mirror of
https://github.com/owncast/owncast.git
synced 2024-11-21 20:28:15 +03:00
New video transcoder (#27)
* New video transcoder * Set a smaller max muxing size + logging tweaks * No need to return an err since it wiill panic anyway * Use a default encoder preset if one is not supplied * Rename to NewTranscoder. Add comments. * Rename Bitrate to VideoBitrate. Config file changes required with this rename. * Allow overrides of segment length. Allow offline stream to live in a single segment * Append offline state video to existin HLS stream instead of overwriting because players do not like that * Make properties private as they do not need to be exported
This commit is contained in:
Gabe Kangas
GitHub
parent
17eb9da30c
commit
04dc0796d8
12 changed files with 390 additions and 229 deletions
|
|
@ -1,18 +1,25 @@
|
|||
publicHLSPath: webroot/hls
|
||||
privateHLSPath: hls
|
||||
ffmpegPath: /usr/local/bin/ffmpeg
|
||||
ffmpegPath: /usr/bin/ffmpeg
|
||||
webServerPort: 8080
|
||||
enableOfflineImage: true
|
||||
|
||||
videoSettings:
|
||||
chunkLengthInSeconds: 4
|
||||
streamingKey: abc123
|
||||
encoderPreset: superfast # https://trac.ffmpeg.org/wiki/Encode/H.264
|
||||
passthrough: true # Enabling this will ignore the below stream qualities and pass through the same quality that you're sending it
|
||||
offlineImage: doc/logo.png # Is displayed when a stream ends
|
||||
offlineContent: static/offline.m4v # Is displayed when a stream ends
|
||||
|
||||
streamQualities:
|
||||
- bitrate: 1000 # in k
|
||||
# Pass through the exact video and audio that you're streaming.
|
||||
- full:
|
||||
videoPassthrough: true
|
||||
audioPassthrough: true
|
||||
|
||||
# Transcode the video to a lower bitrate and resize
|
||||
# - low:
|
||||
# videoBitrate: 700
|
||||
# scaledWidth: 600
|
||||
# audioPassthrough: true
|
||||
# encoderPreset: superfast
|
||||
|
||||
files:
|
||||
maxNumberInPlaylist: 30
|
||||
|
|
@ -27,4 +34,4 @@ s3:
|
|||
accessKey: ABC12342069
|
||||
secret: lolomgqwtf49583949
|
||||
region: us-west-2
|
||||
bucket: myvideo
|
||||
bucket: myvideo
|
||||
|
|
|
|||
|
|
@ -15,28 +15,41 @@ import (
|
|||
var Config *config
|
||||
|
||||
type config struct {
|
||||
IPFS ipfs `yaml:"ipfs"`
|
||||
PublicHLSPath string `yaml:"publicHLSPath"`
|
||||
PrivateHLSPath string `yaml:"privateHLSPath"`
|
||||
VideoSettings videoSettings `yaml:"videoSettings"`
|
||||
Files files `yaml:"files"`
|
||||
FFMpegPath string `yaml:"ffmpegPath"`
|
||||
WebServerPort int `yaml:"webServerPort"`
|
||||
S3 s3 `yaml:"s3"`
|
||||
EnableOfflineImage bool `yaml:"enableOfflineImage"`
|
||||
IPFS ipfs `yaml:"ipfs"`
|
||||
PublicHLSPath string `yaml:"publicHLSPath"`
|
||||
PrivateHLSPath string `yaml:"privateHLSPath"`
|
||||
VideoSettings videoSettings `yaml:"videoSettings"`
|
||||
Files files `yaml:"files"`
|
||||
FFMpegPath string `yaml:"ffmpegPath"`
|
||||
WebServerPort int `yaml:"webServerPort"`
|
||||
S3 s3 `yaml:"s3"`
|
||||
}
|
||||
|
||||
type videoSettings struct {
|
||||
ChunkLengthInSeconds int `yaml:"chunkLengthInSeconds"`
|
||||
StreamingKey string `yaml:"streamingKey"`
|
||||
EncoderPreset string `yaml:"encoderPreset"`
|
||||
StreamQualities []streamQuality `yaml:"streamQualities"`
|
||||
StreamQualities []StreamQuality `yaml:"streamQualities"`
|
||||
OfflineContent string `yaml:"offlineContent"`
|
||||
EnablePassthrough bool `yaml:"passthrough"`
|
||||
OfflineImage string `yaml:"offlineImage"`
|
||||
}
|
||||
|
||||
type streamQuality struct {
|
||||
Bitrate int `yaml:"bitrate"`
|
||||
type StreamQuality struct {
|
||||
// Enable passthrough to copy the video and/or audio directly from the
|
||||
// incoming stream and disable any transcoding. It will ignore any of
|
||||
// the below settings.
