https://github.com/lun-4/lovr-rtsp

streaming rtsp to a lovr Image object, courtesy of ffmpeg
https://github.com/lun-4/lovr-rtsp

Last synced: about 1 month ago
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streaming rtsp to a lovr Image object, courtesy of ffmpeg

• Host: GitHub
• URL: https://github.com/lun-4/lovr-rtsp
• Owner: lun-4
• License: mit
• Created: 2022-01-05T03:22:18.000Z (about 3 years ago)
• Default Branch: mistress
• Last Pushed: 2023-10-28T18:07:22.000Z (about 1 year ago)
• Last Synced: 2024-12-01T10:54:18.764Z (about 1 month ago)
• Language: Zig
• Size: 70.3 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# lovr-rtsp

streaming rtsp to a lovr Image object, courtesy of ffmpeg

## how to build

- https://ziglang.org

```sh

git clone https://github.com/lun-4/lovr-rtsp

cd lovr-rtsp

# for linux x86 (uses system's ffmpeg libs, so have it installed):

zig build

cp ./zig-out/lib/librtsp.so.0.0.1 path/to/your/game/or/lovr/folder/rtsp.so

# for android (WILL BREAK ON ANY SYSTEM OTHER THAN MINE. CURSED BUILD PROCESS AHEAD):

#

# will not provide support to android builds of lovr-rtsp at the moment.

# too much bandwidth and curse in this exists at the moment, with lots of

# hardcoded paths. maybe in the future, but not now.

# get allonet repo

# clone to a different folder

# DO NOT DO THIS ON CURRENT DIRECTORY

# allonet is NOT (and will never be) a submodule.

git clone https://github.com/alloverse/allonet path/to/allonet/repository/clone

./copy_vendored_ffmpeg.sh path/to/allonet/repository/clone

# you need android NDK, you can get that via android's commandlinetoools, as shown here

path/to/android/commandlinetools/bin/sdkmanager --sdk_root=/path/to/sdkroot 'platforms;android-28' 'build-tools;28.0.3' 'ndk;21.1.6352462'

# you need to build lovr for android to get luajit. see https://lovr.org/docs/Compiling

zig build -Dandroid=true -Dandroid-ndk=/path/to/sdkroot/ndk/21.1.6352462 -Dluajit=/path/to/lovr/build-android/luajit/src/luajit

# you might have to do this if you're me

cp ./zig-out/lib/librtsp.so.0.0.1 /path/to/lovr/build-android/raw/lib/arm64-v8a/rtsp.so

```

## usage

recommended to run this piece of code in a separate lovr thread,

then communicate the `myImage` object and the rtsp url over lovr's Channel.

```lua

local rtsp = require "rtsp"

local stream = rtsp.open("rtsp://localhost:6969/some_stream")

-- blocks indefinitely in a loop of frame fetching to that myImage

-- assumes myImage is rgb24.

-- this is done because its a very hot path and i would rather have this

-- big hot path be implemented natively instead of having to go through the

-- lua<->native boundary (even though it might be pretty fast thanks to luajit)

rtsp.frameLoop(stream, myImage:getBlob():getPointer())

```