func (this *FmtCtx) Dump() {
if this.ofmt == nil {
C.av_dump_format(this.avCtx, 0, &(this.avCtx.filename[0]), 0)
} else {
C.av_dump_format(this.avCtx, 0, &(this.avCtx.filename[0]), 1)
}
}
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 (ctx *Context) Dump(streamIndex int, url string, isOutput bool) {
var cIsOutput C.int
if isOutput {
cIsOutput = C.int(1)
}
cURL := C.CString(url)
defer C.free(unsafe.Pointer(cURL))
C.av_dump_format(ctx.CAVFormatContext, C.int(streamIndex), cURL, cIsOutput)
}
func NewDecoder(filename string) (*Decoder, error) {
self := new(Decoder)
// format context
var formatContext *C.AVFormatContext
if C.avformat_open_input(&formatContext, C.CString(filename), nil, nil) != C.int(0) {
return nil, errors.New(fmt.Sprintf("can't open %d", filename))
}
if C.avformat_find_stream_info(formatContext, nil) < 0 {
return nil, errors.New("find stream info error")
}
C.av_dump_format(formatContext, 0, C.CString(filename), 0)
self.FormatContext = formatContext
// streams
var streams []*C.AVStream
header := (*reflect.SliceHeader)(unsafe.Pointer(&streams))
header.Cap = int(formatContext.nb_streams)
header.Len = int(formatContext.nb_streams)
header.Data = uintptr(unsafe.Pointer(formatContext.streams))
self.Streams = streams
for _, stream := range streams {
switch stream.codec.codec_type {
case C.AVMEDIA_TYPE_VIDEO:
self.VideoStreams = append(self.VideoStreams, stream)
case C.AVMEDIA_TYPE_AUDIO:
self.AudioStreams = append(self.AudioStreams, stream)
default: //TODO other stream
}
}
// codecs
for _, stream := range self.Streams {
codec := C.avcodec_find_decoder(stream.codec.codec_id)
if codec == nil {
continue
}
var options *C.AVDictionary
if C.avcodec_open2(stream.codec, codec, &options) < 0 {
return nil, errors.New(fmt.Sprintf("open codec error %v", stream.codec))
}
self.openedCodecs = append(self.openedCodecs, stream.codec)
}
// output channels
self.audioFrames = make(chan *AudioFrame, 1024)
self.timedFrames = make(chan *C.AVFrame)
return self, nil
}
//Print detailed information about the input or output format, such as duration, bitrate, streams, container, programs, metadata, side data, codec and time base.
func (s *Context) AvDumpFormat(i int, url string, io int) {
C.av_dump_format((*C.struct_AVFormatContext)(unsafe.Pointer(s)), C.int(i), C.CString(url), C.int(io))
}
func dump_format(ctx *FormatContext) {
C.av_dump_format(ctx.ctx, 0, nil, 1)
}
func (this *FmtCtx) Dump() {
cfilename := C.CString(this.ofmt.Filename)
defer C.free(unsafe.Pointer(cfilename))
C.av_dump_format(this.avCtx, 0, cfilename, 1)
}
//void av_dump_format (AVFormatContext *ic, int index, const char *url, int is_output)
//Print detailed information about the input or output format, such as duration, bitrate, streams, container, programs, metadata, side data, codec and time base.
func Av_dump_format(ic *AVFormatContext, i int, url string, io int) {
C.av_dump_format((*C.struct_AVFormatContext)(unsafe.Pointer(ic)), C.int(i), C.CString(url), C.int(io))
}
