From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7CE1BC48BD6 for ; Thu, 27 Jun 2019 09:33:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4DE0E2083B for ; Thu, 27 Jun 2019 09:33:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726382AbfF0JdX (ORCPT ); Thu, 27 Jun 2019 05:33:23 -0400 Received: from relay8-d.mail.gandi.net ([217.70.183.201]:41455 "EHLO relay8-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725385AbfF0JdX (ORCPT ); Thu, 27 Jun 2019 05:33:23 -0400 X-Originating-IP: 86.250.200.211 Received: from aptenodytes (lfbn-1-17395-211.w86-250.abo.wanadoo.fr [86.250.200.211]) (Authenticated sender: paul.kocialkowski@bootlin.com) by relay8-d.mail.gandi.net (Postfix) with ESMTPSA id 1082C1BF206; Thu, 27 Jun 2019 09:33:15 +0000 (UTC) Date: Thu, 27 Jun 2019 11:33:15 +0200 From: Paul Kocialkowski To: Ezequiel Garcia Cc: linux-media@vger.kernel.org, Hans Verkuil , kernel@collabora.com, Alexandre Courbot , Tomasz Figa , Pawel Osciak Subject: Re: [RFC] media: uapi: Add VP8 low-level decoder API compound controls. Message-ID: <20190627093315.GA26629@aptenodytes> References: <20190213211557.17696-1-ezequiel@collabora.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20190213211557.17696-1-ezequiel@collabora.com> User-Agent: Mutt/1.12.1 (2019-06-15) Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Hi, On Wed 13 Feb 19, 18:15, Ezequiel Garcia wrote: > From: Pawel Osciak > > These controls are to be used with the new low-level decoder API for VP8 > to provide additional parameters for the hardware that cannot parse the > input stream. > > Signed-off-by: Pawel Osciak > [ezequiel: rebased] > Signed-off-by: Ezequiel Garcia > --- > As the H.264 interface is hopefully close to be merged, > I'm sending the VP8 interface to start this discussion. > > drivers/media/v4l2-core/v4l2-ctrls.c | 7 ++ > drivers/media/v4l2-core/v4l2-ioctl.c | 1 + > include/media/v4l2-ctrls.h | 3 + > include/media/vp8-ctrls.h | 104 +++++++++++++++++++++++++++ > include/uapi/linux/videodev2.h | 1 + > 5 files changed, 116 insertions(+) > create mode 100644 include/media/vp8-ctrls.h > > diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c > index 366200d31bc0..c77a56c3e2aa 100644 > --- a/drivers/media/v4l2-core/v4l2-ctrls.c > +++ b/drivers/media/v4l2-core/v4l2-ctrls.c > @@ -869,6 +869,7 @@ const char *v4l2_ctrl_get_name(u32 id) > case V4L2_CID_MPEG_VIDEO_VPX_P_FRAME_QP: return "VPX P-Frame QP Value"; > case V4L2_CID_MPEG_VIDEO_VP8_PROFILE: return "VP8 Profile"; > case V4L2_CID_MPEG_VIDEO_VP9_PROFILE: return "VP9 Profile"; > + case V4L2_CID_MPEG_VIDEO_VP8_FRAME_HDR: return "VP8 Frame Header"; Could we call this _FRAME_HEADER to match the control name? I find it quite handy to have the ctrl definitions and associated structures named in sync. > > /* HEVC controls */ > case V4L2_CID_MPEG_VIDEO_HEVC_I_FRAME_QP: return "HEVC I-Frame QP Value"; > @@ -1323,6 +1324,9 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, > case V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAMS: > *type = V4L2_CTRL_TYPE_H264_DECODE_PARAMS; > break; > + case V4L2_CID_MPEG_VIDEO_VP8_FRAME_HDR: > + *type = V4L2_CTRL_TYPE_VP8_FRAME_HDR; > + break; > default: > *type = V4L2_CTRL_TYPE_INTEGER; > break; > @@ -1694,6 +1698,7 @@ static int std_validate(const struct v4l2_ctrl *ctrl, u32 idx, > case V4L2_CTRL_TYPE_H264_SCALING_MATRIX: > case V4L2_CTRL_TYPE_H264_SLICE_PARAMS: > case V4L2_CTRL_TYPE_H264_DECODE_PARAMS: > + case V4L2_CTRL_TYPE_VP8_FRAME_HDR: > return 0; > > default: > @@ -2290,6 +2295,8 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl, > break; > case V4L2_CTRL_TYPE_H264_DECODE_PARAMS: > elem_size = sizeof(struct v4l2_ctrl_h264_decode_param); > + case V4L2_CTRL_TYPE_VP8_FRAME_HDR: > + elem_size = sizeof(struct v4l2_ctrl_vp8_frame_header); > break; > default: > if (type < V4L2_CTRL_COMPOUND_TYPES) > diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c > index c765c7c7c562..ea295aa9d0b6 100644 > --- a/drivers/media/v4l2-core/v4l2-ioctl.c > +++ b/drivers/media/v4l2-core/v4l2-ioctl.c > @@ -1324,6 +1324,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) > case V4L2_PIX_FMT_VC1_ANNEX_G: descr = "VC-1 (SMPTE 412M Annex G)"; break; > case V4L2_PIX_FMT_VC1_ANNEX_L: descr = "VC-1 (SMPTE 412M Annex L)"; break; > case V4L2_PIX_FMT_VP8: descr = "VP8"; break; > + case V4L2_PIX_FMT_VP8_FRAME: descr = "VP8 FRAME"; break; I'm not familiar with VP8 at all, but are we guaranteed that only per-frame decoding mode is possible? > case V4L2_PIX_FMT_VP9: descr = "VP9"; break; > case V4L2_PIX_FMT_HEVC: descr = "HEVC"; break; /* aka H.265 */ > case V4L2_PIX_FMT_FWHT: descr = "FWHT"; break; /* used in vicodec */ > diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h > index 22b6d09c4764..183c7fc5d18d 100644 > --- a/include/media/v4l2-ctrls.h > +++ b/include/media/v4l2-ctrls.h > @@ -28,6 +28,7 @@ > */ > #include > #include > +#include > > /* forward references */ > struct file; > @@ -55,6 +56,7 @@ struct poll_table_struct; > * @p_h264_scaling_matrix: Pointer to a struct v4l2_ctrl_h264_scaling_matrix. > * @p_h264_slice_param: Pointer to a struct v4l2_ctrl_h264_slice_param. > * @p_h264_decode_param: Pointer to a struct v4l2_ctrl_h264_decode_param. > + * @p_vp8_frame_header: Pointer to a VP8 frame header structure. > * @p: Pointer to a compound value. > */ > union v4l2_ctrl_ptr { > @@ -71,6 +73,7 @@ union v4l2_ctrl_ptr { > struct v4l2_ctrl_h264_scaling_matrix *p_h264_scaling_matrix; > struct v4l2_ctrl_h264_slice_param *p_h264_slice_param; > struct v4l2_ctrl_h264_decode_param *p_h264_decode_param; > + struct v4l2_ctrl_vp8_frame_header *p_vp8_frame_header; > void *p; > }; > > diff --git a/include/media/vp8-ctrls.h b/include/media/vp8-ctrls.h > new file mode 100644 > index 000000000000..95b63a0cb239 > --- /dev/null > +++ b/include/media/vp8-ctrls.h > @@ -0,0 +1,104 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > +/* > + * TODO: Make sure structs have no holes and are 4-byte aligned. > + */ > + > +#ifndef _VP8_CTRLS_H_ > +#define _VP8_CTRLS_H_ > + > +#include > + > +#define V4L2_CID_MPEG_VIDEO_VP8_FRAME_HDR (V4L2_CID_MPEG_BASE + 260) > + > +#define V4L2_CTRL_TYPE_VP8_FRAME_HDR 0x220 > + > +#define V4L2_VP8_SEGMNT_HDR_FLAG_ENABLED 0x01 > +#define V4L2_VP8_SEGMNT_HDR_FLAG_UPDATE_MAP 0x02 > +#define V4L2_VP8_SEGMNT_HDR_FLAG_UPDATE_FEATURE_DATA 0x04 > + > +struct