Samples

This page lists the sample applications demonstrating the AVBlocks Python SDK capabilities.

Common Options

Most samples support these options:

• -i, --input — Input file path

• -o, --output — Output file path

• --help — Show usage help message

Processing Modes

File Mode

The simplest approach — specify input and output files, and the transcoder handles everything:

• dec-aac-adts-file, enc-mp3-file, etc.

Pull Mode

Pull encoded/decoded samples one at a time for custom processing:

• dec-avc-pull, enc-aac-adts-pull, etc.

• Useful for streaming, frame-by-frame analysis, or custom containers

Push Mode

Push data to the encoder/decoder manually:

• enc-aac-adts-push, enc-mp3-push

• Useful for real-time encoding from live sources

Sample Categories

Audio Decoding

• dec_aac_adts_file — Decode AAC ADTS to WAV

• dec_aac_adts_pull — Decode AAC ADTS to WAV using pull mode

• dec_g711_alaw_file — Decode G.711 A-law to WAV

• dec_g711_ulaw_file — Decode G.711 μ-law to WAV

• dec_mp3_file — Decode MP3 to WAV

• dec_opus_file — Decode Opus to WAV

• dec_vorbis_file — Decode Vorbis to WAV

Audio Encoding

• enc_aac_adts_file — Encode WAV to AAC ADTS

• enc_aac_adts_pull — Encode WAV to AAC ADTS using pull mode

• enc_aac_adts_push — Encode WAV to AAC ADTS using push mode

• enc_g711_alaw_file — Encode WAV to G.711 A-law

• enc_g711_ulaw_file — Encode WAV to G.711 μ-law

• enc_mp3_file — Encode WAV to MP3

• enc_mp3_pull — Encode WAV to MP3 using pull mode

• enc_mp3_push — Encode WAV to MP3 using push mode

• enc_opus_file — Encode WAV to Opus (OGG)

• enc_vorbis_file — Encode WAV to Vorbis (OGG)

Video Decoding

• dec_avc_file — Decode H.264/AVC to raw YUV

• dec_avc_pull — Decode H.264/AVC to YUV using pull mode

• dec_avc_au — Decode H.264 access units from directory

• dec_hevc_file — Decode H.265/HEVC to raw YUV

• dec_hevc_au — Decode H.265 access units from directory

• dec_vp8_file — Decode VP8 (IVF) to raw YUV

• dec_vp9_file — Decode VP9 (IVF) to raw YUV

Video Encoding

• enc_avc_file — Encode raw YUV to H.264/AVC

• enc_avc_pull — Encode raw YUV to H.264 using pull mode

• enc_hevc_file — Encode raw YUV to H.265/HEVC

• enc_hevc_pull — Encode raw YUV to H.265 using pull mode

• enc_vp8_file — Encode raw YUV to VP8 (IVF)

• enc_vp9_file — Encode raw YUV to VP9 (IVF)

Container Operations

Demuxing

• demux_mp4_file — Demux MP4 into separate audio/video streams

• demux_webm_file — Demux WebM into separate audio/video streams

Muxing

• mux_mp4_file — Mux audio and video into MP4 container

• mux_webm_file — Mux audio and video into WebM container

Media Information

• info_stream_file — Display stream information (codecs, resolution, etc.)

• info_metadata_file — Display metadata and extract embedded pictures

Audio Processing

• audio_upsample — Upsample audio from 44.1 KHz to 48 KHz

Video Processing

• video_crop — Crop a video by removing pixels from the edges

• video_framerate — Change the frame rate of a video

• video_pad — Add black border padding around a video

• video_upscale — Upscale a video to Full HD (1920x1080) using bicubic interpolation

Utilities

• enc_preset_file — Encode using AVBlocks presets

• re_encode — Remux media with optional forced re-encoding

• slideshow — Create video slideshow from images

• dump_avc_au — Dump H.264/AVC stream into access unit files

• dump_hevc_au — Dump H.265/HEVC stream into access unit files