diff options
Diffstat (limited to 'drivers/media/platform/mediatek/vcodec/decoder/vdec_drv_if.h')
-rw-r--r-- | drivers/media/platform/mediatek/vcodec/decoder/vdec_drv_if.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/drivers/media/platform/mediatek/vcodec/decoder/vdec_drv_if.h b/drivers/media/platform/mediatek/vcodec/decoder/vdec_drv_if.h new file mode 100644 index 0000000000..bfd297c968 --- /dev/null +++ b/drivers/media/platform/mediatek/vcodec/decoder/vdec_drv_if.h @@ -0,0 +1,103 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2016 MediaTek Inc. + * Author: PC Chen <pc.chen@mediatek.com> + * Tiffany Lin <tiffany.lin@mediatek.com> + */ + +#ifndef _VDEC_DRV_IF_H_ +#define _VDEC_DRV_IF_H_ + +#include "mtk_vcodec_dec.h" + + +/** + * enum vdec_fb_status - decoder frame buffer status + * @FB_ST_NORMAL: initial state + * @FB_ST_DISPLAY: frame buffer is ready to be displayed + * @FB_ST_FREE: frame buffer is not used by decoder any more + */ +enum vdec_fb_status { + FB_ST_NORMAL = 0, + FB_ST_DISPLAY = (1 << 0), + FB_ST_FREE = (1 << 1) +}; + +/* For GET_PARAM_DISP_FRAME_BUFFER and GET_PARAM_FREE_FRAME_BUFFER, + * the caller does not own the returned buffer. The buffer will not be + * released before vdec_if_deinit. + * GET_PARAM_DISP_FRAME_BUFFER : get next displayable frame buffer, + * struct vdec_fb** + * GET_PARAM_FREE_FRAME_BUFFER : get non-referenced framebuffer, vdec_fb** + * GET_PARAM_PIC_INFO : get picture info, struct vdec_pic_info* + * GET_PARAM_CROP_INFO : get crop info, struct v4l2_crop* + * GET_PARAM_DPB_SIZE : get dpb size, unsigned int* + */ +enum vdec_get_param_type { + GET_PARAM_DISP_FRAME_BUFFER, + GET_PARAM_FREE_FRAME_BUFFER, + GET_PARAM_PIC_INFO, + GET_PARAM_CROP_INFO, + GET_PARAM_DPB_SIZE +}; + +/** + * struct vdec_fb_node - decoder frame buffer node + * @list : list to hold this node + * @fb : point to frame buffer (vdec_fb), fb could point to frame buffer and + * working buffer this is for maintain buffers in different state + */ +struct vdec_fb_node { + struct list_head list; + struct vdec_fb *fb; +}; + +extern const struct vdec_common_if vdec_h264_if; +extern const struct vdec_common_if vdec_h264_slice_if; +extern const struct vdec_common_if vdec_h264_slice_multi_if; +extern const struct vdec_common_if vdec_vp8_if; +extern const struct vdec_common_if vdec_vp8_slice_if; +extern const struct vdec_common_if vdec_vp9_if; +extern const struct vdec_common_if vdec_vp9_slice_lat_if; +extern const struct vdec_common_if vdec_hevc_slice_multi_if; +extern const struct vdec_common_if vdec_av1_slice_lat_if; + +/** + * vdec_if_init() - initialize decode driver + * @ctx : [in] v4l2 context + * @fourcc : [in] video format fourcc, V4L2_PIX_FMT_H264/VP8/VP9.. + */ +int vdec_if_init(struct mtk_vcodec_dec_ctx *ctx, unsigned int fourcc); + +/** + * vdec_if_deinit() - deinitialize decode driver + * @ctx : [in] v4l2 context + * + */ +void vdec_if_deinit(struct mtk_vcodec_dec_ctx *ctx); + +/** + * vdec_if_decode() - trigger decode + * @ctx : [in] v4l2 context + * @bs : [in] input bitstream + * @fb : [in] frame buffer to store decoded frame, when null means parse + * header only + * @res_chg : [out] resolution change happens if current bs have different + * picture width/height + * Note: To flush the decoder when reaching EOF, set input bitstream as NULL. + * + * Return: 0 on success. -EIO on unrecoverable error. + */ +int vdec_if_decode(struct mtk_vcodec_dec_ctx *ctx, struct mtk_vcodec_mem *bs, + struct vdec_fb *fb, bool *res_chg); + +/** + * vdec_if_get_param() - get driver's parameter + * @ctx : [in] v4l2 context + * @type : [in] input parameter type + * @out : [out] buffer to store query result + */ +int vdec_if_get_param(struct mtk_vcodec_dec_ctx *ctx, enum vdec_get_param_type type, + void *out); + +#endif |