|
||||
IsVideoPassthrough bool `yaml:"videoPassthrough"`
|
||||
IsAudioPassthrough bool `yaml:"audioPassthrough"`
|
||||
|
||||
VideoBitrate int `yaml:"videoBitrate"`
|
||||
AudioBitrate int `yaml:"audioBitrate"`
|
||||
|
||||
// Set only one of these in order to keep your current aspect ratio.
|
||||
// Or set neither to not scale the video.
|
||||
ScaledWidth int `yaml:"scaledWidth"`
|
||||
ScaledHeight int `yaml:"scaledHeight"`
|
||||
|
||||
Framerate int `yaml:"framerate"`
|
||||
EncoderPreset string `yaml:"encoderPreset"`
|
||||
}
|
||||
|
||||
type files struct {
|
||||
|
|
@ -108,10 +121,6 @@ func (c *config) verifySettings() error {
|
|||
return fmt.Errorf("ffmpeg does not exist at: %s", c.FFMpegPath)
|
||||
}
|
||||
|
||||
if c.VideoSettings.EncoderPreset == "" {
|
||||
return errors.New("a video encoder preset is required to be set in the config file")
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -51,7 +51,9 @@ func createInitialOfflineState() error {
|
|||
}
|
||||
}
|
||||
|
||||
return ffmpeg.ShowStreamOfflineState()
|
||||
ffmpeg.ShowStreamOfflineState()
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func resetDirectories() {
|
||||
|
|
|
|||
|
|
@ -1,200 +1,14 @@
|
|||
package ffmpeg
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"math"
|
||||
"os"
|
||||
"os/exec"
|
||||
"path"
|
||||
"strconv"
|
||||
"strings"
|
||||
|
||||
log "github.com/sirupsen/logrus"
|
||||
|
||||
"github.com/gabek/owncast/config"
|
||||
"github.com/gabek/owncast/utils"
|
||||
)
|
||||
|
||||
//ShowStreamOfflineState generates and shows the stream's offline state
|
||||
func ShowStreamOfflineState() error {
|
||||
log.Println("----- Stream offline! Showing offline state!")
|
||||
|
||||
var outputDir = config.Config.PublicHLSPath
|
||||
var variantPlaylistPath = config.Config.PublicHLSPath
|
||||
|
||||
if config.Config.IPFS.Enabled || config.Config.S3.Enabled {
|
||||
outputDir = config.Config.PrivateHLSPath
|
||||
variantPlaylistPath = config.Config.PrivateHLSPath
|
||||
}
|
||||
|
||||
outputDir = path.Join(outputDir, "%v")
|
||||
var variantPlaylistName = path.Join(variantPlaylistPath, "%v", "stream.m3u8")
|
||||
|
||||
var videoMaps = make([]string, 0)
|
||||
var streamMaps = make([]string, 0)
|
||||
var videoMapsString = ""
|
||||
var streamMappingString = ""
|
||||
if config.Config.VideoSettings.EnablePassthrough || len(config.Config.VideoSettings.StreamQualities) == 0 {
|
||||
log.Println("Enabling passthrough video for offline state")
|
||||
videoMapsString = "-b:v 1200k -b:a 128k" // Since we're compositing multiple sources we can't infer bitrate, so pick something reasonable.
