/* * 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 <va/va.h>#include <va/va_enc_vp8.h> #include "libavutil/avassert.h"#include "libavutil/common.h"#include "libavutil/internal.h"#include "libavutil/opt.h"#include "libavutil/pixfmt.h" #include "avcodec.h"#include "internal.h"#include "vaapi_encode.h"#include "vp8.h"  typedef struct VAAPIEncodeVP8Context {    VAAPIEncodeContext common;     // User options.    int loop_filter_level;    int loop_filter_sharpness;     // Derived settings.    int q_index_i;    int q_index_p;} VAAPIEncodeVP8Context;  #define vseq_var(name)     vseq->name, name#define vseq_field(name)   vseq->seq_fields.bits.name, name#define vpic_var(name)     vpic->name, name#define vpic_field(name)   vpic->pic_fields.bits.name, name  static int vaapi_encode_vp8_init_sequence_params(AVCodecContext *avctx){    VAAPIEncodeContext               *ctx = avctx->priv_data;    VAEncSequenceParameterBufferVP8 *vseq = ctx->codec_sequence_params;     vseq->frame_width  = avctx->width;    vseq->frame_height = avctx->height;     vseq->frame_width_scale  = 0;    vseq->frame_height_scale = 0;     vseq->error_resilient = 0;    vseq->kf_auto = 0;     if (!(ctx->va_rc_mode & VA_RC_CQP)) {        vseq->bits_per_second = ctx->va_bit_rate;        vseq->intra_period    = ctx->gop_size;    }     return 0;} static int vaapi_encode_vp8_init_picture_params(AVCodecContext *avctx,                                                VAAPIEncodePicture *pic){    VAAPIEncodeVP8Context          *priv = avctx->priv_data;    VAEncPictureParameterBufferVP8 *vpic = pic->codec_picture_params;    int i;     vpic->reconstructed_frame = pic->recon_surface;     vpic->coded_buf = pic->output_buffer;     switch (pic->type) {    case PICTURE_TYPE_IDR:    case PICTURE_TYPE_I:        av_assert0(pic->nb_refs == 0);        vpic->ref_flags.bits.force_kf = 1;        vpic->ref_last_frame =        vpic->ref_gf_frame   =        vpic->ref_arf_frame  =            VA_INVALID_SURFACE;        break;    case PICTURE_TYPE_P:        av_assert0(pic->nb_refs == 1);        vpic->ref_flags.bits.no_ref_last = 0;        vpic->ref_flags.bits.no_ref_gf   = 1;        vpic->ref_flags.bits.no_ref_arf  = 1;        vpic->ref_last_frame =        vpic->ref_gf_frame   =        vpic->ref_arf_frame  =            pic->refs[0]->recon_surface;        break;    default:        av_assert0(0 && "invalid picture type");    }     vpic->pic_flags.bits.frame_type = (pic->type != PICTURE_TYPE_IDR);    vpic->pic_flags.bits.show_frame = 1;     vpic->pic_flags.bits.refresh_last            = 1;    vpic->pic_flags.bits.refresh_golden_frame    = 1;    vpic->pic_flags.bits.refresh_alternate_frame = 1;     vpic->pic_flags.bits.version = 0;    vpic->pic_flags.bits.loop_filter_type = 0;    for (i = 0; i < 4; i++)        vpic->loop_filter_level[i] = priv->loop_filter_level;    vpic->sharpness_level = priv->loop_filter_sharpness;     vpic->clamp_qindex_low  = 0;    vpic->clamp_qindex_high = 127;     return 0;} static int vaapi_encode_vp8_write_quant_table(AVCodecContext *avctx,                                              VAAPIEncodePicture *pic,                                              int index, int *type,                                              char *data, size_t *data_len){    VAAPIEncodeVP8Context *priv = avctx->priv_data;    VAQMatrixBufferVP8 quant;    int i, q;     if (index > 0)        return AVERROR_EOF;     if (*data_len < sizeof(quant))        return AVERROR(EINVAL);    *type     = VAQMatrixBufferType;    *data_len = sizeof(quant);     memset(&quant, 0, sizeof(quant));     if (pic->type == PICTURE_TYPE_P)        q = priv->q_index_p;    else        