//export OpenMediaFile
func OpenMediaFile(filename string) {
println("try openning the media file ")
println(filename)
cfilename := C.CString(filename)
C.avcodec_register_all()
C.av_register_all()
ctx := C.avformat_alloc_context()
result := C.av_open_input_file(&ctx, cfilename, nil, 0, nil)
println(result)
result = C.av_find_stream_info(ctx)
C.free(unsafe.Pointer(cfilename))
C.av_close_input_file(ctx)
//C.free(unsafe.Pointer(ctx));
}
func (src *DataSource) Connect() bool {
src.Valid = false
cfilename := C.CString(src.Locator.Filename)
src.Ctx = C.avformat_alloc_context()
result := C.av_open_input_file(&src.Ctx, cfilename, nil, 0, nil)
C.free(unsafe.Pointer(cfilename))
if result != 0 {
return src.Valid
}
result = C.av_find_stream_info(src.Ctx)
if result < 0 {
return src.Valid
}
src.Valid = true
return src.Valid
}
func av_find_stream_info(ctx *FormatContext) int {
return int(C.av_find_stream_info(ctx.ctx))
}