From d869207ed9fc54268d84b0c07c22ec14910c9333 Mon Sep 17 00:00:00 2001 From: Mikhail Burakov Date: Mon, 29 May 2023 12:14:39 +0200 Subject: Entirely replace older encode implementation with a new one --- encode2.c | 833 -------------------------------------------------------------- 1 file changed, 833 deletions(-) delete mode 100644 encode2.c (limited to 'encode2.c') diff --git a/encode2.c b/encode2.c deleted file mode 100644 index 309e7c4..0000000 --- a/encode2.c +++ /dev/null @@ -1,833 +0,0 @@ -/* - * Copyright (C) 2023 Mikhail Burakov. This file is part of streamer. - * - * streamer is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * streamer is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with streamer. If not, see . - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "bitstream.h" -#include "encode.h" -#include "gpu.h" -#include "hevc.h" -#include "toolbox/utils.h" - -struct EncodeContext { - struct GpuContext* gpu_context; - uint32_t width; - uint32_t height; - enum YuvColorspace colorspace; - enum YuvRange range; - - int render_node; - VADisplay va_display; - VAConfigID va_config_id; - - struct { - bool packed_header_sequence; - bool packed_header_slice; - } codec_quirks; - - VAContextID va_context_id; - VASurfaceID input_surface_id; - struct GpuFrame* gpu_frame; - - VASurfaceID recon_surface_ids[2]; - VABufferID output_buffer_id; - - VAEncSequenceParameterBufferHEVC seq; - VAEncPictureParameterBufferHEVC pic; - VAEncSliceParameterBufferHEVC slice; - size_t frame_counter; -}; - -static const char* VaErrorString(VAStatus error) { - static const char* va_error_strings[] = { - "VA_STATUS_SUCCESS", - "VA_STATUS_ERROR_OPERATION_FAILED", - "VA_STATUS_ERROR_ALLOCATION_FAILED", - "VA_STATUS_ERROR_INVALID_DISPLAY", - "VA_STATUS_ERROR_INVALID_CONFIG", - "VA_STATUS_ERROR_INVALID_CONTEXT", - "VA_STATUS_ERROR_INVALID_SURFACE", - "VA_STATUS_ERROR_INVALID_BUFFER", - "VA_STATUS_ERROR_INVALID_IMAGE", - "VA_STATUS_ERROR_INVALID_SUBPICTURE", - "VA_STATUS_ERROR_ATTR_NOT_SUPPORTED", - "VA_STATUS_ERROR_MAX_NUM_EXCEEDED", - "VA_STATUS_ERROR_UNSUPPORTED_PROFILE", - "VA_STATUS_ERROR_UNSUPPORTED_ENTRYPOINT", - "VA_STATUS_ERROR_UNSUPPORTED_RT_FORMAT", - "VA_STATUS_ERROR_UNSUPPORTED_BUFFERTYPE", - "VA_STATUS_ERROR_SURFACE_BUSY", - "VA_STATUS_ERROR_FLAG_NOT_SUPPORTED", - "VA_STATUS_ERROR_INVALID_PARAMETER", - "VA_STATUS_ERROR_RESOLUTION_NOT_SUPPORTED", - "VA_STATUS_ERROR_UNIMPLEMENTED", - "VA_STATUS_ERROR_SURFACE_IN_DISPLAYING", - "VA_STATUS_ERROR_INVALID_IMAGE_FORMAT", - "VA_STATUS_ERROR_DECODING_ERROR", - "VA_STATUS_ERROR_ENCODING_ERROR", - "VA_STATUS_ERROR_INVALID_VALUE", - "???", - "???", - "???", - "???", - "???", - "???", - "VA_STATUS_ERROR_UNSUPPORTED_FILTER", - "VA_STATUS_ERROR_INVALID_FILTER_CHAIN", - "VA_STATUS_ERROR_HW_BUSY", - "???", - "VA_STATUS_ERROR_UNSUPPORTED_MEMORY_TYPE", - "VA_STATUS_ERROR_NOT_ENOUGH_BUFFER", - "VA_STATUS_ERROR_TIMEDOUT", - }; - return VA_STATUS_SUCCESS <= error && error <= VA_STATUS_ERROR_TIMEDOUT - ? va_error_strings[error - VA_STATUS_SUCCESS] - : "???"; -} - -static void OnVaLogMessage(void* context, const char* message) { - (void)context; - size_t len = strlen(message); - while (message[len - 1] == '\n') len--; - LOG("%.