/* * 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 <string.h> #include <va/va.h>#include <va/va_enc_h264.h> #include "libavutil/avassert.h"#include "libavutil/common.h"#include "libavutil/internal.h"#include "libavutil/opt.h" #include "avcodec.h"#include "cbs.h"#include "cbs_h264.h"#include "h264.h"#include "h264_levels.h"#include "h264_sei.h"#include "internal.h"#include "vaapi_encode.h" enum { SEI_TIMING = 0x01, SEI_IDENTIFIER = 0x02, SEI_RECOVERY_POINT = 0x04,}; // Random (version 4) ISO 11578 UUID.static const uint8_t vaapi_encode_h264_sei_identifier_uuid[16] = { 0x59, 0x94, 0x8b, 0x28, 0x11, 0xec, 0x45, 0xaf, 0x96, 0x75, 0x19, 0xd4, 0x1f, 0xea, 0xa9, 0x4d,}; typedef struct VAAPIEncodeH264Picture { int frame_num; int pic_order_cnt; int64_t last_idr_frame; uint16_t idr_pic_id; int primary_pic_type; int slice_type; int cpb_delay; int dpb_delay;} VAAPIEncodeH264Picture; typedef struct VAAPIEncodeH264Context { VAAPIEncodeContext common; // User options. int qp; int quality; int coder; int aud; int sei; int profile; int level; // Derived settings. int mb_width; int mb_height; int fixed_qp_idr; int fixed_qp_p; int fixed_qp_b; int dpb_frames; // Writer structures. CodedBitstreamContext *cbc; CodedBitstreamFragment current_access_unit; H264RawAUD raw_aud; H264RawSPS raw_sps; H264RawPPS raw_pps; H264RawSlice raw_slice; H264RawSEIBufferingPeriod sei_buffering_period; H264RawSEIPicTiming sei_pic_timing; H264RawSEIRecoveryPoint sei_recovery_point; SEIRawUserDataUnregistered sei_identifier; char *sei_identifier_string; int aud_needed; int sei_needed; int sei_cbr_workaround_needed;} VAAPIEncodeH264Context; static int vaapi_encode_h264_write_access_unit(AVCodecContext *avctx, char *data, size_t *data_len, CodedBitstreamFragment *au){ VAAPIEncodeH264Context *priv = avctx->priv_data; int err; err = ff_cbs_write_fragment_data(priv->cbc, au); if (err < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to write packed header.\n"); return err; } if (*data_len < 8 * au->data_size - au->data_bit_padding) { av_log(avctx, AV_LOG_ERROR, "Access unit too large: " "%zu < %zu.\n", *data_len, 8 * au->data_size - au->data_bit_padding); return AVERROR(ENOSPC); } memcpy(data, au->data, au->data_size); *data_len = 8 * au->data_size - au->data_bit_padding; return 0;} static int vaapi_encode_h264_add_nal(AVCodecContext *avctx, CodedBitstreamFragment *au, void *nal_unit){ H264RawNALUnitHeader *header = nal_unit; int err; 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; } return 0;} static int vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx, char *data, size_t *data_len){ VAAPIEncodeH264Context *priv = avctx->priv_data; CodedBitstreamFragment *au = &priv->current_access_unit; int err; if (priv->aud_needed) { err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud); if (err < 0) goto fail; priv->aud_needed = 0; } err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_sps); if (err < 0) goto fail; err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_pps); if (err < 0) goto fail; err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);fail: ff_cbs_fragment_reset(au); return err;} static int vaapi_encode_h264_write_slice_header(AVCodecContext *avctx, VAAPIEncodePicture *pic, VAAPIEncodeSlice *slice, char *data, size_t *data_len){ VAAPIEncodeH264Context *priv = avctx->priv_data; CodedBitstreamFragment *au = &priv->current_access_unit; int err; if (priv->aud_needed) { err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud); if (err < 