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codectest.go
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codectest.go
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// Package codectest provides shared test for codec implementations.
package codectest
import (
"image"
"io"
"testing"
"github.com/carbonrobotics/mediadevices/pkg/codec"
"github.com/carbonrobotics/mediadevices/pkg/io/audio"
"github.com/carbonrobotics/mediadevices/pkg/io/video"
"github.com/carbonrobotics/mediadevices/pkg/prop"
"github.com/carbonrobotics/mediadevices/pkg/wave"
)
func assertNoPanic(t *testing.T, fn func() error, msg string) error {
defer func() {
if r := recover(); r != nil {
t.Errorf("panic: %v: %s", r, msg)
}
}()
return fn()
}
func AudioEncoderSimpleReadTest(t *testing.T, c codec.AudioEncoderBuilder, p prop.Media, w wave.Audio) {
var eof bool
enc, err := c.BuildAudioEncoder(audio.ReaderFunc(func() (wave.Audio, func(), error) {
if eof {
return nil, nil, io.EOF
}
return w, nil, nil
}), p)
if err != nil {
t.Fatal(err)
}
for i := 0; i < 16; i++ {
b, release, err := enc.Read()
if err != nil {
t.Fatal(err)
}
if len(b) == 0 {
t.Fatal("Encoded frame is empty")
}
release()
}
eof = true
if _, _, err := enc.Read(); err != io.EOF {
t.Fatalf("Expected EOF, got %v", err)
}
if err := enc.Close(); err != nil {
t.Fatal(err)
}
}
func VideoEncoderSimpleReadTest(t *testing.T, c codec.VideoEncoderBuilder, p prop.Media, img image.Image) {
var eof bool
enc, err := c.BuildVideoEncoder(video.ReaderFunc(func() (image.Image, func(), error) {
if eof {
return nil, nil, io.EOF
}
return img, nil, nil
}), p)
if err != nil {
t.Fatal(err)
}
for i := 0; i < 16; i++ {
b, release, err := enc.Read()
if err != nil {
t.Fatal(err)
}
if len(b) == 0 {
t.Errorf("Encoded frame is empty (%d)", i)
}
release()
}
eof = true
if _, _, err := enc.Read(); err != io.EOF {
t.Fatalf("Expected EOF, got %v", err)
}
if err := enc.Close(); err != nil {
t.Fatal(err)
}
}
func AudioEncoderCloseTwiceTest(t *testing.T, c codec.AudioEncoderBuilder, p prop.Media) {
enc, err := c.BuildAudioEncoder(audio.ReaderFunc(func() (wave.Audio, func(), error) {
return nil, nil, io.EOF
}), p)
if err != nil {
t.Fatal(err)
}
if err := assertNoPanic(t, enc.Close, "on first Close()"); err != nil {
t.Fatal(err)
}
if err := assertNoPanic(t, enc.Close, "on second Close()"); err != nil {
t.Fatal(err)
}
}
func VideoEncoderCloseTwiceTest(t *testing.T, c codec.VideoEncoderBuilder, p prop.Media) {
enc, err := c.BuildVideoEncoder(video.ReaderFunc(func() (image.Image, func(), error) {
return nil, nil, io.EOF
}), p)
if err != nil {
t.Fatal(err)
}
if err := assertNoPanic(t, enc.Close, "on first Close()"); err != nil {
t.Fatal(err)
}
if err := assertNoPanic(t, enc.Close, "on second Close()"); err != nil {
t.Fatal(err)
}
}
func AudioEncoderReadAfterCloseTest(t *testing.T, c codec.AudioEncoderBuilder, p prop.Media, w wave.Audio) {
enc, err := c.BuildAudioEncoder(audio.ReaderFunc(func() (wave.Audio, func(), error) {
return w, nil, nil
}), p)
if err != nil {
t.Fatal(err)
}
if err := assertNoPanic(t, enc.Close, "on Close()"); err != nil {
t.Fatal(err)
}
if err := assertNoPanic(t, func() error {
_, _, err := enc.Read()
return err
}, "on Read()"); err != io.EOF {
t.Fatalf("Expected: %v, got: %v", io.EOF, err)
}
}
func VideoEncoderReadAfterCloseTest(t *testing.T, c codec.VideoEncoderBuilder, p prop.Media, img image.Image) {
enc, err := c.BuildVideoEncoder(video.ReaderFunc(func() (image.Image, func(), error) {
return img, nil, nil
}), p)
if err != nil {
t.Fatal(err)
}
if err := assertNoPanic(t, enc.Close, "on Close()"); err != nil {
t.Fatal(err)
}
if err := assertNoPanic(t, func() error {
_, _, err := enc.Read()
return err
}, "on Read()"); err != io.EOF {
t.Fatalf("Expected: %v, got: %v", io.EOF, err)
}
}