105 lines
3.7 KiB
C
105 lines
3.7 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 <stdbool.h>
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#include <stdint.h>
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#include <linux/videodev2.h>
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#include "libavutil/buffer.h"
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#include "libavutil/log.h"
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#include "libavutil/thread.h"
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#include "avcodec.h"
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typedef struct AVV4L2RequestFramesContextInternal AVV4L2RequestFramesContextInternal;
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typedef struct V4L2RequestOutputBuffer {
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AVBufferRef *ref;
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uint32_t index;
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int request_fd;
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uint8_t *addr;
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uint32_t size;
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uint32_t bytesused;
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struct timeval timestamp;
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} V4L2RequestOutputBuffer;
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typedef struct V4L2RequestContext {
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const AVClass *av_class;
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AVBufferRef *frames_ref;
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AVV4L2RequestFramesContextInternal *fctxi;
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AVMutex mutex;
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V4L2RequestOutputBuffer output[4];
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uint8_t next_output;
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uint32_t queued_output;
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uint32_t queued_request;
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uint64_t queued_capture;
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struct v4l2_ext_control *init_controls;
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int nb_init_controls;
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} V4L2RequestContext;
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typedef struct V4L2RequestPictureContext {
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V4L2RequestOutputBuffer *output;
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uint32_t capture_index;
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} V4L2RequestPictureContext;
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uint64_t ff_v4l2_request_get_capture_timestamp(AVFrame *frame);
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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_controls(AVCodecContext *avctx,
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struct v4l2_ext_control *control, int count);
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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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int ff_v4l2_request_frame_params(AVCodecContext *avctx,
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AVBufferRef *hw_frames_ctx,
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uint32_t pixelformat,
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uint8_t bit_depth);
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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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struct v4l2_ext_control *control, int count,
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int (*post_frames_ctx)(AVCodecContext *avctx));
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#endif /* AVCODEC_V4L2_REQUEST_H */
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