v4l2_vp8_segment_header { > + __u8 segment_feature_mode; > + __s8 quant_update[4]; > + __s8 lf_update[4]; > + __u8 segment_probs[3]; > + __u32 flags; > +}; > + > +#define V4L2_VP8_LF_HDR_ADJ_ENABLE 0x01 > +#define V4L2_VP8_LF_HDR_DELTA_UPDATE 0x02 > +struct v4l2_vp8_loopfilter_header { > + __u16 type; > + __u8 level; > + __u8 sharpness_level; > + __s8 ref_frm_delta_magnitude[4]; > + __s8 mb_mode_delta_magnitude[4]; > + __u16 flags; > +}; > + > +struct v4l2_vp8_quantization_header { > + __u8 y_ac_qi; > + __s8 y_dc_delta; > + __s8 y2_dc_delta; > + __s8 y2_ac_delta; > + __s8 uv_dc_delta; > + __s8 uv_ac_delta; > + __u16 dequant_factors[4][3][2]; > +}; > + > +struct v4l2_vp8_entropy_header { > + __u8 coeff_probs[4][8][3][11]; > + __u8 y_mode_probs[4]; > + __u8 uv_mode_probs[3]; > + __u8 mv_probs[2][19]; > +}; > + > +#define V4L2_VP8_FRAME_HDR_FLAG_EXPERIMENTAL 0x01 > +#define V4L2_VP8_FRAME_HDR_FLAG_SHOW_FRAME 0x02 > +#define V4L2_VP8_FRAME_HDR_FLAG_MB_NO_SKIP_COEFF 0x04 > +struct v4l2_ctrl_vp8_frame_header { > + /* 0: keyframe, 1: not a keyframe */ > + __u8 key_frame; // could be a flag? > + __u8 version; > + > + /* Populated also if not a key frame */ > + __u16 width; > + __u16 height; > + __u8 horizontal_scale; > + __u8 vertical_scale; > + > + struct v4l2_vp8_segment_header segment_header; > + struct v4l2_vp8_loopfilter_header lf_header; > + struct v4l2_vp8_quantization_header quant_header; > + struct v4l2_vp8_entropy_header entropy_header; > + > + __u8 sign_bias_golden; > + __u8 sign_bias_alternate; > + > + __u8 prob_skip_false; > + __u8 prob_intra; > + __u8 prob_last; > + __u8 prob_gf; > + > + __u32 first_part_size; > + __u32 first_part_offset; // this needed? it's always 3 + 7 * s->keyframe; > + /* > + * Offset in bits of MB data in first partition, > + * i.e. bit offset starting from first_part_offset. > + */ > + __u32 macroblock_bit_offset; > + > + __u8 num_dct_parts; > + __u32 dct_part_sizes[8]; > + > + __u8 bool_dec_range; > + __u8 bool_dec_value; > + __u8 bool_dec_count; > + > + __u64 last_frame_ts; > + __u64 golden_frame_ts; > + __u64 alt_frame_ts; > + > + __u8 flags; > +}; > + > +#endif > diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h > index f6a484017208..a906bfc0c8f0 100644 > --- a/include/uapi/linux/videodev2.h > +++ b/include/uapi/linux/videodev2.h > @@ -664,6 +664,7 @@ struct v4l2_pix_format { > #define V4L2_PIX_FMT_VC1_ANNEX_G v4l2_fourcc('V', 'C', '1', 'G') /* SMPTE 421M Annex G compliant stream */ > #define V4L2_PIX_FMT_VC1_ANNEX_L v4l2_fourcc('V', 'C', '1', 'L') /* SMPTE 421M Annex L compliant stream */ > #define V4L2_PIX_FMT_VP8 v4l2_fourcc('V', 'P', '8', '0') /* VP8 */ > +#define V4L2_PIX_FMT_VP8_FRAME v4l2_fourcc('V', 'P', '8', 'F') /* VP8 parsed frames */ Could we have this as part of the private API for now? Cheers, Paul > #define V4L2_PIX_FMT_VP9 v4l2_fourcc('V', 'P', '9', '0') /* VP9 */ > #define V4L2_PIX_FMT_HEVC v4l2_fourcc('H', 'E', 'V', 'C') /* HEVC aka H.265 */ > #define V4L2_PIX_FMT_FWHT v4l2_fourcc('F', 'W', 'H', 'T') /* Fast Walsh Hadamard Transform (vicodec) */ > -- > 2.20.1 > -- Paul Kocialkowski, Bootlin Embedded Linux and kernel engineering https://bootlin.com