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Add a --dtshd option

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The spdif decoder was hardcoded to assume that the spdif output is
capable of accepting high (>1.5Mbps) bitrates. While this is true
for modern HDMI spdif interfaces, the original coax/toslink system
cannot deal with this and will fail to work.

This patch adds an option --dtshd which can be enabled if you use
a DTS-capable receiver behind a HDMI link.
This commit is contained in:
Wessel Dankers
2013-03-03 18:48:20 +01:00
committed by wm4
parent 7bab84050f
commit 879ebe0655
4 changed files with 31 additions and 13 deletions
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35
audio/decode/ad_spdif.c
View File

@@ -27,6 +27,7 @@
#include "config.h"
#include "core/mp_msg.h"
#include "core/av_common.h"
#include "core/options.h"
#include "ad_internal.h"
LIBAD_EXTERN(spdif)
@@ -162,19 +163,27 @@ static int init(sh_audio_t *sh, const char *decoder)
sh->channels = 2;
sh->i_bps = bps;
break;
case CODEC_ID_DTS: // FORCE USE DTS-HD
opt = av_opt_find(&lavf_ctx->oformat->priv_class,
"dtshd_rate", NULL, 0, 0);
if (!opt)
goto fail;
dtshd_rate = (int*)(((uint8_t*)lavf_ctx->priv_data) +
opt->offset);
*dtshd_rate = 192000*4;
spdif_ctx->iec61937_packet_size = 32768;
sh->sample_format = AF_FORMAT_IEC61937_LE;
sh->samplerate = 192000; // DTS core require 48000
sh->channels = 2*4;
sh->i_bps = bps;
case CODEC_ID_DTS:
if(sh->opts->dtshd) {
opt = av_opt_find(&lavf_ctx->oformat->priv_class,
"dtshd_rate", NULL, 0, 0);
if (!opt)
goto fail;
dtshd_rate = (int*)(((uint8_t*)lavf_ctx->priv_data) +
opt->offset);
*dtshd_rate = 192000*4;
spdif_ctx->iec61937_packet_size = 32768;
sh->sample_format = AF_FORMAT_IEC61937_LE;
sh->samplerate = 192000; // DTS core require 48000
sh->channels = 2*4;
sh->i_bps = bps;
} else {
spdif_ctx->iec61937_packet_size = 32768;
sh->sample_format = AF_FORMAT_AC3_LE;
sh->samplerate = srate;
sh->channels = 2;
sh->i_bps = bps;
}
break;
case CODEC_ID_EAC3:
spdif_ctx->iec61937_packet_size = 24576;