diff options
Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 7 |
1 files changed, 3 insertions, 4 deletions
@@ -18,7 +18,7 @@ request to the driver via the V4L2 API. * Gralloc support for graphic buffer allocation * ION or Gralloc support for linear buffer allocation -* DRM for buffer identification +* Kernel v5.3+ or [this patch][1] backported for buffer identification * [V4L2 stateful decoding API](https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/dev-decoder.html) * [V4L2 encoding API](https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/dev-encoder.html) * Widevine DRM for secure playback @@ -47,12 +47,9 @@ PRODUCT_COPY_FILES += \ <path_to_file>:$(TARGET_COPY_OUT_VENDOR)/etc/media_codecs_c2.xml # Set the customized property of v4l2_codec2, including: -# - The DRM device name and path pattern. # - The maximum concurrent instances for decoder/encoder. # It should be the same as "concurrent-instances" at media_codec_c2.xml. PRODUCT_PROPERTY_OVERRIDES += \ - ro.vendor.v4l2_codec2.drm_device_name=virtio_gpu \ - ro.vendor.v4l2_codec2.drm_device_path=/dev/dri/renderD* \ ro.vendor.v4l2_codec2.decode_concurrent_instances=8 \ ro.vendor.v4l2_codec2.encode_concurrent_instances=8 @@ -364,3 +361,5 @@ PPS NAL units are prepended to IDR frames by enabling the *V4L2_CID_MPEG_VIDEO_PREPEND_SPSPPS_TO_IDR* control. If the V4L2 driver does not support this control the encoder will manually cache and prepend SPS and PPS NAL units. + +[1]: https://android.googlesource.com/kernel/common/+/ed63bb1d1f8469586006a9ca63c42344401aa2ab |