char DoMakePrimary; ///< flag switch primary
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//////////////////////////////////////////////////////////////////////////////
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@ -273,6 +275,7 @@ class cMenuSetupSoft:public cMenuSetupPage
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int Sharpen;
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int Scaling;
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int AudioDelay;
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int AudioPassthrough;
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protected:
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virtual void Store(void);
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public:
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@ -290,6 +293,9 @@ cMenuSetupSoft::cMenuSetupSoft(void)
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static const char *const scaling[] = {
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"Normal", "Fast", "HQ", "Anamorphic"
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};
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static const char *const passthrough[] = {
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"None", "AC-3"
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};
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// cMenuEditBoolItem cMenuEditBitItem cMenuEditNumItem
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// cMenuEditStrItem cMenuEditStraItem cMenuEditIntItem
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@ -313,6 +319,9 @@ cMenuSetupSoft::cMenuSetupSoft(void)
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AudioDelay = ConfigVideoAudioDelay;
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Add(new cMenuEditIntItem(tr("Audio delay (ms)"), &AudioDelay, -1000,
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1000));
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AudioPassthrough = ConfigAudioPassthrough;
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Add(new cMenuEditStraItem(tr("Audio pass-through"), &AudioPassthrough, 2,
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passthrough));
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}
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/**
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@ -334,6 +343,8 @@ void cMenuSetupSoft::Store(void)
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VideoSetScaling(ConfigVideoScaling);
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SetupStore("AudioDelay", ConfigVideoAudioDelay = AudioDelay);
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VideoSetAudioDelay(ConfigVideoAudioDelay);
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SetupStore("AudioPassthrough", ConfigAudioPassthrough = AudioPassthrough);
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CodecSetAudioPassthrough(ConfigAudioPassthrough);
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}
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//////////////////////////////////////////////////////////////////////////////
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@ -837,6 +848,10 @@ bool cPluginSoftHdDevice::SetupParse(const char *name, const char *value)
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VideoSetAudioDelay(ConfigVideoAudioDelay = atoi(value));
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return true;
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}
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if (!strcmp(name, "AudioPassthrough")) {
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CodecSetAudioPassthrough(ConfigAudioPassthrough = atoi(value));
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return true;
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}
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return false;
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}
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