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af_lavcac3enc: change default bitrate to 640

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No reason to use less.

Since the name "default" is misleading now, replace it with "auto"
(still recognize the old name).
This commit is contained in:
wm4 2014-08-12 23:34:28 +02:00
parent 5ed7bc6321
commit be792c085a
2 changed files with 5 additions and 2 deletions
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4
DOCS/man/af.rst
View File

@ -77,10 +77,12 @@ Available filters are:
``bitrate=<rate>``
The bitrate use for the AC-3 stream. Set it to 384 to get 384 kbps.
The default is 640. Some receivers might not be able to handle this.
Valid values: 32, 40, 48, 56, 64, 80, 96, 112, 128,
160, 192, 224, 256, 320, 384, 448, 512, 576, 640.
The special value ``default`` selects a default bitrate based on the
The special value ``auto`` selects a default bitrate based on the
input channel number:
:1ch: 96

3
audio/filter/af_lavcac3enc.c
View File

@ -312,12 +312,13 @@ const struct af_info af_info_lavcac3enc = {
.priv_size = sizeof(struct af_ac3enc_s),
.priv_defaults = &(const struct af_ac3enc_s){
.cfg_add_iec61937_header = 1,
.cfg_bit_rate = 640,
.cfg_min_channel_num = 5,
},
.options = (const struct m_option[]) {
OPT_FLAG("tospdif", cfg_add_iec61937_header, 0),
OPT_CHOICE_OR_INT("bitrate", cfg_bit_rate, 0, 32, 640,
({"default", 0})),
({"auto", 0}, {"default", 0})),
OPT_INTRANGE("minch", cfg_min_channel_num, 0, 2, 6),
{0}
},