| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Copyright (C) STMicroelectronics SA 2015 |
| * Authors: Yannick Fertre <yannick.fertre@st.com> |
| * Hugues Fruchet <hugues.fruchet@st.com> |
| */ |
| |
| #include "hva.h" |
| #include "hva-hw.h" |
| |
| #define MAX_SPS_PPS_SIZE 128 |
| |
| #define BITSTREAM_OFFSET_MASK 0x7F |
| |
| /* video max size*/ |
| #define H264_MAX_SIZE_W 1920 |
| #define H264_MAX_SIZE_H 1920 |
| |
| /* macroBlocs number (width & height) */ |
| #define MB_W(w) ((w + 0xF) / 0x10) |
| #define MB_H(h) ((h + 0xF) / 0x10) |
| |
| /* formula to get temporal or spatial data size */ |
| #define DATA_SIZE(w, h) (MB_W(w) * MB_H(h) * 16) |
| |
| #define SEARCH_WINDOW_BUFFER_MAX_SIZE(w) ((4 * MB_W(w) + 42) * 256 * 3 / 2) |
| #define CABAC_CONTEXT_BUFFER_MAX_SIZE(w) (MB_W(w) * 16) |
| #define CTX_MB_BUFFER_MAX_SIZE(w) (MB_W(w) * 16 * 8) |
| #define SLICE_HEADER_SIZE (4 * 16) |
| #define BRC_DATA_SIZE (5 * 16) |
| |
| /* source buffer copy in YUV 420 MB-tiled format with size=16*256*3/2 */ |
| #define CURRENT_WINDOW_BUFFER_MAX_SIZE (16 * 256 * 3 / 2) |
| |
| /* |
| * 4 lines of pixels (in Luma, Chroma blue and Chroma red) of top MB |
| * for deblocking with size=4*16*MBx*2 |
| */ |
| #define LOCAL_RECONSTRUCTED_BUFFER_MAX_SIZE(w) (4 * 16 * MB_W(w) * 2) |
| |
| /* factor for bitrate and cpb buffer size max values if profile >= high */ |
| #define H264_FACTOR_HIGH 1200 |
| |
| /* factor for bitrate and cpb buffer size max values if profile < high */ |
| #define H264_FACTOR_BASELINE 1000 |
| |
| /* number of bytes for NALU_TYPE_FILLER_DATA header and footer */ |
| #define H264_FILLER_DATA_SIZE 6 |
| |
| struct h264_profile { |
| enum v4l2_mpeg_video_h264_level level; |
| u32 max_mb_per_seconds; |
| u32 max_frame_size; |
| u32 max_bitrate; |
| u32 max_cpb_size; |
| u32 min_comp_ratio; |
| }; |
| |
| static const struct h264_profile h264_infos_list[] = { |
| {V4L2_MPEG_VIDEO_H264_LEVEL_1_0, 1485, 99, 64, 175, 2}, |
| {V4L2_MPEG_VIDEO_H264_LEVEL_1B, 1485, 99, 128, 350, 2}, |
| {V4L2_MPEG_VIDEO_H264_LEVEL_1_1, 3000, 396, 192, 500, 2}, |
| {V4L2_MPEG_VIDEO_H264_LEVEL_1_2, 6000, 396, 384, 1000, 2}, |
| {V4L2_MPEG_VIDEO_H264_LEVEL_1_3, 11880, 396, 768, 2000, 2}, |
| {V4L2_MPEG_VIDEO_H264_LEVEL_2_0, 11880, 396, 2000, 2000, 2}, |
| {V4L2_MPEG_VIDEO_H264_LEVEL_2_1, 19800, 792, 4000, 4000, 2}, |
| {V4L2_MPEG_VIDEO_H264_LEVEL_2_2, 20250, 1620, 4000, 4000, 2}, |
| {V4L2_MPEG_VIDEO_H264_LEVEL_3_0, 40500, 1620, 10000, 10000, 2}, |
| {V4L2_MPEG_VIDEO_H264_LEVEL_3_1, 108000, 3600, 14000, 14000, 4}, |
| {V4L2_MPEG_VIDEO_H264_LEVEL_3_2, 216000, 5120, 20000, 20000, 4}, |
| {V4L2_MPEG_VIDEO_H264_LEVEL_4_0, 245760, 8192, 20000, 25000, 4}, |
| {V4L2_MPEG_VIDEO_H264_LEVEL_4_1, 245760, 8192, 50000, 62500, 2}, |
| {V4L2_MPEG_VIDEO_H264_LEVEL_4_2, 522240, 8704, 50000, 62500, 2}, |
| {V4L2_MPEG_VIDEO_H264_LEVEL_5_0, 589824, 22080, 135000, 135000, 2}, |
| {V4L2_MPEG_VIDEO_H264_LEVEL_5_1, 983040, 36864, 240000, 240000, 2} |
| }; |
| |
| enum hva_brc_type { |
| BRC_TYPE_NONE = 0, |
| BRC_TYPE_CBR = 1, |
| BRC_TYPE_VBR = 2, |
| BRC_TYPE_VBR_LOW_DELAY = 3 |
| }; |
| |
| enum hva_entropy_coding_mode { |
| CAVLC = 0, |
| CABAC = 1 |
| }; |
| |
| enum hva_picture_coding_type { |
| PICTURE_CODING_TYPE_I = 0, |
| PICTURE_CODING_TYPE_P = 1, |
| PICTURE_CODING_TYPE_B = 2 |
| }; |
| |
| enum hva_h264_sampling_mode { |
| SAMPLING_MODE_NV12 = 0, |
| SAMPLING_MODE_UYVY = 1, |
| SAMPLING_MODE_RGB3 = 3, |
| SAMPLING_MODE_XRGB4 = 4, |
| SAMPLING_MODE_NV21 = 8, |
| SAMPLING_MODE_VYUY = 9, |
| SAMPLING_MODE_BGR3 = 11, |
| SAMPLING_MODE_XBGR4 = 12, |
| SAMPLING_MODE_RGBX4 = 20, |
| SAMPLING_MODE_BGRX4 = 28 |
| }; |
| |
| enum hva_h264_nalu_type { |
| NALU_TYPE_UNKNOWN = 0, |
| NALU_TYPE_SLICE = 1, |
| NALU_TYPE_SLICE_DPA = 2, |
| NALU_TYPE_SLICE_DPB = 3, |
| NALU_TYPE_SLICE_DPC = 4, |
| NALU_TYPE_SLICE_IDR = 5, |
| NALU_TYPE_SEI = 6, |
| NALU_TYPE_SPS = 7, |
| NALU_TYPE_PPS = 8, |
| NALU_TYPE_AU_DELIMITER = 9, |
| NALU_TYPE_SEQ_END = 10, |
| NALU_TYPE_STREAM_END = 11, |
| NALU_TYPE_FILLER_DATA = 12, |
| NALU_TYPE_SPS_EXT = 13, |
| NALU_TYPE_PREFIX_UNIT = 14, |
| NALU_TYPE_SUBSET_SPS = 15, |
| NALU_TYPE_SLICE_AUX = 19, |
| NALU_TYPE_SLICE_EXT = 20 |
| }; |
| |
