Thank you. One problem thought. I read 7*188 bytes from input and output 188 byte each time. but when the indexer read 7th frame (last 188 bytes of 188*7 bytes) I get this error: Bad TS sync byte: 0x0 But when I drop the last frame each time, indexing works and it seems that it generates a correct one. Am i doing it right. Thanks again.
On Tue, Nov 2, 2010 at 6:15 PM, Ross Finlayson <[email protected]>wrote: > I am trying to capture a live stream (which is MPEG2TS) via openRTSP and >> instead of recording it in 'video-MP2T-1', index the received video >> on-live. >> >> FramedSource* video1 = sources[0]; //I caught it from MediaSubsession >> MediaSink* outputIndexerSink = FileSink::createNew(*env, "out.tsx"); >> FramedSource* indexer = MPEG2IFrameIndexFromTransportS >> tream::createNew(*env, video1); >> >> outputIndexerSink->startPlaying(*indexer, subsessionAfterPlaying, NULL); >> >> when I run it, I get these errors: >> MultiFramedRTPSource::doGetNextFrame1(): The total received frame size >> exceeds the client's buffer size (188). 940 bytes of trailing data will be >> dropped! >> >> what seems to be the problem? >> > > In principle, what you are doing is exactly right. In practice, though, > the problem is that the "MPEG2IFrameIndexFromTransportStream" object reads > just one 188-byte MPEG Transport 'packet' at a time, into a 188-byte buffer. > However, the upstream object "SimpleRTPSource" (a subclass of > "MultiFramedRTPSource") delivers a whole network packet's worth of data, > which is usually much larger. > > To overcome this, you will need to write a new filter object and insert it > between "video1" and "indexer" in your code. This filter object will be of > a subclass of "FramedFilter" that you'll need to write yourself. It will > read network packet data into a large buffer, and deliver - from this buffer > - 188-byte MPEG Transport 'packets', one-at-a-time, to its downstream reader > ("indexer"). > -- > > Ross Finlayson > Live Networks, Inc. > http://www.live555.com/ > _______________________________________________ > live-devel mailing list > [email protected] > http://lists.live555.com/mailman/listinfo/live-devel >
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