[FFmpeg-devel] [PATCH 2/2] lavc: add h264_vulkan hardware encoder
Benjamin Cheng
ben at bcheng.me
Tue Sep 10 16:30:20 EEST 2024
On Mon Sep 9, 2024 at 6:37 AM EDT, Lynne via ffmpeg-devel wrote:
> This commit adds the first Vulkan hardware encoder.
>
> Currently, P, and **B**-frames are supported. This marks the
> first implementation to support both.
>
> The encoder has feature-parity with VAAPI.
> ---
> configure | 1 +
> libavcodec/Makefile | 3 +
> libavcodec/allcodecs.c | 1 +
> libavcodec/vulkan_encode_h264.c | 1687 +++++++++++++++++++++++++++++++
> 4 files changed, 1692 insertions(+)
> create mode 100644 libavcodec/vulkan_encode_h264.c
>
> diff --git a/configure b/configure
> index 6cfb736a86..ebb8be73ad 100755
> --- a/configure
> +++ b/configure
> @@ -3366,6 +3366,7 @@ h264_qsv_encoder_select="atsc_a53 qsvenc"
> h264_rkmpp_decoder_deps="rkmpp"
> h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
> h264_vaapi_encoder_select="atsc_a53 cbs_h264 vaapi_encode"
> +h264_vulkan_encoder_select="cbs_h264 vulkan_encode"
> h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
> h264_v4l2m2m_decoder_select="h264_mp4toannexb_bsf"
> h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
> diff --git a/libavcodec/Makefile b/libavcodec/Makefile
> index ff6a3c4efc..d4eefa28a2 100644
> --- a/libavcodec/Makefile
> +++ b/libavcodec/Makefile
> @@ -429,6 +429,9 @@ OBJS-$(CONFIG_H264_VAAPI_ENCODER) += vaapi_encode_h264.o h264_levels.o \
> OBJS-$(CONFIG_H264_VIDEOTOOLBOX_ENCODER) += videotoolboxenc.o
> OBJS-$(CONFIG_H264_V4L2M2M_DECODER) += v4l2_m2m_dec.o
> OBJS-$(CONFIG_H264_V4L2M2M_ENCODER) += v4l2_m2m_enc.o
> +OBJS-$(CONFIG_H264_VULKAN_ENCODER) += vulkan_encode.o vulkan_encode_h264.o \
> + hw_base_encode.o hw_base_encode_h264.o \
> + h264_levels.o h2645data.o
> OBJS-$(CONFIG_HAP_DECODER) += hapdec.o hap.o
> OBJS-$(CONFIG_HAP_ENCODER) += hapenc.o hap.o
> OBJS-$(CONFIG_HCA_DECODER) += hcadec.o
> diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
> index d773ac36c2..cfd929b81f 100644
> --- a/libavcodec/allcodecs.c
> +++ b/libavcodec/allcodecs.c
> @@ -850,6 +850,7 @@ extern const FFCodec ff_h264_qsv_encoder;
> extern const FFCodec ff_h264_v4l2m2m_encoder;
> extern const FFCodec ff_h264_vaapi_encoder;
> extern const FFCodec ff_h264_videotoolbox_encoder;
> +extern const FFCodec ff_h264_vulkan_encoder;
> extern const FFCodec ff_hevc_amf_encoder;
> extern const FFCodec ff_hevc_cuvid_decoder;
> extern const FFCodec ff_hevc_d3d12va_encoder;
> diff --git a/libavcodec/vulkan_encode_h264.c b/libavcodec/vulkan_encode_h264.c
> new file mode 100644
> index 0000000000..529ac8aed2
> --- /dev/null
> +++ b/libavcodec/vulkan_encode_h264.c
> @@ -0,0 +1,1687 @@
> +/*
> + * This file is part of FFmpeg.
> + *
> + * FFmpeg is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU Lesser General Public
> + * License as published by the Free Software Foundation; either
> + * version 2.1 of the License, or (at your option) any later version.
> + *
> + * FFmpeg 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
> + * Lesser General Public License for more details.
> + *
> + * You should have received a copy of the GNU Lesser General Public
> + * License along with FFmpeg; if not, write to the Free Software
> + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
> + */
> +
> +#include "libavutil/opt.h"
> +#include "libavutil/mem.h"
> +
> +#include "cbs.h"
> +#include "cbs_h264.h"
> +#include "atsc_a53.h"
> +
> +#include "h264_levels.h"
> +#include "h2645data.h"
> +#include "codec_internal.h"
> +#include "version.h"
> +#include "hw_base_encode_h264.h"
> +
> +#include "vulkan_encode.h"
> +
> +enum UnitElems {
> + UNIT_AUD = 1 << 0,
> + UNIT_SEI_TIMING = 1 << 1,
> + UNIT_SEI_IDENTIFIER = 1 << 2,
> + UNIT_SEI_RECOVERY = 1 << 3,
> + UNIT_SEI_A53_CC = 1 << 4,
> +};
> +
> +const FFVulkanEncodeDescriptor ff_vk_enc_h264_desc = {
> + .codec_id = AV_CODEC_ID_H264,
> + .encode_extension = FF_VK_EXT_VIDEO_ENCODE_H264,
> + .encode_op = VK_VIDEO_CODEC_OPERATION_ENCODE_H264_BIT_KHR,
> + .ext_props = {
> + .extensionName = VK_STD_VULKAN_VIDEO_CODEC_H264_ENCODE_EXTENSION_NAME,
> + .specVersion = VK_STD_VULKAN_VIDEO_CODEC_H264_ENCODE_SPEC_VERSION,
> + },
> +};
> +
> +/* Random (version 4) ISO 11578 UUID. */
> +static const uint8_t vulkan_encode_h264_sei_identifier_uuid[16] = {
> + 0x03, 0xfd, 0xf2, 0x0a, 0x5d, 0x4c, 0x05, 0x48,
> + 0x20, 0x98, 0xca, 0x6b, 0x0c, 0x95, 0x30, 0x1c,
> +};
> +
> +typedef struct VulkanEncodeH264Picture {
> + int frame_num;
> + int64_t last_idr_frame;
> + uint16_t idr_pic_id;
> + int primary_pic_type;
> + int slice_type;
> + int pic_order_cnt;
> +
> + enum UnitElems units_needed;
> +
> + VkVideoEncodeH264RateControlInfoKHR vkrc_info;
> + VkVideoEncodeH264RateControlLayerInfoKHR vkrc_layer_info;
> +
> + StdVideoEncodeH264WeightTable slice_wt;
> + StdVideoEncodeH264SliceHeader slice_hdr;
> + VkVideoEncodeH264NaluSliceInfoKHR vkslice;
> +
> + StdVideoEncodeH264PictureInfo h264pic_info;
> + VkVideoEncodeH264PictureInfoKHR vkh264pic_info;
> +
> + StdVideoEncodeH264ReferenceInfo h264dpb_info;
> + VkVideoEncodeH264DpbSlotInfoKHR vkh264dpb_info;
> +
> + StdVideoEncodeH264RefListModEntry mods[MAX_REFERENCE_LIST_NUM][H264_MAX_RPLM_COUNT];
> + StdVideoEncodeH264RefPicMarkingEntry mmco[H264_MAX_RPLM_COUNT];
> + StdVideoEncodeH264ReferenceListsInfo ref_list_info;
> +} VulkanEncodeH264Picture;
> +
> +typedef struct VulkanEncodeH264Context {
> + FFVulkanEncodeContext common;
> +
> + FFHWBaseEncodeH264 units;
> + FFHWBaseEncodeH264Opts unit_opts;
> +
> + enum UnitElems unit_elems;
> +
> + uint8_t fixed_qp_idr;
> + uint8_t fixed_qp_p;
> + uint8_t fixed_qp_b;
> +
> + VkVideoEncodeH264ProfileInfoKHR profile;
> +
> + VkVideoEncodeH264CapabilitiesKHR caps;
> + VkVideoEncodeH264QualityLevelPropertiesKHR quality_props;
> +
> + CodedBitstreamContext *cbs;
> + CodedBitstreamFragment current_access_unit;
> +
> + H264RawAUD raw_aud;
> +
> + SEIRawUserDataUnregistered sei_identifier;
> + H264RawSEIPicTiming sei_pic_timing;
> + H264RawSEIRecoveryPoint sei_recovery_point;
> + SEIRawUserDataRegistered sei_a53cc;
> + void *sei_a53cc_data;
> + char *sei_identifier_string;
> +} VulkanEncodeH264Context;
> +
> +static int init_pic_rc(AVCodecContext *avctx, FFHWBaseEncodePicture *pic,
> + VkVideoEncodeRateControlInfoKHR *rc_info,
> + VkVideoEncodeRateControlLayerInfoKHR *rc_layer)
> +{
> + VulkanEncodeH264Context *enc = avctx->priv_data;
> + FFVulkanEncodeContext *ctx = &enc->common;
> + VulkanEncodeH264Picture *hp = pic->codec_priv;
> +
> + hp->vkrc_info = (VkVideoEncodeH264RateControlInfoKHR) {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_RATE_CONTROL_INFO_KHR,
> + .flags = VK_VIDEO_ENCODE_H264_RATE_CONTROL_REFERENCE_PATTERN_FLAT_BIT_KHR |
> + VK_VIDEO_ENCODE_H264_RATE_CONTROL_REGULAR_GOP_BIT_KHR,
> + .idrPeriod = ctx->base.gop_size,
> + .gopFrameCount = ctx->base.gop_size,
> + .consecutiveBFrameCount = FFMAX(ctx->base.b_per_p - 1, 0),
> + .temporalLayerCount = 0,
> + };
> +
> + rc_info->pNext = &hp->vkrc_info;
> + rc_info->virtualBufferSizeInMs = enc->unit_opts.hrd_buffer_size;
> + rc_info->initialVirtualBufferSizeInMs = enc->unit_opts.initial_buffer_fullness;
> +
> + if (rc_info->rateControlMode > VK_VIDEO_ENCODE_RATE_CONTROL_MODE_DISABLED_BIT_KHR) {
> + hp->vkrc_layer_info = (VkVideoEncodeH264RateControlLayerInfoKHR) {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_RATE_CONTROL_LAYER_INFO_KHR,
> +
> + .useMinQp = avctx->qmin > 0,
> + .minQp.qpI = avctx->qmin > 0 ? avctx->qmin : 0,
> + .minQp.qpP = avctx->qmin > 0 ? avctx->qmin : 0,
> + .minQp.qpB = avctx->qmin > 0 ? avctx->qmin : 0,
