Function: venc_create_channel

aclError aclvencCreateChannel(aclvencChannelDesc *channelDesc)

ret = acl.media.venc_create_channel(venc_channel_desc)

Creates a video encoding channel, which is reusable. After being destroyed, the channel is no longer available.

The Atlas Training Series Product does not support this API.

venc_channel_desc: int, channel description.

Use the acl.media.venc_create_channel_desc call to create data of the aclvencChannelDesc type, and use the acl.media.venc_set_channel_desc series calls to set the attributes of the channel description.

ret: int, error code.

• 0 indicates success.
• Other values indicate failure.

• Channels are thread-unsafe, that is, a separate channel should be created for each thread.
• The restrictions on the number of channels are described in General Description.
• Two streams are created by calling acl.rt.create_stream twice in the acl.media.venc_create_channel API. One is for the video stream decoding task, and the other is for processing the callback function. These streams can be automatically destroyed only after the channel is destroyed by calling acl.media.venc_destroy_channel.
• When implementing the VENC function, you need to comply with the restrictions of the acl.rt.create_stream API, such as the number of streams.

For details about the API call sequence and example, see Media Data Processing V1.