*s", (int)len, message); -} - -static bool InitializeCodecQuirks(struct EncodeContext* encode_context) { - bool result = false; - VAProfile dummy_profile; - VAEntrypoint dummy_entrypoint; - int num_attribs = vaMaxNumConfigAttributes(encode_context->va_display); - VAConfigAttrib* attrib_list = - malloc((size_t)num_attribs * sizeof(VAConfigAttrib)); - VAStatus status = vaQueryConfigAttributes( - encode_context->va_display, encode_context->va_config_id, &dummy_profile, - &dummy_entrypoint, attrib_list, &num_attribs); - if (status != VA_STATUS_SUCCESS) { - LOG("Failed to query va config attributes (%s)", VaErrorString(status)); - goto rollback_attrib_list; - } - - for (int i = 0; i < num_attribs; i++) { - if (attrib_list[i].type == VAConfigAttribEncPackedHeaders) { - encode_context->codec_quirks.packed_header_sequence = - !!(attrib_list[i].value & VA_ENC_PACKED_HEADER_SEQUENCE); - encode_context->codec_quirks.packed_header_slice = - !!(attrib_list[i].value & VA_ENC_PACKED_HEADER_SLICE); - } - } - result = true; - -rollback_attrib_list: - free(attrib_list); - return result; -} - -static struct GpuFrame* VaSurfaceToGpuFrame(VADisplay va_display, - VASurfaceID va_surface_id, - struct GpuContext* gpu_context) { - VADRMPRIMESurfaceDescriptor prime; - VAStatus status = vaExportSurfaceHandle( - va_display, va_surface_id, VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME_2, - VA_EXPORT_SURFACE_WRITE_ONLY | VA_EXPORT_SURFACE_COMPOSED_LAYERS, &prime); - if (status != VA_STATUS_SUCCESS) { - LOG("Failed to export va surface (%s)", VaErrorString(status)); - return NULL; - } - - struct GpuFramePlane planes[] = {{.dmabuf_fd = -1}, - {.dmabuf_fd = -1}, - {.dmabuf_fd = -1}, - {.dmabuf_fd = -1}}; - static_assert(LENGTH(planes) == LENGTH(prime.layers[0].object_index), - "Suspicious VADRMPRIMESurfaceDescriptor structure"); - - for (size_t i = 0; i < prime.layers[0].num_planes; i++) { - uint32_t object_index = prime.layers[0].object_index[i]; - planes[i] = (struct GpuFramePlane){ - .dmabuf_fd = prime.objects[object_index].fd, - .pitch = prime.layers[0].pitch[i], - .offset = prime.layers[0].offset[i], - .modifier = prime.objects[object_index].drm_format_modifier, - }; - } - - struct GpuFrame* gpu_frame = - GpuContextCreateFrame(gpu_context, prime.width, prime.height, - prime.fourcc, prime.layers[0].num_planes, planes); - if (!gpu_frame) { - LOG("Failed to create gpu frame"); - goto release_planes; - } - return gpu_frame; - -release_planes: - CloseUniqueFds((int[]){planes[0].dmabuf_fd, planes[1].dmabuf_fd, - planes[2].dmabuf_fd, planes[3].dmabuf_fd}); - return NULL; -} - -static void InitializeSeqHeader(struct EncodeContext* encode_context, - uint16_t pic_width_in_luma_samples, - uint16_t pic_height_in_luma_samples) { - encode_context->seq = (VAEncSequenceParameterBufferHEVC){ - .general_profile_idc = 1, // Main profile - .general_level_idc = 120, // Level 4 - .general_tier_flag = 0, // Main tier - - .intra_period = 120, // Where this one comes from? - .intra_idr_period = 120, // Each I frame is an IDR frame - .ip_period = 1, // No B-frames - .bits_per_second = 0, // TODO (investigate) - - .pic_width_in_luma_samples = pic_width_in_luma_samples, - .pic_height_in_luma_samples = pic_height_in_luma_samples, - - .seq_fields.bits = - { - .chroma_format_idc = 1, // 4:2:0 - .separate_colour_plane_flag = 0, // Table 6-1 - .bit_depth_luma_minus8 = 0, // 8 bpp luma - .bit_depth_chroma_minus8 = 0, // 8 bpp chroma - .scaling_list_enabled_flag = 0, // defaulted - .strong_intra_smoothing_enabled_flag = 0, // defaulted - - // mburakov: ffmpeg hardcodes these for i965 Skylake driver. - .amp_enabled_flag = 1, // TODO (quirks) - .sample_adaptive_offset_enabled_flag = 0, // TODO (quirks) - .pcm_enabled_flag = 0, // TODO (quirks) - .pcm_loop_filter_disabled_flag = 0, // defaulted - .sps_temporal_mvp_enabled_flag = 0, // TODO (quirks) - - .low_delay_seq = 1, // No B-frames - .hierachical_flag = 0, // defaulted - }, - - // mburakov: ffmpeg hardcodes these for i965 Skylake driver. - .log2_min_luma_coding_block_size_minus3 = 0, // TODO (quirks) - .log2_diff_max_min_luma_coding_block_size = 2, // TODO (quirks) - .log2_min_transform_block_size_minus2 = 0, // hardcoded - .log2_diff_max_min_transform_block_size = 3, // hardcoded - .max_transform_hierarchy_depth_inter = 3, // hardcoded - .max_transform_hierarchy_depth_intra = 3, // hardcoded - - .pcm_sample_bit_depth_luma_minus1 = 0, // defaulted - .pcm_sample_bit_depth_chroma_minus1 = 0, // defaulted - .log2_min_pcm_luma_coding_block_size_minus3 = 0, // defaulted - .log2_max_pcm_luma_coding_block_size_minus3 = 0, // defaulted - - .vui_parameters_present_flag = 1, - .vui_fields.bits = - { - .aspect_ratio_info_present_flag = 0, // defaulted - .neutral_chroma_indication_flag = 0, // defaulted - .field_seq_flag = 0, // defaulted - .vui_timing_info_present_flag = 1, // hardcoded - .bitstream_restriction_flag = 1, // hardcoded - .tiles_fixed_structure_flag = 0, // defaulted - .motion_vectors_over_pic_boundaries_flag = 1, // hardcoded - .restricted_ref_pic_lists_flag = 1, // hardcoded - .log2_max_mv_length_horizontal = 15, // hardcoded - .log2_max_mv_length_vertical = 15, // hardcoded - }, - - .vui_num_units_in_tick = 1, // TODO (investigate) - .vui_time_scale = 60, // TODO (investigate) - .min_spatial_segmentation_idc = 0, // defaulted - .max_bytes_per_pic_denom = 0, // hardcoded - .max_bits_per_min_cu_denom = 0, // hardcoded - - .scc_fields.bits = - { - .palette_mode_enabled_flag = 0, // defaulted - }, - }; -} - -static void InitializePicHeader(struct EncodeContext* encode_context) { - const typeof(encode_context->seq.seq_fields.bits)* seq_bits = - &encode_context->seq.seq_fields.bits; - - uint8_t collocated_ref_pic_index = - seq_bits->sps_temporal_mvp_enabled_flag ? 0 : 0xff; - - encode_context->pic = (VAEncPictureParameterBufferHEVC){ - .decoded_curr_pic = - { - .picture_id = VA_INVALID_ID, // dynamic - .flags = VA_PICTURE_HEVC_INVALID, // dynamic - }, - - // .reference_frames[15], - - .coded_buf = encode_context->output_buffer_id, - .collocated_ref_pic_index = collocated_ref_pic_index, - .last_picture = 0, // hardcoded - - .pic_init_qp = 30, // Fixed quality - .diff_cu_qp_delta_depth = 0, // Fixed quality - .pps_cb_qp_offset = 0, // hardcoded - .pps_cr_qp_offset = 0, // hardcoded - - .num_tile_columns_minus1 = 0, // No tiles - .num_tile_rows_minus1 = 0, // No tiles - .column_width_minus1 = {0}, // No tiles - .row_height_minus1 = {0}, // No tiles - - .log2_parallel_merge_level_minus2 = 0, // defaulted - .ctu_max_bitsize_allowed = 0, // hardcoded - .num_ref_idx_l0_default_active_minus1 = 0, // hardcoded - .num_ref_idx_l1_default_active_minus1 = 0, // hardcoded - .slice_pic_parameter_set_id = 0, // hardcoded - .nal_unit_type = 0, // dynamic - - .pic_fields.bits = - { - .idr_pic_flag = 0, // dynamic - .coding_type = 0, // dynamic - .reference_pic_flag = 1, // No B-frames - - .dependent_slice_segments_enabled_flag = 0, // defaulted - .sign_data_hiding_enabled_flag = 0, // defaulted - .constrained_intra_pred_flag = 0, // defaulted - .transform_skip_enabled_flag = 0, // TODO (quirks) - .cu_qp_delta_enabled_flag = 0, // Fixed quality - .weighted_pred_flag = 0, // defaulted - .weighted_bipred_flag = 0, // defaulted - .transquant_bypass_enabled_flag = 