0) goto fail; priv->aud_needed = 0; } err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_slice); if (err < 0) goto fail; err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);fail: ff_cbs_fragment_reset(au); return err;} static int vaapi_encode_h264_write_extra_header(AVCodecContext *avctx, VAAPIEncodePicture *pic, int index, int *type, char *data, size_t *data_len){ VAAPIEncodeH264Context *priv = avctx->priv_data; CodedBitstreamFragment *au = &priv->current_access_unit; int err; if (priv->sei_needed) { if (priv->aud_needed) { err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud); if (err < 0) goto fail; priv->aud_needed = 0; } if (priv->sei_needed & SEI_IDENTIFIER) { err = ff_cbs_sei_add_message(priv->cbc, au, 1, SEI_TYPE_USER_DATA_UNREGISTERED, &priv->sei_identifier, NULL); if (err < 0) goto fail; } if (priv->sei_needed & SEI_TIMING) { if (pic->type == PICTURE_TYPE_IDR) { err = ff_cbs_sei_add_message(priv->cbc, au, 1, SEI_TYPE_BUFFERING_PERIOD, &priv->sei_buffering_period, NULL); if (err < 0) goto fail; } err = ff_cbs_sei_add_message(priv->cbc, au, 1, SEI_TYPE_PIC_TIMING, &priv->sei_pic_timing, NULL); if (err < 0) goto fail; } if (priv->sei_needed & SEI_RECOVERY_POINT) { err = ff_cbs_sei_add_message(priv->cbc, au, 1, SEI_TYPE_RECOVERY_POINT, &priv->sei_recovery_point, NULL); if (err < 0) goto fail; } priv->sei_needed = 0; err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au); if (err < 0) goto fail; ff_cbs_fragment_reset(au); *type = VAEncPackedHeaderRawData; return 0; #if !CONFIG_VAAPI_1 } else if (priv->sei_cbr_workaround_needed) { // Insert a zero-length header using the old SEI type. This is // required to avoid triggering broken behaviour on Intel platforms // in CBR mode where an invalid SEI message is generated by the // driver and inserted into the stream. *data_len = 0; *type = VAEncPackedHeaderH264_SEI; priv->sei_cbr_workaround_needed = 0; return 0;#endif } else { return AVERROR_EOF; } fail: ff_cbs_fragment_reset(au); return err;} static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx){ VAAPIEncodeContext *ctx = avctx->priv_data; VAAPIEncodeH264Context *priv = avctx->priv_data; H264RawSPS *sps = &priv->raw_sps; H264RawPPS *pps = &priv->raw_pps; VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params; VAEncPictureParameterBufferH264 *vpic = ctx->codec_picture_params; memset(sps, 0, sizeof(*sps)); memset(pps, 0, sizeof(*pps)); sps->nal_unit_header.nal_ref_idc = 3; sps->nal_unit_header.nal_unit_type = H264_NAL_SPS; sps->profile_idc = avctx->profile & 0xff; if (avctx->profile == FF_PROFILE_H264_CONSTRAINED_BASELINE || avctx->profile == FF_PROFILE_H264_MAIN) sps->constraint_set1_flag = 1; if (avctx->profile == FF_PROFILE_H264_HIGH) sps->constraint_set3_flag = ctx->gop_size == 1; if (avctx->profile == FF_PROFILE_H264_MAIN || avctx->profile == FF_PROFILE_H264_HIGH) { sps->constraint_set4_flag = 1; sps->constraint_set5_flag = ctx->b_per_p == 0; } if (ctx->gop_size == 1) priv->dpb_frames = 0; else priv->dpb_frames = 1 + ctx->max_b_depth; if (avctx->level != FF_LEVEL_UNKNOWN) { sps->level_idc = avctx->level; } else { const H264LevelDescriptor *level; int framerate; if (avctx->framerate.num > 0 && avctx->framerate.den > 0) framerate = avctx->framerate.num / avctx->framerate.den; else framerate = 0; level = ff_h264_guess_level(sps->profile_idc, avctx->bit_rate, framerate, priv->mb_width * 16, priv->mb_height * 16, priv->dpb_frames); if (level) { av_log(avctx, AV_LOG_VERBOSE, "Using level %s.