|
||||
streamMaps = append(streamMaps, fmt.Sprintf("v:%d", 0))
|
||||
} else {
|
||||
for index, quality := range config.Config.VideoSettings.StreamQualities {
|
||||
maxRate := math.Floor(float64(quality.Bitrate) * 0.8)
|
||||
videoMaps = append(videoMaps, fmt.Sprintf("-map v:0 -c:v:%d libx264 -b:v:%d %dk -maxrate %dk -bufsize %dk", index, index, int(quality.Bitrate), int(maxRate), int(maxRate)))
|
||||
streamMaps = append(streamMaps, fmt.Sprintf("v:%d", index))
|
||||
videoMapsString = strings.Join(videoMaps, " ")
|
||||
}
|
||||
}
|
||||
|
||||
framerate := 25
|
||||
|
||||
streamMappingString = "-var_stream_map \"" + strings.Join(streamMaps, " ") + "\""
|
||||
|
||||
ffmpegFlags := []string{
|
||||
"-hide_banner",
|
||||
// "-stream_loop 100",
|
||||
// "-fflags", "+genpts",
|
||||
"-i", config.Config.VideoSettings.OfflineImage,
|
||||
"-i", "webroot/thumbnail.jpg",
|
||||
"-filter_complex", "\"[0:v]scale=2640:2360[bg];[bg][1:v]overlay=200:250:enable='between(t,0,3)'\"",
|
||||
videoMapsString, // All the different video variants
|
||||
"-f hls",
|
||||
// "-hls_list_size " + strconv.Itoa(config.Config.Files.MaxNumberInPlaylist),
|
||||
"-hls_time 4", // + strconv.Itoa(config.Config.VideoSettings.ChunkLengthInSeconds),
|
||||
"-hls_playlist_type", "event",
|
||||
"-master_pl_name", "stream.m3u8",
|
||||
"-strftime 1",
|
||||
"-use_localtime 1",
|
||||
"-hls_flags temp_file",
|
||||
"-tune", "zerolatency",
|
||||
"-g " + strconv.Itoa(framerate*2), " -keyint_min " + strconv.Itoa(framerate*2), // multiply your output frame rate * 2. For example, if your input is -framerate 30, then use -g 60
|
||||
"-framerate " + strconv.Itoa(framerate),
|
||||
"-preset " + config.Config.VideoSettings.EncoderPreset,
|
||||
"-sc_threshold 0", // don't create key frames on scene change - only according to -g
|
||||
"-profile:v", "main", // Main – for standard definition (SD) to 640×480, High – for high definition (HD) to 1920×1080
|
||||
// "-movflags +faststart",
|
||||
"-pix_fmt yuv420p",
|
||||
|
||||
streamMappingString,
|
||||
"-hls_segment_filename " + path.Join(outputDir, "offline-%s.ts"),
|
||||
// "-s", "720x480", // size
|
||||
variantPlaylistName,
|
||||
}
|
||||
|
||||
ffmpegFlagsString := strings.Join(ffmpegFlags, " ")
|
||||
|
||||
ffmpegCmd := config.Config.FFMpegPath + " " + ffmpegFlagsString
|
||||
|
||||
// log.Println(ffmpegCmd)
|
||||
|
||||
_, err := exec.Command("sh", "-c", ffmpegCmd).Output()
|
||||
|
||||
return err
|
||||
}
|
||||
|
||||
//Start starts the ffmpeg process
|
||||
func Start() error {
|
||||
var outputDir = config.Config.PublicHLSPath
|
||||
var variantPlaylistPath = config.Config.PublicHLSPath
|
||||
|
||||
if config.Config.IPFS.Enabled || config.Config.S3.Enabled {
|
||||
outputDir = config.Config.PrivateHLSPath
|
||||
variantPlaylistPath = config.Config.PrivateHLSPath
|
||||
}
|
||||
|
||||
outputDir = path.Join(outputDir, "%v")
|
||||
var variantPlaylistName = path.Join(variantPlaylistPath, "%v", "stream.m3u8")
|
||||
|
||||
log.Printf("Starting transcoder saving to /%s.", variantPlaylistName)
|
||||
pipePath := utils.GetTemporaryPipePath()
|
||||
|
||||
var videoMaps = make([]string, 0)
|
||||
var streamMaps = make([]string, 0)
|
||||
var audioMaps = make([]string, 0)
|
||||
var videoMapsString = ""
|
||||
var audioMapsString = ""
|
||||
var streamMappingString = ""
|
||||
var profileString = ""
|
||||
|
||||
if config.Config.VideoSettings.EnablePassthrough || len(config.Config.VideoSettings.StreamQualities) == 0 {
|
||||
log.Println("Enabling passthrough video for stream")
|
||||
streamMaps = append(streamMaps, fmt.Sprintf("v:%d,a:%d", 0, 0))
|
||||
videoMaps = append(videoMaps, "-map v:0 -c:v copy")
|
||||
videoMapsString = strings.Join(videoMaps, " ")
|
||||
audioMaps = append(audioMaps, "-map a:0")
|
||||
audioMapsString = strings.Join(audioMaps, " ") + " -c:a copy" // Pass through audio for all the variants, don't reencode
|
||||
|
||||
} else {
|
||||
for index, quality := range config.Config.VideoSettings.StreamQualities {
|
||||
maxRate := math.Floor(float64(quality.Bitrate) * 0.8)
|
||||
videoMaps = append(videoMaps, fmt.Sprintf("-map v:0 -c:v:%d libx264 -b:v:%d %dk -maxrate %dk -bufsize %dk", index, index, int(quality.Bitrate), int(maxRate), int(maxRate)))
|
||||
streamMaps = append(streamMaps, fmt.Sprintf("v:%d,a:%d", index, index))
|
||||
videoMapsString = strings.Join(videoMaps, " ")
|
||||
audioMaps = append(audioMaps, "-map a:0")
|
||||
audioMapsString = strings.Join(audioMaps, " ") + " -c:a copy" // Pass through audio for all the variants, don't reencode
|
||||
profileString = "-profile:v high" // Main – for standard definition (SD) to 640×480, High – for high definition (HD) to 1920×1080
|
||||
}
|
||||
}
|
||||
|
||||
framerate := 25
|
||||
|
||||
streamMappingString = "-var_stream_map \"" + strings.Join(streamMaps, " ") + "\""
|
||||
ffmpegFlags := []string{
|
||||
"-hide_banner",
|
||||
// "-re",
|
||||
"-fflags", "+genpts",
|
||||
"-i pipe:",
|
||||
// "-vf scale=900:-2", // Re-enable in the future with a config to togging resizing?
