README
¶
lyrics818 format (l8f)
a lyrics video format written in golang
Features
- Two video tracks: one for laptop size and the other for mobile size
- Written in Golang
Description of the Format
The general description looks like this:
{header_length}
{header}
{audio}
{laptop_frames_lump}
{mobile_frames_lump}
This format uses a framerate of 1
Description of {header} section
The {header} section made up of some subsections. It looks like this
laptop_unique_frames:
{number}: {size}
{number}: {size}
::
laptop_frames:
{frame_number}: {unique_frame_number}
{frame_number}: {unique_frame_number}
::
mobile_unique_frames:
{number}: {size}
{number}: {size}
::
mobile_frames:
{frame_number}: {unique_frame_number}
{frame_number}: {unique_frame_number}
::
binary:
audio: {audio_size_bytes}
laptop_frames_lump: {laptop_video_size_bytes}
mobile_frames_lump: {mobile_video_size_bytes}
::
Description of the {audio} section
The {audio} section takes mp3 data and writes it unparsed to the video format
Description of the {laptop_frames_lump} / {mobile_frames_lump} sections
The {video} section is made up of a lump file of unique frames.
The unique frames must be of png format
Documentation
¶
Index ¶
- func GetVideoLength(inVideoPath string) (int, error)
- func MakeL8F(inFramesLaptopDirectory, inFramesMobileDirectory, inAudioFile string, ...) error
- func ReadAudio(inVideoPath string) ([]byte, error)
- func ReadLaptopFrame(inVideoPath string, seconds int) (*image.Image, error)
- func ReadMobileFrame(inVideoPath string, seconds int) (*image.Image, error)
- type MakeVideoLumpTemp
- type UniqueFrameDetails
- type VideoHeader
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func GetVideoLength ¶
This checks the length of the video using the frames itself It doesn't check against the audio data embedded in it
func MakeL8F ¶
func MakeL8F(inFramesLaptopDirectory, inFramesMobileDirectory, inAudioFile string, meta map[string]string, tmpVideoDirectory, outFilePath string) error
MakeL8F is good for videos with a lot of stills eg. lyrics videos with a single background. the inFramesDirectory must contain png files numbered from 1.png upwards the framerate must be stored in the **meta** as a string
func ReadLaptopFrame ¶
Read frame for 1 seconds, starting from the 'seconds' parameter 'seconds' parameter starts from 1
Types ¶
type MakeVideoLumpTemp ¶
type MakeVideoLumpTemp struct {
UniqueFrames []UniqueFrameDetails
FramesPointerToUniqueFrames map[int]int
}
type UniqueFrameDetails ¶
type VideoHeader ¶
type VideoHeader struct {
Meta map[string]string
LaptopUniqueFrames [][]int
LaptopFrames map[int]int
MobileUniqueFrames [][]int
MobileFrames map[int]int
AudioSize int
LaptopVideoSize int
MobileVideoSize int
}
func ReadHeaderFromVideo ¶
func ReadHeaderFromVideo(inVideoPath string) (VideoHeader, error)
Source Files