> +
> + .useMaxQp = avctx->qmax > 0,
> + .maxQp.qpI = avctx->qmax > 0 ? avctx->qmax : 0,
> + .maxQp.qpP = avctx->qmax > 0 ? avctx->qmax : 0,
> + .maxQp.qpB = avctx->qmax > 0 ? avctx->qmax : 0,
> +
> + .useMaxFrameSize = 0,
> + };
> + rc_layer->pNext = &hp->vkrc_layer_info;
> + hp->vkrc_info.temporalLayerCount = 1;
> + }
> +
> + return 0;
> +}
> +
> +static int vk_enc_h264_update_pic_info(AVCodecContext *avctx,
> + FFHWBaseEncodePicture *pic)
> +{
> + VulkanEncodeH264Context *enc = avctx->priv_data;
> + FFVulkanEncodeContext *ctx = &enc->common;
> + VulkanEncodeH264Picture *hp = pic->codec_priv;
> + FFHWBaseEncodePicture *prev = pic->prev;
> + VulkanEncodeH264Picture *hprev = prev ? prev->codec_priv : NULL;
> +
> + if (pic->type == FF_HW_PICTURE_TYPE_IDR) {
> + av_assert0(pic->display_order == pic->encode_order);
> +
> + hp->frame_num = 0;
> + hp->last_idr_frame = pic->display_order;
> + hp->idr_pic_id = hprev ? hprev->idr_pic_id + 1 : 0;
> +
> + hp->primary_pic_type = 0;
> + hp->slice_type = STD_VIDEO_H264_SLICE_TYPE_I;
> + } else {
> + av_assert0(prev);
> +
> + hp->frame_num = hprev->frame_num + prev->is_reference;
> +
> + hp->last_idr_frame = hprev->last_idr_frame;
> + hp->idr_pic_id = hprev->idr_pic_id;
> +
> + if (pic->type == FF_HW_PICTURE_TYPE_I) {
> + hp->slice_type = STD_VIDEO_H264_SLICE_TYPE_I;
> + hp->primary_pic_type = 0;
> + } else if (pic->type == FF_HW_PICTURE_TYPE_P) {
> + hp->slice_type = STD_VIDEO_H264_SLICE_TYPE_P;
> + hp->primary_pic_type = 1;
> + } else {
> + hp->slice_type = STD_VIDEO_H264_SLICE_TYPE_B;
> + hp->primary_pic_type = 2;
> + }
> + }
> +
> + hp->pic_order_cnt = pic->display_order - hp->last_idr_frame;
> + if (enc->units.raw_sps.pic_order_cnt_type == 2)
> + hp->pic_order_cnt *= 2;
> +
> + hp->units_needed = 0;
> +
> + if (enc->unit_elems & UNIT_SEI_IDENTIFIER && pic->encode_order == 0)
> + hp->units_needed |= UNIT_SEI_IDENTIFIER;
> +
> + if (enc->unit_elems & UNIT_SEI_TIMING) {
> + enc->sei_pic_timing = (H264RawSEIPicTiming) {
> + .cpb_removal_delay = 2 * (pic->encode_order - hp->last_idr_frame),
> + .dpb_output_delay = 2 * (pic->display_order - pic->encode_order + ctx->base.max_b_depth),
> + };
> +
> + hp->units_needed |= UNIT_SEI_TIMING;
> + }
> +
> + if (enc->unit_elems & UNIT_SEI_RECOVERY && pic->type == FF_HW_PICTURE_TYPE_I) {
> + enc->sei_recovery_point = (H264RawSEIRecoveryPoint) {
> + .recovery_frame_cnt = 0,
> + .exact_match_flag = 1,
> + .broken_link_flag = ctx->base.b_per_p > 0,
> + };
> +
> + hp->units_needed |= UNIT_SEI_RECOVERY;
> + }
> +
> + if (enc->unit_elems & UNIT_SEI_A53_CC) {
> + int err;
> + size_t sei_a53cc_len;
> + av_freep(&enc->sei_a53cc_data);
> + err = ff_alloc_a53_sei(pic->input_image, 0, &enc->sei_a53cc_data, &sei_a53cc_len);
> + if (err < 0)
> + return err;
> + if (enc->sei_a53cc_data != NULL) {
> + enc->sei_a53cc.itu_t_t35_country_code = 181;
> + enc->sei_a53cc.data = (uint8_t *)enc->sei_a53cc_data + 1;
> + enc->sei_a53cc.data_length = sei_a53cc_len - 1;
> +
> + hp->units_needed |= UNIT_SEI_A53_CC;
> + }
> + }
> +
> + return 0;
> +}
> +
> +static void setup_slices(AVCodecContext *avctx,
> + FFHWBaseEncodePicture *pic)
> +{
> + VulkanEncodeH264Context *enc = avctx->priv_data;
> + VulkanEncodeH264Picture *hp = pic->codec_priv;
> +
> + hp->slice_wt = (StdVideoEncodeH264WeightTable) {
> + .flags = (StdVideoEncodeH264WeightTableFlags) {
> + .luma_weight_l0_flag = 0,
> + .chroma_weight_l0_flag = 0,
> + .luma_weight_l1_flag = 0,
> + .chroma_weight_l1_flag = 0,
> + },
> + .luma_log2_weight_denom = 0,
> + .chroma_log2_weight_denom = 0,
> + .luma_weight_l0 = { 0 },
> + .luma_offset_l0 = { 0 },
> + .chroma_weight_l0 = { { 0 } },
> + .chroma_offset_l0 = { { 0 } },
> + .luma_weight_l1 = { 0 },
> + .luma_offset_l1 = { 0 },
> + .chroma_weight_l1 = { { 0 } },
> + .chroma_offset_l1 = { { 0 } },
> + };
> +
> + hp->slice_hdr = (StdVideoEncodeH264SliceHeader) {
> + .flags = (StdVideoEncodeH264SliceHeaderFlags) {
> + .direct_spatial_mv_pred_flag = 1,
> + /* The vk_samples code does this */
> + .num_ref_idx_active_override_flag =
> + ((enc->units.raw_pps.num_ref_idx_l0_default_active_minus1) &&
> + (pic->type == FF_HW_PICTURE_TYPE_B)) ? 1 : 0,
> + },
> + .first_mb_in_slice = 1,
> + .slice_type = hp->slice_type,
> + .slice_alpha_c0_offset_div2 = 0,
> + .slice_beta_offset_div2 = 0,
> + .slice_qp_delta = 0, /* Filled in below */
> + /* Reserved */
> + .cabac_init_idc = 0,
> + .disable_deblocking_filter_idc = 0,
> + .pWeightTable = NULL, // &hp->slice_wt,
> + };
> +
> + hp->vkslice = (VkVideoEncodeH264NaluSliceInfoKHR) {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_NALU_SLICE_INFO_KHR,
> + .pNext = NULL,
> + .constantQp = pic->type == FF_HW_PICTURE_TYPE_B ? enc->fixed_qp_b :
> + pic->type == FF_HW_PICTURE_TYPE_P ? enc->fixed_qp_p :
> + enc->fixed_qp_idr,
> + .pStdSliceHeader = &hp->slice_hdr,
> + };
> +
> + hp->slice_hdr.slice_qp_delta = hp->vkslice.constantQp -
> + (enc->units.raw_pps.pic_init_qp_minus26 + 26);
> +
> + if (enc->common.opts.rc_mode != VK_VIDEO_ENCODE_RATE_CONTROL_MODE_DISABLED_BIT_KHR)
> + hp->vkslice.constantQp = 0;
> +
> + hp->vkh264pic_info.pNaluSliceEntries = &hp->vkslice;
> + hp->vkh264pic_info.naluSliceEntryCount = 1;
> +}
> +
> +static void vk_enc_h264_default_ref_pic_list(AVCodecContext *avctx,
> + FFHWBaseEncodePicture *pic,
> + FFHWBaseEncodePicture **rpl0,
> + FFHWBaseEncodePicture **rpl1,
> + int *rpl_size)
> +{
> + FFHWBaseEncodePicture *prev;
> + VulkanEncodeH264Picture *hp, *hn, *hc;
> + int i, j, n = 0;
> +
> + prev = pic->prev;
> + av_assert0(prev);
> + hp = pic->codec_priv;
> +
> + for (i = 0; i < pic->prev->nb_dpb_pics; i++) {
> + hn = prev->dpb[i]->codec_priv;
> + av_assert0(hn->frame_num < hp->frame_num);
> +
> + if (pic->type == FF_HW_PICTURE_TYPE_P) {
> + for (j = n; j > 0; j--) {
> + hc = rpl0[j - 1]->codec_priv;
> + av_assert0(hc->frame_num != hn->frame_num);
> + if (hc->frame_num > hn->frame_num)
> + break;
> + rpl0[j] = rpl0[j - 1];
> + }
> + rpl0[j] = prev->dpb[i];
> +
> + } else if (pic->type == FF_HW_PICTURE_TYPE_B) {
> + for (j = n; j > 0; j--) {
> + hc = rpl0[j - 1]->codec_priv;
> + av_assert0(hc->pic_order_cnt != hp->pic_order_cnt);
> + if (hc->pic_order_cnt < hp->pic_order_cnt) {
> + if (hn->pic_order_cnt > hp->pic_order_cnt ||
> + hn->pic_order_cnt < hc->pic_order_cnt)
> + break;
> + } else {
> + if (hn->pic_order_cnt > hc->pic_order_cnt)
> + break;
> + }
> + rpl0[j] = rpl0[j - 1];
> + }
> + rpl0[j] = prev->dpb[i];
> +
> + for (j = n; j > 0; j--) {
> + hc = rpl1[j - 1]->codec_priv;
> + av_assert0(hc->pic_order_cnt != hp->pic_order_cnt);
> + if (hc->pic_order_cnt > hp->pic_order_cnt) {
> + if (hn->pic_order_cnt < hp->pic_order_cnt ||
> + hn->pic_order_cnt > hc->pic_order_cnt)
> + break;
> + } else {
> + if (hn->pic_order_cnt < hc->pic_order_cnt)
> + break;
> + }
> + rpl1[j] = rpl1[j - 1];
> + }
> + rpl1[j] = prev->dpb[i];
> + }
> +
> + ++n;
> + }
> +
> + if (pic->type == FF_HW_PICTURE_TYPE_B) {
> + for (i = 0; i < n; i++) {
> + if (rpl0[i] != rpl1[i])
> + break;
> + }
> + if (i == n)
> + FFSWAP(FFHWBaseEncodePicture *, rpl1[0], rpl1[1]);
> + }
> +
> + if (pic->type == FF_HW_PICTURE_TYPE_P ||
> + pic->type == FF_HW_PICTURE_TYPE_B) {
> + av_log(avctx, AV_LOG_DEBUG, "Default RefPicList0 for fn=%d/poc=%d:",
> + hp->frame_num, hp->pic_order_cnt);
> + for (i = 0; i < n; i++) {
> + hn = rpl0[i]->codec_priv;
> + av_log(avctx, AV_LOG_DEBUG, " fn=%d/poc=%d",
> + hn->frame_num, hn->pic_order_cnt);
> + }
> + av_log(avctx, AV_LOG_DEBUG, "\n");
> + }
> + if (pic->type == FF_HW_PICTURE_TYPE_B) {
> + av_log(avctx, AV_LOG_DEBUG, "Default RefPicList1 for fn=%d/poc=%d:",