|
||||
// "-sws_flags fast_bilinear",
|
||||
videoMapsString, // All the different video variants
|
||||
audioMapsString,
|
||||
"-master_pl_name stream.m3u8",
|
||||
"-framerate " + strconv.Itoa(framerate),
|
||||
"-g " + strconv.Itoa(framerate*2), " -keyint_min " + strconv.Itoa(framerate*2), // multiply your output frame rate * 2. For example, if your input is -framerate 30, then use -g 60
|
||||
// "-r 25",
|
||||
"-preset " + config.Config.VideoSettings.EncoderPreset,
|
||||
"-sc_threshold 0", // don't create key frames on scene change - only according to -g
|
||||
profileString,
|
||||
"-movflags +faststart",
|
||||
"-pix_fmt yuv420p",
|
||||
"-f hls",
|
||||
"-hls_list_size " + strconv.Itoa(config.Config.Files.MaxNumberInPlaylist),
|
||||
"-hls_delete_threshold 10", // Keep 10 unreferenced segments on disk before they're deleted.
|
||||
"-hls_time " + strconv.Itoa(config.Config.VideoSettings.ChunkLengthInSeconds),
|
||||
"-strftime 1",
|
||||
"-use_localtime 1",
|
||||
"-hls_segment_filename " + path.Join(outputDir, "stream-%Y%m%d-%s.ts"),
|
||||
"-hls_flags delete_segments+program_date_time+temp_file",
|
||||
"-tune zerolatency",
|
||||
// "-s", "720x480", // size
|
||||
|
||||
streamMappingString,
|
||||
variantPlaylistName,
|
||||
}
|
||||
|
||||
ffmpegFlagsString := strings.Join(ffmpegFlags, " ")
|
||||
|
||||
ffmpegCmd := "cat " + pipePath + " | " + config.Config.FFMpegPath + " " + ffmpegFlagsString
|
||||
|
||||
// fmt.Println(ffmpegCmd)
|
||||
|
||||
_, err := exec.Command("sh", "-c", ffmpegCmd).Output()
|
||||
|
||||
return err
|
||||
}
|
||||
|
||||
//WritePlaylist writes the playlist to disk
|
||||
func WritePlaylist(data string, filePath string) error {
|
||||
f, err := os.Create(filePath)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer f.Close()
|
||||
|
||||
if _, err := f.WriteString(data); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return nil
|
||||
func ShowStreamOfflineState() {
|
||||
transcoder := NewTranscoder()
|
||||
transcoder.SetSegmentLength(10)
|
||||
transcoder.SetAppendToStream(true)
|
||||
transcoder.SetInput(config.Config.VideoSettings.OfflineContent)
|
||||
transcoder.Start()
|
||||
}
|
||||
|
|
|
|||
315
core/ffmpeg/transcoder.go
Normal file
315
core/ffmpeg/transcoder.go
Normal file
|
|
@ -0,0 +1,315 @@
|
|||
package ffmpeg
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os/exec"
|
||||
"path"
|
||||
"strconv"
|
||||
"strings"
|
||||
|
||||
log "github.com/sirupsen/logrus"
|
||||
|
||||
"github.com/gabek/owncast/config"
|
||||
"github.com/gabek/owncast/utils"
|
||||
)
|
||||
|
||||
// Transcoder is a single instance of a video transcoder
|
||||
type Transcoder struct {
|
||||
input string
|
||||
segmentOutputPath string
|
||||
playlistOutputPath string
|
||||
variants []HLSVariant
|
||||
hlsPlaylistLength int
|
||||
segmentLengthSeconds int
|
||||
appendToStream bool
|
||||
}
|
||||
|
||||
// HLSVariant is a combination of settings that results in a single HLS stream
|
||||
type HLSVariant struct {
|
||||
index int
|
||||
|
||||
videoSize VideoSize // Resizes the video via scaling
|
||||
framerate int // The output framerate
|
||||
videoBitrate string // The output bitrate
|
||||
isVideoPassthrough bool // Override all settings and just copy the video stream
|
||||
|
||||
audioBitrate string // The audio bitrate
|
||||
isAudioPassthrough bool // Override all settings and just copy the audio stream
|
||||
|
||||
encoderPreset string // A collection of automatic settings for the encoder. https://trac.ffmpeg.org/wiki/Encode/H.264#crf
