On 02/23/2016 03:54 PM, Michael Niedermayer wrote:
On Tue, Feb 23, 2016 at 01:41:54PM +0100, Mats Peterson wrote:
On 02/23/2016 01:11 PM, Michael Niedermayer wrote:
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
When is pix_fmt AV_PIX_FMT_NONE in this context? Sorry if I sound
uninitiated.
the pix_fmt describes the decoder output and encoder input
demuxers may set it but do not have to (especially if theres nothing
in their headers that contains that information)
AV_PIX_FMT_NONE is the default if it has not been set
this is documented in the header defining the field (avcodec.h)
[...]
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That sounds overly paranoid. I haven't been able to produce a case where
pix_fmt is AV_PIX_FMT_NONE here.
Please answer the following questions:
1. What about "enum AVPixelFormat pix_fmt = enc->pix_fmt"? What good
does it do? enc->pix_fmt is already a proper AVPixelFormat enum.
2. You say that demuxers might not set the pixel format. This is on the
muxing side though. Isn't the pixel format always set when muxing?
Mats
--
Mats Peterson
http://matsp888.no-ip.org/~mats/
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