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Add optional AV1 software decoding via dav1d for ExoPlayer (#721)

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## Description
Adds the [`dav1d` decoder
module](https://github.com/androidx/media/tree/release/libraries/decoder_av1)
for ExoPlayer as an option. It can be enabled in advanced settings.

Performance will vary between devices.

### Related issues
Closes #103

### Dev notes

As with the ffmpeg module, this one is not required to build the entire
app so it's easier for developers to get started.

This also introduces a customized `DefaultRenderersFactory` for
ExoPlayer, but its largely copied from the super class's implementation.
This commit is contained in:
Ray 2026-01-18 18:35:41 -05:00 • committed by GitHub
parent a0329b2c1d
commit 4dd44b935c
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GPG key ID: B5690EEEBB952194
9 changed files with 170 additions and 36 deletions
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29
scripts/ffmpeg/build_ffmpeg_decoder.sh
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@ -15,6 +15,7 @@ PROJECT_ROOT="$(realpath "${SCRIPT_DIR}/../../")"
ANDROID_ABI=21
ENABLED_DECODERS=(dca ac3 eac3 mlp truehd flac alac pcm_mulaw pcm_alaw mp3)
FFMPEG_BRANCH="release/6.0"
DAV1D_BRANCH="1.5.3"
# Path configs
DIR_PATH="$(pwd)"
@ -22,6 +23,7 @@ TARGET_PATH="$PROJECT_ROOT/app/libs"
MEDIA_PATH="$DIR_PATH/ffmpeg_decoder/media"
FFMPEG_MODULE_PATH="$MEDIA_PATH/libraries/decoder_ffmpeg/src/main"
FFMPEG_PATH="$DIR_PATH/ffmpeg_decoder/ffmpeg"
AV1_MODULE_PATH="$MEDIA_PATH/libraries/decoder_av1/src/main"
HOST="$(uname -s | tr '[:upper:]' '[:lower:]')"
HOST_PLATFORM="$HOST-x86_64"
@ -48,16 +50,39 @@ else
git clone https://github.com/FFmpeg/FFmpeg --depth 1 --single-branch -b "$FFMPEG_BRANCH" ffmpeg
fi
ln -s "$FFMPEG_PATH" "${FFMPEG_MODULE_PATH}/jni/ffmpeg"
[[ ! -d "${FFMPEG_MODULE_PATH}/jni/ffmpeg" ]] && ln -s "$FFMPEG_PATH" "${FFMPEG_MODULE_PATH}/jni/ffmpeg"
pushd "${FFMPEG_MODULE_PATH}/jni" || exit
./build_ffmpeg.sh "${FFMPEG_MODULE_PATH}" "${NDK_PATH}" "${HOST_PLATFORM}" "${ANDROID_ABI}" "${ENABLED_DECODERS[@]}"
# av1 module
pushd "$AV1_MODULE_PATH/jni" || exit
if [[ ! -d cpu_features ]]; then
git clone https://github.com/google/cpu_features --depth 1 --single-branch cpu_features
fi
pushd "$AV1_MODULE_PATH/jni" || exit
if [[ -d dav1d ]]; then
pushd dav1d || exit
git checkout --force "$DAV1D_BRANCH"
else
git clone https://code.videolan.org/videolan/dav1d --depth 1 --single-branch -b "$DAV1D_BRANCH" dav1d
fi
pushd "$AV1_MODULE_PATH/jni" || exit
/usr/bin/env bash ./build_dav1d.sh "${AV1_MODULE_PATH}" "${NDK_PATH}" "${HOST_PLATFORM}"
pushd "$MEDIA_PATH" || exit
./gradlew :lib-decoder-ffmpeg:assemble
./gradlew :lib-decoder-ffmpeg:assemble :lib-decoder-av1:assemble
popd || exit
popd || exit
cp "$MEDIA_PATH/libraries/decoder_ffmpeg/buildout/outputs/aar/lib-decoder-ffmpeg-release.aar" "$TARGET_PATH/"
cp "$MEDIA_PATH/libraries/decoder_av1/buildout/outputs/aar/lib-decoder-av1-release.aar" "$TARGET_PATH/"
popd || exit