> + hp->frame_num, hp->pic_order_cnt);
> + for (i = 0; i < n; i++) {
> + hn = rpl1[i]->codec_priv;
> + av_log(avctx, AV_LOG_DEBUG, " fn=%d/poc=%d",
> + hn->frame_num, hn->pic_order_cnt);
> + }
> + av_log(avctx, AV_LOG_DEBUG, "\n");
> + }
> +
> + *rpl_size = n;
> +}
> +
> +static void setup_refs(AVCodecContext *avctx,
> + FFHWBaseEncodePicture *pic,
> + VkVideoEncodeInfoKHR *encode_info)
> +{
> + int idx, n, i, j;
> + VulkanEncodeH264Context *enc = avctx->priv_data;
> + VulkanEncodeH264Picture *hp = pic->codec_priv;
> + FFHWBaseEncodePicture *prev = pic->prev;
> + FFHWBaseEncodePicture *def_l0[MAX_DPB_SIZE], *def_l1[MAX_DPB_SIZE];
> + VulkanEncodeH264Picture *href;
> +
> + hp->ref_list_info = (StdVideoEncodeH264ReferenceListsInfo) {
> + .flags = (StdVideoEncodeH264ReferenceListsInfoFlags) {
> + .ref_pic_list_modification_flag_l0 = 0,
> + .ref_pic_list_modification_flag_l1 = 0,
> + /* Reserved */
> + },
> + /* May be overridden during setup_slices() */
> + .num_ref_idx_l0_active_minus1 = pic->nb_refs[0] - 1,
> + .num_ref_idx_l1_active_minus1 = pic->nb_refs[1] - 1,
> + /* .RefPicList0 is set in vk_enc_h264_default_ref_pic_list() */
> + /* .RefPicList1 is set in vk_enc_h264_default_ref_pic_list() */
> + /* Reserved */
> + .pRefList0ModOperations = NULL, /* All set below */
> + .refList0ModOpCount = 0,
> + .pRefList1ModOperations = NULL,
> + .refList1ModOpCount = 0,
> + .pRefPicMarkingOperations = NULL,
> + .refPicMarkingOpCount = 0,
> + };
> +
> + for (i = 0; i < STD_VIDEO_H264_MAX_NUM_LIST_REF; i++)
> + hp->ref_list_info.RefPicList0[i] = hp->ref_list_info.RefPicList1[i] = -1;
> +
> + /* Note: really not sure */
> + for (int i = 0; i < pic->nb_refs[0]; i++) {
> + FFHWBaseEncodePicture *ref = pic->refs[0][i];
> + FFVulkanEncodePicture *rvp = ref->priv;
> + VkVideoReferenceSlotInfoKHR *slot_info;
> + slot_info = (VkVideoReferenceSlotInfoKHR *)&encode_info->pReferenceSlots[i];
> + hp->ref_list_info.RefPicList0[i] = slot_info->slotIndex;
> + }
> +
> + /* Note: really not sure */
> + for (int i = 0; i < pic->nb_refs[1]; i++) {
> + FFHWBaseEncodePicture *ref = pic->refs[1][i];
> + FFVulkanEncodePicture *rvp = ref->priv;
> + VkVideoReferenceSlotInfoKHR *slot_info;
> + slot_info = (VkVideoReferenceSlotInfoKHR *)&encode_info->pReferenceSlots[pic->nb_refs[0] + i];
> + hp->ref_list_info.RefPicList1[i] = slot_info->slotIndex;
> + }
> +
> + hp->h264pic_info.pRefLists = &hp->ref_list_info;
> +
> + if (pic->is_reference && pic->type != FF_HW_PICTURE_TYPE_IDR) {
> + FFHWBaseEncodePicture *discard_list[MAX_DPB_SIZE];
> + int discard = 0, keep = 0;
> +
> + // Discard everything which is in the DPB of the previous frame but
> + // not in the DPB of this one.
> + for (i = 0; i < prev->nb_dpb_pics; i++) {
> + for (j = 0; j < pic->nb_dpb_pics; j++) {
> + if (prev->dpb[i] == pic->dpb[j])
> + break;
> + }
> + if (j == pic->nb_dpb_pics) {
> + discard_list[discard] = prev->dpb[i];
> + ++discard;
> + } else {
> + ++keep;
> + }
> + }
> + av_assert0(keep <= enc->units.dpb_frames);
> +
> + if (discard == 0) {
> + hp->h264pic_info.flags.adaptive_ref_pic_marking_mode_flag = 0;
> + } else {
> + hp->h264pic_info.flags.adaptive_ref_pic_marking_mode_flag = 1;
> + for (i = 0; i < discard; i++) {
> + VulkanEncodeH264Picture *old = discard_list[i]->codec_priv;
> + av_assert0(old->frame_num < hp->frame_num);
> + hp->mmco[i] = (StdVideoEncodeH264RefPicMarkingEntry) {
> + .memory_management_control_operation = 1,
> + .difference_of_pic_nums_minus1 = hp->frame_num - old->frame_num - 1,
> + };
> + }
> + hp->ref_list_info.pRefPicMarkingOperations = hp->mmco;
> + hp->ref_list_info.refPicMarkingOpCount = i - 1;
> + }
> + }
> +
> + if (pic->type == FF_HW_PICTURE_TYPE_I || pic->type == FF_HW_PICTURE_TYPE_IDR)
> + return;
> +
> + // If the intended references are not the first entries of RefPicListN
> + // by default, use ref-pic-list-modification to move them there.
> + vk_enc_h264_default_ref_pic_list(avctx, pic,
> + def_l0, def_l1, &n);
> +
> + if (pic->type == FF_HW_PICTURE_TYPE_P) {
> + int need_rplm = 0;
> + for (i = 0; i < pic->nb_refs[0]; i++) {
> + av_assert0(pic->refs[0][i]);
> + if (pic->refs[0][i] != (FFHWBaseEncodePicture *)def_l0[i])
> + need_rplm = 1;
> + }
> +
> + hp->ref_list_info.flags.ref_pic_list_modification_flag_l0 = need_rplm;
> + if (need_rplm) {
> + int pic_num = hp->frame_num;
> + for (i = 0; i < pic->nb_refs[0]; i++) {
> + href = pic->refs[0][i]->codec_priv;
> + av_assert0(href->frame_num != pic_num);
> + if (href->frame_num < pic_num) {
> + hp->mods[0][i] = (StdVideoEncodeH264RefListModEntry) {
> + .modification_of_pic_nums_idc = 0,
> + .abs_diff_pic_num_minus1 = pic_num - href->frame_num - 1,
> + };
> + } else {
> + hp->mods[0][i] = (StdVideoEncodeH264RefListModEntry) {
> + .modification_of_pic_nums_idc = 1,
> + .abs_diff_pic_num_minus1 = href->frame_num - pic_num - 1,
> + };
> + }
> + pic_num = href->frame_num;
> + }
> + hp->ref_list_info.pRefList0ModOperations = hp->mods[0];
> + hp->ref_list_info.refList0ModOpCount = i - 1;
> + }
> + } else {
> + int need_rplm_l0 = 0, need_rplm_l1 = 0;
> + int n0 = 0, n1 = 0;
> + for (i = 0; i < pic->nb_refs[0]; i++) {
> + av_assert0(pic->refs[0][i]);
> + href = pic->refs[0][i]->codec_priv;
> + av_assert0(href->pic_order_cnt < hp->pic_order_cnt);
> + if (pic->refs[0][i] != (FFHWBaseEncodePicture *)def_l0[n0])
> + need_rplm_l0 = 1;
> + ++n0;
> + }
> +
> + for (int i = 0; i < pic->nb_refs[1]; i++) {
> + av_assert0(pic->refs[1][i]);
> + href = pic->refs[1][i]->codec_priv;
> + av_assert0(href->pic_order_cnt > hp->pic_order_cnt);
> + if (pic->refs[1][i] != (FFHWBaseEncodePicture *)def_l1[n1])
> + need_rplm_l1 = 1;
> + ++n1;
> + }
> +
> + hp->ref_list_info.flags.ref_pic_list_modification_flag_l0 = need_rplm_l0;
> + if (need_rplm_l0) {
> + int pic_num = hp->frame_num;
> + for (i = j = 0; i < pic->nb_refs[0]; i++) {
> + href = pic->refs[0][i]->codec_priv;
> + av_assert0(href->frame_num != pic_num);
> + if (href->frame_num < pic_num) {
> + hp->mods[0][j] = (StdVideoEncodeH264RefListModEntry) {
> + .modification_of_pic_nums_idc = 0,
> + .abs_diff_pic_num_minus1 = pic_num - href->frame_num - 1,
> + };
> + } else {
> + hp->mods[0][j] = (StdVideoEncodeH264RefListModEntry) {
> + .modification_of_pic_nums_idc = 1,
> + .abs_diff_pic_num_minus1 = href->frame_num - pic_num - 1,
> + };
> + }
> + pic_num = href->frame_num;
> + ++j;
> + }
> + hp->ref_list_info.pRefList0ModOperations = hp->mods[0];
> + hp->ref_list_info.refList0ModOpCount = j - 1;
> + }
> +
> + hp->ref_list_info.flags.ref_pic_list_modification_flag_l1 = need_rplm_l1;
> + if (need_rplm_l1) {
> + int pic_num = hp->frame_num;
> + for (i = j = 0; i < pic->nb_refs[1]; i++) {
> + href = pic->refs[1][i]->codec_priv;
> + av_assert0(href->frame_num != pic_num);
> + if (href->frame_num < pic_num) {
> + hp->mods[1][j] = (StdVideoEncodeH264RefListModEntry) {
> + .modification_of_pic_nums_idc = 0,
> + .abs_diff_pic_num_minus1 = pic_num - href->frame_num - 1,
> + };
> + } else {
> + hp->mods[1][j] = (StdVideoEncodeH264RefListModEntry) {
> + .modification_of_pic_nums_idc = 1,
> + .abs_diff_pic_num_minus1 = href->frame_num - pic_num - 1,
> + };
> + }
> + pic_num = href->frame_num;
> + ++j;
> + }
> + hp->ref_list_info.pRefList1ModOperations = hp->mods[1];
> + hp->ref_list_info.refList1ModOpCount = j - 1;
> + }
> + }
> +}
> +
> +static int init_pic_params(AVCodecContext *avctx, FFHWBaseEncodePicture *pic,
> + VkVideoEncodeInfoKHR *encode_info)
> +{
> + int err;
> + FFVulkanEncodePicture *vp = pic->priv;
> + VulkanEncodeH264Picture *hp = pic->codec_priv;
> + VkVideoReferenceSlotInfoKHR *ref_slot;