0, // defaulted - .tiles_enabled_flag = 0, // No tiles - .entropy_coding_sync_enabled_flag = 0, // defaulted - .loop_filter_across_tiles_enabled_flag = 0, // No tiles - - .pps_loop_filter_across_slices_enabled_flag = 1, // hardcoded - .scaling_list_data_present_flag = 0, // defaulted - - .screen_content_flag = 0, // TODO (investigate) - .enable_gpu_weighted_prediction = 0, // hardcoded - .no_output_of_prior_pics_flag = 0, // hardcoded - }, - - .hierarchical_level_plus1 = 0, // defaulted - .scc_fields.bits = - { - .pps_curr_pic_ref_enabled_flag = 0, // defaulted - }, - }; - - for (size_t i = 0; i < LENGTH(encode_context->pic.reference_frames); i++) { - encode_context->pic.reference_frames[i] = (VAPictureHEVC){ - .picture_id = VA_INVALID_ID, - .flags = VA_PICTURE_HEVC_INVALID, - }; - } -} - -static void InitializeSliceHeader(struct EncodeContext* encode_context, - uint32_t num_ctu_in_slice) { - const typeof(encode_context->seq.seq_fields.bits)* seq_bits = - &encode_context->seq.seq_fields.bits; - - encode_context->slice = (VAEncSliceParameterBufferHEVC){ - .slice_segment_address = 0, // No slice segments - .num_ctu_in_slice = num_ctu_in_slice, - - .slice_type = 0, // dynamic - .slice_pic_parameter_set_id = - encode_context->pic.slice_pic_parameter_set_id, - - .num_ref_idx_l0_active_minus1 = - encode_context->pic.num_ref_idx_l0_default_active_minus1, - .num_ref_idx_l1_active_minus1 = - encode_context->pic.num_ref_idx_l1_default_active_minus1, - - .luma_log2_weight_denom = 0, // defaulted - .delta_chroma_log2_weight_denom = 0, // defaulted - - // .delta_luma_weight_l0[15], - // .luma_offset_l0[15], - // .delta_chroma_weight_l0[15][2], - // .chroma_offset_l0[15][2], - // .delta_luma_weight_l1[15], - // .luma_offset_l1[15], - // .delta_chroma_weight_l1[15][2], - // .chroma_offset_l1[15][2], - - .max_num_merge_cand = 5, // defaulted - .slice_qp_delta = 0, // Fixed quality - .slice_cb_qp_offset = 0, // defaulted - .slice_cr_qp_offset = 0, // defaulted - - .slice_beta_offset_div2 = 0, // defaulted - .slice_tc_offset_div2 = 0, // defaulted - - .slice_fields.bits = - { - .last_slice_of_pic_flag = 1, // No slice segments - .dependent_slice_segment_flag = 0, // No slice segments - .colour_plane_id = 0, // defaulted - .slice_temporal_mvp_enabled_flag = - seq_bits->sps_temporal_mvp_enabled_flag, - .slice_sao_luma_flag = - seq_bits->sample_adaptive_offset_enabled_flag, - .slice_sao_chroma_flag = - seq_bits->sample_adaptive_offset_enabled_flag, - .num_ref_idx_active_override_flag = 0, // hardcoded - .mvd_l1_zero_flag = 0, // defaulted - .cabac_init_flag = 0, // defaulted - .slice_deblocking_filter_disabled_flag = 0, // defaulted - .slice_loop_filter_across_slices_enabled_flag = 0, // defaulted - .collocated_from_l0_flag = 0, // No B-frames - }, - - .pred_weight_table_bit_offset = 0, // defaulted - .pred_weight_table_bit_length = 0, // defaulted - }; - - for (size_t i = 0; i < LENGTH(encode_context->slice.ref_pic_list0); i++) { - encode_context->slice.ref_pic_list0[i] = (VAPictureHEVC){ - .picture_id = VA_INVALID_ID, - .flags = VA_PICTURE_HEVC_INVALID, - }; - } - - for (size_t i = 0; i < LENGTH(encode_context->slice.ref_pic_list1); i++) { - encode_context->slice.ref_pic_list1[i] = (VAPictureHEVC){ - .picture_id = VA_INVALID_ID, - .flags = VA_PICTURE_HEVC_INVALID, - }; - } -} - -struct EncodeContext* EncodeContextCreate(struct GpuContext* gpu_context, - uint32_t width, uint32_t height, - enum YuvColorspace colorspace, - enum YuvRange range) { - struct