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ad_spdif: fix DTS-HD HRA handling 

Apparently, for bit streaming DTS-HD MA is specified to be handled as an
eight channel (7.1) bit stream, while DTS-HD HRA is specified to be
handled as a stereo bit stream.

Define a variable for this, and utilize it to set the correct values
for both the DTS-HD bit streaming rate, as well as the channel count
for the SPDIF encoder.

Fixes #6148
This commit is contained in:
Jan Ekström 2018-10-30 01:36:38 +02:00
parent 865627d849
commit 25ee18d6e5
1 changed files with 10 additions and 2 deletions
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12
audio/decode/ad_spdif.c
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@ -210,11 +210,19 @@ static int init_filter(struct mp_filter *da, AVPacket *pkt)
bool is_hd = profile == FF_PROFILE_DTS_HD_HRA ||
profile == FF_PROFILE_DTS_HD_MA ||
profile == FF_PROFILE_UNKNOWN;
// Apparently, DTS-HD over SPDIF is specified to be 7.1 (8 channels)
// for DTS-HD MA, and stereo (2 channels) for DTS-HD HRA. The bit
// streaming rate as well as the signaled channel count are defined
// based on this value.
int dts_hd_spdif_channel_count = profile == FF_PROFILE_DTS_HD_HRA ?
2 : 8;
if (spdif_ctx->use_dts_hd && is_hd) {
av_dict_set(&format_opts, "dtshd_rate", "768000", 0); // 4*192000
av_dict_set_int(&format_opts, "dtshd_rate",
dts_hd_spdif_channel_count * 96000, 0);
sample_format = AF_FORMAT_S_DTSHD;
samplerate = 192000;
num_channels = 2*4;
num_channels = dts_hd_spdif_channel_count;
} else {
sample_format = AF_FORMAT_S_DTS;
samplerate = 48000;