I posted the below questions to the dev list with out any help. I'm hoping some one on the user list can.
Thanks, Craig ________________________________ From: [email protected] <[email protected]> on behalf of Craig Matsuura <[email protected]> Sent: Monday, September 29, 2014 6:13 PM To: [email protected] Subject: Re: [Linphone-developers] linphone on a DM368 and mediastreamer2 plugins capture encoder Does anyone read this mailing list that knows how to create plugins specifically for the MS_FILTER_ENCODING_CAPTURER? Is there a good example of a encoding capturer? Thanks, Craig ________________________________ From: [email protected] <[email protected]> on behalf of Craig Matsuura <[email protected]> Sent: Monday, September 22, 2014 5:46 PM To: [email protected] Subject: [Linphone-developers] linphone on a DM368 and mediastreamer2 plugins capture encoder We are looking at using linphone on a DM368 IPNC EVM Camera. I'm investigating creating a plugin for a TI DM368 using the IPNC Appro camera EVM. Video capture and encoding is done with a process on the EVM called av_server and they have a custom interface to capture encoded frames. They have sample code for interfacing to the capture/encoder and I wanted to port this interface as a MS2 plugin. My understanding of the interface is limited as I did not author the interface but I do have source as it is all open source. (The leverage live555 wis-streamer and have created a interface for the wis-streamer). The encoder is a H264. I have started my plugin buy looking at the x264 plugin, however this is an encoder only. I also have looked at the v4l2 and nowebcam plugins as references (these are capture plugins). I'm not find much documentation on creating a capture encoder plugin but found a category type MS_FILTER_ENCODING_CAPTURER, which implies the plugin can do capture and encoding. I'm unsure of a few things and was hoping someone could point me in the right direction. 1. Which methods do I need to implement ( at a minimum to create a encoder/capture plugin) * There are several methods for a capture and encoder, clarification on each method would be helpful. 2. In the MSFilterDesc are there ninputs=0 and noutputs=1? 3. When should I use preprocess/process and postprocess in regards to the frames? (I hope this question makes sense) 4. Since the HW decoder on the DM368 is H264, I assume the MSFilterDesc.enc_fmt is "H264" 5. MSFilterDesc.id = MS_FILTER_PLUGIN_ID? 6. How do I added a MSWebcam device, I assume this will also be provided as it is a capture and encoder plugin. Looking at the msv4l2 plugin it was unclear to me how you add the camera and which methods I need to implement for a capture/encoder plugin. I would really appreciate some help and if this is the wrong place to post such a question, please help me get this posted in the right place.
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