func (m *Muxer) Open() bool {
w, h := m.capture.Resolution()
if !m.AddVideoStream(C.AV_CODEC_ID_H264, w, h) {
return false
}
if !m.AddAudioStream(C.AV_CODEC_ID_AAC) {
return false
}
if m.context.oformat.flags&C.AVFMT_NOFILE == 0 {
if C.avio_open(&m.context.pb, &m.context.filename[0], C.AVIO_FLAG_WRITE) < 0 {
return false
}
m.recl = append(m.recl, func() {
C.avio_close(m.context.pb)
})
}
C.av_dump_format(m.context, 0, &m.context.filename[0], 1)
if C.avformat_write_header(m.context, (**C.AVDictionary)(null)) < 0 {
return false
}
m.recl = append(m.recl, func() {
C.av_write_trailer(m.context)
})
m.loop = true
go m.routine()
if m.display != nil {
m.display.Open()
}
return true
}
func (this *FmtCtx) WriteHeader() error {
cfilename := &(this.avCtx.filename[0])
// If NOFILE flag isn't set and we don't use custom IO, open it
if !this.IsNoFile() && !this.customPb {
if averr := C.avio_open(&this.avCtx.pb, cfilename, C.AVIO_FLAG_WRITE); averr < 0 {
return errors.New(fmt.Sprintf("Unable to open '%s': %s", this.Filename, AvError(int(averr))))
}
}
if averr := C.avformat_write_header(this.avCtx, nil); averr < 0 {
return errors.New(fmt.Sprintf("Unable to write header to '%s': %s", this.Filename, AvError(int(averr))))
}
return nil
}
func (this *FmtCtx) WriteHeader() error {
cfilename := C.CString(this.ofmt.Filename)
defer C.free(unsafe.Pointer(cfilename))
if !this.IsNoFile() {
if averr := C.avio_open(&this.avCtx.pb, cfilename, C.AVIO_FLAG_WRITE); averr < 0 {
return errors.New(fmt.Sprintf("Unable to open '%s': %s", this.ofmt.Filename, AvError(int(averr))))
}
}
if averr := C.avformat_write_header(this.avCtx, nil); averr < 0 {
return errors.New(fmt.Sprintf("Unable to write header to '%s': %s", this.ofmt.Filename, AvError(int(averr))))
}
return nil
}
func url_fopen(ctx *FormatContext, filename string) int {
file := C.CString(filename)
defer C.free(unsafe.Pointer(file))
return int(C.avio_open(&ctx.ctx.pb, file, C.URL_WRONLY))
}