[FFmpeg-devel] [PATCH] pkt_pts reordering (original) (raw)

Michael Niedermayer michaelni
Mon Jan 10 19:00:23 CET 2011

On Mon, Jan 10, 2011 at 05:57:55PM +0100, Luca Barbato wrote:

On 01/10/2011 05:29 PM, Jean-Daniel Dupas wrote: > > Le 10 janv. 2011 ? 17:13, Luca Barbato a ?crit : > >> On 01/10/2011 05:01 PM, Vladimir Pantelic wrote: >>> since the actual reordering of timestamps has shifted to pktpts, >>> we can use the existing reorderedopaque just as it is and maybe >>> convert it to void*... >> >> The union has the added bonus of being big enough to fit more than a >> void * alone. > > Don't rely on this, it may not be true on 64 bit plateforms.

You want to have at least 64bit so an union gives you that. Being able to store a pointer or a double safely is the key point. (e.g. 80bit float)

we can always store a double in int64_t, the amount of bits in mantisse and exponent fit in 64bit always even if a native double on a platform needs more bits

[...]

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