feat(video): first steps in supporting more modern versions of ffmpeg

controllers/admin/serverConfig.go

@@ -111,7 +111,7 @@ type serverConfigAdminResponse struct {
 	VideoServingEndpoint    string                      `json:"videoServingEndpoint"`
 	S3                      models.S3                   `json:"s3"`
 	Federation              federationConfigResponse    `json:"federation"`
-	SupportedCodecs         []string                    `json:"supportedCodecs"`
+	SupportedCodecs         []models.VideoCodec         `json:"supportedCodecs"`
 	ExternalActions         []models.ExternalAction     `json:"externalActions"`
 	ForbiddenUsernames      []string                    `json:"forbiddenUsernames"`
 	SuggestedUsernames      []string                    `json:"suggestedUsernames"`

core/transcoder/codecs.go

@@ -7,6 +7,7 @@ import (
 	"os/exec"
 	"strings"
 
+	"github.com/owncast/owncast/models"
 	log "github.com/sirupsen/logrus"
 )
 
@@ -14,6 +15,7 @@ import (
 type Codec interface {
 	Name() string
 	DisplayName() string
+	Key() string
 	GlobalFlags() string
 	PixelFormat() string
 	Scaler() string
@@ -21,17 +23,18 @@ type Codec interface {
 	ExtraFilters() string
 	VariantFlags(v *HLSVariant) string
 	GetPresetForLevel(l int) string
+	GetRepresentation() models.VideoCodec
 }
 
 var supportedCodecs = map[string]string{
 	(&Libx264Codec{}).Name():      "libx264",
 	(&OmxCodec{}).Name():          "omx",
-	(&VaapiCodec{}).Name():        "vaapi",
+	(&VaapiLegacyCodec{}).Name():  "vaapi (legacy)",
+	(&VaapiCodec{}).Name():        "vaapi (ffmpeg 5+)",
 	(&NvencCodec{}).Name():        "NVIDIA nvenc",
 	(&VideoToolboxCodec{}).Name(): "videotoolbox",
 }
 
-// Libx264Codec represents an instance of the Libx264 Codec.
 type Libx264Codec struct{}
 
 // Name returns the codec name.
@@ -41,7 +44,12 @@ func (c *Libx264Codec) Name() string {
 
 // DisplayName returns the human readable name of the codec.
 func (c *Libx264Codec) DisplayName() string {
-	return "x264"
+	return "x264 (Default)"
+}
+
+// Name returns the codec key.
+func (c *Libx264Codec) Key() string {
+	return c.Name()
 }
 
 // GlobalFlags are the global flags used with this codec in the transcoder.
@@ -100,6 +108,15 @@ func (c *Libx264Codec) GetPresetForLevel(l int) string {
 	return preset
 }
 
+// GetRepresentation returns the simplified codec representation of this codec.
+func (c *Libx264Codec) GetRepresentation() models.VideoCodec {
+	return models.VideoCodec{
+		Name:        c.Name(),
+		DisplayName: c.DisplayName(),
+		Key:         c.Key(),
+	}
+}
+
 // OmxCodec represents an instance of the Omx codec.
 type OmxCodec struct{}
 
@@ -113,6 +130,11 @@ func (c *OmxCodec) DisplayName() string {
 	return "OpenMAX (omx)"
 }
 
+// Name returns the codec key.
+func (c *OmxCodec) Key() string {
+	return c.Name()
+}
+
 // GlobalFlags are the global flags used with this codec in the transcoder.
 func (c *OmxCodec) GlobalFlags() string {
 	return ""
@@ -165,7 +187,99 @@ func (c *OmxCodec) GetPresetForLevel(l int) string {
 	return preset
 }
 
