99 lines
2.5 KiB
Go
99 lines
2.5 KiB
Go
package config
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import (
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"fmt"
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"github.com/photoprism/photoprism/internal/ffmpeg"
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"github.com/photoprism/photoprism/internal/thumb"
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)
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// FFmpegBin returns the ffmpeg executable file name.
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func (c *Config) FFmpegBin() string {
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return findBin(c.options.FFmpegBin, "ffmpeg")
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}
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// FFmpegEnabled checks if FFmpeg is enabled for video transcoding.
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func (c *Config) FFmpegEnabled() bool {
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return !c.DisableFFmpeg()
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}
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// FFmpegEncoder returns the FFmpeg AVC encoder name.
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func (c *Config) FFmpegEncoder() ffmpeg.AvcEncoder {
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if c.options.FFmpegEncoder == "" || c.options.FFmpegEncoder == ffmpeg.SoftwareEncoder.String() {
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return ffmpeg.SoftwareEncoder
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}
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return ffmpeg.FindEncoder(c.options.FFmpegEncoder)
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}
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// FFmpegSize returns the maximum ffmpeg video encoding size in pixels (720-7680).
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func (c *Config) FFmpegSize() int {
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return thumb.VideoSize(c.options.FFmpegSize).Width
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}
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// FFmpegBitrate returns the ffmpeg bitrate limit in MBit/s.
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func (c *Config) FFmpegBitrate() int {
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switch {
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case c.options.FFmpegBitrate <= 0:
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return 50
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case c.options.FFmpegBitrate >= 960:
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return 960
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default:
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return c.options.FFmpegBitrate
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}
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}
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// FFmpegBitrateExceeded tests if the ffmpeg bitrate limit is exceeded.
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func (c *Config) FFmpegBitrateExceeded(mbit float64) bool {
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if mbit <= 0 {
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return false
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} else if max := c.FFmpegBitrate(); max <= 0 {
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return false
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} else {
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return mbit > float64(max)
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}
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}
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// FFmpegMapVideo returns the video streams to be transcoded as string.
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func (c *Config) FFmpegMapVideo() string {
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if c.options.FFmpegMapVideo == "" {
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return ffmpeg.MapVideoDefault
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}
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return c.options.FFmpegMapVideo
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}
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// FFmpegMapAudio returns the audio streams to be transcoded as string.
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func (c *Config) FFmpegMapAudio() string {
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if c.options.FFmpegMapAudio == "" {
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return ffmpeg.MapAudioDefault
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}
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return c.options.FFmpegMapAudio
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}
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// FFmpegOptions returns the FFmpeg transcoding options.
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func (c *Config) FFmpegOptions(encoder ffmpeg.AvcEncoder, bitrate string) (ffmpeg.Options, error) {
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// Transcode all other formats with FFmpeg.
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opt := ffmpeg.Options{
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Bin: c.FFmpegBin(),
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Encoder: encoder,
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Size: c.FFmpegSize(),
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Bitrate: bitrate,
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MapVideo: c.FFmpegMapVideo(),
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MapAudio: c.FFmpegMapAudio(),
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}
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// Check
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if opt.Bin == "" {
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return opt, fmt.Errorf("ffmpeg is not installed")
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} else if c.DisableFFmpeg() {
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return opt, fmt.Errorf("ffmpeg is disabled")
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} else if bitrate == "" {
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return opt, fmt.Errorf("bitrate must not be empty")
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} else if encoder.String() == "" {
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return opt, fmt.Errorf("encoder must not be empty")
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}
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return opt, nil
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}
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