7d711563ab
this version of ffmpeg has patches related to v4l2-requests which enable hw decoding for Rockchip SoCs
150 lines
5.2 KiB
C
150 lines
5.2 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_V4L2_REQUEST_H
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#define AVCODEC_V4L2_REQUEST_H
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#include <stdatomic.h>
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#include <stdbool.h>
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#include <linux/videodev2.h>
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#include "libavutil/hwcontext_drm.h"
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#include "libavutil/thread.h"
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// Below defines are custom patch from Collabora, as these are not included in the current AOSP, So better just
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// here rather than messing with the headers in the AOSP build system. by - Venkata Atchuta Bheemeswara Sarma Darbha
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#define V4L2_CID_STATELESS_HEVC_EXT_SPS_ST_RPS (V4L2_CID_CODEC_STATELESS_BASE + 408)
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#define V4L2_CID_STATELESS_HEVC_EXT_SPS_LT_RPS (V4L2_CID_CODEC_STATELESS_BASE + 409)
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#define V4L2_HEVC_EXT_SPS_ST_RPS_FLAG_INTER_REF_PIC_SET_PRED 0x1
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#define V4L2_HEVC_EXT_SPS_LT_RPS_FLAG_USED_LT 0x1
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#define V4L2_CTRL_TYPE_HEVC_EXT_SPS_ST_RPS = 0x0275,
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#define V4L2_CTRL_TYPE_HEVC_EXT_SPS_LT_RPS = 0x0276,
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struct v4l2_ctrl_hevc_ext_sps_st_rps {
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__u8 delta_idx_minus1;
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__u8 delta_rps_sign;
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__u16 abs_delta_rps_minus1;
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__u8 num_negative_pics;
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__u8 num_positive_pics;
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__u32 used_by_curr_pic;
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__u32 use_delta_flag;
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__u16 delta_poc_s0_minus1[16];
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__u16 delta_poc_s1_minus1[16];
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__u8 flags;
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};
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/*
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* struct v4l2_ctrl_hevc_ext_sps_lt_rps - HEVC long term RPS parameters
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*
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* Dynamic size 1-dimension array for long term RPS. The number of elements
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* is v4l2_ctrl_hevc_sps::num_long_term_ref_pics_sps. It can contain up to 65 elements.
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*
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* @lt_ref_pic_poc_lsb_sps: picture order count modulo MaxPicOrderCntLsb of the i-th candidate
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* long-term reference picture.
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* @flags: See V4L2_HEVC_EXT_SPS_LT_RPS_FLAG_{}
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*/
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struct v4l2_ctrl_hevc_ext_sps_lt_rps {
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__u16 lt_ref_pic_poc_lsb_sps;
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__u8 flags;
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};
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typedef struct V4L2RequestBuffer {
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int index;
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int fd;
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uint8_t *addr;
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uint32_t width;
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uint32_t height;
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uint32_t size;
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uint32_t used;
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uint32_t capabilities;
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struct v4l2_buffer buffer;
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} V4L2RequestBuffer;
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typedef struct V4L2RequestContext {
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const AVClass *av_class;
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AVBufferRef *device_ref;
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int media_fd;
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int video_fd;
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struct v4l2_format format;
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enum v4l2_buf_type output_type;
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AVMutex mutex;
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V4L2RequestBuffer output[4];
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atomic_int_least8_t next_output;
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atomic_uint_least32_t queued_output;
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atomic_uint_least32_t queued_request;
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atomic_uint_least64_t queued_capture;
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int (*post_probe)(AVCodecContext *avctx);
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} V4L2RequestContext;
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typedef struct V4L2RequestPictureContext {
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V4L2RequestBuffer *output;
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V4L2RequestBuffer *capture;
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} V4L2RequestPictureContext;
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int ff_v4l2_request_query_control(AVCodecContext *avctx,
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struct v4l2_query_ext_ctrl *control);
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int ff_v4l2_request_query_control_default_value(AVCodecContext *avctx,
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uint32_t id);
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int ff_v4l2_request_set_request_controls(V4L2RequestContext *ctx, int request_fd,
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struct v4l2_ext_control *control, int count);
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int ff_v4l2_request_set_controls(AVCodecContext *avctx,
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struct v4l2_ext_control *control, int count);
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int ff_v4l2_request_frame_params(AVCodecContext *avctx,
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AVBufferRef *hw_frames_ctx);
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int ff_v4l2_request_uninit(AVCodecContext *avctx);
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int ff_v4l2_request_init(AVCodecContext *avctx,
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uint32_t pixelformat, uint32_t buffersize,
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struct v4l2_ext_control *control, int count);
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uint64_t ff_v4l2_request_get_capture_timestamp(AVFrame *frame);
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int ff_v4l2_request_append_output(AVCodecContext *avctx,
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V4L2RequestPictureContext *pic,
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const uint8_t *data, uint32_t size);
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int ff_v4l2_request_decode_slice(AVCodecContext *avctx,
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V4L2RequestPictureContext *pic,
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struct v4l2_ext_control *control, int count,
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bool first_slice, bool last_slice);
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int ff_v4l2_request_decode_frame(AVCodecContext *avctx,
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V4L2RequestPictureContext *pic,
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struct v4l2_ext_control *control, int count);
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int ff_v4l2_request_reset_picture(AVCodecContext *avctx,
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V4L2RequestPictureContext *pic);
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int ff_v4l2_request_start_frame(AVCodecContext *avctx,
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V4L2RequestPictureContext *pic, AVFrame *frame);
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void ff_v4l2_request_flush(AVCodecContext *avctx);
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#endif /* AVCODEC_V4L2_REQUEST_H */
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