-// VaapiCodec represents an instance of the Vaapi codec.
+// GetRepresentation returns the simplified codec representation of this codec.
+func (c *OmxCodec) GetRepresentation() models.VideoCodec {
+	return models.VideoCodec{
+		Name:        c.Name(),
+		DisplayName: c.DisplayName(),
+		Key:         c.Key(),
+	}
+}
+
+// VaapiLegacyCodec represents an instance of the Vaapi codec.
+type VaapiLegacyCodec struct{}
+
+// Name returns the codec name.
+func (c *VaapiLegacyCodec) Name() string {
+	return "h264_vaapi" //nolint:goconst
+}
+
+// DisplayName returns the human readable name of the codec.
+func (c *VaapiLegacyCodec) DisplayName() string {
+	return "VA-API (Legacy)"
+}
+
+// Name returns the codec key.
+func (c *VaapiLegacyCodec) Key() string {
+	return "h264_vaapi_legacy"
+}
+
+// GlobalFlags are the global flags used with this codec in the transcoder.
+func (c *VaapiLegacyCodec) GlobalFlags() string {
+	flags := []string{
+		"-hwaccel", "vaapi",
+		"-hwaccel_output_format", "vaapi",
+		"-vaapi_device", "/dev/dri/renderD128",
+	}
+
+	return strings.Join(flags, " ")
+}
+
+// PixelFormat is the pixel format required for this codec.
+func (c *VaapiLegacyCodec) PixelFormat() string {
+	return "vaapi_vld"
+}
+
+// Scaler is the scaler used for resizing the video in the transcoder.
+func (c *VaapiLegacyCodec) Scaler() string {
+	return "scale_vaapi"
+}
+
+// ExtraFilters are the extra filters required for this codec in the transcoder.
+func (c *VaapiLegacyCodec) ExtraFilters() string {
+	return ""
+}
+
+// ExtraArguments are the extra arguments used with this codec in the transcoder.
+func (c *VaapiLegacyCodec) ExtraArguments() string {
+	return ""
+}
+
+// VariantFlags returns a string representing a single variant processed by this codec.
+func (c *VaapiLegacyCodec) VariantFlags(v *HLSVariant) string {
+	return ""
+}
+
+// GetPresetForLevel returns the string preset for this codec given an integer level.
+func (c *VaapiLegacyCodec) GetPresetForLevel(l int) string {
+	presetMapping := map[int]string{
+		0: "ultrafast",
+		1: "superfast",
+		2: "veryfast",
+		3: "faster",
+		4: "fast",
+	}
+
+	preset, ok := presetMapping[l]
+	if !ok {
+		defaultPreset := presetMapping[1]
+		log.Errorf("Invalid level for vaapi preset %d, defaulting to %s", l, defaultPreset)
+		return defaultPreset
+	}
+
+	return preset
+}
+
+// GetRepresentation returns the simplified codec representation of this codec.
+func (c *VaapiLegacyCodec) GetRepresentation() models.VideoCodec {
+	return models.VideoCodec{
+		Name:        c.Name(),
+		DisplayName: c.DisplayName(),
+		Key:         c.Key(),
+	}
+}
+
+// VaapiCodec represents the vaapi codec included in ffmpeg 5.0+.
 type VaapiCodec struct{}
 
 // Name returns the codec name.
@@ -175,7 +289,12 @@ func (c *VaapiCodec) Name() string {
 
 // DisplayName returns the human readable name of the codec.
 func (c *VaapiCodec) DisplayName() string {
-	return "VA-API"
+	return "VA-API (ffmpeg 5+)"
+}
+
+// Name returns the codec key.
+func (c *VaapiCodec) Key() string {
+	return "h264_vaapi"
 }
 
 // GlobalFlags are the global flags used with this codec in the transcoder.
@@ -191,7 +310,7 @@ func (c *VaapiCodec) GlobalFlags() string {
 
 // PixelFormat is the pixel format required for this codec.
 func (c *VaapiCodec) PixelFormat() string {
-	return "vaapi_vld"
+	return "vaapi"
 }
 
 // Scaler is the scaler used for resizing the video in the transcoder.
@@ -234,6 +353,15 @@ func (c *VaapiCodec) GetPresetForLevel(l int) string {
 	return preset
 }
 
