On 09/03/2017 02:53 PM, Mark Thompson wrote:
On 03/09/17 13:20, Jorge Ramirez wrote:
On 09/03/2017 02:27 AM, Mark Thompson wrote:
+# check V4L2 codecs available in the API
check_header linux/fb.h
check_header linux/videodev.h
check_header linux/videodev2.h
check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width =
0;" && enable_safe struct_v4l2_frmivalenum_discrete
+check_code cc linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE |
V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;" || disable v4l2_m2m
+check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;" && enable
vc1_v4l2_m2m
+check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;" && enable
mpeg1_v4l2_m2m
+check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;" && enable
mpeg2_v4l2_m2m
+check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;" && enable
mpeg4_v4l2_m2m
+check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;" && enable
hevc_v4l2_m2m
+check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H263;" && enable
h263_v4l2_m2m
+check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H264;" && enable
h264_v4l2_m2m
+check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;" && enable
vp8_v4l2_m2m
+check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;" && enable
vp9_v4l2_m2m
I think these need to appear as named config options somewhere. It doesn't
currently detect anything for me, even with e.g. --enable-v4l2-m2m
--enable-encoder=h264_v4l2m2m.
I dont think that would bring much value to be honest: since the ffmpeg project
doesn't contain a copy of linux/videodev2.h - something strongly rejected by
the maintainers - forcing the options would just cause a build error so you
would not gain anything.
do you have videodev2.h in your system? (in /usr/include/linux for instance)
Yes, it detected correctly in a previous version of the patch. I think it
might be something to do with the recent build system updates - maybe rebase
and try again yourself.
yes after rebasing today a configure line that enabled the setting by
default was removed.
on a previous post is the culprit:
[...]
On 09/03/2017 02:27 AM, Mark Thompson wrote:
# Enable hwaccels by default.
-enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
+enable_weak d3d11va dxva2 vaapi v4l2_m2m vda vdpau videotoolbox_hwaccel xvmc
[This line has disappeared on rebase.]
ok, just rebased today and saw that happening (didnt happen yesterday)
shall I add v4l2_m2m to the HWACCEL_AUTODETECT_LIBRARYLIST or should I
add a enable_weak line just for v4l2_m2m?
[...]
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