> +
> + err = vk_enc_h264_update_pic_info(avctx, pic);
> + if (err < 0)
> + return err;
> +
> + hp->vkh264pic_info = (VkVideoEncodeH264PictureInfoKHR) {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_PICTURE_INFO_KHR,
> + .pNext = NULL,
> + .pNaluSliceEntries = NULL, // Filled in during setup_slices()
> + .naluSliceEntryCount = 0, // Filled in during setup_slices()
> + .pStdPictureInfo = &hp->h264pic_info,
> + };
> +
> + hp->h264pic_info = (StdVideoEncodeH264PictureInfo) {
> + .flags = (StdVideoEncodeH264PictureInfoFlags) {
> + .IdrPicFlag = pic->type == FF_HW_PICTURE_TYPE_IDR,
> + .is_reference = pic->is_reference,
> + .no_output_of_prior_pics_flag = 0,
> + .long_term_reference_flag = 0,
> + .adaptive_ref_pic_marking_mode_flag = 0, // Filled in during setup_refs()
> + /* Reserved */
> + },
> + .seq_parameter_set_id = 0,
> + .pic_parameter_set_id = 0,
> + .idr_pic_id = hp->idr_pic_id,
> + .primary_pic_type = pic->type == FF_HW_PICTURE_TYPE_P ? STD_VIDEO_H264_PICTURE_TYPE_P :
> + pic->type == FF_HW_PICTURE_TYPE_B ? STD_VIDEO_H264_PICTURE_TYPE_B :
> + pic->type == FF_HW_PICTURE_TYPE_I ? STD_VIDEO_H264_PICTURE_TYPE_I :
> + STD_VIDEO_H264_PICTURE_TYPE_IDR,
> + .frame_num = hp->frame_num,
> + .PicOrderCnt = hp->pic_order_cnt,
> + .temporal_id = 0, /* ? */
> + /* Reserved */
> + .pRefLists = NULL, // Filled in during setup_refs
> + };
> + encode_info->pNext = &hp->vkh264pic_info;
> +
> + hp->h264dpb_info = (StdVideoEncodeH264ReferenceInfo) {
> + .flags = (StdVideoEncodeH264ReferenceInfoFlags) {
> + .used_for_long_term_reference = 0,
> + /* Reserved */
> + },
> + .primary_pic_type = hp->h264pic_info.primary_pic_type,
> + .FrameNum = hp->h264pic_info.frame_num,
> + .PicOrderCnt = hp->h264pic_info.PicOrderCnt,
> + .long_term_pic_num = 0,
> + .long_term_frame_idx = 0,
> + .temporal_id = hp->h264pic_info.temporal_id,
> + };
> + hp->vkh264dpb_info = (VkVideoEncodeH264DpbSlotInfoKHR) {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_DPB_SLOT_INFO_KHR,
> + .pStdReferenceInfo = &hp->h264dpb_info,
> + };
> +
> + vp->dpb_slot.pNext = &hp->vkh264dpb_info;
> +
> + ref_slot = (VkVideoReferenceSlotInfoKHR *)encode_info->pSetupReferenceSlot;
> + ref_slot->pNext = &hp->vkh264dpb_info;
> +
> + setup_refs(avctx, pic, encode_info);
> +
> + setup_slices(avctx, pic);
> +
> + return 0;
> +}
> +
> +static int init_profile(AVCodecContext *avctx,
> + VkVideoProfileInfoKHR *profile, void *pnext)
> +{
> + VkResult ret;
> + VulkanEncodeH264Context *enc = avctx->priv_data;
> + FFVulkanEncodeContext *ctx = &enc->common;
> + FFVulkanContext *s = &ctx->s;
> + FFVulkanFunctions *vk = &ctx->s.vkfn;
> + VkVideoEncodeH264CapabilitiesKHR h264_caps = {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_CAPABILITIES_KHR,
> + };
> + VkVideoEncodeCapabilitiesKHR enc_caps = {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_ENCODE_CAPABILITIES_KHR,
> + .pNext = &h264_caps,
> + };
> + VkVideoCapabilitiesKHR caps = {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_CAPABILITIES_KHR,
> + .pNext = &enc_caps,
> + };
> +
> + /* In order of preference */
> + int last_supported = AV_PROFILE_UNKNOWN;
> + static const int known_profiles[] = {
> + AV_PROFILE_H264_CONSTRAINED_BASELINE,
> + AV_PROFILE_H264_MAIN,
> + AV_PROFILE_H264_HIGH,
> + AV_PROFILE_H264_HIGH_10,
> + };
> +
> + enc->profile = (VkVideoEncodeH264ProfileInfoKHR) {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_PROFILE_INFO_KHR,
> + .pNext = pnext,
> + .stdProfileIdc = ff_vk_h264_profile_to_vk(avctx->profile),
> + };
> + profile->pNext = &enc->profile;
> +
> + /* User has explicitly specified a profile. */
> + if (avctx->profile != AV_PROFILE_UNKNOWN)
> + return 0;
> +
> + av_log(avctx, AV_LOG_DEBUG, "Supported profiles:\n");
> + for (int i = 0; i < FF_ARRAY_ELEMS(known_profiles); i++) {
> + enc->profile.stdProfileIdc = ff_vk_h264_profile_to_vk(known_profiles[i]);
> + ret = vk->GetPhysicalDeviceVideoCapabilitiesKHR(s->hwctx->phys_dev,
> + profile,
> + &caps);
> + if (ret == VK_SUCCESS) {
> + av_log(avctx, AV_LOG_DEBUG, " %s\n",
> + avcodec_profile_name(avctx->codec_id, known_profiles[i]));
> + last_supported = known_profiles[i];
> + }
> + }
> +
> + if (last_supported == AV_PROFILE_UNKNOWN) {
> + av_log(avctx, AV_LOG_ERROR, "No supported profiles for given format\n");
> + return AVERROR(ENOTSUP);
> + }
> +
> + enc->profile.stdProfileIdc = ff_vk_h264_profile_to_vk(last_supported);
> + av_log(avctx, AV_LOG_VERBOSE, "Using profile %s\n",
> + avcodec_profile_name(avctx->codec_id, last_supported));
> + avctx->profile = last_supported;
> +
> + return 0;
> +}
> +
> +static int init_enc_options(AVCodecContext *avctx)
> +{
> + VulkanEncodeH264Context *enc = avctx->priv_data;
> + FFHWBaseEncodeH264Opts *unit_opts = &enc->unit_opts;
> +
> + if (avctx->rc_buffer_size)
> + unit_opts->hrd_buffer_size = avctx->rc_buffer_size;
> + else if (avctx->rc_max_rate > 0)
> + unit_opts->hrd_buffer_size = avctx->rc_max_rate;
> + else
> + unit_opts->hrd_buffer_size = avctx->bit_rate;
> +
> + if (avctx->rc_initial_buffer_occupancy) {
> + if (avctx->rc_initial_buffer_occupancy > unit_opts->hrd_buffer_size) {
> + av_log(avctx, AV_LOG_ERROR, "Invalid RC buffer settings: "
> + "must have initial buffer size (%d) <= "
> + "buffer size (%"PRId64").\n",
> + avctx->rc_initial_buffer_occupancy, unit_opts->hrd_buffer_size);
> + return AVERROR(EINVAL);
> + }
> + unit_opts->initial_buffer_fullness = avctx->rc_initial_buffer_occupancy;
> + } else {
> + unit_opts->initial_buffer_fullness = unit_opts->hrd_buffer_size * 3 / 4;
> + }
> +
> + if (enc->common.opts.rc_mode == VK_VIDEO_ENCODE_RATE_CONTROL_MODE_DISABLED_BIT_KHR) {
> + enc->fixed_qp_p = av_clip(enc->common.opts.qp, 0, 51);
> + if (avctx->i_quant_factor > 0.0)
> + unit_opts->fixed_qp_idr = av_clip((avctx->i_quant_factor * enc->fixed_qp_p +
> + avctx->i_quant_offset) + 0.5, 0, 51);
> + else
> + unit_opts->fixed_qp_idr = enc->fixed_qp_p;
> +
> + if (avctx->b_quant_factor > 0.0)
> + enc->fixed_qp_b = av_clip((avctx->b_quant_factor * enc->fixed_qp_p +
> + avctx->b_quant_offset) + 0.5, 0, 51);
> + else
> + enc->fixed_qp_b = enc->fixed_qp_p;
> +
> + av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "
> + "%d / %d / %d for IDR- / P- / B-frames.\n",
> + unit_opts->fixed_qp_idr, enc->fixed_qp_p, enc->fixed_qp_b);
> + } else {
> + unit_opts->fixed_qp_idr = 26;
> + enc->fixed_qp_p = 26;
> + enc->fixed_qp_b = 26;
> + }
> +
> + return 0;
> +}
> +
> +static av_cold int init_sequence_headers(AVCodecContext *avctx)
> +{
> + int err;
> + VulkanEncodeH264Context *enc = avctx->priv_data;
> +
> + FFHWBaseEncodeH264 *units = &enc->units;
> + FFHWBaseEncodeH264Opts *unit_opts = &enc->unit_opts;
> +
> + unit_opts->bit_rate = avctx->bit_rate;
> + unit_opts->mb_width = FFALIGN(avctx->width, 16) / 16;
> + unit_opts->mb_height = FFALIGN(avctx->height, 16) / 16;
> + unit_opts->flags = enc->unit_elems & UNIT_SEI_TIMING ? FF_HW_H264_SEI_TIMING : 0;
> +
> + /* cabac already set via an option */
> + /* fixed_qp_idr initialized in init_enc_options() */
> + /* hrd_buffer_size initialized in init_enc_options() */
> + /* initial_buffer_fullness initialized in init_enc_options() */
> +
> + err = ff_hw_base_encode_init_params_h264(&enc->common.base, avctx,
> + units, unit_opts);
I got a division by zero (hrd_buffer_size = 0) inside
ff_hw_base_encode_init_params_h264 when I ran with:
ffmpeg -hwaccel vulkan -video_size 1920x1080 -i <yuv> -profile main -vf "format=nv12,hwupload" -c:v h264_vulkan test.h264
It gave a warning that a fixed QP of 18 would be used, and I assume HRD
parameters needn't be coded for constant QP cases?