EncodeContext* encode_context = malloc(sizeof(struct EncodeContext)); - if (!encode_context) { - LOG("Faield to allocate encode context (%s)", strerror(errno)); - return NULL; - } - - *encode_context = (struct EncodeContext){ - .gpu_context = gpu_context, - .width = width, - .height = height, - .colorspace = colorspace, - .range = range, - }; - - encode_context->render_node = open("/dev/dri/renderD128", O_RDWR); - if (encode_context->render_node == -1) { - LOG("Failed to open render node (%s)", strerror(errno)); - goto rollback_encode_context; - } - - encode_context->va_display = vaGetDisplayDRM(encode_context->render_node); - if (!encode_context->va_display) { - LOG("Failed to get va display (%s)", strerror(errno)); - goto rollback_render_node; - } - - vaSetErrorCallback(encode_context->va_display, OnVaLogMessage, NULL); -#ifndef NDEBUG - vaSetInfoCallback(encode_context->va_display, OnVaLogMessage, NULL); -#endif // NDEBUG - - int major, minor; - VAStatus status = vaInitialize(encode_context->va_display, &major, &minor); - if (status != VA_STATUS_SUCCESS) { - LOG("Failed to initialize va (%s)", VaErrorString(status)); - goto rollback_va_display; - } - - LOG("Initialized VA %d.%d", major, minor); - // TODO(mburakov): Check entry points? - - VAConfigAttrib attrib_list[] = { - {.type = VAConfigAttribRTFormat, .value = VA_RT_FORMAT_YUV420}, - }; - status = vaCreateConfig(encode_context->va_display, VAProfileHEVCMain, - VAEntrypointEncSlice, attrib_list, - LENGTH(attrib_list), &encode_context->va_config_id); - if (status != VA_STATUS_SUCCESS) { - LOG("Failed to create va config (%s)", VaErrorString(status)); - goto rollback_va_display; - } - - if (!InitializeCodecQuirks(encode_context)) { - LOG("Failed to initialize codec quirks"); - goto rollback_va_config_id; - } - - // TODO(mburakov): ffmpeg attempts to deduce this. - static const uint32_t min_cb_size = 16; - uint32_t width_in_cb = (width + min_cb_size - 1) / min_cb_size; - uint32_t height_in_cb = (height + min_cb_size - 1) / min_cb_size; - - // TODO(mburakov): ffmpeg attempts to deduce this. - static const uint32_t slice_block_size = 32; - uint32_t slice_block_rows = - (encode_context->width + slice_block_size - 1) / slice_block_size; - uint32_t slice_block_cols = - (encode_context->height + slice_block_size - 1) / slice_block_size; - uint32_t num_ctu_in_slice = slice_block_rows * slice_block_cols; - - status = vaCreateContext( - encode_context->va_display, encode_context->va_config_id, - (int)(width_in_cb * min_cb_size), (int)(height_in_cb * min_cb_size), - VA_PROGRESSIVE, NULL, 0, &encode_context->va_context_id); - if (status != VA_STATUS_SUCCESS) { - LOG("Failed to create va context (%s)", VaErrorString(status)); - goto rollback_va_config_id; - } - - status = - vaCreateSurfaces(encode_context->va_display, VA_RT_FORMAT_YUV420, width, - height, &encode_context->input_surface_id, 1, NULL, 0); - if (status != VA_STATUS_SUCCESS) { - LOG("Failed to create va input surface (%s)", VaErrorString(status)); - goto rollback_va_context_id; - } - - encode_context->gpu_frame = VaSurfaceToGpuFrame( - encode_context->va_display, encode_context->input_surface_id, - encode_context->gpu_context); - if (!encode_context->gpu_frame) { - LOG("Failed to convert va surface to gpu frame"); - goto rollback_input_surface_id; - } - - status = - vaCreateSurfaces(encode_context->va_display, VA_RT_FORMAT_YUV420, - width_in_cb * min_cb_size, height_in_cb * min_cb_size, - encode_context->recon_surface_ids, - LENGTH(encode_context->recon_surface_ids), NULL, 