|
||||
}
|
||||
|
||||
// VideoSize is the scaled size of the video output
|
||||
type VideoSize struct {
|
||||
Width int
|
||||
Height int
|
||||
}
|
||||
|
||||
// getString returns a WxH formatted getString for scaling video output
|
||||
func (v *VideoSize) getString() string {
|
||||
widthString := strconv.Itoa(v.Width)
|
||||
heightString := strconv.Itoa(v.Height)
|
||||
|
||||
if widthString != "0" && heightString != "0" {
|
||||
return widthString + ":" + heightString
|
||||
} else if widthString != "0" {
|
||||
return widthString + ":-2"
|
||||
} else if heightString != "0" {
|
||||
return "-2:" + heightString
|
||||
}
|
||||
|
||||
return ""
|
||||
}
|
||||
|
||||
// Start will execute the transcoding process with the settings previously set.
|
||||
func (t *Transcoder) Start() {
|
||||
command := t.getString()
|
||||
|
||||
log.Printf("Video transcoder started with %d stream variants.", len(t.variants))
|
||||
|
||||
_, err := exec.Command("sh", "-c", command).Output()
|
||||
if err != nil {
|
||||
log.Panicln(err, command)
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
func (t *Transcoder) getString() string {
|
||||
hlsOptionFlags := []string{
|
||||
"delete_segments",
|
||||
"program_date_time",
|
||||
"temp_file",
|
||||
}
|
||||
|
||||
if t.appendToStream {
|
||||
hlsOptionFlags = append(hlsOptionFlags, "append_list")
|
||||
}
|
||||
|
||||
ffmpegFlags := []string{
|
||||
"cat", t.input, "|",
|
||||
config.Config.FFMpegPath,
|
||||
"-hide_banner",
|
||||
"-i pipe:",
|
||||
t.getVariantsString(),
|
||||
|
||||
// HLS Output
|
||||
"-f", "hls",
|
||||
"-hls_time", strconv.Itoa(t.segmentLengthSeconds), // Length of each segment
|
||||
"-hls_list_size", strconv.Itoa(config.Config.Files.MaxNumberInPlaylist), // Max # in variant playlist
|
||||
"-hls_delete_threshold", "10", // Start deleting files after hls_list_size + 10
|
||||
"-hls_flags", strings.Join(hlsOptionFlags, "+"), // Specific options in HLS generation
|
||||
|
||||
// Video settings
|
||||
"-tune", "zerolatency", // Option used for good for fast encoding and low-latency streaming (always includes iframes in each segment)
|
||||
// "-profile:v", "high", // Main – for standard definition (SD) to 640×480, High – for high definition (HD) to 1920×1080
|
||||
"-sc_threshold", "0", // Disable scene change detection for creating segments
|
||||
|
||||
// Filenames
|
||||
"-master_pl_name", "stream.m3u8",
|
||||
"-strftime 1", // Support the use of strftime in filenames
|
||||
"-hls_segment_filename", path.Join(t.segmentOutputPath, "/%v/stream-%s.ts"), // Each segment's filename
|
||||
"-max_muxing_queue_size", "400", // Workaround for Too many packets error: https://trac.ffmpeg.org/ticket/6375?cversion=0
|
||||
path.Join(t.segmentOutputPath, "/%v/stream.m3u8"), // Each variant's playlist
|
||||
}
|
||||
|
||||
return strings.Join(ffmpegFlags, " ")
|
||||
}
|
||||
|
||||
func getVariantFromConfigQuality(quality config.StreamQuality, index int) HLSVariant {
|
||||
variant := HLSVariant{}
|
||||
variant.index = index
|
||||
variant.isAudioPassthrough = quality.IsAudioPassthrough
|
||||
variant.isVideoPassthrough = quality.IsVideoPassthrough
|
||||
|
||||
// If no audio bitrate is specified then we pass through original audio
|
||||
if quality.AudioBitrate == 0 {
|
||||
variant.isAudioPassthrough = true
|
||||
}
|
||||
|
||||
if quality.VideoBitrate == 0 {
|
||||
variant.isVideoPassthrough = true
|
||||
}
|
||||
|
||||
// If the video is being passed through then
|
||||
// don't continue to set options on the variant.