> + if (err < 0)
> + return err;
> +
> + units->raw_sps.seq_scaling_matrix_present_flag =
> + !!(enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_SCALING_MATRIX_PRESENT_FLAG_SET_BIT_KHR);
> + units->raw_pps.pic_scaling_matrix_present_flag =
> + !!(enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_SCALING_MATRIX_PRESENT_FLAG_SET_BIT_KHR);
> + units->raw_pps.transform_8x8_mode_flag =
> + !!(enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_TRANSFORM_8X8_MODE_FLAG_SET_BIT_KHR);
> +
> + return 0;
> +}
> +
> +typedef struct VulkanH264Units {
> + StdVideoH264SequenceParameterSet vksps;
> + StdVideoH264ScalingLists vksps_scaling;
> + StdVideoH264HrdParameters vksps_vui_header;
> + StdVideoH264SequenceParameterSetVui vksps_vui;
> +
> + StdVideoH264PictureParameterSet vkpps;
> + StdVideoH264ScalingLists vkpps_scaling;
> +} VulkanH264Units;
> +
> +static av_cold int base_unit_to_vk(AVCodecContext *avctx,
> + VulkanH264Units *vk_units)
> +{
> + int err;
> + VulkanEncodeH264Context *enc = avctx->priv_data;
> + FFVulkanEncodeContext *ctx = &enc->common;
> + FFHWBaseEncodeContext *base_ctx = &ctx->base;
> +
> + FFHWBaseEncodeH264 *units = &enc->units;
> +
> + H264RawSPS *sps = &units->raw_sps;
> + H264RawHRD *hrd = &sps->vui.nal_hrd_parameters;
> + StdVideoH264ScalingLists *vksps_scaling = &vk_units->vksps_scaling;
> + StdVideoH264HrdParameters *vksps_vui_header = &vk_units->vksps_vui_header;
> + StdVideoH264SequenceParameterSetVui *vksps_vui = &vk_units->vksps_vui;
> + StdVideoH264SequenceParameterSet *vksps = &vk_units->vksps;
> +
> + H264RawPPS *pps = &units->raw_pps;
> + StdVideoH264ScalingLists *vkpps_scaling = &vk_units->vkpps_scaling;
> + StdVideoH264PictureParameterSet *vkpps = &vk_units->vkpps;
> +
> + *vksps_scaling = (StdVideoH264ScalingLists) {
> + .scaling_list_present_mask = 0x0, // mask
> + .use_default_scaling_matrix_mask = 1,
> + };
> +
> + *vksps_vui_header = (StdVideoH264HrdParameters) {
> + .cpb_cnt_minus1 = hrd->cpb_cnt_minus1,
> + .bit_rate_scale = hrd->bit_rate_scale,
> + .cpb_size_scale = hrd->cpb_size_scale,
> + /* Reserved */
> + /* bit_rate/cpb_size/cbr_flag set below */
> + .initial_cpb_removal_delay_length_minus1 = hrd->initial_cpb_removal_delay_length_minus1,
> + .cpb_removal_delay_length_minus1 = hrd->cpb_removal_delay_length_minus1,
> + .dpb_output_delay_length_minus1 = hrd->dpb_output_delay_length_minus1,
> + .time_offset_length = hrd->time_offset_length,
> + };
> +
> + for (int i = 0; i < H264_MAX_CPB_CNT; i++) {
> + vksps_vui_header->bit_rate_value_minus1[i] = hrd->bit_rate_value_minus1[i];
> + vksps_vui_header->cpb_size_value_minus1[i] = hrd->cpb_size_value_minus1[i];
> + vksps_vui_header->cbr_flag[i] = hrd->cbr_flag[i];
> + }
> +
> + *vksps_vui = (StdVideoH264SequenceParameterSetVui) {
> + .flags = (StdVideoH264SpsVuiFlags) {
> + .aspect_ratio_info_present_flag = sps->vui.aspect_ratio_info_present_flag,
> + .overscan_info_present_flag = sps->vui.overscan_info_present_flag,
> + .overscan_appropriate_flag = sps->vui.overscan_appropriate_flag,
> + .video_signal_type_present_flag = sps->vui.video_signal_type_present_flag,
> + .video_full_range_flag = sps->vui.video_full_range_flag,
> + .color_description_present_flag = sps->vui.colour_description_present_flag,
> + .chroma_loc_info_present_flag = sps->vui.chroma_loc_info_present_flag,
> + .timing_info_present_flag = sps->vui.timing_info_present_flag,
> + .fixed_frame_rate_flag = sps->vui.fixed_frame_rate_flag,
> + .bitstream_restriction_flag = sps->vui.bitstream_restriction_flag,
> + .nal_hrd_parameters_present_flag = sps->vui.nal_hrd_parameters_present_flag,
> + .vcl_hrd_parameters_present_flag = sps->vui.vcl_hrd_parameters_present_flag,
> + },
> + .aspect_ratio_idc = sps->vui.aspect_ratio_idc,
> + .sar_width = sps->vui.sar_width,
> + .sar_height = sps->vui.sar_height,
> + .video_format = sps->vui.video_format,
> + .colour_primaries = sps->vui.colour_primaries,
> + .transfer_characteristics = sps->vui.transfer_characteristics,
> + .matrix_coefficients = sps->vui.matrix_coefficients,
> + .num_units_in_tick = sps->vui.num_units_in_tick,
> + .time_scale = sps->vui.time_scale,
> + .max_num_reorder_frames = sps->vui.max_num_reorder_frames,
> + .max_dec_frame_buffering = sps->vui.max_dec_frame_buffering,
> + .chroma_sample_loc_type_top_field = sps->vui.chroma_sample_loc_type_top_field,
> + .chroma_sample_loc_type_bottom_field = sps->vui.chroma_sample_loc_type_bottom_field,
> + /* Reserved */
> + .pHrdParameters = vksps_vui_header,
> + };
> +
> + *vksps = (StdVideoH264SequenceParameterSet) {
> + .flags = (StdVideoH264SpsFlags) {
> + .constraint_set0_flag = sps->constraint_set0_flag,
> + .constraint_set1_flag = sps->constraint_set1_flag,
> + .constraint_set2_flag = sps->constraint_set2_flag,
> + .constraint_set3_flag = sps->constraint_set3_flag,
> + .constraint_set4_flag = sps->constraint_set4_flag,
> + .constraint_set5_flag = sps->constraint_set5_flag,
> + .direct_8x8_inference_flag = sps->direct_8x8_inference_flag,
> + .mb_adaptive_frame_field_flag = sps->mb_adaptive_frame_field_flag,
> + .frame_mbs_only_flag = sps->frame_mbs_only_flag,
> + .delta_pic_order_always_zero_flag = sps->delta_pic_order_always_zero_flag,
> + .separate_colour_plane_flag = sps->separate_colour_plane_flag,
> + .gaps_in_frame_num_value_allowed_flag = sps->gaps_in_frame_num_allowed_flag,
> + .qpprime_y_zero_transform_bypass_flag = sps->qpprime_y_zero_transform_bypass_flag,
> + .frame_cropping_flag = sps->frame_cropping_flag,
> + .seq_scaling_matrix_present_flag = sps->seq_scaling_matrix_present_flag,
> + .vui_parameters_present_flag = sps->vui_parameters_present_flag,
> + },
> + .profile_idc = ff_vk_h264_profile_to_vk(sps->profile_idc),
> + .level_idc = ff_vk_h264_level_to_vk(sps->level_idc),
> + .chroma_format_idc = sps->chroma_format_idc,
> + .seq_parameter_set_id = sps->seq_parameter_set_id,
> + .bit_depth_luma_minus8 = sps->bit_depth_luma_minus8,
> + .bit_depth_chroma_minus8 = sps->bit_depth_chroma_minus8,
> + .log2_max_frame_num_minus4 = sps->log2_max_frame_num_minus4,
> + .pic_order_cnt_type = sps->pic_order_cnt_type,
> + .offset_for_non_ref_pic = sps->offset_for_non_ref_pic,
> + .offset_for_top_to_bottom_field = sps->offset_for_top_to_bottom_field,
> + .log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_pic_order_cnt_lsb_minus4,
> + .num_ref_frames_in_pic_order_cnt_cycle = sps->num_ref_frames_in_pic_order_cnt_cycle,
> + .max_num_ref_frames = sps->max_num_ref_frames,
> + /* Reserved */
> + .pic_width_in_mbs_minus1 = sps->pic_width_in_mbs_minus1,
> + .pic_height_in_map_units_minus1 = sps->pic_height_in_map_units_minus1,
> + .frame_crop_left_offset = sps->frame_crop_left_offset,
> + .frame_crop_right_offset = sps->frame_crop_right_offset,
> + .frame_crop_top_offset = sps->frame_crop_top_offset,
> + .frame_crop_bottom_offset = sps->frame_crop_bottom_offset,
> + /* Reserved */
> + .pOffsetForRefFrame = sps->offset_for_ref_frame,
> + .pScalingLists = vksps_scaling,
> + .pSequenceParameterSetVui = vksps_vui,
> + };
> +
> + *vkpps_scaling = (StdVideoH264ScalingLists) {
> + .scaling_list_present_mask = 0x0, // mask
> + .use_default_scaling_matrix_mask = 1,
> + };
> +
> + *vkpps = (StdVideoH264PictureParameterSet) {
> + .flags = (StdVideoH264PpsFlags) {
> + .transform_8x8_mode_flag = pps->transform_8x8_mode_flag,
> + .redundant_pic_cnt_present_flag = pps->redundant_pic_cnt_present_flag,
> + .constrained_intra_pred_flag = pps->constrained_intra_pred_flag,
> + .deblocking_filter_control_present_flag = pps->deblocking_filter_control_present_flag,
> + .weighted_pred_flag = pps->weighted_pred_flag,
> + .bottom_field_pic_order_in_frame_present_flag = pps->bottom_field_pic_order_in_frame_present_flag,
> + .entropy_coding_mode_flag = pps->entropy_coding_mode_flag,
> + .pic_scaling_matrix_present_flag = pps->pic_scaling_matrix_present_flag,
> + },
> + .seq_parameter_set_id = pps->seq_parameter_set_id,
> + .pic_parameter_set_id = pps->pic_parameter_set_id,
> + .num_ref_idx_l0_default_active_minus1 = pps->num_ref_idx_l0_default_active_minus1,
> + .num_ref_idx_l1_default_active_minus1 = pps->num_ref_idx_l1_default_active_minus1,
> + .weighted_bipred_idc = pps->weighted_bipred_idc,
> + .pic_init_qp_minus26 = pps->pic_init_qp_minus26,
> + .pic_init_qs_minus26 = pps->pic_init_qs_minus26,
> + .chroma_qp_index_offset = pps->chroma_qp_index_offset,
> + .second_chroma_qp_index_offset = pps->second_chroma_qp_index_offset,
> + .pScalingLists = vkpps_scaling,
> + };
> +
> + return 0;