| enum hva_h264_sei_payload_type { |
| SEI_BUFFERING_PERIOD = 0, |
| SEI_PICTURE_TIMING = 1, |
| SEI_STEREO_VIDEO_INFO = 21, |
| SEI_FRAME_PACKING_ARRANGEMENT = 45 |
| }; |
| |
| /* |
| * stereo Video Info struct |
| */ |
| struct hva_h264_stereo_video_sei { |
| u8 field_views_flag; |
| u8 top_field_is_left_view_flag; |
| u8 current_frame_is_left_view_flag; |
| u8 next_frame_is_second_view_flag; |
| u8 left_view_self_contained_flag; |
| u8 right_view_self_contained_flag; |
| }; |
| |
| /* |
| * struct hva_h264_td |
| * |
| * @frame_width: width in pixels of the buffer containing the input frame |
| * @frame_height: height in pixels of the buffer containing the input frame |
| * @frame_num: the parameter to be written in the slice header |
| * @picture_coding_type: type I, P or B |
| * @pic_order_cnt_type: POC mode, as defined in H264 std : can be 0,1,2 |
| * @first_picture_in_sequence: flag telling to encoder that this is the |
| * first picture in a video sequence. |
| * Used for VBR |
| * @slice_size_type: 0 = no constraint to close the slice |
| * 1= a slice is closed as soon as the slice_mb_size limit |
| * is reached |
| * 2= a slice is closed as soon as the slice_byte_size limit |
| * is reached |
| * 3= a slice is closed as soon as either the slice_byte_size |
| * limit or the slice_mb_size limit is reached |
| * @slice_mb_size: defines the slice size in number of macroblocks |
| * (used when slice_size_type=1 or slice_size_type=3) |
| * @ir_param_option: defines the number of macroblocks per frame to be |
| * refreshed by AIR algorithm OR the refresh period |
| * by CIR algorithm |
| * @intra_refresh_type: enables the adaptive intra refresh algorithm. |
| * Disable=0 / Adaptative=1 and Cycle=2 as intra refresh |
| * @use_constrained_intra_flag: constrained_intra_pred_flag from PPS |
| * @transform_mode: controls the use of 4x4/8x8 transform mode |
| * @disable_deblocking_filter_idc: |
| * 0: specifies that all luma and chroma block edges of |
| * the slice are filtered. |
| * 1: specifies that deblocking is disabled for all block |
| * edges of the slice. |
| * 2: specifies that all luma and chroma block edges of |
| * the slice are filtered with exception of the block edges |
| * that coincide with slice boundaries |
| * @slice_alpha_c0_offset_div2: to be written in slice header, |
| * controls deblocking |
| * @slice_beta_offset_div2: to be written in slice header, |
| * controls deblocking |
| * @encoder_complexity: encoder complexity control (IME). |
| * 0 = I_16x16, P_16x16, Full ME Complexity |
| * 1 = I_16x16, I_NxN, P_16x16, Full ME Complexity |
| * 2 = I_16x16, I_NXN, P_16x16, P_WxH, Full ME Complexity |
| * 4 = I_16x16, P_16x16, Reduced ME Complexity |
| * 5 = I_16x16, I_NxN, P_16x16, Reduced ME Complexity |
| * 6 = I_16x16, I_NXN, P_16x16, P_WxH, Reduced ME Complexity |
| * @chroma_qp_index_offset: coming from picture parameter set |
| * (PPS see [H.264 STD] 7.4.2.2) |
| * @entropy_coding_mode: entropy coding mode. |
| * 0 = CAVLC |
| * 1 = CABAC |
| * @brc_type: selects the bit-rate control algorithm |
| * 0 = constant Qp, (no BRC) |
| * 1 = CBR |
| * 2 = VBR |
| * @quant: Quantization param used in case of fix QP encoding (no BRC) |
| * @non_VCL_NALU_Size: size of non-VCL NALUs (SPS, PPS, filler), |
| * used by BRC |
| * @cpb_buffer_size: size of Coded Picture Buffer, used by BRC |
| * @bit_rate: target bitrate, for BRC |
| * @qp_min: min QP threshold |
| * @qp_max: max QP threshold |
| * @framerate_num: target framerate numerator , used by BRC |
| * @framerate_den: target framerate denomurator , used by BRC |
| * @delay: End-to-End Initial Delay |
| * @strict_HRD_compliancy: flag for HDR compliancy (1) |
| * May impact quality encoding |
| * @addr_source_buffer: address of input frame buffer for current frame |
| * @addr_fwd_Ref_Buffer: address of reference frame buffer |
| * @addr_rec_buffer: address of reconstructed frame buffer |
| * @addr_output_bitstream_start: output bitstream start address |
| * @addr_output_bitstream_end: output bitstream end address |
| * @addr_external_sw : address of external search window |
| * @addr_lctx : address of context picture buffer |
| * @addr_local_rec_buffer: address of local reconstructed buffer |