0); - if (status != VA_STATUS_SUCCESS) { - LOG("Failed to create va recon surfaces (%s)", VaErrorString(status)); - goto rollback_gpu_frame; - } - - unsigned int max_encoded_size = - encode_context->width * encode_context->height * 3 / 2; - status = - vaCreateBuffer(encode_context->va_display, encode_context->va_context_id, - VAEncCodedBufferType, max_encoded_size, 1, NULL, - &encode_context->output_buffer_id); - if (status != VA_STATUS_SUCCESS) { - LOG("Failed to create va output buffer (%s)", VaErrorString(status)); - goto rollback_recon_surface_ids; - } - - InitializeSeqHeader(encode_context, (uint16_t)(width_in_cb * min_cb_size), - (uint16_t)(height_in_cb * min_cb_size)); - InitializePicHeader(encode_context); - InitializeSliceHeader(encode_context, num_ctu_in_slice); - return encode_context; - -rollback_recon_surface_ids: - vaDestroySurfaces(encode_context->va_display, - encode_context->recon_surface_ids, - LENGTH(encode_context->recon_surface_ids)); -rollback_gpu_frame: - GpuContextDestroyFrame(encode_context->gpu_context, - encode_context->gpu_frame); -rollback_input_surface_id: - vaDestroySurfaces(encode_context->va_display, - &encode_context->input_surface_id, 1); -rollback_va_context_id: - vaDestroyContext(encode_context->va_display, encode_context->va_config_id); -rollback_va_config_id: - vaDestroyConfig(encode_context->va_display, encode_context->va_config_id); -rollback_va_display: - vaTerminate(encode_context->va_display); -rollback_render_node: - close(encode_context->render_node); -rollback_encode_context: - free(encode_context); - return NULL; -} - -const struct GpuFrame* EncodeContextGetFrame( - struct EncodeContext* encode_context) { - return encode_context->gpu_frame; -} - -static bool UploadBuffer(const struct EncodeContext* encode_context, - VABufferType va_buffer_type, unsigned int size, - void* data, VABufferID** presult) { - VAStatus status = - vaCreateBuffer(encode_context->va_display, encode_context->va_context_id, - va_buffer_type, size, 1, data, *presult); - if (status != VA_STATUS_SUCCESS) { - LOG("Failed to create buffer (%s)", VaErrorString(status)); - return false; - } - (*presult)++; - return true; -} - -static bool UploadPackedBuffer(const struct EncodeContext* encode_context, - VAEncPackedHeaderType packed_header_type, - unsigned int bit_length, void* data, - VABufferID** presult) { - VAEncPackedHeaderParameterBuffer packed_header = { - .type = packed_header_type, - .bit_length = bit_length, - .has_emulation_bytes = 1, - }; - return UploadBuffer(encode_context, VAEncPackedHeaderParameterBufferType, - sizeof(packed_header), &packed_header, presult) && - UploadBuffer(encode_context, VAEncPackedHeaderDataBufferType, - (bit_length + 7) / 8, data, presult); -} - -static void UpdatePicHeader(struct EncodeContext* encode_context, bool idr) { - encode_context->pic.decoded_curr_pic = (VAPictureHEVC){ - .picture_id = - encode_context - ->recon_surface_ids[encode_context->frame_counter % - LENGTH(encode_context->recon_surface_ids)], - .pic_order_cnt = (int32_t)(encode_context->frame_counter % - encode_context->seq.intra_idr_period), - }; - - if (idr) { - encode_context->pic.reference_frames[0] = (VAPictureHEVC){ - .picture_id = VA_INVALID_ID, - .flags = VA_PICTURE_HEVC_INVALID, - }; - encode_context->pic.nal_unit_type = IDR_W_RADL; - encode_context->pic.pic_fields.bits.idr_pic_flag = 1; - encode_context->pic.pic_fields.bits.coding_type = 1; - } else { - encode_context->pic.reference_frames[0] = (VAPictureHEVC){ - .picture_id = - encode_context - ->recon_surface_ids[(encode_context->frame_counter - 1) % - LENGTH(encode_context->recon_surface_ids)], - .pic_order_cnt = (int32_t)((encode_context->frame_counter - 1) % - encode_context->seq.intra_idr_period), - }; - encode_context->pic.nal_unit_type = TRAIL_R; - encode_context->pic.pic_fields.bits.idr_pic_flag = 0; - encode_context->pic.pic_fields.bits.coding_type = 2; - } -} - -static bool DrainBuffers(int fd, struct iovec* iovec, int count) { - for (;;) { - ssize_t result = writev(fd, iovec, count); - if (result < 0) { - if (errno == EINTR) continue; - LOG("Failed to write (%s)", strerror(errno)); - return false; - } - for (int i = 0; i < count; i++) { - size_t delta = MIN((size_t)result, iovec[i].iov_len); - iovec[i].iov_base = (uint8_t*)iovec[i].iov_base + delta; - iovec[i].iov_len -= delta; - result -= delta; - } - if (!result) return true; - } -} - -bool EncodeContextEncodeFrame(struct EncodeContext* encode_context, int fd) { - bool result = false; - VABufferID buffers[8]; - VABufferID* buffer_ptr = buffers; - - bool idr = - !(encode_context->frame_counter % encode_context->seq.intra_idr_period); - if (idr && !UploadBuffer(encode_context, VAEncSequenceParameterBufferType, - sizeof(encode_context->seq), &encode_context->seq, - &buffer_ptr)) { - LOG("Failed to upload sequence parameter buffer"); - goto rollback_buffers; - } - - if (encode_context->codec_quirks.packed_header_sequence && idr) { - char buffer[256]; - struct Bitstream bitstream = { - .data = buffer, - .size = 0, - }; - - static const struct MoreVideoParameters mvp = { - .vps_max_dec_pic_buffering_minus1 = 1, // No B-frames - .vps_max_num_reorder_pics = 0, // No B-frames - }; - uint32_t conf_win_right_offset_luma = - encode_context->seq.pic_width_in_luma_samples - encode_context->width; - uint32_t conf_win_bottom_offset_luma = - encode_context->seq.pic_height_in_luma_samples - encode_context->height; - const struct MoreSeqParameters msp = { - .conf_win_left_offset = 0, - .conf_win_right_offset = conf_win_right_offset_luma / 2, - .conf_win_top_offset = 0, - .conf_win_bottom_offset = conf_win_bottom_offset_luma / 2, - .sps_max_dec_pic_buffering_minus1 = 1, // No B-frames - .sps_max_num_reorder_pics = 0, // No B-frames - .video_signal_type_present_flag = 1, - .video_full_range_flag = encode_context->range == kFullRange, - .colour_description_present_flag = 1, - .colour_primaries = 2, // Unsepcified - .transfer_characteristics = 2, // Unspecified - .matrix_coeffs = - encode_context->colorspace == kItuRec601 ? 6 : 1, // Table E.5 - }; - - PackVideoParameterSetNalUnit(&bitstream, &encode_context->seq, &mvp); - PackSeqParameterSetNalUnit(&bitstream, &encode_context->seq, &msp); - PackPicParameterSetNalUnit(&bitstream, &encode_context->pic); - if (!UploadPackedBuffer(encode_context, VAEncPackedHeaderSequence, - (unsigned int)bitstream.size, bitstream.data, - &buffer_ptr)) { - LOG("Failed to upload packed sequence header"); - goto rollback_buffers; - } - } - - UpdatePicHeader(encode_context, idr); - if (!UploadBuffer(encode_context, VAEncPictureParameterBufferType, - sizeof(encode_context->pic), &encode_context->pic, - &buffer_ptr)) { - LOG("Failed to upload picture parameter buffer"); - goto rollback_buffers; - } - - encode_context->slice.slice_type = idr ? I : P; - encode_context->slice.ref_pic_list0[0] = - encode_context->pic.reference_frames[0]; - if (encode_context->codec_quirks.packed_header_slice) { - char buffer[256]; - struct Bitstream bitstream = { - .data = buffer, - .size = 0, - }; - static const struct NegativePics negative_pics[] = { - { - .delta_poc_s0_minus1 = 0, - .used_by_curr_pic_s0_flag = true, - }, - }; - const struct MoreSliceParamerters msp = { - .first_slice_segment_in_pic_flag = 1, - .num_negative_pics = idr ? 