04 February 2021
about 3 years ago by Encoding.com Product Team #2
Apple ProRes Audio Stream Layout Description
Added option that allows selecting the audio stream layout description in the apple_prores output format.
<?xml version="1.0"?>
<query>
<userid><<id>></userid> <!-- required -->
<userkey><<key>></userkey> <!-- required -->
<action>[Action]</action> <!-- required -->
<source>[SourceFile]</source> <!-- required -->
<format>
<output>apple_prores</output> <!-- required -->
<audio_stream>
<layout_in_audio_channel_description>[yes|no]</layout_in_audio_channel_description>
<!-- audio_stream params -->
</audio_stream>
<audio_stream>
<!-- audio_stream params -->
</audio_stream>
<!-- format params -->
</format>
</query>
{
"query": {
"userid": "<<id>>", // required
"userkey": "<<key>>", // required
"action": "[Action]", // required
"source": "[SourceFile]", //required
"format": {
"output": "apple_prores", //required
"audio_stream": [
{
"layout_in_audio_channel_description": "[yes|no]"
// audio_stream params
},
{
// audio_stream params
}
]
// format params
}
}
}
| Parameter | Description | Allowed Value | Default Value |
|---|---|---|---|
| Audio Stream Parameters | |||
| layout_in_audio_channel_description | Use audio channel description instead of channel bitmap to tag channel layout in Audio Channel Layout Atom | yes – use audio channel description to tag layout no – use channel bitmap | no |
Consistent Audio Stream Channels Number
Added option that performs audio stream channels downmix or upmix to match specified audio channels number. Added LFE control options.
<?xml version="1.0"?>
<query>
<userid><<id>></userid> <!-- required-->
<userkey><<key>></userkey> <!-- required-->
<action>[Action]</action> <!-- required-->
<source>[SourceFile]</source> <!-- required -->
<format>
<output>[OutputFormat]</output> <!-- required -->
<audio_stream>
<audio_channels_number>[ChannelsNumber]</audio_channels_number>
<automix_channels>[yes|no]</automix_channels>
<lfe_low>[LfeLow]</lfe_low>
<lfe_high>[LfeHigh]</lfe_high>
<lfe_gain>[LfeGain]</lfe_gain>
<!-- audio_stream params -->
</audio_stream>
<!-- multiple audio_streams -->
<audio_stream>
<!-- audio_stream params -->
</audio_stream>
<!-- format params -->
</format>
</query>
{
"query": {
"userid": "<<id>>", // required
"userkey": "<<key>>", // required
"action": "[Action]", // required
"source": "[SourceFile]", // required
"format": {
"output": "[OutputFormat]", // required
"audio_stream": [
{
"audio_channels_number": "[ChannelsNumber]",
"automix_channels": "[yes|no]",
"lfe_low": "[LfeLow]",
"lfe_high": "[LfeHigh]",
"lfe_gain": "[LfeGain]"
// audio_stream params
},
{
// audio_stream params
}
]
// format params
}
}
}
| Parameter | Description | Allowed Values | Default Values |
|---|---|---|---|
| automix_channels | Automatically upmix or downmix audio stream to the specified number of channels in <audio_channels_number /> | yes, no | no |
| lfe_low | LFE low cut off frequency | Integer number between 3 and 255 | 20 |
| lfe_high | LFE high cut off frequency | Integer number between 3 and 512 | 120 |
| lfe_gain | LFE gain | Float number between 0 and 1 | none |
Note for lfe_low, lfe_hight, and lfe_gain
<lfe_low />, <lfe_hight />, and <lfe_gain /> parameters will be allied only in case of channel upmixing.