+// GetRepresentation returns the simplified codec representation of this codec.
+func (c *VaapiCodec) GetRepresentation() models.VideoCodec {
+	return models.VideoCodec{
+		Name:        c.Name(),
+		DisplayName: c.DisplayName(),
+		Key:         c.Key(),
+	}
+}
+
 // NvencCodec represents an instance of the Nvenc Codec.
 type NvencCodec struct{}
 
@@ -247,6 +375,11 @@ func (c *NvencCodec) DisplayName() string {
 	return "nvidia nvenc"
 }
 
+// Name returns the codec key.
+func (c *NvencCodec) Key() string {
+	return c.Name()
+}
+
 // GlobalFlags are the global flags used with this codec in the transcoder.
 func (c *NvencCodec) GlobalFlags() string {
 	flags := []string{
@@ -302,6 +435,15 @@ func (c *NvencCodec) GetPresetForLevel(l int) string {
 	return preset
 }
 
+// GetRepresentation returns the simplified codec representation of this codec.
+func (c *NvencCodec) GetRepresentation() models.VideoCodec {
+	return models.VideoCodec{
+		Name:        c.Name(),
+		DisplayName: c.DisplayName(),
+		Key:         c.Key(),
+	}
+}
+
 // QuicksyncCodec represents an instance of the Intel Quicksync Codec.
 type QuicksyncCodec struct{}
 
@@ -315,6 +457,11 @@ func (c *QuicksyncCodec) DisplayName() string {
 	return "Intel QuickSync"
 }
 
+// Name returns the codec key.
+func (c *QuicksyncCodec) Key() string {
+	return c.Name()
+}
+
 // GlobalFlags are the global flags used with this codec in the transcoder.
 func (c *QuicksyncCodec) GlobalFlags() string {
 	return ""
@@ -365,6 +512,15 @@ func (c *QuicksyncCodec) GetPresetForLevel(l int) string {
 	return preset
 }
 
+// GetRepresentation returns the simplified codec representation of this codec.
+func (c *QuicksyncCodec) GetRepresentation() models.VideoCodec {
+	return models.VideoCodec{
+		Name:        c.Name(),
+		DisplayName: c.DisplayName(),
+		Key:         c.Key(),
+	}
+}
+
 // Video4Linux represents an instance of the V4L Codec.
 type Video4Linux struct{}
 
@@ -378,6 +534,11 @@ func (c *Video4Linux) DisplayName() string {
 	return "Video4Linux"
 }
 
+// Name returns the codec key.
+func (c *Video4Linux) Key() string {
+	return c.Name()
+}
+
 // GlobalFlags are the global flags used with this codec in the transcoder.
 func (c *Video4Linux) GlobalFlags() string {
 	return ""
@@ -427,6 +588,15 @@ func (c *Video4Linux) GetPresetForLevel(l int) string {
 	return preset
 }
 
+// GetRepresentation returns the simplified codec representation of this codec.
+func (c *Video4Linux) GetRepresentation() models.VideoCodec {
+	return models.VideoCodec{
+		Name:        c.Name(),
+		DisplayName: c.DisplayName(),
+		Key:         c.Key(),
+	}
+}
+
 // VideoToolboxCodec represents an instance of the VideoToolbox codec.
 type VideoToolboxCodec struct{}
 
@@ -440,6 +610,11 @@ func (c *VideoToolboxCodec) DisplayName() string {
 	return "VideoToolbox"
 }
 
+// Name returns the codec key.
+func (c *VideoToolboxCodec) Key() string {
+	return c.Name()
+}
+
 // GlobalFlags are the global flags used with this codec in the transcoder.
 func (c *VideoToolboxCodec) GlobalFlags() string {
 	var flags []string
@@ -502,25 +677,35 @@ func (c *VideoToolboxCodec) GetPresetForLevel(l int) string {
 	return preset
 }
 