\n", level->name); if (level->constraint_set3_flag) sps->constraint_set3_flag = 1; sps->level_idc = level->level_idc; } else { av_log(avctx, AV_LOG_WARNING, "Stream will not conform " "to any level: using level 6.2.\n"); sps->level_idc = 62; } } sps->seq_parameter_set_id = 0; sps->chroma_format_idc = 1; sps->log2_max_frame_num_minus4 = 4; sps->pic_order_cnt_type = 0; sps->log2_max_pic_order_cnt_lsb_minus4 = 4; sps->max_num_ref_frames = priv->dpb_frames; sps->pic_width_in_mbs_minus1 = priv->mb_width - 1; sps->pic_height_in_map_units_minus1 = priv->mb_height - 1; sps->frame_mbs_only_flag = 1; sps->direct_8x8_inference_flag = 1; if (avctx->width != 16 * priv->mb_width || avctx->height != 16 * priv->mb_height) { sps->frame_cropping_flag = 1; sps->frame_crop_left_offset = 0; sps->frame_crop_right_offset = (16 * priv->mb_width - avctx->width) / 2; sps->frame_crop_top_offset = 0; sps->frame_crop_bottom_offset = (16 * priv->mb_height - avctx->height) / 2; } else { sps->frame_cropping_flag = 0; } sps->vui_parameters_present_flag = 1; if (avctx->sample_aspect_ratio.num != 0 && avctx->sample_aspect_ratio.den != 0) { static const AVRational sar_idc[] = { { 0, 0 }, { 1, 1 }, { 12, 11 }, { 10, 11 }, { 16, 11 }, { 40, 33 }, { 24, 11 }, { 20, 11 }, { 32, 11 }, { 80, 33 }, { 18, 11 }, { 15, 11 }, { 64, 33 }, { 160, 99 }, { 4, 3 }, { 3, 2 }, { 2, 1 }, }; int num, den, i; av_reduce(&num, &den, avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 65535); for (i = 0; i < FF_ARRAY_ELEMS(sar_idc); i++) { if (num == sar_idc[i].num && den == sar_idc[i].den) { sps->vui.aspect_ratio_idc = i; break; } } if (i >= FF_ARRAY_ELEMS(sar_idc)) { sps->vui.aspect_ratio_idc = 255; sps->vui.sar_width = num; sps->vui.sar_height = den; } sps->vui.aspect_ratio_info_present_flag = 1; } // Unspecified video format, from table E-2. sps->vui.video_format = 5; sps->vui.video_full_range_flag = avctx->color_range == AVCOL_RANGE_JPEG; sps->vui.colour_primaries = avctx->color_primaries; sps->vui.transfer_characteristics = avctx->color_trc; sps->vui.matrix_coefficients = avctx->colorspace; if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED || avctx->color_trc != AVCOL_TRC_UNSPECIFIED || avctx->colorspace != AVCOL_SPC_UNSPECIFIED) sps->vui.colour_description_present_flag = 1; if (avctx->color_range != AVCOL_RANGE_UNSPECIFIED || sps->vui.colour_description_present_flag) sps->vui.video_signal_type_present_flag = 1; if (avctx->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED) { sps->vui.chroma_loc_info_present_flag = 1; sps->vui.chroma_sample_loc_type_top_field = sps->vui.chroma_sample_loc_type_bottom_field = avctx->chroma_sample_location - 1; } sps->vui.timing_info_present_flag = 1; if (avctx->framerate.num > 0 && avctx->framerate.den > 0) { sps->vui.num_units_in_tick = avctx->framerate.den; sps->vui.time_scale = 2 * avctx->framerate.num; sps->vui.fixed_frame_rate_flag = 1; } else { sps->vui.num_units_in_tick = avctx->time_base.num; sps->vui.time_scale = 2 * avctx->time_base.den; sps->vui.fixed_frame_rate_flag = 0; } if (priv->sei & SEI_TIMING) { H264RawHRD *hrd = &sps->vui.nal_hrd_parameters; H264RawSEIBufferingPeriod *bp = &priv->sei_buffering_period; sps->vui.nal_hrd_parameters_present_flag = 1; hrd->cpb_cnt_minus1 = 0; // Try to scale these to a sensible range so that the // golomb encode of the value is not overlong. hrd->bit_rate_scale = av_clip_uintp2(av_log2(ctx->va_bit_rate) - 15 - 6, 4); hrd->bit_rate_value_minus1[0] = (ctx->va_bit_rate >> hrd->bit_rate_scale + 6) - 