[Cin] mediacodec and qsv not really hwaccels ?

[Phyllis Smith]

Andrew, I am going to see if I can muddle through this tomorrow and
reproduce or get some understanding.

On Mon, Sep 23, 2024 at 3:53 PM Andrew Randrianasulu via Cin <
cin at lists.cinelerra-gg.org> wrote:

> I tried to trivially add qsv/mediacodec decode to cinelerra-gg, but
> discovered that I can't use it like vaapi/vdpau/cuda because (?)
> qsv/mediacodec not listed in
>
> ffmpeg/libavcodec/hwconfig.h
> and (for h264) in
> ffmpeg/libavcodec/h264dec.c
>
> so on decoding I get (in termux, cingg compiled with system ffmpeg)
>
>
> Decoder h264 does not support device type mediacodec.
>
> HW device init failed, using SW decode.
> file:/data/data/com.termux/files/home/20210419_055507A.mp4
> err: Operation not permitted
>
> yet ffmpeg -hwaccel show
>
> ~/cinelerra/cinelerra-5.1 $ ffmpeg -hwaccels
>
>  ffmpeg version 6.1.2 Copyright (c) 2000-2024 the FFmpeg developers
>
> built with Android (12027248, +pgo, +bolt, +lto, +mlgo, based on r522817)
> clang version 18.0.1 (
> https://android.googlesource.com/toolchain/llvm-project
> d8003a456d14a3deb8054cdaa529ffbf02d9b262)     configuration: --arch=aarch64
> --as=aarch64-linux-android-clang --cc=aarch64-linux-android-clang
> --cxx=aarch64-linux-android-clang++ --nm=llvm-nm
> --pkg-config=/home/builder/.termux-build/_cache/android-r27-api-24-v1/bin/pkg-config
> --strip=llvm-strip --cross-prefix=aarch64-linux-android- --disable-indevs
> --disable-outdevs --enable-indev=lavfi --disable-static --disable-symver
> --enable-cross-compile --enable-gnutls --enable-gpl --enable-version3
> --enable-jni --enable-lcms2 --enable-libaom --enable-libass
> --enable-libbluray --enable-libdav1d --enable-libfontconfig
> --enable-libfreetype --enable-libfribidi --enable-libgme
> --enable-libharfbuzz --enable-libmp3lame --enable-libopencore-amrnb
> --enable-libopencore-amrwb --enable-libopenmpt --enable-libopus
> --enable-librav1e --enable-libsoxr --enable-libsrt --enable-libssh
> --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab
> --enable-libvmaf --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
> --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2
> --enable-libxvid --enable-libzimg --enable-mediacodec --enable-opencl
> --enable-shared --prefix=/data/data/com.termux/files/usr
> --target-os=android --extra-libs=-landroid-glob --disable-vulkan
> --enable-neon --disable-libfdk-aac                   libavutil      58.
> 29.100 / 58. 29.100
>
> libavcodec     60. 31.102 / 60. 31.102
>
> libavformat    60. 16.100 / 60. 16.100
>
>  libavdevice    60.  3.100 / 60.  3.100
>
> libavfilter     9. 12.100 /  9. 12.100
>
> libswscale      7.  5.100 /  7.  5.100
>
> libswresample   4. 12.100 /  4. 12.100
>
> libpostproc    57.  3.100 / 57.  3.100
>
> Hardware acceleration methods:
> opencl
>                   mediacodec
>
> ===
>
> is it oversight or some more fundamental limitation?
> --
> Cin mailing list
> Cin at lists.cinelerra-gg.org
> https://lists.cinelerra-gg.org/mailman/listinfo/cin
>
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