> +}
> +
> +static int create_session_params(AVCodecContext *avctx)
> +{
> + int err;
> + VkResult ret;
> + VulkanEncodeH264Context *enc = avctx->priv_data;
> + FFVulkanEncodeContext *ctx = &enc->common;
> + FFVulkanContext *s = &ctx->s;
> + FFVulkanFunctions *vk = &ctx->s.vkfn;
> +
> + VulkanH264Units vk_units = { 0 };
> +
> + VkVideoEncodeH264SessionParametersAddInfoKHR h264_params_info;
> + VkVideoEncodeH264SessionParametersCreateInfoKHR h264_params;
> + VkVideoSessionParametersCreateInfoKHR session_params_create;
> +
> + /* Convert it to Vulkan */
> + err = base_unit_to_vk(avctx, &vk_units);
> + if (err < 0) {
> + av_log(avctx, AV_LOG_ERROR, "Unable to convert SPS/PPS units to Vulkan: %s\n",
> + av_err2str(err));
> + return err;
> + }
> +
> + /* Destroy the session params */
> + if (ctx->session_params)
> + vk->DestroyVideoSessionParametersKHR(s->hwctx->act_dev,
> + ctx->session_params,
> + s->hwctx->alloc);
> +
> + h264_params_info = (VkVideoEncodeH264SessionParametersAddInfoKHR) {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_SESSION_PARAMETERS_ADD_INFO_KHR,
> + .pStdSPSs = &vk_units.vksps,
> + .stdSPSCount = 1,
> + .pStdPPSs = &vk_units.vkpps,
> + .stdPPSCount = 1,
> + };
> + h264_params = (VkVideoEncodeH264SessionParametersCreateInfoKHR) {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_SESSION_PARAMETERS_CREATE_INFO_KHR,
> + .maxStdSPSCount = 1,
> + .maxStdPPSCount = 1,
> + .pParametersAddInfo = &h264_params_info,
> + };
> + session_params_create = (VkVideoSessionParametersCreateInfoKHR) {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_SESSION_PARAMETERS_CREATE_INFO_KHR,
> + .pNext = &h264_params,
> + .videoSession = ctx->common.session,
> + .videoSessionParametersTemplate = NULL,
> + };
> +
> + /* Create session parameters */
> + ret = vk->CreateVideoSessionParametersKHR(s->hwctx->act_dev, &session_params_create,
> + s->hwctx->alloc, &ctx->session_params);
> + if (ret != VK_SUCCESS) {
> + av_log(avctx, AV_LOG_ERROR, "Unable to create Vulkan video session parameters: %s!\n",
> + ff_vk_ret2str(ret));
> + return AVERROR_EXTERNAL;
> + }
> +
> + return 0;
> +}
> +
> +static int parse_feedback_units(AVCodecContext *avctx,
> + const uint8_t *data, size_t size,
> + int sps_override, int pps_override)
> +{
> + int err;
> + VulkanEncodeH264Context *enc = avctx->priv_data;
> +
> + CodedBitstreamContext *cbs;
> + CodedBitstreamFragment au = { 0 };
> +
> + err = ff_cbs_init(&cbs, AV_CODEC_ID_H264, avctx);
> + if (err < 0)
> + return err;
> +
> + err = ff_cbs_read(cbs, &au, data, size);
> + if (err < 0) {
> + av_log(avctx, AV_LOG_ERROR, "Unable to parse feedback units, bad drivers: %s\n",
> + av_err2str(err));
> + return err;
> + }
> +
> + /* If PPS has an override, just copy it entirely. */
> + if (pps_override) {
> + for (int i = 0; i < au.nb_units; i++) {
> + if (au.units[i].type == H264_NAL_PPS) {
> + H264RawPPS *pps = au.units[i].content;
> + memcpy(&enc->units.raw_pps, pps, sizeof(*pps));
> + break;
> + }
> + }
> + }
> +
> + ff_cbs_fragment_free(&au);
> + ff_cbs_close(&cbs);
> +
> + return 0;
> +}
> +
> +static int init_base_units(AVCodecContext *avctx)
> +{
> + int err;
> + VkResult ret;
> + VulkanEncodeH264Context *enc = avctx->priv_data;
> + FFVulkanEncodeContext *ctx = &enc->common;
> + FFVulkanContext *s = &ctx->s;
> + FFVulkanFunctions *vk = &ctx->s.vkfn;
> +
> + VkVideoEncodeH264SessionParametersGetInfoKHR h264_params_info;
> + VkVideoEncodeSessionParametersGetInfoKHR params_info;
> + VkVideoEncodeH264SessionParametersFeedbackInfoKHR h264_params_feedback;
> + VkVideoEncodeSessionParametersFeedbackInfoKHR params_feedback;
> +
> + void *data = NULL;
> + size_t data_size = 0;
> +
> + /* Generate SPS/PPS unit info */
> + err = init_sequence_headers(avctx);
> + if (err < 0) {
> + av_log(avctx, AV_LOG_ERROR, "Unable to initialize SPS/PPS units: %s\n",
> + av_err2str(err));
> + return err;
> + }
> +
> + /* Create session parameters from them */
> + err = create_session_params(avctx);
> + if (err < 0)
> + return err;
> +
> + h264_params_info = (VkVideoEncodeH264SessionParametersGetInfoKHR) {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_SESSION_PARAMETERS_GET_INFO_KHR,
> + .writeStdSPS = 1,
> + .writeStdPPS = 1,
> + .stdSPSId = enc->units.raw_sps.seq_parameter_set_id,
> + .stdPPSId = enc->units.raw_pps.pic_parameter_set_id,
> + };
> + params_info = (VkVideoEncodeSessionParametersGetInfoKHR) {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_ENCODE_SESSION_PARAMETERS_GET_INFO_KHR,
> + .pNext = &h264_params_info,
> + .videoSessionParameters = ctx->session_params,
> + };
> +
> + h264_params_feedback = (VkVideoEncodeH264SessionParametersFeedbackInfoKHR) {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_SESSION_PARAMETERS_FEEDBACK_INFO_KHR,
> + };
> + params_feedback = (VkVideoEncodeSessionParametersFeedbackInfoKHR) {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_ENCODE_SESSION_PARAMETERS_FEEDBACK_INFO_KHR,
> + .pNext = &h264_params_feedback,
> + };
> +
> + ret = vk->GetEncodedVideoSessionParametersKHR(s->hwctx->act_dev, ¶ms_info,
> + ¶ms_feedback,
> + &data_size, data);
> + if (ret == VK_INCOMPLETE ||
> + (ret == VK_SUCCESS) && (data_size > 0)) {
> + data = av_mallocz(data_size);
> + if (!data)
> + return AVERROR(ENOMEM);
> + } else {
> + av_log(avctx, AV_LOG_ERROR, "Unable to get feedback for H.264 units = %lu\n", data_size);
> + return err;
> + }
> +
> + ret = vk->GetEncodedVideoSessionParametersKHR(s->hwctx->act_dev, ¶ms_info,
> + ¶ms_feedback,
> + &data_size, data);
> + if (ret != VK_SUCCESS) {
> + av_log(avctx, AV_LOG_ERROR, "Error writing feedback units\n");
> + return err;
> + }
> +
> + av_log(avctx, AV_LOG_VERBOSE, "Feedback units written, overrides: %i (SPS: %i PPS: %i)\n",
> + params_feedback.hasOverrides,
> + h264_params_feedback.hasStdSPSOverrides,
> + h264_params_feedback.hasStdPPSOverrides);
> +
> + params_feedback.hasOverrides = 1;
> + h264_params_feedback.hasStdPPSOverrides = 1;
> +
> + /* No need to sync any overrides */
> + if (!params_feedback.hasOverrides)
> + return 0;
> +
> + /* Parse back tne units and override */
> + err = parse_feedback_units(avctx, data, data_size,
> + h264_params_feedback.hasStdSPSOverrides,
> + h264_params_feedback.hasStdPPSOverrides);
> + if (err < 0)
> + return err;
> +
> + /* Create final session parameters */
> + err = create_session_params(avctx);
> + if (err < 0)
> + return err;
> +
> + return 0;
> +}
> +
> +static int vulkan_encode_h264_add_nal(AVCodecContext *avctx,
> + CodedBitstreamFragment *au,
> + void *nal_unit)
> +{
> + H264RawNALUnitHeader *header = nal_unit;
> +
> + int err = ff_cbs_insert_unit_content(au, -1,
> + header->nal_unit_type, nal_unit, NULL);
> + if (err < 0)
> + av_log(avctx, AV_LOG_ERROR, "Failed to add NAL unit: "
> + "type = %d.\n", header->nal_unit_type);
> +
> + return err;
> +}
> +
> +static int write_access_unit(AVCodecContext *avctx,
> + uint8_t *data, size_t *data_len,
> + CodedBitstreamFragment *au)
> +{
> + VulkanEncodeH264Context *enc = avctx->priv_data;
> +
> + int err = ff_cbs_write_fragment_data(enc->cbs, au);
> + if (err < 0) {
> + av_log(avctx, AV_LOG_ERROR, "Failed to write packed header.\n");
> + return err;
> + }
> +
> + if (*data_len < au->data_size) {
> + av_log(avctx, AV_LOG_ERROR, "Access unit too large: %zu < %zu.\n",
> + *data_len, au->data_size);
> + return AVERROR(ENOSPC);
> + }
> +
> + memcpy(data, au->data, au->data_size);
> + *data_len = au->data_size;
> +
> + return 0;
> +}
> +
> +static int write_sequence_header(AVCodecContext *avctx,
> + FFHWBaseEncodePicture *base_pic,
> + uint8_t *data, size_t *data_len)
> +{
> + int err;
> + VulkanEncodeH264Context *enc = avctx->priv_data;
> + VulkanEncodeH264Picture *hp = base_pic ? base_pic->codec_priv : NULL;
> + CodedBitstreamFragment *au = &enc->current_access_unit;
> +
> + if (hp && hp->units_needed & UNIT_AUD) {
> + err = vulkan_encode_h264_add_nal(avctx, au, &enc->raw_aud);
> + if (err < 0)
> + goto fail;
> + hp->units_needed &= ~UNIT_AUD;
> + }
> +
> + err = vulkan_encode_h264_add_nal(avctx, au, &enc->units.raw_sps);
> + if (err < 0)
> + goto fail;
> +
> + err = vulkan_encode_h264_add_nal(avctx, au, &enc->units.raw_pps);
> + if (err < 0)
> + goto fail;
> +
> + err = write_access_unit(avctx, data, data_len, au);
> +fail:
> + ff_cbs_fragment_reset(au);
> + return err;
> +}
> +
> +static int write_extra_headers(AVCodecContext *avctx,
> + FFHWBaseEncodePicture *base_pic,
> + uint8_t *data, size_t *data_len)
> +{
> + int err;
