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deps: move exoplayer build into gradle/submodules

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Move the ExoPlayer build process into gradle by leveraging some shell
scripting and submodule magic.

This more or less kills all windows compatibility, but that is fine.
Who even develops on windows?
This commit is contained in:
Alexander Capehart 2023-02-13 21:40:17 -07:00
parent 556c1cf43b
commit 399942e7e5
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GPG key ID: 37DBE3621FE9AD47
7 changed files with 15 additions and 150 deletions
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2
.gitignore vendored
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@ -3,8 +3,6 @@
local.properties
build/
release/
srclibs/
libs/
# Studio
.idea/

4
.gitmodules vendored Normal file
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@ -0,0 +1,4 @@
[submodule "ExoPlayer"]
path = ExoPlayer
url = https://github.com/OxygenCobalt/ExoPlayer.git
branch = auxio

1
ExoPlayer Submodule

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Subproject commit f408259be23896f4249f4ea9981a4244fe026003

12
README.md
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@ -68,12 +68,12 @@ precise/original dates, sort tags, and more
## Building
Auxio relies on a custom version of ExoPlayer that enables some extra features. So, the build process is as follows:
1. `cd` into the project directory.
2. Run `python3 prebuild.py`, which installs ExoPlayer and it's extensions.
- The pre-build process only works with \*nix systems. On windows, this process must be done manually.
3. Build the project normally in Android Studio.
Auxio relies on a custom version of ExoPlayer that enables some extra features. This adds some caveats to
the build process:
1. The project uses submodules, so when cloning initially, use `git clone --recurse-submodules` to properly
download in the external code.
2. You are **unable** to build this project on windows, as the custom ExoPlayer build runs shell scripts that
will only work on unix-based systems.
## Contributing

8
app/build.gradle
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@ -105,12 +105,8 @@ dependencies {
// Exoplayer
// WARNING: THE EXOPLAYER VERSION MUST BE KEPT IN LOCK-STEP WITH THE PRE-BUILD SCRIPT.
// IF NOT, VERY UNFRIENDLY BUILD FAILURES AND CRASHES MAY ENSUE.
implementation("com.google.android.exoplayer:exoplayer-core:2.18.2") {
exclude group: "com.google.android.exoplayer", module: "exoplayer-extractor"
}
implementation fileTree(dir: "libs", include: ["library-*.aar"])
implementation fileTree(dir: "libs", include: ["extension-*.aar"])
implementation project(":exoplayer-library-core")
implementation project(":exoplayer-extension-ffmpeg")
// Image loading
implementation "io.coil-kt:coil-base:2.2.0"

