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feat(ffmpeg): select frame by duration and float position

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This commit is contained in:
Adrian Shum 2022-10-22 09:53:42 +08:00
parent 3b02ab7458
commit fe92e79efc
1 changed files with 1 additions and 1 deletions
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2
ffmpeg/ffmpeg.go
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@ -106,6 +106,7 @@ func (av *AVContext) SelectPosition(f float64) (err error) {
func (av *AVContext) SelectDuration(ts time.Duration) (err error) {
if ts > 0 {
av.selectedDuration = ts
if err = seekDuration(av, ts); err != nil {
return
}
@ -227,7 +228,6 @@ func createDecoder(av *AVContext) error {
}
func seekDuration(av *AVContext, ts time.Duration) error {
av.selectedDuration = ts
tts := C.int64_t(ts.Milliseconds()) * C.AV_TIME_BASE / 1000
err := C.av_seek_frame(av.formatContext, C.int(-1), tts, C.AVSEEK_FLAG_BACKWARD)
C.avcodec_flush_buffers(av.codecContext)