Plan the encodes

In Map the output encodes to the sources, you sketched out a plan for the encodes you want to create in each output group. Below is the example of the plan from that step, showing the outputs and encodes, and the sources for those encodes.

At some point, you must fill in the details for the encodes identified in the second and third columns of this table. You have a choice:

• You can decide these details now.

• You can decide the details later, when you are actually creating the channel. If you decide to do this, we recommend you still read the procedures after the table, to get an idea of what is involved in defining an encode.

Example

Output group	Type of encode	Encode nickname	Characteristics of the encode	Source	Identifier in source
HLS	Video	VideoA	AVC 1920x1080, 5 Mbps	HEVC	PID 600
		VideoB	AVC 1280x720, 3 Mbps	HEVC	PID 600
		VideoC	AVC 320x240, 750 Kbps	HEVC	PID 600
	Audio	AudioA	AAC 2.0 in English at 192000 bps	AAC 2.0	PID 759
		AudioB	AAC 2.0 in French at 192000 bps	AAC 2.0	PID 747
	Captions	CaptionsA	WebVTT (object-style) converted from embedded, in English	Embedded	Channel 4
		CaptionsB	WebVTT (object-style) converted from embedded, in French	Embedded	Channel 2
RTMP	Video	VideoD	AVC 1920x1080, 5Mbps	HEVC	PID 600
	Audio	AudioC	Dolby Digital 5.1 in Spanish	Dolby Digital 5.1	PID 720
	Captions	CaptionsC	RTMP CaptionInfo (converted from embedded) in Spanish	Embedded	Channel 2
Archive	Video	VideoE	AVC, 1920x1080, 5 Mbps	HEVC	PID 600
	Audio	AudioD	Dolby Digital 2.0 in Spanish	AAC 2.0	PID 746
		AudioE	Dolby Digital 2.0 in French	AAC 2.0	PID 747
		AudioF	Dolby Digital 2.0 in English	AAC 2.0	PID 759
	Captions	CaptionsD	DVB-Sub (object-style) converted from Teletext, in 6 languages.	Teletext	PID 815

Design the details for each video encode

For each video encode in your table, you have already identified the source asset, codec, resolution and bitrate. You must now identify all the other encoding parameters you need to set.

Follow this procedure for each individual video encode.

1. Look at the fields in the video encode section of each output. To view these fields, follow these steps. Don't worry about not completing all the sections. You only want to display the video encode fields, and you will then cancel the channel.

   • On the MediaLive home page, choose Create channel, and in the navigation pane, choose Channels.

     If you've created a channel before, you won't see the home page. In that case, in the MediaLive navigation pane, choose Channels, and then choose Create channel.

   • On the Create channel page, under Output groups, choose Add.

     Don't worry that you haven't completed any of the earliers sections in the channel. You are only trying to display all the fields for the video encode.

   • In the Add output group section, choose HLS and choose Confirm.

   • Under that output group, choose Output 1.

   • In the Output section, go to the Stream settings section, and choose the Video link.

   • In the Codec settings field, choose the codec that you want for this video encode. More fields appear. Choose the field labels for all the sections to display all the fields.

2. In each section, determine whether you need to change the defaults.

   • Many of the fields have defaults, which means you can leave the field value as is. For details about a field and its default value, choose the Info link next to the field.

   • There are some fields that you might need to set according to instructions from your downstream system, to match the expectations of the downstream system.

   • There are some fields where the value you enter affects the output charges for this channel. These are:

     • The Width and Height fields (which define the video resolution).

     • The Framerate fields.

     • The Rate control fields.

     For information about charges, see the MediaLive price list.

   • You can read about some of the fields in the following sections:

     • For information about the Color space fields, see Handling complex color space conversions.

     • For information about the Additional encoding settings fields, see Setting up enhanced VQ mode

     • For information about the Rate control fields, see Setting the rate control mode. There are fields in this section that affect the output charges for this channel. For more information about charges, see the MediaLive price list.

     • For information about the Timecode fields, see Working with timecodes and timestamps.

3. Make detailed notes about the values for all the fields you plan to change. Do this for every video encode that you identified.

Design the details for each audio encode

For each audio encode in your table, you have already identified the source asset, codec and bitrate. You must now identify all the other encoding parameters you need to set.

Follow this procedure for each individual audio encode.

1. Look at the fields in the audio encode section of each output. To view these fields, follow the same steps as for the video encodes, but choose the Audio 1 link.

   With audio encodes, there aren't many fields for each code. But the fields for the codecs are very different from each other.

2. Study the fields and make notes.

Design the details for each captions encode

For each captions encode in your table, you have already identified the source captions, format, and language. You must now identify all the other encoding parameters you need to set.

Follow this procedure for each individual captions encode.

1. Look at the fields in the captions encode section of each output. To view these fields, follow the same steps as for the video encodes, but choose Add caption to add a captions section, because there is no captions section by default.

   With captions encodes, there aren't many fields for each captions format. But the fields for the formats are very different from each other.

2. Study the fields and make notes.