[FFmpeg-devel] multiple stream detection in libavformat vs. thread locking
Ronald S. Bultje
rsbultje
Sun Dec 7 21:45:28 CET 2008
Hi,
On Sun, Dec 7, 2008 at 2:37 PM, Michael Niedermayer <michaelni at gmx.at> wrote:
> which codec needs thread synced open/close anyway?
Any codec using global initialized data.
static init=0;
if (!init) {
init=1; // case 1
init_data();
//init=1; // case 2
}
In case of context switch in init_data(), you get either memleaks
(case 2) or crashers when accessing that data (case 1).
Ronald
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