| * @addr_spatial_context: address of spatial context buffer |
| * @bitstream_offset: offset in bits between aligned bitstream start |
| * address and first bit to be written by HVA. |
| * Range value is [0..63] |
| * @sampling_mode: Input picture format . |
| * 0: YUV420 semi_planar Interleaved |
| * 1: YUV422 raster Interleaved |
| * @addr_param_out: address of output parameters structure |
| * @addr_scaling_matrix: address to the coefficient of |
| * the inverse scaling matrix |
| * @addr_scaling_matrix_dir: address to the coefficient of |
| * the direct scaling matrix |
| * @addr_cabac_context_buffer: address of cabac context buffer |
| * @GmvX: Input information about the horizontal global displacement of |
| * the encoded frame versus the previous one |
| * @GmvY: Input information about the vertical global displacement of |
| * the encoded frame versus the previous one |
| * @window_width: width in pixels of the window to be encoded inside |
| * the input frame |
| * @window_height: width in pixels of the window to be encoded inside |
| * the input frame |
| * @window_horizontal_offset: horizontal offset in pels for input window |
| * within input frame |
| * @window_vertical_offset: vertical offset in pels for input window |
| * within input frame |
| * @addr_roi: Map of QP offset for the Region of Interest algorithm and |
| * also used for Error map. |
| * Bit 0-6 used for qp offset (value -64 to 63). |
| * Bit 7 used to force intra |
| * @addr_slice_header: address to slice header |
| * @slice_header_size_in_bits: size in bits of the Slice header |
| * @slice_header_offset0: Slice header offset where to insert |
| * first_Mb_in_slice |
| * @slice_header_offset1: Slice header offset where to insert |
| * slice_qp_delta |
| * @slice_header_offset2: Slice header offset where to insert |
| * num_MBs_in_slice |
| * @slice_synchro_enable: enable "slice ready" interrupt after each slice |
| * @max_slice_number: Maximum number of slice in a frame |
| * (0 is strictly forbidden) |
| * @rgb2_yuv_y_coeff: Four coefficients (C0C1C2C3) to convert from RGB to |
| * YUV for the Y component. |
| * Y = C0*R + C1*G + C2*B + C3 (C0 is on byte 0) |
| * @rgb2_yuv_u_coeff: four coefficients (C0C1C2C3) to convert from RGB to |
| * YUV for the Y component. |
| * Y = C0*R + C1*G + C2*B + C3 (C0 is on byte 0) |
| * @rgb2_yuv_v_coeff: Four coefficients (C0C1C2C3) to convert from RGB to |
| * YUV for the U (Cb) component. |
| * U = C0*R + C1*G + C2*B + C3 (C0 is on byte 0) |
| * @slice_byte_size: maximum slice size in bytes |
| * (used when slice_size_type=2 or slice_size_type=3) |
| * @max_air_intra_mb_nb: Maximum number of intra macroblock in a frame |
| * for the AIR algorithm |
| * @brc_no_skip: Disable skipping in the Bitrate Controller |
| * @addr_brc_in_out_parameter: address of static buffer for BRC parameters |
| */ |
| struct hva_h264_td { |
| u16 frame_width; |
| u16 frame_height; |
| u32 frame_num; |
| u16 picture_coding_type; |
| u16 reserved1; |
| u16 pic_order_cnt_type; |
| u16 first_picture_in_sequence; |
| u16 slice_size_type; |
| u16 reserved2; |
| u32 slice_mb_size; |
| u16 ir_param_option; |
| u16 intra_refresh_type; |
| u16 use_constrained_intra_flag; |
| u16 transform_mode; |
| u16 disable_deblocking_filter_idc; |
| s16 slice_alpha_c0_offset_div2; |
| s16 slice_beta_offset_div2; |
| u16 encoder_complexity; |
| s16 chroma_qp_index_offset; |
| u16 entropy_coding_mode; |
| u16 brc_type; |
| u16 quant; |
| u32 non_vcl_nalu_size; |
| u32 cpb_buffer_size; |
| u32 bit_rate; |
| u16 qp_min; |
| u16 qp_max; |
| u16 framerate_num; |
| u16 framerate_den; |
| u16 delay; |
| u16 strict_hrd_compliancy; |
| u32 addr_source_buffer; |
| u32 addr_fwd_ref_buffer; |
| u32 addr_rec_buffer; |
| u32 addr_output_bitstream_start; |
| u32 addr_output_bitstream_end; |
| u32 addr_external_sw; |
| u32 addr_lctx; |
| u32 addr_local_rec_buffer; |
| u32 addr_spatial_context; |
| u16 bitstream_offset; |
| u16 sampling_mode; |
| u32 addr_param_out; |
| u32 addr_scaling_matrix; |
| u32 addr_scaling_matrix_dir; |
| u32 addr_cabac_context_buffer; |
| u32 reserved3; |
| u32 reserved4; |
| s16 gmv_x; |
| s16 gmv_y; |
| u16 window_width; |
| u16 window_height; |
