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Add support multiple transcoding for ffmpeg

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This commit is contained in:
Alexey Khit
2022-11-14 02:26:07 +03:00
parent a4eab1944a
commit dd55c03dc2
1 changed files with 61 additions and 36 deletions
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73
cmd/ffmpeg/ffmpeg.go
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@@ -8,6 +8,7 @@ import (
"github.com/AlexxIT/go2rtc/cmd/streams"
"github.com/AlexxIT/go2rtc/pkg/streamer"
"net/url"
"strconv"
"strings"
)
@@ -34,19 +35,20 @@ func Init() {
// `-tune zerolatency` - for minimal latency
// `-profile main -level 4.1` - most used streaming profile
// `-pix_fmt yuv420p` - if input pix format 4:2:2
"h264": "-codec:v libx264 -g 30 -preset superfast -tune zerolatency -profile:v main -level 4.1 -pix_fmt yuv420p",
"h264/ultra": "-codec:v libx264 -g 30 -preset ultrafast -tune zerolatency",
"h264/high": "-codec:v libx264 -g 30 -preset superfast -tune zerolatency",
"h265": "-codec:v libx265 -g 30 -preset ultrafast -tune zerolatency",
"mjpeg": "-codec:v mjpeg -force_duplicated_matrix 1 -huffman 0 -pix_fmt yuvj420p",
"opus": "-codec:a libopus -ar 48000 -ac 2",
"pcmu": "-codec:a pcm_mulaw -ar 8000 -ac 1",
"pcmu/16000": "-codec:a pcm_mulaw -ar 16000 -ac 1",
"pcmu/48000": "-codec:a pcm_mulaw -ar 48000 -ac 1",
"pcma": "-codec:a pcm_alaw -ar 8000 -ac 1",
"pcma/16000": "-codec:a pcm_alaw -ar 16000 -ac 1",
"pcma/48000": "-codec:a pcm_alaw -ar 48000 -ac 1",
"aac/16000": "-codec:a aac -ar 16000 -ac 1",
"h264": "-c:v libx264 -g:v 30 -preset:v superfast -tune:v zerolatency -profile:v main -level:v 4.1 -pix_fmt:v yuv420p",
"h264/ultra": "-c:v libx264 -g:v 30 -preset:v ultrafast -tune:v zerolatency",
"h264/high": "-c:v libx264 -g:v 30 -preset:v superfast -tune:v zerolatency",
"h265": "-c:v libx265 -g:v 30 -preset:v ultrafast -tune:v zerolatency",
"mjpeg": "-c:v mjpeg -force_duplicated_matrix:v 1 -huffman:v 0 -pix_fmt:v yuvj420p",
"opus": "-c:a libopus -ar:a 48000 -ac:a 2",
"pcmu": "-c:a pcm_mulaw -ar:a 8000 -ac:a 1",
"pcmu/16000": "-c:a pcm_mulaw -ar:a 16000 -ac:a 1",
"pcmu/48000": "-c:a pcm_mulaw -ar:a 48000 -ac:a 1",
"pcma": "-c:a pcm_alaw -ar:a 8000 -ac:a 1",
"pcma/16000": "-c:a pcm_alaw -ar:a 16000 -ac:a 1",
"pcma/48000": "-c:a pcm_alaw -ar:a 48000 -ac:a 1",
"aac": "-c:a aac", // keep sample rate and channels
"aac/16000": "-c:a aac -ar:a 16000 -ac:a 1",
}
app.LoadConfig(&cfg)
@@ -64,6 +66,7 @@ func Init() {
var query url.Values
var queryVideo, queryAudio bool
if i := strings.IndexByte(s, '#'); i > 0 {
query = parseQuery(s[i+1:])
queryVideo = query["video"] != nil
@@ -138,30 +141,52 @@ func Init() {
break
}
// TODO: multiple codecs via -map
// s += fmt.Sprintf(" -map 0:v:0 -c:v:%d copy", i)
switch len(query["video"]) {
case 0:
s += " -vn"
case 1:
if len(query["audio"]) > 1 {
s += " -map 0:v:0"
}
for _, video := range query["video"] {
if video == "copy" {
s += " -codec:v copy"
s += " -c:v copy"
} else {
s += " " + tpl[video]
}
}
default:
for i, video := range query["video"] {
if video == "copy" {
s += " -map 0:v:0 -c:v:" + strconv.Itoa(i) + " copy"
} else {
s += " -map 0:v:0 " + strings.ReplaceAll(tpl[video], ":v ", ":v:"+strconv.Itoa(i)+" ")
}
}
}
switch len(query["audio"]) {
case 0:
s += " -an"
case 1:
if len(query["video"]) > 1 {
s += " -map 0:a:0"
}
for _, audio := range query["audio"] {
if audio == "copy" {
s += " -codec:a copy"
s += " -c:a copy"
} else {
s += " " + tpl[audio]
}
}
switch {
case queryVideo && !queryAudio:
s += " -an"
case queryAudio && !queryVideo:
s += " -vn"
default:
for i, audio := range query["audio"] {
if audio == "copy" {
s += " -map 0:a:0 -c:a:" + strconv.Itoa(i) + " copy"
} else {
s += " -map 0:a:0 " + strings.ReplaceAll(tpl[audio], ":a ", ":a:"+strconv.Itoa(i)+" ")
}
}
}
} else {
s += " -c copy"