+// GetRepresentation returns the simplified codec representation of this codec.
+func (c *VideoToolboxCodec) GetRepresentation() models.VideoCodec {
+	return models.VideoCodec{
+		Name:        c.Name(),
+		DisplayName: c.DisplayName(),
+		Key:         c.Key(),
+	}
+}
+
 // GetCodecs will return the supported codecs available on the system.
-func GetCodecs(ffmpegPath string) []string {
+func GetCodecs(ffmpegPath string) []models.VideoCodec {
-	codecs := make([]string, 0)
+	codecs := make([]models.VideoCodec, 0)
 
 	cmd := exec.Command(ffmpegPath, "-encoders")
 	out, err := cmd.CombinedOutput()
 	if err != nil {
-		log.Errorln(err)
 		return codecs
 	}
-
 	response := string(out)
 	lines := strings.Split(response, "\n")
 	for _, line := range lines {
 		if strings.Contains(line, "H.264") {
 			fields := strings.Fields(line)
-			codec := fields[1]
+			codecString := fields[1]
-			if _, supported := supportedCodecs[codec]; supported {
+			supportedCodecsForName := getCodec(codecString)
-				codecs = append(codecs, codec)
+			for _, codec := range supportedCodecsForName {
+				if _, supported := supportedCodecs[codecString]; supported {
+					codecs = append(codecs, codec.GetRepresentation())
+				}
 			}
 		}
 	}
@@ -528,19 +713,44 @@ func GetCodecs(ffmpegPath string) []string {
 	return codecs
 }
 
-func getCodec(name string) Codec {
+func getCodec(name string) []Codec {
 	switch name {
 	case (&NvencCodec{}).Name():
-		return &NvencCodec{}
+		return []Codec{&NvencCodec{}}
+	case (&VaapiLegacyCodec{}).Name():
+		return []Codec{&VaapiLegacyCodec{}, &VaapiCodec{}}
 	case (&VaapiCodec{}).Name():
-		return &VaapiCodec{}
+		return []Codec{&VaapiLegacyCodec{}, &VaapiCodec{}}
 	case (&QuicksyncCodec{}).Name():
-		return &QuicksyncCodec{}
+		return []Codec{&QuicksyncCodec{}}
 	case (&OmxCodec{}).Name():
-		return &OmxCodec{}
+		return []Codec{&OmxCodec{}}
 	case (&Video4Linux{}).Name():
-		return &Video4Linux{}
+		return []Codec{&Video4Linux{}}
 	case (&VideoToolboxCodec{}).Name():
+		return []Codec{&VideoToolboxCodec{}}
+	case (&Libx264Codec{}).Name():
+		return []Codec{&Libx264Codec{}}
+	default:
+		return []Codec{}
+	}
+}
+
+func getCodecForKey(key string) Codec {
+	switch key {
+	case (&NvencCodec{}).Key():
+		return &NvencCodec{}
+	case (&VaapiLegacyCodec{}).Key():
+		return &VaapiLegacyCodec{}
+	case (&VaapiCodec{}).Key():
+		return &VaapiCodec{}
+	case (&QuicksyncCodec{}).Key():
+		return &QuicksyncCodec{}
+	case (&OmxCodec{}).Key():
+		return &OmxCodec{}
+	case (&Video4Linux{}).Key():
+		return &Video4Linux{}
+	case (&VideoToolboxCodec{}).Key():
 		return &VideoToolboxCodec{}
 	default:
 		return &Libx264Codec{}

core/transcoder/transcoder.go

@@ -274,6 +274,8 @@ func getVariantFromConfigQuality(quality models.StreamOutputVariant, index int)
 // NewTranscoder will return a new Transcoder, populated by the config.
 func NewTranscoder() *Transcoder {
 	ffmpegPath := utils.ValidatedFfmpegPath(data.GetFfMpegPath())
+	codecKey := data.GetVideoCodec()
+	codec := getCodecForKey(codecKey)
 
 	transcoder := new(Transcoder)
 	transcoder.ffmpegPath = ffmpegPath
@@ -281,7 +283,7 @@ func NewTranscoder() *Transcoder {
 
 	transcoder.currentStreamOutputSettings = data.GetStreamOutputVariants()
 	transcoder.currentLatencyLevel = data.GetStreamLatencyLevel()
-	transcoder.codec = getCodec(data.GetVideoCodec())
+	transcoder.codec = codec
 	transcoder.segmentOutputPath = config.HLSStoragePath
 	transcoder.playlistOutputPath = config.HLSStoragePath
 