q = priv->q_index_i;     for (i = 0; i < 4; i++)        quant.quantization_index[i] = q;    for (i = 0; i < 5; i++)        quant.quantization_index_delta[i] = 0;     memcpy(data, &quant, sizeof(quant));    return 0;} static av_cold int vaapi_encode_vp8_configure(AVCodecContext *avctx){    VAAPIEncodeContext     *ctx = avctx->priv_data;    VAAPIEncodeVP8Context *priv = avctx->priv_data;     priv->q_index_p = av_clip(ctx->rc_quality, 0, VP8_MAX_QUANT);    if (avctx->i_quant_factor > 0.0)        priv->q_index_i =            av_clip((avctx->i_quant_factor * priv->q_index_p  +                     avctx->i_quant_offset) + 0.5,                    0, VP8_MAX_QUANT);    else        priv->q_index_i = priv->q_index_p;     ctx->roi_quant_range = VP8_MAX_QUANT;     return 0;} static const VAAPIEncodeProfile vaapi_encode_vp8_profiles[] = {    { 0 /* VP8 has no profiles */, 8, 3, 1, 1, VAProfileVP8Version0_3 },    { FF_PROFILE_UNKNOWN }}; static const VAAPIEncodeType vaapi_encode_type_vp8 = {    .profiles              = vaapi_encode_vp8_profiles,     .configure             = &vaapi_encode_vp8_configure,     .default_quality       = 40,     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferVP8),    .init_sequence_params  = &vaapi_encode_vp8_init_sequence_params,     .picture_params_size   = sizeof(VAEncPictureParameterBufferVP8),    .init_picture_params   = &vaapi_encode_vp8_init_picture_params,     .write_extra_buffer    = &vaapi_encode_vp8_write_quant_table,}; static av_cold int vaapi_encode_vp8_init(AVCodecContext *avctx){    VAAPIEncodeContext *ctx = avctx->priv_data;     ctx->codec = &vaapi_encode_type_vp8;     // No packed headers are currently desired.  VP8 has no metadata    // which would be useful to write, and no existing driver supports    // adding them anyway.    ctx->desired_packed_headers = 0;     ctx->surface_width  = FFALIGN(avctx->width,  16);    ctx->surface_height = FFALIGN(avctx->height, 16);     return ff_vaapi_encode_init(avctx);} #define OFFSET(x) offsetof(VAAPIEncodeVP8Context, x)#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)static const AVOption vaapi_encode_vp8_options[] = {    VAAPI_ENCODE_COMMON_OPTIONS,    VAAPI_ENCODE_RC_OPTIONS,     { "loop_filter_level", "Loop filter level",      OFFSET(loop_filter_level), AV_OPT_TYPE_INT, { .i64 = 16 }, 0, 63, FLAGS },    { "loop_filter_sharpness", "Loop filter sharpness",      OFFSET(loop_filter_sharpness), AV_OPT_TYPE_INT, { .i64 = 4 }, 0, 15, FLAGS },    { NULL },}; static const AVCodecDefault vaapi_encode_vp8_defaults[] = {    { "b",              "0"   },    { "bf",             "0"   },    { "g",              "120" },    { "qmin",           "-1"  },    { "qmax",           "-1"  },    { NULL },}; static const AVClass vaapi_encode_vp8_class = {    .class_name = "vp8_vaapi",    .item_name  = av_default_item_name,    .option     = vaapi_encode_vp8_options,    .version    = LIBAVUTIL_VERSION_INT,}; AVCodec ff_vp8_vaapi_encoder = {    .name           = "vp8_vaapi",    .long_name      = NULL_IF_CONFIG_SMALL("VP8 (VAAPI)"),    .type           = AVMEDIA_TYPE_VIDEO,    .id             = AV_CODEC_ID_VP8,    .priv_data_size = sizeof(VAAPIEncodeVP8Context),    .init           = &vaapi_encode_vp8_init,    .receive_packet = &ff_vaapi_encode_receive_packet,    .close          = &ff_vaapi_encode_close,    .priv_class     = &vaapi_encode_vp8_class,    .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,    .defaults       = vaapi_encode_vp8_defaults,    .pix_fmts = (const enum AVPixelFormat[]) {        AV_PIX_FMT_VAAPI,        AV_PIX_FMT_NONE,    },    .hw_configs     = ff_vaapi_encode_hw_configs,    .wrapper_name   = "vaapi",};