> + VulkanEncodeH264Context *enc = avctx->priv_data;
> + VulkanEncodeH264Picture *hp = base_pic->codec_priv;
> + CodedBitstreamFragment *au = &enc->current_access_unit;
> +
> + if (hp->units_needed & UNIT_AUD) {
> + err = vulkan_encode_h264_add_nal(avctx, au, &enc->raw_aud);
> + if (err < 0)
> + goto fail;
> + hp->units_needed &= ~UNIT_AUD;
> + }
> +
> + if (hp->units_needed & UNIT_SEI_IDENTIFIER) {
> + err = ff_cbs_sei_add_message(enc->cbs, au, 1,
> + SEI_TYPE_USER_DATA_UNREGISTERED,
> + &enc->sei_identifier, NULL);
> + if (err < 0)
> + goto fail;
> + }
> +
> + if (hp->units_needed & UNIT_SEI_TIMING) {
> + if (base_pic->type == FF_HW_PICTURE_TYPE_IDR) {
> + err = ff_cbs_sei_add_message(enc->cbs, au, 1,
> + SEI_TYPE_BUFFERING_PERIOD,
> + &enc->units.sei_buffering_period, NULL);
> + if (err < 0)
> + goto fail;
> + }
> + err = ff_cbs_sei_add_message(enc->cbs, au, 1,
> + SEI_TYPE_PIC_TIMING,
> + &enc->sei_pic_timing, NULL);
> + if (err < 0)
> + goto fail;
> + }
> +
> + if (hp->units_needed & UNIT_SEI_RECOVERY) {
> + err = ff_cbs_sei_add_message(enc->cbs, au, 1,
> + SEI_TYPE_RECOVERY_POINT,
> + &enc->sei_recovery_point, NULL);
> + if (err < 0)
> + goto fail;
> + }
> +
> + if (hp->units_needed & UNIT_SEI_A53_CC) {
> + err = ff_cbs_sei_add_message(enc->cbs, au, 1,
> + SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35,
> + &enc->sei_a53cc, NULL);
> + if (err < 0)
> + goto fail;
> + }
> +
> + if (hp->units_needed) {
> + err = write_access_unit(avctx, data, data_len, au);
> + if (err < 0)
> + goto fail;
> + }
> +
> +fail:
> + ff_cbs_fragment_reset(au);
> + return err;
> +}
> +
> +static int write_filler(AVCodecContext *avctx, uint32_t filler,
> + uint8_t *data, size_t *data_len)
> +{
> + int err;
> + VulkanEncodeH264Context *enc = avctx->priv_data;
> + CodedBitstreamFragment *au = &enc->current_access_unit;
> +
> + H264RawFiller raw_filler = {
> + .nal_unit_header = {
> + .nal_unit_type = H264_NAL_FILLER_DATA,
> + },
> + .filler_size = filler,
> + };
> +
> + err = vulkan_encode_h264_add_nal(avctx, au, &raw_filler);
> + if (err < 0)
> + goto fail;
> +
> + err = write_access_unit(avctx, data, data_len, au);
> +fail:
> + ff_cbs_fragment_reset(au);
> + return err;
> +}
> +
> +static const FFVulkanCodec enc_cb = {
> + .flags = FF_HW_FLAG_B_PICTURES |
> + FF_HW_FLAG_B_PICTURE_REFERENCES |
> + FF_HW_FLAG_NON_IDR_KEY_PICTURES |
> + FF_HW_FLAG_SLICE_CONTROL,
> + .picture_priv_data_size = sizeof(VulkanEncodeH264Picture),
> + .filler_header_size = 6,
> + .init_profile = init_profile,
> + .init_pic_rc = init_pic_rc,
> + .init_pic_params = init_pic_params,
> + .write_sequence_headers = write_sequence_header,
> + .write_extra_headers = write_extra_headers,
> + .write_filler = write_filler,
> +};
> +
> +static av_cold int vulkan_encode_h264_init(AVCodecContext *avctx)
> +{
> + int err, ref_l0, ref_l1;
> + VulkanEncodeH264Context *enc = avctx->priv_data;
> + FFVulkanEncodeContext *ctx = &enc->common;
> + FFVulkanContext *s = &ctx->s;
> + FFHWBaseEncodeContext *base_ctx = &ctx->base;
> + int flags;
> +
> + if (avctx->profile == AV_PROFILE_UNKNOWN)
> + avctx->profile = enc->common.opts.profile;
> +
> + enc->caps = (VkVideoEncodeH264CapabilitiesKHR) {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_CAPABILITIES_KHR,
> + };
> +
> + enc->quality_props = (VkVideoEncodeH264QualityLevelPropertiesKHR) {
> + .sType = VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_QUALITY_LEVEL_PROPERTIES_KHR,
> + };
> +
> + err = ff_vulkan_encode_init(avctx, &enc->common,
> + &ff_vk_enc_h264_desc, &enc_cb,
> + &enc->caps, &enc->quality_props);
> + if (err < 0)
> + return err;
> +
> + av_log(avctx, AV_LOG_VERBOSE, "H264 encoder capabilities:\n");
> + av_log(avctx, AV_LOG_VERBOSE, " Standard capability flags:\n");
> + av_log(avctx, AV_LOG_VERBOSE, " separate_color_plane: %i\n",
> + !!(enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_SEPARATE_COLOR_PLANE_FLAG_SET_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " qprime_y_zero_transform_bypass: %i\n",
> + !!(enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_QPPRIME_Y_ZERO_TRANSFORM_BYPASS_FLAG_SET_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " scaling_lists: %i\n",
> + !!(enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_SCALING_MATRIX_PRESENT_FLAG_SET_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " chroma_qp_index_offset: %i\n",
> + !!(enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_CHROMA_QP_INDEX_OFFSET_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " second_chroma_qp_index_offset: %i\n",
> + !!(enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_SECOND_CHROMA_QP_INDEX_OFFSET_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " pic_init_qp: %i\n",
> + !!(enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_PIC_INIT_QP_MINUS26_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " weighted:%s%s%s\n",
> + enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_WEIGHTED_PRED_FLAG_SET_BIT_KHR ?
> + " pred" : "",
> + enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_WEIGHTED_BIPRED_IDC_EXPLICIT_BIT_KHR ?
> + " bipred_explicit" : "",
> + enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_WEIGHTED_BIPRED_IDC_IMPLICIT_BIT_KHR ?
> + " bipred_implicit" : "");
> + av_log(avctx, AV_LOG_VERBOSE, " 8x8_transforms: %i\n",
> + !!(enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_TRANSFORM_8X8_MODE_FLAG_SET_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " disable_direct_spatial_mv_pred: %i\n",
> + !!(enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_DIRECT_SPATIAL_MV_PRED_FLAG_UNSET_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " coder:%s%s\n",
> + enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_ENTROPY_CODING_MODE_FLAG_UNSET_BIT_KHR ?
> + " cabac" : "",
> + enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_ENTROPY_CODING_MODE_FLAG_SET_BIT_KHR ?
> + " cavlc" : "");
> + av_log(avctx, AV_LOG_VERBOSE, " direct_8x8_inference: %i\n",
> + !!(enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_DIRECT_8X8_INFERENCE_FLAG_UNSET_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " constrained_intra_pred: %i\n",
> + !!(enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_CONSTRAINED_INTRA_PRED_FLAG_SET_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " deblock:%s%s%s\n",
> + enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_DEBLOCKING_FILTER_DISABLED_BIT_KHR ?
> + " filter_disabling" : "",
> + enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_DEBLOCKING_FILTER_ENABLED_BIT_KHR ?
> + " filter_enabling" : "",
> + enc->caps.stdSyntaxFlags & VK_VIDEO_ENCODE_H264_STD_DEBLOCKING_FILTER_PARTIAL_BIT_KHR ?
> + " filter_partial" : "");
> +
> + av_log(avctx, AV_LOG_VERBOSE, " Capability flags:\n");
> + av_log(avctx, AV_LOG_VERBOSE, " hdr_compliance: %i\n",
> + !!(enc->caps.flags & VK_VIDEO_ENCODE_H264_CAPABILITY_HRD_COMPLIANCE_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " pred_weight_table_generated: %i\n",
> + !!(enc->caps.flags & VK_VIDEO_ENCODE_H264_CAPABILITY_PREDICTION_WEIGHT_TABLE_GENERATED_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " row_unaligned_slice: %i\n",
> + !!(enc->caps.flags & VK_VIDEO_ENCODE_H264_CAPABILITY_ROW_UNALIGNED_SLICE_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " different_slice_type: %i\n",
> + !!(enc->caps.flags & VK_VIDEO_ENCODE_H264_CAPABILITY_DIFFERENT_SLICE_TYPE_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " b_frame_in_l0_list: %i\n",
> + !!(enc->caps.flags & VK_VIDEO_ENCODE_H264_CAPABILITY_B_FRAME_IN_L0_LIST_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " b_frame_in_l1_list: %i\n",
> + !!(enc->caps.flags & VK_VIDEO_ENCODE_H264_CAPABILITY_B_FRAME_IN_L1_LIST_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " per_pict_type_min_max_qp: %i\n",
> + !!(enc->caps.flags & VK_VIDEO_ENCODE_H264_CAPABILITY_PER_PICTURE_TYPE_MIN_MAX_QP_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " per_slice_constant_qp: %i\n",
> + !!(enc->caps.flags & VK_VIDEO_ENCODE_H264_CAPABILITY_PER_SLICE_CONSTANT_QP_BIT_KHR));
> + av_log(avctx, AV_LOG_VERBOSE, " generate_prefix_nalu: %i\n",
> + !!(enc->caps.flags & VK_VIDEO_ENCODE_H264_CAPABILITY_GENERATE_PREFIX_NALU_BIT_KHR));
> +
> + av_log(avctx, AV_LOG_VERBOSE, " Capabilities:\n");
> + av_log(avctx, AV_LOG_VERBOSE, " maxLevelIdc: %i\n",
> + enc->caps.maxLevelIdc);
> + av_log(avctx, AV_LOG_VERBOSE, " maxSliceCount: %i\n",
> + enc->caps.maxSliceCount);
> + av_log(avctx, AV_LOG_VERBOSE, " max(P/B)PictureL0ReferenceCount: %i P's; %i B's\n",