@@ -448,7 +450,7 @@ func (t *Transcoder) SetInternalHTTPPort(port string) {
 	t.internalListenerPort = port
 }
 
-// SetCodec will set the codec to be used for the transocder.
+// SetCodec will set the codec to be used for the transcoder.
-func (t *Transcoder) SetCodec(codecName string) {
+func (t *Transcoder) SetCodec(codecKey string) {
-	t.codec = getCodec(codecName)
+	t.codec = getCodecForKey(codecKey)
 }

core/transcoder/transcoder_vaapi-legacy_test.go

@@ -0,0 +1,50 @@
+package transcoder
+
+import (
+	"path/filepath"
+	"testing"
+
+	"github.com/owncast/owncast/models"
+)
+
+func TestFFmpegVaapiLegacyCommand(t *testing.T) {
+	latencyLevel := models.GetLatencyLevel(2)
+	codec := VaapiLegacyCodec{}
+
+	transcoder := new(Transcoder)
+	transcoder.ffmpegPath = filepath.Join("fake", "path", "ffmpeg")
+	transcoder.SetInput("fakecontent.flv")
+	transcoder.SetOutputPath("fakeOutput")
+	transcoder.SetIdentifier("jdofFGg")
+	transcoder.SetInternalHTTPPort("8123")
+	transcoder.SetCodec(codec.Key())
+	transcoder.currentLatencyLevel = latencyLevel
+
+	variant := HLSVariant{}
+	variant.videoBitrate = 1200
+	variant.isAudioPassthrough = true
+	variant.SetVideoFramerate(30)
+	variant.SetCPUUsageLevel(2)
+	transcoder.AddVariant(variant)
+
+	variant2 := HLSVariant{}
+	variant2.videoBitrate = 3500
+	variant2.isAudioPassthrough = true
+	variant2.SetVideoFramerate(24)
+	variant2.SetCPUUsageLevel(4)
+	transcoder.AddVariant(variant2)
+
+	variant3 := HLSVariant{}
+	variant3.isAudioPassthrough = true
+	variant3.isVideoPassthrough = true
+	transcoder.AddVariant(variant3)
+
+	cmd := transcoder.getString()
+
+	expectedLogPath := filepath.Join("data", "logs", "transcoder.log")
+	expected := `FFREPORT=file="` + expectedLogPath + `":level=32 ` + transcoder.ffmpegPath + ` -hide_banner -loglevel warning -hwaccel vaapi -hwaccel_output_format vaapi -vaapi_device /dev/dri/renderD128 -fflags +genpts -flags +cgop -i  fakecontent.flv  -map v:0 -c:v:0 h264_vaapi -b:v:0 1008k -maxrate:v:0 1088k -g:v:0 90 -keyint_min:v:0 90 -r:v:0 30  -map a:0? -c:a:0 copy -preset veryfast -map v:0 -c:v:1 h264_vaapi -b:v:1 3308k -maxrate:v:1 3572k -g:v:1 72 -keyint_min:v:1 72 -r:v:1 24  -map a:0? -c:a:1 copy -preset fast -map v:0 -c:v:2 copy -map a:0? -c:a:2 copy -preset ultrafast  -var_stream_map "v:0,a:0 v:1,a:1 v:2,a:2 " -f hls -hls_time 3 -hls_list_size 10 -hls_flags program_date_time+independent_segments+omit_endlist  -segment_format_options mpegts_flags=mpegts_copyts=1  -pix_fmt vaapi_vld -sc_threshold 0 -master_pl_name stream.m3u8 -hls_segment_filename http://127.0.0.1:8123/%v/stream-jdofFGg-%d.ts -max_muxing_queue_size 400 -method PUT http://127.0.0.1:8123/%v/stream.m3u8`
+
+	if cmd != expected {
+		t.Errorf("ffmpeg command does not match expected.\nGot %s\n, want: %s", cmd, expected)
+	}
+}