| u16 window_horizontal_offset; |
| u16 window_vertical_offset; |
| u32 addr_roi; |
| u32 addr_slice_header; |
| u16 slice_header_size_in_bits; |
| u16 slice_header_offset0; |
| u16 slice_header_offset1; |
| u16 slice_header_offset2; |
| u32 reserved5; |
| u32 reserved6; |
| u16 reserved7; |
| u16 reserved8; |
| u16 slice_synchro_enable; |
| u16 max_slice_number; |
| u32 rgb2_yuv_y_coeff; |
| u32 rgb2_yuv_u_coeff; |
| u32 rgb2_yuv_v_coeff; |
| u32 slice_byte_size; |
| u16 max_air_intra_mb_nb; |
| u16 brc_no_skip; |
| u32 addr_temporal_context; |
| u32 addr_brc_in_out_parameter; |
| }; |
| |
| /* |
| * struct hva_h264_slice_po |
| * |
| * @ slice_size: slice size |
| * @ slice_start_time: start time |
| * @ slice_stop_time: stop time |
| * @ slice_num: slice number |
| */ |
| struct hva_h264_slice_po { |
| u32 slice_size; |
| u32 slice_start_time; |
| u32 slice_end_time; |
| u32 slice_num; |
| }; |
| |
| /* |
| * struct hva_h264_po |
| * |
| * @ bitstream_size: bitstream size |
| * @ dct_bitstream_size: dtc bitstream size |
| * @ stuffing_bits: number of stuffing bits inserted by the encoder |
| * @ removal_time: removal time of current frame (nb of ticks 1/framerate) |
| * @ hvc_start_time: hvc start time |
| * @ hvc_stop_time: hvc stop time |
| * @ slice_count: slice count |
| */ |
| struct hva_h264_po { |
| u32 bitstream_size; |
| u32 dct_bitstream_size; |
| u32 stuffing_bits; |
| u32 removal_time; |
| u32 hvc_start_time; |
| u32 hvc_stop_time; |
| u32 slice_count; |
| u32 reserved0; |
| struct hva_h264_slice_po slice_params[16]; |
| }; |
| |
| struct hva_h264_task { |
| struct hva_h264_td td; |
| struct hva_h264_po po; |
| }; |
| |
| /* |
| * struct hva_h264_ctx |
| * |
| * @seq_info: sequence information buffer |
| * @ref_frame: reference frame buffer |
| * @rec_frame: reconstructed frame buffer |
| * @task: task descriptor |
| */ |
| struct hva_h264_ctx { |
| struct hva_buffer *seq_info; |
| struct hva_buffer *ref_frame; |
| struct hva_buffer *rec_frame; |
| struct hva_buffer *task; |
| }; |
| |
| static int hva_h264_fill_slice_header(struct hva_ctx *pctx, |
| u8 *slice_header_addr, |
| struct hva_controls *ctrls, |
| int frame_num, |
| u16 *header_size, |
| u16 *header_offset0, |
| u16 *header_offset1, |
| u16 *header_offset2) |
| { |
| /* |
| * with this HVA hardware version, part of the slice header is computed |
| * on host and part by hardware. |
| * The part of host is precomputed and available through this array. |
| */ |
| struct device *dev = ctx_to_dev(pctx); |
| int cabac = V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CABAC; |
| static const unsigned char slice_header[] = { |
| 0x00, 0x00, 0x00, 0x01, |
| 0x41, 0x34, 0x07, 0x00 |
| }; |
| int idr_pic_id = frame_num % 2; |
| enum hva_picture_coding_type type; |
| u32 frame_order = frame_num % ctrls->gop_size; |
| |
| if (!(frame_num % ctrls->gop_size)) |
| type = PICTURE_CODING_TYPE_I; |
| else |
| type = PICTURE_CODING_TYPE_P; |
| |
| memcpy(slice_header_addr, slice_header, sizeof(slice_header)); |
| |
| *header_size = 56; |
| *header_offset0 = 40; |
| *header_offset1 = 13; |
| *header_offset2 = 0; |
| |
| if (type == PICTURE_CODING_TYPE_I) { |
| slice_header_addr[4] = 0x65; |
| slice_header_addr[5] = 0x11; |
| |
| /* toggle the I frame */ |
| if ((frame_num / ctrls->gop_size) % 2) { |
| *header_size += 4; |
| *header_offset1 += 4; |
| slice_header_addr[6] = 0x04; |
| slice_header_addr[7] = 0x70; |
| |
| } else { |
| *header_size += 2; |
| *header_offset1 += 2; |
| slice_header_addr[6] = 0x09; |
| slice_header_addr[7] = 0xC0; |
| } |
| } else { |
| if (ctrls->entropy_mode == cabac) { |
| *header_size += 1; |
| *header_offset1 += 1; |
| slice_header_addr[7] = 0x80; |
| } |
| /* |
| * update slice header with P frame order |
| * frame order is limited to 16 (coded on 4bits only) |
| */ |
| slice_header_addr[5] += ((frame_order & 0x0C) >> 2); |
| slice_header_addr[6] += ((frame_order & 0x03) << 6); |
| } |
| |
| dev_dbg(dev, |
| "%s %s slice header order %d idrPicId %d header size %d\n", |
| pctx->name, __func__, frame_order, idr_pic_id, *header_size); |
| return 0; |
| } |
| |
| static int hva_h264_fill_data_nal(struct hva_ctx *pctx, |