1; hrd->cpb_size_scale = av_clip_uintp2(av_log2(ctx->hrd_params.buffer_size) - 15 - 4, 4); hrd->cpb_size_value_minus1[0] = (ctx->hrd_params.buffer_size >> hrd->cpb_size_scale + 4) - 1; // CBR mode as defined for the HRD cannot be achieved without filler // data, so this flag cannot be set even with VAAPI CBR modes. hrd->cbr_flag[0] = 0; hrd->initial_cpb_removal_delay_length_minus1 = 23; hrd->cpb_removal_delay_length_minus1 = 23; hrd->dpb_output_delay_length_minus1 = 7; hrd->time_offset_length = 0; bp->seq_parameter_set_id = sps->seq_parameter_set_id; // This calculation can easily overflow 32 bits. bp->nal.initial_cpb_removal_delay[0] = 90000 * (uint64_t)ctx->hrd_params.initial_buffer_fullness / ctx->hrd_params.buffer_size; bp->nal.initial_cpb_removal_delay_offset[0] = 0; } else { sps->vui.nal_hrd_parameters_present_flag = 0; sps->vui.low_delay_hrd_flag = 1 - sps->vui.fixed_frame_rate_flag; } sps->vui.bitstream_restriction_flag = 1; sps->vui.motion_vectors_over_pic_boundaries_flag = 1; sps->vui.log2_max_mv_length_horizontal = 15; sps->vui.log2_max_mv_length_vertical = 15; sps->vui.max_num_reorder_frames = ctx->max_b_depth; sps->vui.max_dec_frame_buffering = ctx->max_b_depth + 1; pps->nal_unit_header.nal_ref_idc = 3; pps->nal_unit_header.nal_unit_type = H264_NAL_PPS; pps->pic_parameter_set_id = 0; pps->seq_parameter_set_id = 0; pps->entropy_coding_mode_flag = !(sps->profile_idc == FF_PROFILE_H264_BASELINE || sps->profile_idc == FF_PROFILE_H264_EXTENDED || sps->profile_idc == FF_PROFILE_H264_CAVLC_444); if (!priv->coder && pps->entropy_coding_mode_flag) pps->entropy_coding_mode_flag = 0; pps->num_ref_idx_l0_default_active_minus1 = 0; pps->num_ref_idx_l1_default_active_minus1 = 0;Lines 1–500 of 1346. 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/* * 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 <string.h> #include <va/va.h> #include <va/va_enc_h264.h> #include "libavutil/avassert.h" #include "libavutil/common.h" #include "libavutil/internal.h" #include "libavutil/opt.h" #include "avcodec.h" #include "cbs.h" #include "cbs_h264.h" #include "h264.h" #include "h264_levels.h" #include "h264_sei.h" #include "internal.h" #include "vaapi_encode.h" enum { SEI_TIMING = 0x01, SEI_IDENTIFIER = 0x02, SEI_RECOVERY_POINT = 0x04, }; // Random (version 4) ISO 11578 UUID. static const uint8_t vaapi_encode_h264_sei_identifier_uuid[16] = { 0x59, 0x94, 0x8b, 0x28, 0x11, 0xec, 0x45, 0xaf, 0x96, 0x75, 0x19, 0xd4, 0x1f, 0xea, 0xa9, 0x4d, }; typedef struct VAAPIEncodeH264Picture { int frame_num; int pic_order_cnt; int64_t last_idr_frame; uint16_t idr_pic_id; int primary_pic_type; int slice_type; int cpb_delay; int dpb_delay; } VAAPIEncodeH264Picture; typedef struct VAAPIEncodeH264Context { VAAPIEncodeContext common; // User options. int qp; int quality; int coder; int aud; int sei; int profile; int level; // Derived settings. int mb_width; int mb_height; int fixed_qp_idr; int fixed_qp_p; int fixed_qp_b; int dpb_frames; // Writer structures. CodedBitstreamContext *cbc; CodedBitstreamFragment current_access_unit; H264RawAUD raw_aud; H264RawSPS raw_sps; H264RawPPS raw_pps; H264RawSlice raw_slice; H264RawSEIBufferingPeriod sei_buffering_period; H264RawSEIPicTiming sei_pic_timing; H264RawSEIRecoveryPoint sei_recovery_point; SEIRawUserDataUnregistered sei_identifier; char *sei_identifier_string; int aud_needed; int sei_needed; int sei_cbr_workaround_needed; } VAAPIEncodeH264Context; static int vaapi_encode_h264_write_access_unit(AVCodecContext *avctx, char *data, size_t *data_len, CodedBitstreamFragment *au) { VAAPIEncodeH264Context *priv = avctx->priv_data; int err; err = ff_cbs_write_fragment_data(priv->cbc, au); if (err < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to write packed header.