[vlc-devel] Re: Questions on buffer management ...
massiot at via.ecp.fr
Wed Jun 4 11:20:03 CEST 2003
On Tue, Jun 03, 2003, John Michael Zorko wrote:
> VLC's buffer management confuses me, and the VLC API documentation is
> ... well, often not in sync with the code (for instance, try grepping
> for the decoder FIFO macros). So, could someone explain to me
> basically what the normal path is from some data read from a file (i.e.
> pf_read()), through the input_FillBuffer() / input_ShareBuffer() / etc.
> stuff, and finally ending up in the decoder FIFO?
> As an example, pf_demux() is called often by the input thread, yet
> input_FillBuffer() seems to only be called when there is an actual
> packet to put in the FIFO, the reading seems to happen at the correct
> rate (though grepping for i_mux_rate doesn't seem to lead anywhere
> useful, either). I'm looking for mwait() calls and the like, and I
> don't see any that are related to just reading from a file and filling
> the decoder FIFO.
> How does VLC read the file at the correct rate? That is basically what
> i'm trying to find out -- can anyone illuminate me?
Have a look at src/input/input_clock.c.
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