From patchwork Thu Apr 4 12:26:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 10885531 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EA4811669 for ; Thu, 4 Apr 2019 12:26:20 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D85D128A6E for ; Thu, 4 Apr 2019 12:26:20 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CC19A28A74; Thu, 4 Apr 2019 12:26:20 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6382C28A6E for ; Thu, 4 Apr 2019 12:26:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729307AbfDDM0S (ORCPT ); Thu, 4 Apr 2019 08:26:18 -0400 Received: from relay8-d.mail.gandi.net ([217.70.183.201]:54171 "EHLO relay8-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728479AbfDDM0S (ORCPT ); Thu, 4 Apr 2019 08:26:18 -0400 X-Originating-IP: 90.88.30.125 Received: from localhost (aaubervilliers-681-1-89-125.w90-88.abo.wanadoo.fr [90.88.30.125]) (Authenticated sender: maxime.ripard@bootlin.com) by relay8-d.mail.gandi.net (Postfix) with ESMTPSA id A2AD11BF204; Thu, 4 Apr 2019 12:26:13 +0000 (UTC) From: Maxime Ripard To: hans.verkuil@cisco.com, acourbot@chromium.org, sakari.ailus@linux.intel.com, Laurent Pinchart Cc: tfiga@chromium.org, posciak@chromium.org, Paul Kocialkowski , Chen-Yu Tsai , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org, nicolas.dufresne@collabora.com, jenskuske@gmail.com, jernej.skrabec@gmail.com, jonas@kwiboo.se, ezequiel@collabora.com, linux-sunxi@googlegroups.com, Thomas Petazzoni , Maxime Ripard Subject: [PATCH RESEND v7 0/2] media: cedrus: Add H264 decoding support Date: Thu, 4 Apr 2019 14:26:09 +0200 Message-Id: X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Hi, Here is a new version of the H264 decoding support in the cedrus driver. As you might already know, the cedrus driver relies on the Request API, and is a reverse engineered driver for the video decoding engine found on the Allwinner SoCs. This work has been possible thanks to the work done by the people behind libvdpau-sunxi found here: https://github.com/linux-sunxi/libvdpau-sunxi/ I've tested the various ABI using this gdb script: http://code.bulix.org/jl4se4-505620?raw And this test script: http://code.bulix.org/8zle4s-505623?raw The application compiled is quite trivial: http://code.bulix.org/e34zp8-505624?raw The output is: arm64: builds/arm64-test-v4l2-h264-structures SHA1: 1c48d3868ac9049c6b5efed43a74bf97af710aba x86: builds/x86-test-v4l2-h264-structures SHA1: 1c48d3868ac9049c6b5efed43a74bf97af710aba arm: builds/arm-test-v4l2-h264-structures SHA1: 1c48d3868ac9049c6b5efed43a74bf97af710aba x64: builds/x64-test-v4l2-h264-structures SHA1: 1c48d3868ac9049c6b5efed43a74bf97af710aba Let me know if there's any flaw using that test setup, or if you have any comments on the patches. Maxime Changes from v6: - Rebased on next - Renamed the timestamp DPB field to reference_ts - Fixed the collision of control type values - Removed unused fields - Fixed the structure layout that was broken on x86 by reducing the num_slices and nal_ref_idc to 16 bits instead of 32 Changes from v5: - Made the references to the H264 spec more explicit - Added a flag for the IDR pic - Fixed typos - Rebased on v5.1-rc1 Changes from v4: - Changed the luma and chroma weight and offset from s8 to s16 - Adjusted chroma and luma denominators masks in the driver - Casted the luma and chroma offset to prevent an overflow - ALways write the interrupt status register - Fix a bug in the sram write routine that would write something even if the length was 0 - Make the scaling lists mandatory - Made the reference list order explicit in the documentation - Made the fact that the slice structure can be an array - Renamed the slice format to V4L2_PIX_FMT_H264_SLICE_RAW - Rebased on Hans' tag br-v5.1s Changes from v3: - Reintroduced long term reference flag and documented it - Reintroduced ref_pic_list_p0/b0/b1 and documented it - Documented the DPB flags - Treat the scaling matrix as optional in the driver, as documented - Free the neighbor buffer - Increase the control IDs by a large margin to be safe of collisions - Reorder the fields documentation according to the structure layout - Change the tag documentation by the timestamp - Convert the sram array to size_t - Simplify the buffer retrieval from timestamp - Rebase Changes from v2: - Simplified _cedrus_write_ref_list as suggested by Jernej - Set whether the frame is used as reference using nal_ref_idc - Respect chroma_format_idc - Fixes for the scaling list and prediction tables - Wrote the documentation for the flags - Added a bunch of defines to the driver bit fields - Reworded the controls and data format descriptions as suggested by Hans - Reworked the controls' structure field size to avoid padding - Removed the long term reference flag - Reintroduced the neighbor info buffer - Removed the ref_pic_list_p0/b0/b1 arrays that are redundant with the one in the DPB - used the timestamps instead of tags - Rebased on 5.0-rc1 Changes from v1: - Rebased on 4.20 - Did the documentation for the userspace API - Used the tags instead of buffer IDs - Added a comment to explain why we still needed the swdec trigger - Reworked the MV col buffer in order to have one slot per frame - Removed the unused neighbor info buffer - Made sure to have the same structure offset and alignments across 32 bits and 64 bits architecture Maxime Ripard (1): media: cedrus: Add H264 decoding support Pawel Osciak (1): media: uapi: Add H264 low-level decoder API compound controls. Documentation/media/uapi/v4l/biblio.rst | 9 +- Documentation/media/uapi/v4l/ext-ctrls-codec.rst | 569 ++++++++++++++- Documentation/media/uapi/v4l/pixfmt-compressed.rst | 19 +- Documentation/media/uapi/v4l/vidioc-queryctrl.rst | 30 +- Documentation/media/videodev2.h.rst.exceptions | 5 +- drivers/media/v4l2-core/v4l2-ctrls.c | 42 +- drivers/media/v4l2-core/v4l2-ioctl.c | 1 +- drivers/staging/media/sunxi/cedrus/Makefile | 3 +- drivers/staging/media/sunxi/cedrus/cedrus.c | 31 +- drivers/staging/media/sunxi/cedrus/cedrus.h | 38 +- drivers/staging/media/sunxi/cedrus/cedrus_dec.c | 13 +- drivers/staging/media/sunxi/cedrus/cedrus_h264.c | 574 ++++++++++++++- drivers/staging/media/sunxi/cedrus/cedrus_hw.c | 4 +- drivers/staging/media/sunxi/cedrus/cedrus_regs.h | 91 ++- drivers/staging/media/sunxi/cedrus/cedrus_video.c | 9 +- include/media/h264-ctrls.h | 192 +++++- include/media/v4l2-ctrls.h | 13 +- include/uapi/linux/videodev2.h | 1 +- 18 files changed, 1641 insertions(+), 3 deletions(-) create mode 100644 drivers/staging/media/sunxi/cedrus/cedrus_h264.c create mode 100644 include/media/h264-ctrls.h base-commit: 61de49cb596710b918f7a80839f0b6de2017bc32