Post segment for transcode to Livepeer network directly from go code

[AlexKordic]

Followup issues:

• Transcode to handle 422 response from broadcaster #90
• transcode - broadcaster failover #91

How to test

Prepare ./sample.ts in snippet dir.

Use this snippet:

package transcode_test

import (
	"fmt"
	"math/rand"
	"os"
	"testing"
	"time"

	"github.com/livepeer/catalyst-api/cache"
	"github.com/livepeer/catalyst-api/config"
	"github.com/livepeer/catalyst-api/transcode"
	"github.com/stretchr/testify/require"
)

func TestTranscode(t *testing.T) {
	rand.Seed(time.Now().Unix())

	file, err := os.Open("./sample.ts")
	require.NoError(t, err)
	defer file.Close()

	creds := transcode.Credentials{
		AccessToken:  "REPLACE-ME-WITH-SECRET",
		CustomApiUrl: "https://origin.livepeer.com/api/",
	}
	request := transcode.SegmentTranscodeRequest{
		StreamName:      config.RandomTrailer(),
		Credentials:     creds,
		SequenceNumber:  0,
		MediaDataReader: file,
		MediaDurationMs: 971,
		TargetProfiles: []cache.EncodedProfile{
			{Name: "p360", Bitrate: 800000, Width: 640, Height: 360, FPS: 24, Profile: "H264High"},
			{Name: "p720", Bitrate: 3000000, Width: 1280, Height: 720, FPS: 24, Profile: "H264High"},
		},
		LocalBroadcaster: nil,
		TranscodeTimeout: 6 * time.Second,
		ApiTimeout:       2 * time.Second,
	}
	manifestId, err := transcode.CreateStream(request)
	require.NoError(t, err)
	defer transcode.ReleaseManifestId(request, manifestId)
	encoded, err := transcode.TranscodeSegment(request, manifestId)
	require.NoError(t, err)
	for _, rendition := range encoded.Renditions {
		fmt.Printf("> got rendition name=%s url=%v data=%d\n", rendition.Name, rendition.MediaUrl, len(rendition.MediaData))
		err = os.WriteFile(fmt.Sprintf("./rendition_%s.ts", rendition.Name), rendition.MediaData, 0666)
		require.NoError(t, err)
	}
}

[codecov]

Codecov Report

Merging #92 (d6d902e) into main (6fa7738) will decrease coverage by 7.77921%.
The diff coverage is 0.00000%.

@@                 Coverage Diff                 @@
##                main         #92         +/-   ##
===================================================
- Coverage   46.77996%   39.00075%   -7.77921%     
===================================================
  Files             21          24          +3     
  Lines           1118        1341        +223     
===================================================
  Hits             523         523                 
- Misses           533         756        +223     
  Partials          62          62                 

Impacted Files	Coverage Δ
cache/transcoding.go	60.25641% <ø> (ø)
clients/broadcaster.go	0.00000% <0.00000%> (ø)
clients/broadcaster_local.go	0.00000% <0.00000%> (ø)
clients/broadcaster_remote.go	0.00000% <0.00000%> (ø)
handlers/transcode.go	42.30769% <ø> (ø)

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Impacted Files	Coverage Δ
cache/transcoding.go	60.25641% <ø> (ø)
clients/broadcaster.go	0.00000% <0.00000%> (ø)
clients/broadcaster_local.go	0.00000% <0.00000%> (ø)
clients/broadcaster_remote.go	0.00000% <0.00000%> (ø)
handlers/transcode.go	42.30769% <ø> (ø)