| unsigned int stuffing_bytes, u8 *addr, |
| unsigned int stream_size, unsigned int *size) |
| { |
| struct device *dev = ctx_to_dev(pctx); |
| static const u8 start[] = { 0x00, 0x00, 0x00, 0x01 }; |
| |
| dev_dbg(dev, "%s %s stuffing bytes %d\n", pctx->name, __func__, |
| stuffing_bytes); |
| |
| if ((*size + stuffing_bytes + H264_FILLER_DATA_SIZE) > stream_size) { |
| dev_dbg(dev, "%s %s too many stuffing bytes %d\n", |
| pctx->name, __func__, stuffing_bytes); |
| return 0; |
| } |
| |
| /* start code */ |
| memcpy(addr + *size, start, sizeof(start)); |
| *size += sizeof(start); |
| |
| /* nal_unit_type */ |
| addr[*size] = NALU_TYPE_FILLER_DATA; |
| *size += 1; |
| |
| memset(addr + *size, 0xff, stuffing_bytes); |
| *size += stuffing_bytes; |
| |
| addr[*size] = 0x80; |
| *size += 1; |
| |
| return 0; |
| } |
| |
| static int hva_h264_fill_sei_nal(struct hva_ctx *pctx, |
| enum hva_h264_sei_payload_type type, |
| u8 *addr, u32 *size) |
| { |
| struct device *dev = ctx_to_dev(pctx); |
| static const u8 start[] = { 0x00, 0x00, 0x00, 0x01 }; |
| struct hva_h264_stereo_video_sei info; |
| u8 offset = 7; |
| u8 msg = 0; |
| |
| /* start code */ |
| memcpy(addr + *size, start, sizeof(start)); |
| *size += sizeof(start); |
| |
| /* nal_unit_type */ |
| addr[*size] = NALU_TYPE_SEI; |
| *size += 1; |
| |
| /* payload type */ |
| addr[*size] = type; |
| *size += 1; |
| |
| switch (type) { |
| case SEI_STEREO_VIDEO_INFO: |
| memset(&info, 0, sizeof(info)); |
| |
| /* set to top/bottom frame packing arrangement */ |
| info.field_views_flag = 1; |
| info.top_field_is_left_view_flag = 1; |
| |
| /* payload size */ |
| addr[*size] = 1; |
| *size += 1; |
| |
| /* payload */ |
| msg = info.field_views_flag << offset--; |
| |
| if (info.field_views_flag) { |
| msg |= info.top_field_is_left_view_flag << |
| offset--; |
| } else { |
| msg |= info.current_frame_is_left_view_flag << |
| offset--; |
| msg |= info.next_frame_is_second_view_flag << |
| offset--; |
| } |
| msg |= info.left_view_self_contained_flag << offset--; |
| msg |= info.right_view_self_contained_flag << offset--; |
| |
| addr[*size] = msg; |
| *size += 1; |
| |
| addr[*size] = 0x80; |
| *size += 1; |
| |
| return 0; |
| case SEI_BUFFERING_PERIOD: |
| case SEI_PICTURE_TIMING: |
| case SEI_FRAME_PACKING_ARRANGEMENT: |
| default: |
| dev_err(dev, "%s sei nal type not supported %d\n", |
| pctx->name, type); |
| return -EINVAL; |
| } |
| } |
| |
| static int hva_h264_prepare_task(struct hva_ctx *pctx, |
| struct hva_h264_task *task, |
| struct hva_frame *frame, |
| struct hva_stream *stream) |
| { |
| struct hva_dev *hva = ctx_to_hdev(pctx); |
| struct device *dev = ctx_to_dev(pctx); |
| struct hva_h264_ctx *ctx = (struct hva_h264_ctx *)pctx->priv; |
| struct hva_buffer *seq_info = ctx->seq_info; |
| struct hva_buffer *fwd_ref_frame = ctx->ref_frame; |
| struct hva_buffer *loc_rec_frame = ctx->rec_frame; |
| struct hva_h264_td *td = &task->td; |
| struct hva_controls *ctrls = &pctx->ctrls; |
| struct v4l2_fract *time_per_frame = &pctx->ctrls.time_per_frame; |
| int cavlc = V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CAVLC; |
| u32 frame_num = pctx->stream_num; |
| u32 addr_esram = hva->esram_addr; |
| enum v4l2_mpeg_video_h264_level level; |
| dma_addr_t paddr = 0; |
| u8 *slice_header_vaddr; |
| u32 frame_width = frame->info.aligned_width; |
| u32 frame_height = frame->info.aligned_height; |
| u32 max_cpb_buffer_size; |
| unsigned int payload = stream->bytesused; |
| u32 max_bitrate; |
| |
| /* check width and height parameters */ |
| if ((frame_width > max(H264_MAX_SIZE_W, H264_MAX_SIZE_H)) || |
| (frame_height > max(H264_MAX_SIZE_W, H264_MAX_SIZE_H))) { |
| dev_err(dev, |
| "%s width(%d) or height(%d) exceeds limits (%dx%d)\n", |
| pctx->name, frame_width, frame_height, |
| H264_MAX_SIZE_W, H264_MAX_SIZE_H); |
| pctx->frame_errors++; |
| return -EINVAL; |
| } |
| |
| level = ctrls->level; |
| |
| memset(td, 0, sizeof(struct hva_h264_td)); |
| |
| td->frame_width = frame_width; |
| td->frame_height = frame_height; |
| |
| /* set frame alignment */ |
| td->window_width = frame_width; |
| td->window_height = frame_height; |
| td->window_horizontal_offset = 0; |
| td->window_vertical_offset = 0; |
