[FFmpeg-devel] [PATCH] pthread_frame: save the FF_DEBUG_THREADS option in FrameThreadContext.

Wan-Teh Chang wtc at google.com
Mon Jul 10 20:28:06 EEST 2017

On Sat, Jul 8, 2017 at 3:49 PM, Michael Niedermayer
<michael at niedermayer.cc> wrote:
> On Sat, Jul 08, 2017 at 03:38:11PM -0700, Wan-Teh Chang wrote:
>> Hi Ronald,
>> On Sat, Jul 8, 2017 at 2:33 PM, Ronald S. Bultje <rsbultje at gmail.com> wrote:
>> >
>> > I can see the design from the patch.
>> >
>> > What's missing is a justification for the downside of the design, which is
>> > that updates to this variable by the user are no longer propagated to the
>> > worker threads.
>> My justification is the YAGNI principle.
>> Although the current code allows the FF_DEBUG_THREADS option to be
>> toggled dynamically, I believe that was not intended, and I believe
>> nobody actually does that. In my (admittedly limited) code search, I
>> only see the FF_DEBUG_THREADS option set via the -debug thread_ops
>> command-line option.
> ffmpeg (the command line tool) allows changing the AVCodecContext->debug
> value at runtime

Thank you. I abandoned this patch and wrote a new patch. Please see

Wan-Teh Chang

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