mirror of https://bitbucket.org/ausocean/av.git
ADPCM: changed adpcm_test.go to use pre-allocation of byte slices
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parent
071b16ccf6
commit
408a952c9a
stream/adpcm
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@ -43,9 +43,11 @@ func TestEncodeBlock(t *testing.T) {
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}
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//encode adpcm
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var comp []byte
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bSize := 1010
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for i, start := bSize-1, 0; i < len(pcm); i += bSize {
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inBSize := 1010
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numBlocks := int(len(pcm) / inBSize)
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outBSize := int(float32(inBSize/4) + float32(3.5)) // compression is 4:1 and 3.5 bytes of info are added to each block
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comp := make([]byte, 0, outBSize*numBlocks)
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for i, start := inBSize-1, 0; i < len(pcm); i += inBSize {
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block := pcm[start : i+1]
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encBlock, err := EncodeBlock(block)
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@ -77,9 +79,11 @@ func TestDecodeBlock(t *testing.T) {
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}
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//decode adpcm
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var decoded []byte
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bSize := 256
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for i, start := bSize-1, 0; i < len(comp); i += bSize {
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inBSize := 256
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numBlocks := int(len(comp) / inBSize)
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outBSize := 2 + (inBSize-4)*4 // 2 bytes are copied, 2 are used as block header info, the remaining bytes are decompressed 1:4
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decoded := make([]byte, 0, outBSize*numBlocks)
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for i, start := inBSize-1, 0; i < len(comp); i += inBSize {
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block := comp[start : i+1]
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decBlock, err := DecodeBlock(block)
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if err != nil {
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