| |
| td->first_picture_in_sequence = (!frame_num) ? 1 : 0; |
| |
| /* pic_order_cnt_type hard coded to '2' as only I & P frames */ |
| td->pic_order_cnt_type = 2; |
| |
| /* useConstrainedIntraFlag set to false for better coding efficiency */ |
| td->use_constrained_intra_flag = false; |
| td->brc_type = (ctrls->bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR) |
| ? BRC_TYPE_CBR : BRC_TYPE_VBR; |
| |
| td->entropy_coding_mode = (ctrls->entropy_mode == cavlc) ? CAVLC : |
| CABAC; |
| |
| td->bit_rate = ctrls->bitrate; |
| |
| /* set framerate, framerate = 1 n/ time per frame */ |
| if (time_per_frame->numerator >= 536) { |
| /* |
| * due to a hardware bug, framerate denominator can't exceed |
| * 536 (BRC overflow). Compute nearest framerate |
| */ |
| td->framerate_den = 1; |
| td->framerate_num = (time_per_frame->denominator + |
| (time_per_frame->numerator >> 1) - 1) / |
| time_per_frame->numerator; |
| |
| /* |
| * update bitrate to introduce a correction due to |
| * the new framerate |
| * new bitrate = (old bitrate * new framerate) / old framerate |
| */ |
| td->bit_rate /= time_per_frame->numerator; |
| td->bit_rate *= time_per_frame->denominator; |
| td->bit_rate /= td->framerate_num; |
| } else { |
| td->framerate_den = time_per_frame->numerator; |
| td->framerate_num = time_per_frame->denominator; |
| } |
| |
| /* compute maximum bitrate depending on profile */ |
| if (ctrls->profile >= V4L2_MPEG_VIDEO_H264_PROFILE_HIGH) |
| max_bitrate = h264_infos_list[level].max_bitrate * |
| H264_FACTOR_HIGH; |
| else |
| max_bitrate = h264_infos_list[level].max_bitrate * |
| H264_FACTOR_BASELINE; |
| |
| /* check if bitrate doesn't exceed max size */ |
| if (td->bit_rate > max_bitrate) { |
| dev_dbg(dev, |
| "%s bitrate (%d) larger than level and profile allow, clip to %d\n", |
| pctx->name, td->bit_rate, max_bitrate); |
| td->bit_rate = max_bitrate; |
| } |
| |
| /* convert cpb_buffer_size in bits */ |
| td->cpb_buffer_size = ctrls->cpb_size * 8000; |
| |
| /* compute maximum cpb buffer size depending on profile */ |
| if (ctrls->profile >= V4L2_MPEG_VIDEO_H264_PROFILE_HIGH) |
| max_cpb_buffer_size = |
| h264_infos_list[level].max_cpb_size * H264_FACTOR_HIGH; |
| else |
| max_cpb_buffer_size = |
| h264_infos_list[level].max_cpb_size * H264_FACTOR_BASELINE; |
| |
| /* check if cpb buffer size doesn't exceed max size */ |
| if (td->cpb_buffer_size > max_cpb_buffer_size) { |
| dev_dbg(dev, |
| "%s cpb size larger than level %d allows, clip to %d\n", |
| pctx->name, td->cpb_buffer_size, max_cpb_buffer_size); |
| td->cpb_buffer_size = max_cpb_buffer_size; |
| } |
| |
| /* enable skipping in the Bitrate Controller */ |
| td->brc_no_skip = 0; |
| |
| /* initial delay */ |
| if ((ctrls->bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR) && |
| td->bit_rate) |
| td->delay = 1000 * (td->cpb_buffer_size / td->bit_rate); |
| else |
| td->delay = 0; |
| |
| switch (frame->info.pixelformat) { |
| case V4L2_PIX_FMT_NV12: |
| td->sampling_mode = SAMPLING_MODE_NV12; |
| break; |
| case V4L2_PIX_FMT_NV21: |
| td->sampling_mode = SAMPLING_MODE_NV21; |
| break; |
| default: |
| dev_err(dev, "%s invalid source pixel format\n", |
| pctx->name); |
| pctx->frame_errors++; |
| return -EINVAL; |
| } |
| |
| /* |
| * fill matrix color converter (RGB to YUV) |
| * Y = 0,299 R + 0,587 G + 0,114 B |
| * Cb = -0,1687 R -0,3313 G + 0,5 B + 128 |
| * Cr = 0,5 R - 0,4187 G - 0,0813 B + 128 |
| */ |
| td->rgb2_yuv_y_coeff = 0x12031008; |
| td->rgb2_yuv_u_coeff = 0x800EF7FB; |
| td->rgb2_yuv_v_coeff = 0x80FEF40E; |
| |
| /* enable/disable transform mode */ |
| td->transform_mode = ctrls->dct8x8; |
| |
| /* encoder complexity fix to 2, ENCODE_I_16x16_I_NxN_P_16x16_P_WxH */ |
| td->encoder_complexity = 2; |
| |
| /* quant fix to 28, default VBR value */ |
| td->quant = 28; |
| |
| if (td->framerate_den == 0) { |
| dev_err(dev, "%s invalid framerate\n", pctx->name); |
| pctx->frame_errors++; |
| return -EINVAL; |
| } |
| |
| /* if automatic framerate, deactivate bitrate controller */ |
| if (td->framerate_num == 0) |
| td->brc_type = 0; |
| |
| /* compliancy fix to true */ |
| td->strict_hrd_compliancy = 1; |
| |
| /* set minimum & maximum quantizers */ |