> + enc->caps.maxPPictureL0ReferenceCount,
> + enc->caps.maxBPictureL0ReferenceCount);
> + av_log(avctx, AV_LOG_VERBOSE, " maxL1ReferenceCount: %i\n",
> + enc->caps.maxL1ReferenceCount);
> + av_log(avctx, AV_LOG_VERBOSE, " maxTemporalLayerCount: %i\n",
> + enc->caps.maxTemporalLayerCount);
> + av_log(avctx, AV_LOG_VERBOSE, " expectDyadicTemporalLayerPattern: %i\n",
> + enc->caps.expectDyadicTemporalLayerPattern);
> + av_log(avctx, AV_LOG_VERBOSE, " min/max Qp: [%i, %i]\n",
> + enc->caps.maxQp, enc->caps.minQp);
> + av_log(avctx, AV_LOG_VERBOSE, " prefersGopRemainingFrames: %i\n",
> + enc->caps.prefersGopRemainingFrames);
> + av_log(avctx, AV_LOG_VERBOSE, " requiresGopRemainingFrames: %i\n",
> + enc->caps.requiresGopRemainingFrames);
> +
> + err = init_enc_options(avctx);
> + if (err < 0)
> + return err;
> +
> + flags = ctx->codec->flags;
> + if (!enc->caps.maxPPictureL0ReferenceCount &&
> + !enc->caps.maxBPictureL0ReferenceCount &&
> + !enc->caps.maxL1ReferenceCount) {
> + /* Intra-only */
> + flags |= FF_HW_FLAG_INTRA_ONLY;
> + ref_l0 = ref_l1 = 0;
> + } else if (!enc->caps.maxPPictureL0ReferenceCount) {
> + /* No P-frames? How. */
> + base_ctx->p_to_gpb = 1;
> + ref_l0 = enc->caps.maxBPictureL0ReferenceCount;
> + ref_l1 = enc->caps.maxL1ReferenceCount;
> + } else if (!enc->caps.maxBPictureL0ReferenceCount &&
> + !enc->caps.maxL1ReferenceCount) {
> + /* No B-frames */
> + flags &= ~(FF_HW_FLAG_B_PICTURES | FF_HW_FLAG_B_PICTURE_REFERENCES);
> + ref_l0 = enc->caps.maxPPictureL0ReferenceCount;
> + ref_l1 = 0;
> + } else {
> + /* P and B frames */
> + ref_l0 = FFMIN(enc->caps.maxPPictureL0ReferenceCount,
> + enc->caps.maxBPictureL0ReferenceCount);
> + ref_l1 = enc->caps.maxL1ReferenceCount;
> + }
> +
> + err = ff_hw_base_init_gop_structure(base_ctx, avctx, ref_l0, ref_l1,
> + flags, 0);
> + if (err < 0)
> + return err;
> +
> + base_ctx->output_delay = base_ctx->b_per_p;
> + base_ctx->decode_delay = base_ctx->max_b_depth;
> +
> + /* Create units and session parameters */
> + err = init_base_units(avctx);
> + if (err < 0)
> + return err;
> +
> + /* Prepare SEI */
> + if (enc->unit_elems & UNIT_SEI_IDENTIFIER) {
> + int len;
> +
> + memcpy(enc->sei_identifier.uuid_iso_iec_11578,
> + vulkan_encode_h264_sei_identifier_uuid,
> + sizeof(enc->sei_identifier.uuid_iso_iec_11578));
> +
> + len = snprintf(NULL, 0,
> + "%s / Vulkan video %i.%i.%i / %s %i.%i.%i / %s",
> + LIBAVCODEC_IDENT,
> + CODEC_VER(ff_vk_enc_h264_desc.ext_props.specVersion),
> + s->driver_props.driverName,
> + CODEC_VER(s->props.properties.driverVersion),
> + s->props.properties.deviceName);
> +
> + if (len >= 0) {
> + enc->sei_identifier_string = av_malloc(len + 1);
> + if (!enc->sei_identifier_string)
> + return AVERROR(ENOMEM);
> +
> + len = snprintf(enc->sei_identifier_string, len + 1,
> + "%s / Vulkan video %i.%i.%i / %s %i.%i.%i / %s",
> + LIBAVCODEC_IDENT,
> + CODEC_VER(ff_vk_enc_h264_desc.ext_props.specVersion),
> + s->driver_props.driverName,
> + CODEC_VER(s->props.properties.driverVersion),
> + s->props.properties.deviceName);
> +
> + enc->sei_identifier.data = enc->sei_identifier_string;
> + enc->sei_identifier.data_length = len + 1;
> + }
> + }
> +
> + /* Init CBS */
> + err = ff_cbs_init(&enc->cbs, AV_CODEC_ID_H264, avctx);
> + if (err < 0)
> + return err;
> +
> + /* Write extradata if needed */
> + if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
> + uint8_t data[4096];
> + size_t data_len = sizeof(data);
> +
> + err = write_sequence_header(avctx, NULL, data, &data_len);
> + if (err < 0) {
> + av_log(avctx, AV_LOG_ERROR, "Failed to write sequence header "
> + "for extradata: %d.\n", err);
> + return err;
> + } else {
> + avctx->extradata_size = data_len;
> + avctx->extradata = av_mallocz(avctx->extradata_size +
> + AV_INPUT_BUFFER_PADDING_SIZE);
> + if (!avctx->extradata) {
> + err = AVERROR(ENOMEM);
> + return err;
> + }
> + memcpy(avctx->extradata, data, avctx->extradata_size);
> + }
> + }
> +
> + return 0;
> +}
> +
> +static av_cold int vulkan_encode_h264_close(AVCodecContext *avctx)
> +{
> + VulkanEncodeH264Context *enc = avctx->priv_data;
> + ff_vulkan_encode_uninit(&enc->common);
> + return 0;
> +}
> +
> +#define OFFSET(x) offsetof(VulkanEncodeH264Context, x)
> +#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
> +static const AVOption vulkan_encode_h264_options[] = {
> + HW_BASE_ENCODE_COMMON_OPTIONS,
> + VULKAN_ENCODE_COMMON_OPTIONS,
> +
> + { "profile", "Set profile (profile_idc and constraint_set*_flag)",
> + OFFSET(common.opts.profile), AV_OPT_TYPE_INT,
> + { .i64 = AV_PROFILE_UNKNOWN }, AV_PROFILE_UNKNOWN, 0xffff, FLAGS, .unit = "profile" },
> +
> +#define PROFILE(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
> + { .i64 = value }, 0, 0, FLAGS, .unit = "profile"
> + { PROFILE("constrained_baseline", AV_PROFILE_H264_CONSTRAINED_BASELINE) },
> + { PROFILE("main", AV_PROFILE_H264_MAIN) },
> + { PROFILE("high", AV_PROFILE_H264_HIGH) },
> + { PROFILE("high444p", AV_PROFILE_H264_HIGH_10) },
> +#undef PROFILE
> +
> + { "level", "Set level (level_idc)",
> + OFFSET(common.opts.level), AV_OPT_TYPE_INT,
> + { .i64 = AV_LEVEL_UNKNOWN }, AV_LEVEL_UNKNOWN, 0xff, FLAGS, .unit = "level" },
> +
> +#define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
> + { .i64 = value }, 0, 0, FLAGS, .unit = "level"
> + { LEVEL("1", 10) },
> + { LEVEL("1.1", 11) },
> + { LEVEL("1.2", 12) },
> + { LEVEL("1.3", 13) },
> + { LEVEL("2", 20) },
> + { LEVEL("2.1", 21) },
> + { LEVEL("2.2", 22) },
> + { LEVEL("3", 30) },
> + { LEVEL("3.1", 31) },
> + { LEVEL("3.2", 32) },
> + { LEVEL("4", 40) },
> + { LEVEL("4.1", 41) },
> + { LEVEL("4.2", 42) },
> + { LEVEL("5", 50) },
> + { LEVEL("5.1", 51) },
> + { LEVEL("5.2", 52) },
> + { LEVEL("6", 60) },
> + { LEVEL("6.1", 61) },
> + { LEVEL("6.2", 62) },
> +#undef LEVEL
> +
> + { "coder", "Entropy coder type", OFFSET(unit_opts.cabac), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, FLAGS, "coder" },
> + { "cabac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },
> + { "vlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },
> +
> + { "units", "Set units to include", OFFSET(unit_elems), AV_OPT_TYPE_FLAGS, { .i64 = UNIT_AUD | UNIT_SEI_IDENTIFIER | UNIT_SEI_RECOVERY | UNIT_SEI_TIMING | UNIT_SEI_A53_CC }, 0, INT_MAX, FLAGS, "units" },
> + { "aud", "Include AUD units", 0, AV_OPT_TYPE_CONST, { .i64 = UNIT_AUD }, INT_MIN, INT_MAX, FLAGS, "units" },
> + { "identifier", "Include encoder version identifier", 0, AV_OPT_TYPE_CONST, { .i64 = UNIT_SEI_IDENTIFIER }, INT_MIN, INT_MAX, FLAGS, "units" },
> + { "timing", "Include timing parameters (buffering_period and pic_timing)", 0, AV_OPT_TYPE_CONST, { .i64 = UNIT_SEI_TIMING }, INT_MIN, INT_MAX, FLAGS, "units" },
> + { "recovery", "Include recovery points where appropriate", 0, AV_OPT_TYPE_CONST, { .i64 = UNIT_SEI_RECOVERY }, INT_MIN, INT_MAX, FLAGS, "units" },
> + { "a53_cc", "Include A/53 caption data", 0, AV_OPT_TYPE_CONST, { .i64 = UNIT_SEI_A53_CC }, INT_MIN, INT_MAX, FLAGS, "units" },
> +
> + { NULL },
> +};
> +
> +static const FFCodecDefault vulkan_encode_h264_defaults[] = {
> + { "b", "0" },
> + { "bf", "2" },
> + { "g", "300" },
> + { "i_qfactor", "1" },
> + { "i_qoffset", "0" },
> + { "b_qfactor", "1" },
> + { "b_qoffset", "0" },
> + { "qmin", "-1" },
> + { "qmax", "-1" },
> + { NULL },
> +};
> +
> +static const AVClass vulkan_encode_h264_class = {
> + .class_name = "h264_vulkan",
> + .item_name = av_default_item_name,
> + .option = vulkan_encode_h264_options,
> + .version = LIBAVUTIL_VERSION_INT,
> +};
> +
> +const FFCodec ff_h264_vulkan_encoder = {
> + .p.name = "h264_vulkan",
> + CODEC_LONG_NAME("H.264/AVC (Vulkan)"),
> + .p.type = AVMEDIA_TYPE_VIDEO,
> + .p.id = AV_CODEC_ID_H264,
> + .priv_data_size = sizeof(VulkanEncodeH264Context),
> + .init = &vulkan_encode_h264_init,
> + FF_CODEC_RECEIVE_PACKET_CB(&ff_vulkan_encode_receive_packet),
> + .close = &vulkan_encode_h264_close,
> + .p.priv_class = &vulkan_encode_h264_class,
> + .p.capabilities = AV_CODEC_CAP_DELAY |
> + AV_CODEC_CAP_HARDWARE |
> + AV_CODEC_CAP_DR1 |
> + AV_CODEC_CAP_ENCODER_FLUSH |
> + AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
> + .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
> + .defaults = vulkan_encode_h264_defaults,
> + .p.pix_fmts = (const enum AVPixelFormat[]) {
> + AV_PIX_FMT_VULKAN,
> + AV_PIX_FMT_NONE,
> + },
> + .hw_configs = ff_vulkan_encode_hw_configs,
> + .p.wrapper_name = "vulkan",
> +};
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