\n"); return err; } if (*data_len < 8 * au->data_size - au->data_bit_padding) { av_log(avctx, AV_LOG_ERROR, "Access unit too large: " "%zu < %zu.\n", *data_len, 8 * au->data_size - au->data_bit_padding); return AVERROR(ENOSPC); } memcpy(data, au->data, au->data_size); *data_len = 8 * au->data_size - au->data_bit_padding; return 0; } static int vaapi_encode_h264_add_nal(AVCodecContext *avctx, CodedBitstreamFragment *au, void *nal_unit) { H264RawNALUnitHeader *header = nal_unit; int err; 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; } return 0; } static int vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx, char *data, size_t *data_len) { VAAPIEncodeH264Context *priv = avctx->priv_data; CodedBitstreamFragment *au = &priv->current_access_unit; int err; if (priv->aud_needed) { err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud); if (err < 0) goto fail; priv->aud_needed = 0; } err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_sps); if (err < 0) goto fail; err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_pps); if (err < 0) goto fail; err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au); fail: ff_cbs_fragment_reset(au); return err; } static int vaapi_encode_h264_write_slice_header(AVCodecContext *avctx, VAAPIEncodePicture *pic, VAAPIEncodeSlice *slice, char *data, size_t *data_len) { VAAPIEncodeH264Context *priv = avctx->priv_data; CodedBitstreamFragment *au = &priv->current_access_unit; int err; if (priv->aud_needed) { err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud); if (err < 0) goto fail; priv->aud_needed = 0; } err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_slice); if (err < 0) goto fail; err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au); fail: ff_cbs_fragment_reset(au); return err; } static int vaapi_encode_h264_write_extra_header(AVCodecContext *avctx, VAAPIEncodePicture *pic, int index, int *type, char *data, size_t *data_len) { VAAPIEncodeH264Context *priv = avctx->priv_data; CodedBitstreamFragment *au = &priv->current_access_unit; int err; if (priv->sei_needed) { if (priv->aud_needed) { err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud); if (err < 0) goto fail; priv->aud_needed = 0; } if (priv->sei_needed & SEI_IDENTIFIER) { err = ff_cbs_sei_add_message(priv->cbc, au, 1, SEI_TYPE_USER_DATA_UNREGISTERED, &priv->sei_identifier, NULL); if (err < 0) goto fail; } if (priv->sei_needed & SEI_TIMING) { if (pic->type == PICTURE_TYPE_IDR) { err = ff_cbs_sei_add_message(priv->cbc, au, 1, SEI_TYPE_BUFFERING_PERIOD, &priv->sei_buffering_period, NULL); if (err < 0) goto fail; } err = ff_cbs_sei_add_message(priv->cbc, au, 1, SEI_TYPE_PIC_TIMING, &priv->sei_pic_timing, NULL); if (err < 0) goto fail; } if (priv->sei_needed & SEI_RECOVERY_POINT) { err = ff_cbs_sei_add_message(priv->cbc, au, 1, SEI_TYPE_RECOVERY_POINT, &priv->sei_recovery_point, NULL); if (err < 0) goto fail; } priv->sei_needed = 0; err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au); if (err < 0) goto fail; ff_cbs_fragment_reset(au); *type = VAEncPackedHeaderRawData; return 0; #if !CONFIG_VAAPI_1 } else if (priv->sei_cbr_workaround_needed) { // Insert a zero-length header using the old SEI type. This is // required to avoid triggering broken behaviour on