| td->qp_min = clamp_val(ctrls->qpmin, 0, 51); |
| td->qp_max = clamp_val(ctrls->qpmax, 0, 51); |
| |
| td->addr_source_buffer = frame->paddr; |
| td->addr_fwd_ref_buffer = fwd_ref_frame->paddr; |
| td->addr_rec_buffer = loc_rec_frame->paddr; |
| |
| td->addr_output_bitstream_end = (u32)stream->paddr + stream->size; |
| |
| td->addr_output_bitstream_start = (u32)stream->paddr; |
| td->bitstream_offset = (((u32)stream->paddr & 0xF) << 3) & |
| BITSTREAM_OFFSET_MASK; |
| |
| td->addr_param_out = (u32)ctx->task->paddr + |
| offsetof(struct hva_h264_task, po); |
| |
| /* swap spatial and temporal context */ |
| if (frame_num % 2) { |
| paddr = seq_info->paddr; |
| td->addr_spatial_context = ALIGN(paddr, 0x100); |
| paddr = seq_info->paddr + DATA_SIZE(frame_width, |
| frame_height); |
| td->addr_temporal_context = ALIGN(paddr, 0x100); |
| } else { |
| paddr = seq_info->paddr; |
| td->addr_temporal_context = ALIGN(paddr, 0x100); |
| paddr = seq_info->paddr + DATA_SIZE(frame_width, |
| frame_height); |
| td->addr_spatial_context = ALIGN(paddr, 0x100); |
| } |
| |
| paddr = seq_info->paddr + 2 * DATA_SIZE(frame_width, frame_height); |
| |
| td->addr_brc_in_out_parameter = ALIGN(paddr, 0x100); |
| |
| paddr = td->addr_brc_in_out_parameter + BRC_DATA_SIZE; |
| td->addr_slice_header = ALIGN(paddr, 0x100); |
| td->addr_external_sw = ALIGN(addr_esram, 0x100); |
| |
| addr_esram += SEARCH_WINDOW_BUFFER_MAX_SIZE(frame_width); |
| td->addr_local_rec_buffer = ALIGN(addr_esram, 0x100); |
| |
| addr_esram += LOCAL_RECONSTRUCTED_BUFFER_MAX_SIZE(frame_width); |
| td->addr_lctx = ALIGN(addr_esram, 0x100); |
| |
| addr_esram += CTX_MB_BUFFER_MAX_SIZE(max(frame_width, frame_height)); |
| td->addr_cabac_context_buffer = ALIGN(addr_esram, 0x100); |
| |
| if (!(frame_num % ctrls->gop_size)) { |
| td->picture_coding_type = PICTURE_CODING_TYPE_I; |
| stream->vbuf.flags |= V4L2_BUF_FLAG_KEYFRAME; |
| } else { |
| td->picture_coding_type = PICTURE_CODING_TYPE_P; |
| stream->vbuf.flags &= ~V4L2_BUF_FLAG_KEYFRAME; |
| } |
| |
| /* fill the slice header part */ |
| slice_header_vaddr = seq_info->vaddr + (td->addr_slice_header - |
| seq_info->paddr); |
| |
| hva_h264_fill_slice_header(pctx, slice_header_vaddr, ctrls, frame_num, |
| &td->slice_header_size_in_bits, |
| &td->slice_header_offset0, |
| &td->slice_header_offset1, |
| &td->slice_header_offset2); |
| |
| td->chroma_qp_index_offset = 2; |
| td->slice_synchro_enable = 0; |
| td->max_slice_number = 1; |
| |
| /* |
| * check the sps/pps header size for key frame only |
| * sps/pps header was previously fill by libv4l |
| * during qbuf of stream buffer |
| */ |
| if ((stream->vbuf.flags == V4L2_BUF_FLAG_KEYFRAME) && |
| (payload > MAX_SPS_PPS_SIZE)) { |
| dev_err(dev, "%s invalid sps/pps size %d\n", pctx->name, |
| payload); |
| pctx->frame_errors++; |
| return -EINVAL; |
| } |
| |
| if (stream->vbuf.flags != V4L2_BUF_FLAG_KEYFRAME) |
| payload = 0; |
| |
| /* add SEI nal (video stereo info) */ |
| if (ctrls->sei_fp && hva_h264_fill_sei_nal(pctx, SEI_STEREO_VIDEO_INFO, |
| (u8 *)stream->vaddr, |
| &payload)) { |
| dev_err(dev, "%s fail to get SEI nal\n", pctx->name); |
| pctx->frame_errors++; |
| return -EINVAL; |
| } |
| |
| /* fill size of non-VCL NAL units (SPS, PPS, filler and SEI) */ |
| td->non_vcl_nalu_size = payload * 8; |
| |
| /* compute bitstream offset & new start address of bitstream */ |
| td->addr_output_bitstream_start += ((payload >> 4) << 4); |
| td->bitstream_offset += (payload - ((payload >> 4) << 4)) * 8; |
| |
| stream->bytesused = payload; |
| |
| return 0; |
| } |
| |
| static unsigned int hva_h264_get_stream_size(struct hva_h264_task *task) |
| { |
| struct hva_h264_po *po = &task->po; |
| |
| return po->bitstream_size; |
| } |
| |
| static u32 hva_h264_get_stuffing_bytes(struct hva_h264_task *task) |
| { |
| struct hva_h264_po *po = &task->po; |
| |
| return po->stuffing_bits >> 3; |
| } |
| |
| static int hva_h264_open(struct hva_ctx *pctx) |
| { |
| struct device *dev = ctx_to_dev(pctx); |
| struct hva_h264_ctx *ctx; |
| struct hva_dev *hva = ctx_to_hdev(pctx); |
| u32 frame_width = pctx->frameinfo.aligned_width; |
| u32 frame_height = pctx->frameinfo.aligned_height; |
| u32 size; |
