iamf_decoder_main.md

Decoder

iamf-tools provides an example command-line decoder to process a standalone IAMF sequence (.iamf) file to a multichannel WAV file.

Building the decoder

See Build instructions to build from source.

Using the decoder

The iamf-tools command-line decoder can decode an IAMF file to a multichannel WAV file using the following flags:

Required flags:

• --input_filename Path to the input .iamf file.
• --output_filename Path to write the output WAV file.

Optional flags:

• --mix_id Mix Presentation to render (default is automatic selection).
• --output_layout Output layout to render to (default is 2.0).

Example:

bazel-bin/iamf/cli/decoder_main --input_filename=iamf/cli/testdata/iamf/tones_256samp_5p1_pcm.iamf --output_filename=output_file.wav

If successful, the decoder will produce an output_file.wav file in the current directory.