core/transcoder/transcoder_vaapi_test.go

@@ -17,7 +17,7 @@ func TestFFmpegVaapiCommand(t *testing.T) {
 	transcoder.SetOutputPath("fakeOutput")
 	transcoder.SetIdentifier("jdofFGg")
 	transcoder.SetInternalHTTPPort("8123")
-	transcoder.SetCodec(codec.Name())
+	transcoder.SetCodec(codec.Key())
 	transcoder.currentLatencyLevel = latencyLevel
 
 	variant := HLSVariant{}
@@ -42,7 +42,7 @@ func TestFFmpegVaapiCommand(t *testing.T) {
 	cmd := transcoder.getString()
 
 	expectedLogPath := filepath.Join("data", "logs", "transcoder.log")
-	expected := `FFREPORT=file="` + expectedLogPath + `":level=32 ` + transcoder.ffmpegPath + ` -hide_banner -loglevel warning -hwaccel vaapi -hwaccel_output_format vaapi -vaapi_device /dev/dri/renderD128 -fflags +genpts -flags +cgop -i  fakecontent.flv  -map v:0 -c:v:0 h264_vaapi -b:v:0 1008k -maxrate:v:0 1088k -g:v:0 90 -keyint_min:v:0 90 -r:v:0 30  -map a:0? -c:a:0 copy -preset veryfast -map v:0 -c:v:1 h264_vaapi -b:v:1 3308k -maxrate:v:1 3572k -g:v:1 72 -keyint_min:v:1 72 -r:v:1 24  -map a:0? -c:a:1 copy -preset fast -map v:0 -c:v:2 copy -map a:0? -c:a:2 copy -preset ultrafast  -var_stream_map "v:0,a:0 v:1,a:1 v:2,a:2 " -f hls -hls_time 3 -hls_list_size 10 -hls_flags program_date_time+independent_segments+omit_endlist  -segment_format_options mpegts_flags=mpegts_copyts=1  -pix_fmt vaapi_vld -sc_threshold 0 -master_pl_name stream.m3u8 -hls_segment_filename http://127.0.0.1:8123/%v/stream-jdofFGg-%d.ts -max_muxing_queue_size 400 -method PUT http://127.0.0.1:8123/%v/stream.m3u8`
+	expected := `FFREPORT=file="` + expectedLogPath + `":level=32 ` + transcoder.ffmpegPath + ` -hide_banner -loglevel warning -hwaccel vaapi -hwaccel_output_format vaapi -vaapi_device /dev/dri/renderD128 -fflags +genpts -flags +cgop -i  fakecontent.flv  -map v:0 -c:v:0 h264_vaapi -b:v:0 1008k -maxrate:v:0 1088k -g:v:0 90 -keyint_min:v:0 90 -r:v:0 30  -map a:0? -c:a:0 copy -preset veryfast -map v:0 -c:v:1 h264_vaapi -b:v:1 3308k -maxrate:v:1 3572k -g:v:1 72 -keyint_min:v:1 72 -r:v:1 24  -map a:0? -c:a:1 copy -preset fast -map v:0 -c:v:2 copy -map a:0? -c:a:2 copy -preset ultrafast  -var_stream_map "v:0,a:0 v:1,a:1 v:2,a:2 " -f hls -hls_time 3 -hls_list_size 10 -hls_flags program_date_time+independent_segments+omit_endlist  -segment_format_options mpegts_flags=mpegts_copyts=1  -pix_fmt vaapi -sc_threshold 0 -master_pl_name stream.m3u8 -hls_segment_filename http://127.0.0.1:8123/%v/stream-jdofFGg-%d.ts -max_muxing_queue_size 400 -method PUT http://127.0.0.1:8123/%v/stream.m3u8`
 