|
||||
if variant.isVideoPassthrough {
|
||||
return variant
|
||||
}
|
||||
|
||||
// Set a default, reasonable preset if one is not provided.
|
||||
// "superfast" and "ultrafast" are generally not recommended since they look bad.
|
||||
// https://trac.ffmpeg.org/wiki/Encode/H.264
|
||||
if quality.EncoderPreset != "" {
|
||||
variant.encoderPreset = quality.EncoderPreset
|
||||
} else {
|
||||
variant.encoderPreset = "veryfast"
|
||||
}
|
||||
|
||||
variant.SetVideoBitrate(strconv.Itoa(quality.VideoBitrate) + "k")
|
||||
variant.SetAudioBitrate(strconv.Itoa(quality.AudioBitrate) + "k")
|
||||
variant.SetVideoScalingWidth(quality.ScaledWidth)
|
||||
variant.SetVideoScalingHeight(quality.ScaledHeight)
|
||||
variant.SetVideoFramerate(quality.Framerate)
|
||||
|
||||
return variant
|
||||
}
|
||||
|
||||
// NewTranscoder will return a new Transcoder, populated by the config
|
||||
func NewTranscoder() Transcoder {
|
||||
transcoder := new(Transcoder)
|
||||
|
||||
var outputPath string
|
||||
if config.Config.S3.Enabled || config.Config.IPFS.Enabled {
|
||||
// Segments are not available via the local HTTP server
|
||||
outputPath = config.Config.PrivateHLSPath
|
||||
} else {
|
||||
// Segments are available via the local HTTP server
|
||||
outputPath = config.Config.PublicHLSPath
|
||||
}
|
||||
|
||||
transcoder.segmentOutputPath = outputPath
|
||||
// Playlists are available via the local HTTP server
|
||||
transcoder.playlistOutputPath = config.Config.PublicHLSPath
|
||||
|
||||
transcoder.input = utils.GetTemporaryPipePath()
|
||||
transcoder.segmentLengthSeconds = config.Config.VideoSettings.ChunkLengthInSeconds
|
||||
|
||||
for index, quality := range config.Config.VideoSettings.StreamQualities {
|
||||
variant := getVariantFromConfigQuality(quality, index)
|
||||
transcoder.AddVariant(variant)
|
||||
}
|
||||
|
||||
return *transcoder
|
||||
}
|
||||
|
||||
// Uses `map` https://www.ffmpeg.org/ffmpeg-all.html#Stream-specifiers-1 https://www.ffmpeg.org/ffmpeg-all.html#Advanced-options
|
||||
func (v *HLSVariant) getVariantString() string {
|
||||
variantEncoderCommands := []string{
|
||||
v.getVideoQualityString(),
|
||||
v.getAudioQualityString(),
|
||||
}
|
||||
|
||||
if v.videoSize.Width != 0 || v.videoSize.Height != 0 {
|
||||
variantEncoderCommands = append(variantEncoderCommands, v.getScalingString())
|
||||
}
|
||||
|
||||
if v.framerate != 0 {
|
||||
variantEncoderCommands = append(variantEncoderCommands, fmt.Sprintf("-r %d", v.framerate))
|
||||
// multiply your output frame rate * 2. For example, if your input is -framerate 30, then use -g 60
|
||||
variantEncoderCommands = append(variantEncoderCommands, "-g "+strconv.Itoa(v.framerate*2))
|
||||
variantEncoderCommands = append(variantEncoderCommands, "-keyint_min "+strconv.Itoa(v.framerate*2))
|
||||
}
|
||||
|
||||
if v.encoderPreset != "" {
|
||||
variantEncoderCommands = append(variantEncoderCommands, fmt.Sprintf("-preset %s", v.encoderPreset))
|
||||
}
|
||||
|
||||
return strings.Join(variantEncoderCommands, " ")
|
||||
}
|
||||
|
||||
// Get the command flags for the variants
|
||||
func (t *Transcoder) getVariantsString() string {
|
||||
var variantsCommandFlags = ""
|
||||
var variantsStreamMaps = " -var_stream_map \""
|
||||
|
||||
for _, variant := range t.variants {
|
||||
variantsCommandFlags = variantsCommandFlags + " " + variant.getVariantString()
|
||||
variantsStreamMaps = variantsStreamMaps + fmt.Sprintf("v:%d,a:%d ", variant.index, variant.index)
|
||||
}
|
||||
variantsCommandFlags = variantsCommandFlags + " " + variantsStreamMaps + "\""
|
||||
|
||||
return variantsCommandFlags
|
||||
}
|
||||
|
||||
// Video Scaling
|
||||
// https://trac.ffmpeg.org/wiki/Scaling
|
||||
// If we'd like to keep the aspect ratio, we need to specify only one component, either width or height.
