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common : re-implement ffmpeg-transcode.cpp + clarify ffmpeg usage (#3846)

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* examples : remove ffmpeg-transcode.cpp

* examples : implement ffmpeg-transcode.cpp

Assisted-by: llama.cpp:local pi

* common : switch from WHISPER_FFMPEG -> WHISPER_COMMON_FFMPEG
This commit is contained in:
Georgi Gerganov
2026-05-31 15:44:07 +03:00
committed by GitHub
parent f24588a272
commit f39cc71282
6 changed files with 275 additions and 386 deletions
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README.md
+4 -3
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@@ -425,9 +425,10 @@ cmake -B build -DGGML_MUSA=1 -DMUSA_ARCHITECTURES="21"
cmake --build build -j --config Release
```
## FFmpeg support (Linux only)
## FFmpeg support (examples only)
If you want to support more audio formats (such as Opus and AAC), you can turn on the `WHISPER_FFMPEG` build flag to enable FFmpeg integration.
By default, the examples in this repo use the [miniaudio](https://github.com/mackron/miniaudio) library to decode audio files.
Some of the examples also can use FFmpeg for decoding and broader format support. To enable that, build with `WHISPER_COMMON_FFMPEG`.
First, you need to install required libraries:
@@ -442,7 +443,7 @@ sudo dnf install libavcodec-free-devel libavformat-free-devel libavutil-free-dev
Then you can build the project as follows:
```bash
cmake -B build -D WHISPER_FFMPEG=yes
cmake -B build -D WHISPER_COMMON_FFMPEG=yes
cmake --build build
```