0 : LENGTH(negative_pics), - .negative_pics = idr ? NULL : negative_pics, - }; - PackSliceSegmentHeaderNalUnit(&bitstream, &encode_context->seq, - &encode_context->pic, &encode_context->slice, - &msp); - if (!UploadPackedBuffer(encode_context, VAEncPackedHeaderSlice, - (unsigned int)bitstream.size, bitstream.data, - &buffer_ptr)) { - LOG("Failed to upload packed sequence header"); - goto rollback_buffers; - } - } - - if (!UploadBuffer(encode_context, VAEncSliceParameterBufferType, - sizeof(encode_context->slice), &encode_context->slice, - &buffer_ptr)) { - LOG("Failed to upload slice parameter buffer"); - goto rollback_buffers; - } - - VAStatus status = - vaBeginPicture(encode_context->va_display, encode_context->va_context_id, - encode_context->input_surface_id); - if (status != VA_STATUS_SUCCESS) { - LOG("Failed to begin va picture (%s)", VaErrorString(status)); - goto rollback_buffers; - } - - int num_buffers = (int)(buffer_ptr - buffers); - status = vaRenderPicture(encode_context->va_display, - encode_context->va_context_id, buffers, num_buffers); - if (status != VA_STATUS_SUCCESS) { - LOG("Failed to render va picture (%s)", VaErrorString(status)); - goto rollback_buffers; - } - - status = - vaEndPicture(encode_context->va_display, encode_context->va_context_id); - if (status != VA_STATUS_SUCCESS) { - LOG("Failed to end va picture (%s)", VaErrorString(status)); - goto rollback_buffers; - } - - status = vaSyncBuffer(encode_context->va_display, - encode_context->output_buffer_id, VA_TIMEOUT_INFINITE); - if (status != VA_STATUS_SUCCESS) { - LOG("Failed to sync va buffer (%s)", VaErrorString(status)); - goto rollback_buffers; - } - - VACodedBufferSegment* segment; - status = vaMapBuffer(encode_context->va_display, - encode_context->output_buffer_id, (void**)&segment); - if (status != VA_STATUS_SUCCESS) { - LOG("Failed to map va buffer (%s)", VaErrorString(status)); - goto rollback_buffers; - } - if (segment->next != NULL) { - LOG("Next segment non-null!"); - abort(); - } - - struct iovec iovec[] = { - {.iov_base = &segment->size, .iov_len = sizeof(segment->size)}, - {.iov_base = segment->buf, .iov_len = segment->size}, - }; - if (!DrainBuffers(fd, iovec, LENGTH(iovec))) { - LOG("Failed to drain encoded frame"); - goto rollback_segment; - } - - encode_context->frame_counter++; - result = true; - -rollback_segment: - vaUnmapBuffer(encode_context->va_display, encode_context->output_buffer_id); -rollback_buffers: - while (buffer_ptr-- > buffers) - vaDestroyBuffer(encode_context->va_display, *buffer_ptr); - return result; -} - -void EncodeContextDestroy(struct EncodeContext* encode_context) { - vaDestroyBuffer(encode_context->va_display, encode_context->output_buffer_id); - GpuContextDestroyFrame(encode_context->gpu_context, - encode_context->gpu_frame); - vaDestroySurfaces(encode_context->va_display, - &encode_context->input_surface_id, 1); - vaDestroyContext(encode_context->va_display, encode_context->va_context_id); - vaDestroyConfig(encode_context->va_display, encode_context->va_config_id); - vaTerminate(encode_context->va_display); - close(encode_context->render_node); - free(encode_context); -} -- cgit v1.2.3