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Options.Audio adds all streams

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This commit is contained in:
Alex Eidt 2022-09-15 13:30:13 -07:00
parent c9bc141f27
commit bbbb23041a
4 changed files with 81 additions and 107 deletions
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README.md
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@ -28,11 +28,11 @@ Height() int
Depth() int
Bitrate() int
Frames() int
Stream() int
Duration() float64
FPS() float64
Codec() string
AudioCodec() string
Stream() int
HasAudio() bool
FrameBuffer() []byte
MetaData() map[string]string
SetFrameBuffer(buffer []byte) error
@ -71,6 +71,7 @@ The `VideoWriter` is used to write frames to a video file. The only required par
vidio.NewVideoWriter(filename string, width, height int, options *vidio.Options) (*vidio.VideoWriter, error)
FileName() string
Audio() string
Width() int
Height() int
Bitrate() int
@ -81,7 +82,6 @@ FPS() float64
Quality() float64
Codec() string
Format() string
AudioCodec() string
Write(frame []byte) error
Close()
@ -89,19 +89,22 @@ Close()
```go
type Options struct {
Bitrate int // Bitrate.
Loop int // For GIFs only. -1=no loop, 0=infinite loop, >0=number of loops.
Delay int // Delay for final frame of GIFs.
Macro int // Macroblock size for determining how to resize frames for codecs.
FPS float64 // Frames per second for output video.
Quality float64 // If bitrate not given, use quality instead. Must be between 0 and 1. 0:best, 1:worst.
Codec string // Codec for video.
Format string // Pixel Format for video. Default "rgb24".
Audio string // File path for audio. If no audio, audio="".
AudioCodec string // Codec for audio.
Bitrate int // Bitrate.
Loop int // For GIFs only. -1=no loop, 0=infinite loop, >0=number of loops.
Delay int // Delay for final frame of GIFs.
Macro int // Macroblock size for determining how to resize frames for codecs.
FPS float64 // Frames per second for output video.
Quality float64 // If bitrate not given, use quality instead. Must be between 0 and 1. 0:best, 1:worst.
Codec string // Codec for video.
Format string // Pixel Format for video. Default "rgb24".
Audio string // File path for extra stream data.
}
```
The `Options.Audio` parameter is intended for users who wish to process a video stream and keep the audio. Instead of having to process the video and store in a file and then combine with the original audio later, the user can simply pass in the original file path via the `Options.Video` parameter. This will combine the video with all other streams in the given file (Audio, Subtitle, Data, and Attachments Streams) and will cut all streams to be the same length. Note that `vidio` is not a audio/video editing library.
Note that this means that adding extra stream data from a file will only work if the filename being written to is a container format.
## Images
Vidio provides some convenience functions for reading and writing to images using an array of bytes. Currently, only `png` and `jpeg` formats are supported. When reading images, an optional `buffer` can be passed in to avoid array reallocation.
@ -121,8 +124,8 @@ options := vidio.Options{
FPS: video.FPS(),
Bitrate: video.Bitrate(),
}
if video.AudioCodec() != "" {
options.Audio = "input.mp4"
if video.HasAudio() {
options.Audio = video.FileName()
}
writer, _ := vidio.NewVideoWriter("output.mp4", video.Width(), video.Height(), &options)