Hi, Zhao Liang-E3423C wrote: > Hi all, > > On embedded device, DSP is used widely, many DSPs have different > features, for example: > > 1. decoder > DSP is just a hardware decoder > 2. decoder + sink > DSP is a decoder plus sink, it can directly accept encoded data, and > then decode it and render pcm data into audio device directly. creating a sink with right caps should be enough for this one... > 3. A/V sync > DSP can do A/V sync internally or not. then you can ask basesink not to synchronize flows. > > There may be more features i don't list. For these features, how can > we implement them by gstreamer? > > For case 1, I think it is esay to do by gstreamer, but for each 2 and > 3, it seems gstreamer has no available resources to define these > application. So I think we can discuss these topics and find a good > solution. > > BTW, I find a project in gst - "gst-openmax", it is using openmax as > low level implementation, but it also has some limitation, for > example, no solution for case 2, and we must have openmax > implementation for special DSP firstly. > > I hope we can have top level solution for DSP in despite of the low > level implementation, just link gstbasesink virtual class, but all > interfaces or virtual functions are defined to handle all the use cases. -- Benoit Fouet Purple Labs S.A. www.purplelabs.com
