[vlc-devel] [RFC 1/2] avcodec: encoder: Always provide frame dimension and pixel format
hugo at beauzee.fr
Tue Mar 29 14:28:36 CEST 2016
On 03/29/2016 01:34 PM, Vittorio Giovara wrote:
> On Mon, Mar 28, 2016 at 2:28 PM, Hugo Beauzée-Luyssen <hugo at beauzee.fr> wrote:
>> av_frame_unref will clear most of the frame fields, including dimension
>> & pixel format.
> Where does that happen?
-> libavutil/frame.c:306 (av_frame_unref)
-> libavutil/frame.c:34 (get_frame_defaults)
which memset the entire frame to 0, and explicitely sets the format to -1
>> This causes some encoders (at least the raw encoder) to
>> reject the frame.
> Some encoders or the raw encoder exclusively? If the latter, a bug in
> the lavc encoder seems more likely.
I'll need to write a sample to run more tests and be able to reply to this
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