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2023-10-19 14:31:46 CST W42D4

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This commit is contained in:
aggresss
2023-10-19 14:31:46 +08:00
parent 762aa14362
commit 0f95831c39
52 changed files with 9140 additions and 4324 deletions
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12
examples/decode-audio/main.go
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@@ -13,9 +13,9 @@ const (
AUDIO_REFILL_THRESH = 4096
)
func getFormatFromSampleFmt(sampleFmt ffmpeg.AvSampleFormat) (string, int32) {
func getFormatFromSampleFmt(sampleFmt ffmpeg.AVSampleFormat) (string, int32) {
sampleFmtEntry := []struct {
sampleFmt ffmpeg.AvSampleFormat
sampleFmt ffmpeg.AVSampleFormat
fmtBe string
fmtLe string
}{
@@ -37,7 +37,7 @@ func getFormatFromSampleFmt(sampleFmt ffmpeg.AvSampleFormat) (string, int32) {
return "", -1
}
func decode(decCtx *ffmpeg.AvCodecContext, pkt *ffmpeg.AvPacket, frame *ffmpeg.AvFrame, outfile *os.File) {
func decode(decCtx *ffmpeg.AVCodecContext, pkt *ffmpeg.AVPacket, frame *ffmpeg.AVFrame, outfile *os.File) {
// send the packet with the compressed data to the decoder
ret := ffmpeg.AvCodecSendPacket(decCtx, pkt)
if ret < 0 {
@@ -48,7 +48,7 @@ func decode(decCtx *ffmpeg.AvCodecContext, pkt *ffmpeg.AvPacket, frame *ffmpeg.A
// read all the output frames (in general there may be any number of them
for ret >= 0 {
ret = ffmpeg.AvCodecReceiveFrame(decCtx, frame)
if ret == ffmpeg.AVERROR(int32(syscall.EAGAIN)) || ret == ffmpeg.AVERROR_EOF {
if ret == ffmpeg.AVERROR(syscall.EAGAIN) || ret == ffmpeg.AVERROR_EOF {
return
} else if ret < 0 {
fmt.Fprintf(os.Stderr, "Error during decoding\n")
@@ -62,7 +62,7 @@ func decode(decCtx *ffmpeg.AvCodecContext, pkt *ffmpeg.AvPacket, frame *ffmpeg.A
}
for i := int32(0); i < frame.GetNbSamples(); i++ {
for ch := 0; ch < int(decCtx.GetChannels()); ch++ {
outfile.Write(ffmpeg.SliceWithOffset(frame.GetDataIdx(ch), dataSize*i, dataSize))
outfile.Write(ffmpeg.ByteSliceWithOffset(frame.GetDataIdx(ch), dataSize*i, dataSize))
}
}
}
@@ -114,7 +114,7 @@ func main() {
}
// decode until eof
var decodedFrame *ffmpeg.AvFrame
var decodedFrame *ffmpeg.AVFrame
inbuf := make([]byte, AUDIO_INBUF_SIZE+ffmpeg.AV_INPUT_BUFFER_PADDING_SIZE)
dataOffset := 0
dataSize, err := f.Read(inbuf[:AUDIO_INBUF_SIZE])