136
prebuild.py
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@ -1,136 +0,0 @@
#!/usr/bin/env python3
# This script automatically assembles any required ExoPlayer extensions or components as
# an AAR blob. This method is not only faster than depending on ExoPlayer outright as we
# only need to build our components once, it's also easier to use with Android Studio, which
# tends to get bogged down when we include a massive source repository as part of the gradle
# project. This script may change from time to time depending on the components or extensions
# that I leverage. It's recommended to re-run it after every release to ensure consistent
# behavior.
# As for why I wrote this in Python and not Bash, it's because Bash really does not have
# the capabilities for a nice, seamless pre-build process.
import os
import platform
import sys
import subprocess
import re
# WARNING: THE EXOPLAYER VERSION MUST BE KEPT IN LOCK-STEP WITH THE FFMPEG EXTENSION AND
# THE GRADLE DEPENDENCY. IF NOT, VERY UNFRIENDLY BUILD FAILURES AND CRASHES MAY ENSUE.
OK="\033[1;32m" # Bold green
FATAL="\033[1;31m" # Bold red
WARN="\033[1;33m" # Bold yellow
RUN="\033[1;34m" # Bold blue
INFO="\033[1m" # Bold white
NC="\033[0m"
# We do some shell scripting later on, so we can't support windows.
# TODO: Support windows
system = platform.system()
if system not in ["Linux", "Darwin"]:
print("fatal: unsupported platform " + system)
sys.exit(1)
def sh(cmd):
print(RUN + "execute: " + NC + cmd)
code = subprocess.call(["sh", "-c", "set -e; " + cmd])
if code != 0:
print(FATAL + "fatal:" + NC + " command failed with exit code " + str(code))
sys.exit(1)
start_path = os.path.join(os.path.abspath(os.curdir))
libs_path = os.path.join(start_path, "app", "libs")
if os.path.exists(libs_path):
reinstall = input(INFO + "info:" + NC + " exoplayer is already installed. " +
"would you like to reinstall it? [y/n] ")
if not re.match("[yY][eE][sS]|[yY]", reinstall):
sys.exit(0)
exoplayer_path = os.path.join(start_path, "app", "build", "srclibs", "exoplayer")
# Ensure that there is always an SDK environment variable.
# Technically there is also an sdk.dir field in local.properties, but that does
# not work when you clone a project without a local.properties.
if os.getenv("ANDROID_HOME") is None and os.getenv("ANDROID_SDK_ROOT") is None:
print(FATAL + "fatal:" + NC + " sdk location not found. please define " +
"ANDROID_HOME/ANDROID_SDK_ROOT before continuing.")
sys.exit(1)
ndk_path = os.getenv("ANDROID_NDK_HOME")
if ndk_path is None or not os.path.isfile(os.path.join(ndk_path, "ndk-build")):
# We don't have a proper path. Do some digging on the Android SDK directory
# to see if we can find it.
if system == "Linux":
ndk_root = os.path.join(os.getenv("HOME"), "Android", "Sdk", "ndk")
elif system == "Darwin":
ndk_root = os.path.join(os.getenv("HOME"), "Library", "Android", "sdk", "ndk")
candidates = []
for entry in os.scandir(ndk_root):
if entry.is_dir():
candidates.append(entry.path)
if len(candidates) > 0:
print(WARN + "warn:" + NC + " ANDROID_NDK_HOME was not set or invalid. multiple " +
"candidates were found however:")
for i, candidate in enumerate(candidates):
print("[" + str(i) + "] " + candidate)
print(INFO + "info:" + NC + " NDK r21e is recommended for this script. Other " +
"NDKs may result in unexpected behavior.")
try:
ndk_path = candidates[int(input("enter the ndk to use [default 0]: "))]
except ValueError:
ndk_path = candidates[0]
else:
print(FATAL + "fatal:" + NC + " the android ndk was not installed at a " +
"recognized location.")
sys.exit(1)
ndk_build_path = os.path.join(ndk_path, "ndk-build")
# Now try to install ExoPlayer.
sh("rm -rf " + exoplayer_path)
sh("rm -rf " + libs_path)
print(INFO + "info:" + NC + " cloning exoplayer...")
sh("git clone https://github.com/OxygenCobalt/ExoPlayer.git " + exoplayer_path)
os.chdir(exoplayer_path)
sh("git checkout auxio")
print(INFO + "info:" + NC + " assembling ffmpeg extension...")
if system == "Linux":
host = "linux-x86_64"
elif system == "Darwin":
host = "darwin-x86_64"
ffmpeg_ext_path = os.path.join(exoplayer_path, "extensions", "ffmpeg", "src", "main")
ffmpeg_ext_aar_path = os.path.join(exoplayer_path, "extensions", "ffmpeg", "buildout", "outputs", "aar", "extension-ffmpeg-release.aar")
ffmpeg_ext_jni_path = os.path.join(exoplayer_path, "extensions", "ffmpeg", "src", "main", "jni")
ffmpeg_src_path = os.path.join(ffmpeg_ext_jni_path, "ffmpeg")
os.chdir(ffmpeg_ext_jni_path)
sh("git clone git://source.ffmpeg.org/ffmpeg ffmpeg")
os.chdir(ffmpeg_src_path)
sh("git checkout release/4.2")
os.chdir(ffmpeg_ext_jni_path)
sh('./build_ffmpeg.sh "' + ffmpeg_ext_path + '" "' + ndk_path + '" "' + host + '" "' + "flac" + '" "' + "alac" + '"')
os.chdir(exoplayer_path)
sh("./gradlew extension-ffmpeg:bundleReleaseAar")
print(INFO + "info:" + NC + " assembling extractor component...")
extractor_aar_path = os.path.join(exoplayer_path, "library", "extractor",
"buildout", "outputs", "aar", "library-extractor-release.aar")
sh("./gradlew library-extractor:bundleReleaseAar")
os.chdir(start_path)
sh("mkdir " + libs_path)
sh("cp " + ffmpeg_ext_aar_path + " " + libs_path)
sh("cp " + extractor_aar_path + " " + libs_path)
print(OK + "success:" + NC + " completed pre-build")

2
settings.gradle
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include ':app'
rootProject.name = "Auxio"
gradle.ext.exoplayerModulePrefix = 'exoplayer-'
apply from: file("ExoPlayer/core_settings.gradle")