On 10/10/2016 01:22 AM, Chris Dreher wrote: > Here is a brief summary of the original questions and their status here > (TL;DR). > > > 1. Once put() is called for OUTPUT_BINARY, is there anyway to go back > and change those bytes?
No. It is a continuous stream, and the producer of that stream has no knowledge of what receives that stream, by design. > 2. Is it acceptable to buffer most of the file data and then just output > the entire file at the end? No. That violates the principle that everything in sigrok (libsigrok and libsigrokdecode) is a continuous stream. I realize that is not so easy to do with e.g. file formats that simply don't permit this, but in such cases it's perhaps worth thinking whether that file format is a good match for sigrok processing to begin with. It has not been a big problem so far. > 3. Is there a way to know that the end of the sample input stream has > been reached? No. The interface from a frontend to a PD is srd_session_send(), which takes a raw buffer of logic data. If this were to be changed to be more like libsigrok, which sends packets with corresponding packet type, this would be more flexible. For example a packet type similar to libsigrok's SR_DF_END could be used to help here. Another way to do this, though not as elegant as the above solution, would be to add a meta packet type to signal the end of the stream. > 4. (new question) Can put()'s parameters of startsample and endsample be > used to insert data earlier into the file output or are these parameters > ignored because the order of calls to put() determine the order bytes are > output? No. You can not expect any listener to that stream to be able to handle this, nor should you. Don't mean to sound negative, but hey, straight answers :-) -- Bert Vermeulen b...@biot.com ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ sigrok-devel mailing list sigrok-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sigrok-devel