Intel platforms // in CBR mode where an invalid SEI message is generated by the // driver and inserted into the stream. *data_len = 0; *type = VAEncPackedHeaderH264_SEI; priv->sei_cbr_workaround_needed = 0; return 0; #endif } else { return AVERROR_EOF; } fail: ff_cbs_fragment_reset(au); return err; } static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx) { VAAPIEncodeContext *ctx = avctx->priv_data; VAAPIEncodeH264Context *priv = avctx->priv_data; H264RawSPS *sps = &priv->raw_sps; H264RawPPS *pps = &priv->raw_pps; VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params; VAEncPictureParameterBufferH264 *vpic = ctx->codec_picture_params; memset(sps, 0, sizeof(*sps)); memset(pps, 0, sizeof(*pps)); sps->nal_unit_header.nal_ref_idc = 3; sps->nal_unit_header.nal_unit_type = H264_NAL_SPS; sps->profile_idc = avctx->profile & 0xff; if (avctx->profile == FF_PROFILE_H264_CONSTRAINED_BASELINE || avctx->profile == FF_PROFILE_H264_MAIN) sps->constraint_set1_flag = 1; if (avctx->profile == FF_PROFILE_H264_HIGH) sps->constraint_set3_flag = ctx->gop_size == 1; if (avctx->profile == FF_PROFILE_H264_MAIN || avctx->profile == FF_PROFILE_H264_HIGH) { sps->constraint_set4_flag = 1; sps->constraint_set5_flag = ctx->b_per_p == 0; } if (ctx->gop_size == 1) priv->dpb_frames = 0; else priv->dpb_frames = 1 + ctx->max_b_depth; if (avctx->level != FF_LEVEL_UNKNOWN) { sps->level_idc = avctx->level; } else { const H264LevelDescriptor *level; int framerate; if (avctx->framerate.num > 0 && avctx->framerate.den > 0) framerate = avctx->framerate.num / avctx->framerate.den; else framerate = 0; level = ff_h264_guess_level(sps->profile_idc, avctx->bit_rate, framerate, priv->mb_width * 16, priv->mb_height * 16, priv->dpb_frames); if (level) { av_log(avctx, AV_LOG_VERBOSE, "Using level %s.\n", level->name); if (level->constraint_set3_flag) sps->constraint_set3_flag = 1; sps->level_idc = level->level_idc; } else { av_log(avctx, AV_LOG_WARNING, "Stream will not conform " "to any level: using level 6.2.\n"); sps->level_idc = 62; } } sps->seq_parameter_set_id = 0; sps->chroma_format_idc = 1; sps->log2_max_frame_num_minus4 = 4; sps->pic_order_cnt_type = 0; sps->log2_max_pic_order_cnt_lsb_minus4 = 4; sps->max_num_ref_frames = priv->dpb_frames; sps->pic_width_in_mbs_minus1 = priv->mb_width - 1; sps->pic_height_in_map_units_minus1 = priv->mb_height - 1; sps->frame_mbs_only_flag = 1; sps->direct_8x8_inference_flag = 1; if (avctx->width != 16 * priv->mb_width || avctx->height != 16 * priv->mb_height) { sps->frame_cropping_flag = 1; sps->frame_crop_left_offset = 0; sps->frame_crop_right_offset = (16 * priv->mb_width - avctx->width) / 2; sps->frame_crop_top_offset = 0; sps->frame_crop_bottom_offset = (16 * priv->mb_height - avctx->height) / 2; } else { sps->frame_cropping_flag = 0; } sps->vui_parameters_present_flag = 1; if (avctx->sample_aspect_ratio.num != 0 && avctx->sample_aspect_ratio.den != 0) { static const AVRational sar_idc[] = { { 0, 0 }, { 1, 1 }, { 12, 11 }, { 10, 11 }, { 16, 11 }, { 40, 33 }, { 24, 11 }, { 20, 11 }, { 32, 11 }, { 80, 33 }, { 18, 11 }, { 15, 11 }, { 64, 33 }, { 160, 99 }, { 4, 3 }, { 3, 2 }, { 2, 1 }, }; int num, den, i; av_reduce(&num, &den, avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 65535); for (i = 0; i < FF_ARRAY_ELEMS(sar_idc); i++) { if (num == sar_idc[i].num && den == sar_idc[i].den) { sps->vui.aspect_ratio_idc = i; break; } } if (i >= FF_ARRAY_ELEMS(sar_idc)) { sps->vui.aspect_ratio_idc = 255; sps->vui.sar_width = num; sps->vui.sar_height = den; } sps->vui.aspect_ratio_info_present_flag = 1; } // Unspecified video format, from table E-2. sps->vui.video_format = 5; sps->vui.video_full_range_flag = avctx->color_range == AVCOL_RANGE_JPEG; sps->vui.colour_primaries = avctx->color_primaries; sps->vui.transfer_characteristics = avctx->color_trc; sps->vui.matrix_coefficients = avctx->colorspace; if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED || avctx->color_trc != AVCOL_TRC_UNSPECIFIED || avctx->colorspace != AVCOL_SPC_UNSPECIFIED) sps->vui.colour_description_present_flag = 1; if (avctx->color_range != AVCOL_RANGE_UNSPECIFIED || sps->vui.colour_description_present_flag) sps->vui.video_signal_type_present_flag = 1; if (avctx->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED) { sps->vui.chroma_loc_info_present_flag = 1; sps->vui.chroma_sample_loc_type_top_field = sps->vui.chroma_sample_loc_type_bottom_field = avctx->chroma_sample_location - 1; } sps->vui.timing_info_present_flag = 1; if (avctx->framerate.num > 0 && avctx->framerate.den > 0) { sps->vui.num_units_in_tick = avctx->framerate.den; sps->vui.time_scale = 2 * avctx->framerate.num; sps->vui.fixed_frame_rate_flag = 1; } else { sps->vui.num_units_in_tick = avctx->time_base.num; sps->vui.time_scale = 2 * avctx->time_base.den; sps->vui.fixed_frame_rate_flag = 0; } if (priv->sei & SEI_TIMING) { H264RawHRD *hrd = &sps->vui.nal_hrd_parameters; H264RawSEIBufferingPeriod *bp = &priv->sei_buffering_period; sps->vui.nal_hrd_parameters_present_flag = 1; hrd->cpb_cnt_minus1 = 0; // Try to scale these to a sensible range so that the // golomb encode of the value is not overlong. hrd->bit_rate_scale = av_clip_uintp2(av_log2(ctx->va_bit_rate) - 15 - 6, 4); hrd->bit_rate_value_minus1[0] = (ctx->va_bit_rate >> hrd->bit_rate_scale + 6) - 1; hrd->cpb_size_scale = av_clip_uintp2(av_log2(ctx->hrd_params.buffer_size) - 15 - 4, 4); hrd->cpb_size_value_minus1[0] = (ctx->hrd_params.buffer_size >> hrd->cpb_size_scale + 4) - 1; // CBR mode as defined for the HRD cannot be achieved without filler // data, so this flag cannot be set even with VAAPI CBR modes. hrd->cbr_flag[0] = 0; hrd->initial_cpb_removal_delay_length_minus1 = 23; hrd->cpb_removal_delay_length_minus1 = 23; hrd->dpb_output_delay_length_minus1 = 7; hrd->time_offset_length = 0; bp->seq_parameter_set_id = sps->seq_parameter_set_id; // This calculation can easily overflow 32 bits. bp->nal.initial_cpb_removal_delay[0] = 90000 * (uint64_t)ctx->hrd_params.initial_buffer_fullness / ctx->hrd_params.buffer_size; bp->nal.initial_cpb_removal_delay_offset[0] = 0; } else { sps->vui.nal_hrd_parameters_present_flag = 0; sps->vui.low_delay_hrd_flag = 1 - sps->vui.fixed_frame_rate_flag; } sps->vui.bitstream_restriction_flag = 1; sps->vui.motion_vectors_over_pic_boundaries_flag = 1; sps->vui.log2_max_mv_length_horizontal = 15; sps->vui.log2_max_mv_length_vertical = 15; sps->vui.max_num_reorder_frames = ctx->max_b_depth; sps->vui.max_dec_frame_buffering = ctx->max_b_depth + 1; pps->nal_unit_header.nal_ref_idc = 3; pps->nal_unit_header.nal_unit_type = H264_NAL_PPS; pps->pic_parameter_set_id = 0; pps->seq_parameter_set_id = 0; pps->entropy_coding_mode_flag = !(sps->profile_idc == FF_PROFILE_H264_BASELINE || sps->profile_idc == FF_PROFILE_H264_EXTENDED || sps->profile_idc == FF_PROFILE_H264_CAVLC_444); if (!priv->coder && pps->entropy_coding_mode_flag) pps->entropy_coding_mode_flag = 0; pps->num_ref_idx_l0_default_active_minus1 = 0; pps->num_ref_idx_l1_default_active_minus1 = 0;