|
||||
// Some codecs require the size of width and height to be a multiple of n. You can achieve this by setting the width or height to -n.
|
||||
|
||||
// SetVideoScalingWidth will set the scaled video width of this variant
|
||||
func (v *HLSVariant) SetVideoScalingWidth(width int) {
|
||||
v.videoSize.Width = width
|
||||
}
|
||||
|
||||
// SetVideoScalingHeight will set the scaled video height of this variant
|
||||
func (v *HLSVariant) SetVideoScalingHeight(height int) {
|
||||
v.videoSize.Height = height
|
||||
}
|
||||
|
||||
func (v *HLSVariant) getScalingString() string {
|
||||
scalingAlgorithm := "bilinear"
|
||||
return fmt.Sprintf("-filter:v:%d \"scale=%s\" -sws_flags %s", v.index, v.videoSize.getString(), scalingAlgorithm)
|
||||
}
|
||||
|
||||
// Video Quality
|
||||
|
||||
// SetVideoBitrate will set the output bitrate of this variant's video
|
||||
func (v *HLSVariant) SetVideoBitrate(bitrate string) {
|
||||
v.videoBitrate = bitrate
|
||||
}
|
||||
|
||||
func (v *HLSVariant) getVideoQualityString() string {
|
||||
if v.isVideoPassthrough {
|
||||
return fmt.Sprintf("-map v:0 -c:v:%d copy", v.index)
|
||||
}
|
||||
|
||||
encoderCodec := "libx264"
|
||||
return fmt.Sprintf("-map v:0 -c:v:%d %s -b:v:%d %s", v.index, encoderCodec, v.index, v.videoBitrate)
|
||||
}
|
||||
|
||||
// SetVideoFramerate will set the output framerate of this variant's video
|
||||
func (v *HLSVariant) SetVideoFramerate(framerate int) {
|
||||
v.framerate = framerate
|
||||
}
|
||||
|
||||
// SetEncoderPreset will set the video encoder preset of this variant
|
||||
func (v *HLSVariant) SetEncoderPreset(preset string) {
|
||||
v.encoderPreset = preset
|
||||
}
|
||||
|
||||
// Audio Quality
|
||||
|
||||
// SetAudioBitrate will set the output framerate of this variant's audio
|
||||
func (v *HLSVariant) SetAudioBitrate(bitrate string) {
|
||||
v.audioBitrate = bitrate
|
||||
}
|
||||
|
||||
func (v *HLSVariant) getAudioQualityString() string {
|
||||
if v.isAudioPassthrough {
|
||||
return fmt.Sprintf("-map a:0 -c:a:%d copy", v.index)
|
||||
}
|
||||
|
||||
encoderCodec := "libfdk_aac"
|
||||
return fmt.Sprintf("-map a:0 -c:a:%d %s -profile:a aac_he -b:a:%d %s", v.index, encoderCodec, v.index, v.audioBitrate)
|
||||
}
|
||||
|
||||
// AddVariant adds a new HLS variant to include in the output
|
||||
func (t *Transcoder) AddVariant(variant HLSVariant) {
|
||||
t.variants = append(t.variants, variant)
|
||||
}
|
||||
|
||||
// SetInput sets the input stream on the filesystem
|
||||
func (t *Transcoder) SetInput(input string) {
|
||||
t.input = input
|
||||
}
|
||||
|
||||
// SetOutputPath sets the root directory that should include playlists and video segments
|
||||
func (t *Transcoder) SetOutputPath(output string) {
|
||||
t.segmentOutputPath = output
|
||||
}
|
||||
|
||||
// SetHLSPlaylistLength will set the max number of items in a HLS variant's playlist
|
||||
func (t *Transcoder) SetHLSPlaylistLength(length int) {
|
||||
t.hlsPlaylistLength = length
|
||||
}
|
||||
|
||||
// SetSegmentLength Specifies the number of seconds each segment should be
|
||||
func (t *Transcoder) SetSegmentLength(seconds int) {
|
||||
t.segmentLengthSeconds = seconds
|
||||
}
|