 	if cmd != expected {
 		t.Errorf("ffmpeg command does not match expected.\nGot %s\n, want: %s", cmd, expected)

models/videoCodec.go

@@ -0,0 +1,7 @@
+package models
+
+type VideoCodec struct {
+	Name        string `json:"name"`
+	DisplayName string `json:"displayName"`
+	Key         string `json:"key"`
+}

web/components/admin/CodecSelector.tsx

@@ -77,30 +77,12 @@ export const CodecSelector: FC<CodecSelectorProps> = () => {
     });
   }
 
-  const items = supportedCodecs.map(codec => {
+  // console.log(supportedCodecs);
-    let title = codec;
+  const items = supportedCodecs.map(codec => (
-    if (title === 'libx264') {
+    <Option key={codec.key} value={codec.key}>
-      title = 'Default (libx264)';
+      {codec.displayName}
-    } else if (title === 'h264_nvenc') {
+    </Option>
-      title = 'NVIDIA GPU acceleration';
+  ));
-    } else if (title === 'h264_vaapi') {
-      title = 'VA-API hardware encoding';
-    } else if (title === 'h264_qsv') {
-      title = 'Intel QuickSync';
-    } else if (title === 'h264_v4l2m2m') {
-      title = 'Video4Linux hardware encoding';
-    } else if (title === 'h264_omx') {
-      title = 'OpenMax (omx) for Raspberry Pi';
-    } else if (title === 'h264_videotoolbox') {
-      title = 'Apple VideoToolbox (hardware)';
-    }
-
-    return (
-      <Option key={codec} value={codec}>
-        {title}
-      </Option>
-    );
-  });
 
   let description = '';
   if (selectedCodec === 'libx264') {
@@ -109,9 +91,12 @@ export const CodecSelector: FC<CodecSelectorProps> = () => {
   } else if (selectedCodec === 'h264_nvenc') {
     description =
       'You can use your NVIDIA GPU for encoding if you have a modern NVIDIA card with encoding cores.';
+  } else if (selectedCodec === 'h264_vaapi_legacy') {
+    description =
+      'For versions of ffmpeg < 5.0. VA-API may be supported by your NVIDIA proprietary drivers, Mesa open-source drivers for AMD or Intel graphics.';
   } else if (selectedCodec === 'h264_vaapi') {
     description =
-      'VA-API may be supported by your NVIDIA proprietary drivers, Mesa open-source drivers for AMD or Intel graphics.';
+      'For versions of ffmpeg > 5.0. VA-API may be supported by your NVIDIA proprietary drivers, Mesa open-source drivers for AMD or Intel graphics.';
   } else if (selectedCodec === 'h264_qsv') {
     description =
       "Quick Sync Video is Intel's brand for its dedicated video encoding and decoding hardware. It may be an option if you have a modern Intel CPU with integrated graphics.";

web/types/config-section.ts

@@ -1,5 +1,7 @@
 // TS types for elements on the Config pages
 
+import { VideoCodec } from './video-codec';
+
 // for dropdown
 export interface SocialHandleDropdownItem {
   icon: string;
@@ -147,7 +149,7 @@ export interface ConfigDetails {
   socketHostOverride: string;
   videoServingEndpoint: string;
   yp: ConfigDirectoryFields;
-  supportedCodecs: string[];
+  supportedCodecs: VideoCodec[];
   videoCodec: string;
   forbiddenUsernames: string[];
   suggestedUsernames: string[];

web/types/video-codec.ts

@@ -0,0 +1,5 @@
+export interface VideoCodec {
+  name: string;
+  displayName: string;
+  key: string;
+}