| int ret; |
| |
| /* check esram size necessary to encode a frame */ |
| size = SEARCH_WINDOW_BUFFER_MAX_SIZE(frame_width) + |
| LOCAL_RECONSTRUCTED_BUFFER_MAX_SIZE(frame_width) + |
| CTX_MB_BUFFER_MAX_SIZE(max(frame_width, frame_height)) + |
| CABAC_CONTEXT_BUFFER_MAX_SIZE(frame_width); |
| |
| if (hva->esram_size < size) { |
| dev_err(dev, "%s not enough esram (max:%d request:%d)\n", |
| pctx->name, hva->esram_size, size); |
| ret = -EINVAL; |
| goto err; |
| } |
| |
| /* allocate context for codec */ |
| ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); |
| if (!ctx) { |
| ret = -ENOMEM; |
| goto err; |
| } |
| |
| /* allocate sequence info buffer */ |
| ret = hva_mem_alloc(pctx, |
| 2 * DATA_SIZE(frame_width, frame_height) + |
| SLICE_HEADER_SIZE + |
| BRC_DATA_SIZE, |
| "hva sequence info", |
| &ctx->seq_info); |
| if (ret) { |
| dev_err(dev, |
| "%s failed to allocate sequence info buffer\n", |
| pctx->name); |
| goto err_ctx; |
| } |
| |
| /* allocate reference frame buffer */ |
| ret = hva_mem_alloc(pctx, |
| frame_width * frame_height * 3 / 2, |
| "hva reference frame", |
| &ctx->ref_frame); |
| if (ret) { |
| dev_err(dev, "%s failed to allocate reference frame buffer\n", |
| pctx->name); |
| goto err_seq_info; |
| } |
| |
| /* allocate reconstructed frame buffer */ |
| ret = hva_mem_alloc(pctx, |
| frame_width * frame_height * 3 / 2, |
| "hva reconstructed frame", |
| &ctx->rec_frame); |
| if (ret) { |
| dev_err(dev, |
| "%s failed to allocate reconstructed frame buffer\n", |
| pctx->name); |
| goto err_ref_frame; |
| } |
| |
| /* allocate task descriptor */ |
| ret = hva_mem_alloc(pctx, |
| sizeof(struct hva_h264_task), |
| "hva task descriptor", |
| &ctx->task); |
| if (ret) { |
| dev_err(dev, |
| "%s failed to allocate task descriptor\n", |
| pctx->name); |
| goto err_rec_frame; |
| } |
| |
| pctx->priv = (void *)ctx; |
| |
| return 0; |
| |
| err_rec_frame: |
| hva_mem_free(pctx, ctx->rec_frame); |
| err_ref_frame: |
| hva_mem_free(pctx, ctx->ref_frame); |
| err_seq_info: |
| hva_mem_free(pctx, ctx->seq_info); |
| err_ctx: |
| devm_kfree(dev, ctx); |
| err: |
| pctx->sys_errors++; |
| return ret; |
| } |
| |
| static int hva_h264_close(struct hva_ctx *pctx) |
| { |
| struct hva_h264_ctx *ctx = (struct hva_h264_ctx *)pctx->priv; |
| struct device *dev = ctx_to_dev(pctx); |
| |
| if (ctx->seq_info) |
| hva_mem_free(pctx, ctx->seq_info); |
| |
| if (ctx->ref_frame) |
| hva_mem_free(pctx, ctx->ref_frame); |
| |
| if (ctx->rec_frame) |
| hva_mem_free(pctx, ctx->rec_frame); |
| |
| if (ctx->task) |
| hva_mem_free(pctx, ctx->task); |
| |
| devm_kfree(dev, ctx); |
| |
| return 0; |
| } |
| |
| static int hva_h264_encode(struct hva_ctx *pctx, struct hva_frame *frame, |
| struct hva_stream *stream) |
| { |
| struct hva_h264_ctx *ctx = (struct hva_h264_ctx *)pctx->priv; |
| struct hva_h264_task *task = (struct hva_h264_task *)ctx->task->vaddr; |
| u32 stuffing_bytes = 0; |
| int ret = 0; |
| |
| ret = hva_h264_prepare_task(pctx, task, frame, stream); |
| if (ret) |
| goto err; |
| |
| ret = hva_hw_execute_task(pctx, H264_ENC, ctx->task); |
| if (ret) |
| goto err; |
| |
| pctx->stream_num++; |
| stream->bytesused += hva_h264_get_stream_size(task); |
| |
| stuffing_bytes = hva_h264_get_stuffing_bytes(task); |
| |
| if (stuffing_bytes) |
| hva_h264_fill_data_nal(pctx, stuffing_bytes, |
| (u8 *)stream->vaddr, |
| stream->size, |
| &stream->bytesused); |
| |
| /* switch reference & reconstructed frame */ |
| swap(ctx->ref_frame, ctx->rec_frame); |
| |
| return 0; |
| err: |
| stream->bytesused = 0; |
| return ret; |
| } |
| |
| const struct hva_enc nv12h264enc = { |
| .name = "H264(NV12)", |
| .pixelformat = V4L2_PIX_FMT_NV12, |
| .streamformat = V4L2_PIX_FMT_H264, |
| .max_width = H264_MAX_SIZE_W, |
| .max_height = H264_MAX_SIZE_H, |
| .open = hva_h264_open, |
| .close = hva_h264_close, |
| .encode = hva_h264_encode, |
| }; |
| |
| const struct hva_enc nv21h264enc = { |
| .name = "H264(NV21)", |
| .pixelformat = V4L2_PIX_FMT_NV21, |
| .streamformat = V4L2_PIX_FMT_H264, |
| .max_width = H264_MAX_SIZE_W, |
| .max_height = H264_MAX_SIZE_H, |
| .open = hva_h264_open, |
| .close = hva_h264_close, |
| .encode = hva_h264_encode, |
| }; |
