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avoid using deprecated CodecCtx()

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This commit is contained in:
lukas 2021-09-27 22:36:06 +02:00
parent ecef80f87f
commit 5b2eff3f6d
1 changed files with 30 additions and 19 deletions
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49
apiGo/videoparser/thumbnail/Thumbnailparser_shared_ffmpeg.go
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@ -3,6 +3,7 @@
package thumbnail
import (
"fmt"
"github.com/3d0c/gmf"
"io"
"log"
@ -20,7 +21,7 @@ func Parse(filename string, time uint64) (*string, *VidInfo, error) {
}
}
func decodePic(srcFileName string, decodeExtension string, time uint64) (pic *[]byte, info *VidInfo, err error) {
func decodePic(srcFileName string, encodeExtension string, time uint64) (pic *[]byte, info *VidInfo, err error) {
var swsctx *gmf.SwsCtx
gmf.LogSetLevel(gmf.AV_LOG_PANIC)
@ -46,19 +47,19 @@ func decodePic(srcFileName string, decodeExtension string, time uint64) (pic *[]
return nil, nil, err
}
codec, err := gmf.FindEncoder(decodeExtension)
encodeCodec, err := gmf.FindEncoder(encodeExtension)
if err != nil {
log.Printf("%s\n", err)
return nil, nil, err
}
cc := gmf.NewCodecCtx(codec)
cc := gmf.NewCodecCtx(encodeCodec)
defer gmf.Release(cc)
cc.SetTimeBase(gmf.AVR{Num: 1, Den: 1})
cc.SetPixFmt(gmf.AV_PIX_FMT_YUVJ444P).SetWidth(srcVideoStream.CodecPar().Width()).SetHeight(srcVideoStream.CodecPar().Height())
if codec.IsExperimental() {
if encodeCodec.IsExperimental() {
cc.SetStrictCompliance(gmf.FF_COMPLIANCE_EXPERIMENTAL)
}
@ -68,28 +69,35 @@ func decodePic(srcFileName string, decodeExtension string, time uint64) (pic *[]
}
defer cc.Free()
ist, err := inputCtx.GetStream(srcVideoStream.Index())
if err != nil {
log.Printf("Error getting stream - %s\n", err)
return nil, nil, err
}
defer ist.Free()
err = inputCtx.SeekFrameAt(int64(time), 0)
err = inputCtx.SeekFrameAt(int64(time), srcVideoStream.Index())
if err != nil {
log.Printf("Error while seeking file: %s\n", err.Error())
return
return nil, nil, err
}
// find encodeCodec to decode video
decodeCodec, err := gmf.FindDecoder(srcVideoStream.CodecPar().CodecId())
if err != nil {
fmt.Println(err)
return nil, nil, err
}
icc := gmf.NewCodecCtx(decodeCodec)
defer gmf.Release(icc)
// copy stream parameters in codeccontext
err = srcVideoStream.CodecPar().ToContext(icc)
if err != nil {
fmt.Println(err.Error())
}
// convert source pix_fmt into AV_PIX_FMT_RGBA
// which is set up by codec context above
icc := srcVideoStream.CodecCtx()
if swsctx, err = gmf.NewSwsCtx(icc.Width(), icc.Height(), icc.PixFmt(), cc.Width(), cc.Height(), cc.PixFmt(), gmf.SWS_BICUBIC); err != nil {
panic(err)
}
defer swsctx.Free()
frameRate := float32(ist.GetRFrameRate().AVR().Num) / float32(ist.GetRFrameRate().AVR().Den)
frameRate := float32(srcVideoStream.GetRFrameRate().AVR().Num) / float32(srcVideoStream.GetRFrameRate().AVR().Den)
inf := VidInfo{
Width: uint32(icc.Width()),
Height: uint32(icc.Height()),
@ -127,7 +135,7 @@ func decodePic(srcFileName string, decodeExtension string, time uint64) (pic *[]
continue
}
frames, err = ist.CodecCtx().Decode(pkt)
frames, err = srcVideoStream.CodecCtx().Decode(pkt)
if err != nil {
log.Printf("Fatal error during decoding - %s\n", err)
@ -162,7 +170,7 @@ func decodePic(srcFileName string, decodeExtension string, time uint64) (pic *[]
p.Free()
}
for i, _ := range frames {
for i := range frames {
frames[i].Free()
frameCount++
}
@ -179,9 +187,12 @@ func decodePic(srcFileName string, decodeExtension string, time uint64) (pic *[]
for i := 0; i < inputCtx.StreamsCnt(); i++ {
st, err := inputCtx.GetStream(i)
if err == nil && st != nil {
st.CodecCtx().Free()
st.Free()
}
}
icc.Free()
srcVideoStream.Free()
return
}