||||
|
||||
// SetAppendToStream enables appending to the HLS stream instead of overwriting
|
||||
func (t *Transcoder) SetAppendToStream(append bool) {
|
||||
t.appendToStream = append
|
||||
}
|
||||
|
|
@ -13,7 +13,6 @@ import (
|
|||
"github.com/radovskyb/watcher"
|
||||
|
||||
"github.com/gabek/owncast/config"
|
||||
"github.com/gabek/owncast/core/ffmpeg"
|
||||
"github.com/gabek/owncast/models"
|
||||
"github.com/gabek/owncast/utils"
|
||||
)
|
||||
|
|
@ -159,5 +158,5 @@ func updateVariantPlaylist(fullPath string) error {
|
|||
|
||||
playlistString = _storage.GenerateRemotePlaylist(playlistString, variant)
|
||||
|
||||
return ffmpeg.WritePlaylist(playlistString, path.Join(config.Config.PublicHLSPath, relativePath))
|
||||
return WritePlaylist(playlistString, path.Join(config.Config.PublicHLSPath, relativePath))
|
||||
}
|
||||
|
|
|
|||
18
core/playlist/writer.go
Normal file
18
core/playlist/writer.go
Normal file
|
|
@ -0,0 +1,18 @@
|
|||
package playlist
|
||||
|
||||
import "os"
|
||||
|
||||
//WritePlaylist writes the playlist to disk
|
||||
func WritePlaylist(data string, filePath string) error {
|
||||
f, err := os.Create(filePath)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer f.Close()
|
||||
|
||||
if _, err := f.WriteString(data); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
|
@ -76,8 +76,8 @@ func (h *Handler) OnPublish(timestamp uint32, cmd *rtmpmsg.NetStreamPublish) err
|
|||
}
|
||||
h.flvEnc = enc
|
||||
|
||||
//TODO: why is this turned into a goroutine?
|
||||
go ffmpeg.Start()
|
||||
transcoder := ffmpeg.NewTranscoder()
|
||||
go transcoder.Start()
|
||||
|
||||
_isConnected = true
|
||||
core.SetStreamAsConnected()
|
||||
|
|
|
|||
|
|
@ -47,7 +47,5 @@ func SetStreamAsDisconnected() {
|
|||
_stats.StreamConnected = false
|
||||
_stats.LastDisconnectTime = time.Now()
|
||||
|
||||
if config.Config.EnableOfflineImage {
|
||||
ffmpeg.ShowStreamOfflineState()
|
||||
}
|
||||
ffmpeg.ShowStreamOfflineState()
|
||||
}
|
||||
|
|
|
|||
|
|
@ -39,15 +39,14 @@ build() {
|
|||
|
||||
mkdir -p dist/${NAME}
|
||||
mkdir -p dist/${NAME}/webroot/static
|
||||
mkdir -p dist/${NAME}/static
|
||||
|
||||
# Default files
|
||||
cp config-example.yaml dist/${NAME}/config.yaml
|
||||
cp webroot/static/content-example.md dist/${NAME}/webroot/static/content.md
|
||||
cp webroot/img/logo.png dist/${NAME}/static/logo.png
|
||||
|
||||
cp -R webroot/ dist/${NAME}/webroot/
|
||||
cp -R doc/ dist/${NAME}/doc/
|
||||
cp -R static/ dist/${NAME}/static
|
||||
cp README.md dist/${NAME}
|
||||
|
||||
env CGO_ENABLED=0 GOOS=$OS GOARCH=$ARCH go build -ldflags "-X main.GitCommit=$GIT_COMMIT -X main.BuildVersion=$VERSION -X main.BuildType=$NAME" -a -o dist/$NAME/owncast
|
||||
|
|
|
|||
Binary file not shown.
|
|
@ -1,5 +1,5 @@
|
|||
// const streamURL = '/hls/stream.m3u8';
|
||||
const streamURL = 'https://goth.land/hls/stream.m3u8'; // Uncomment me to point to remote video
|
||||
const streamURL = '/hls/stream.m3u8';
|
||||
// const streamURL = 'https://goth.land/hls/stream.m3u8'; // Uncomment me to point to remote video
|
||||
|
||||
// style hackings
|
||||
window.VIDEOJS_NO_DYNAMIC_STYLE = true;
|
||||
|
|
|
|||
Loading…
Reference in a new issue