403 lines
12 KiB
C
403 lines
12 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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/*!\file
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* \brief Provides the high level interface to wrap encoder algorithms.
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*
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*/
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#include "config/aom_config.h"
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#if HAVE_FEXCEPT
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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#include <fenv.h>
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#endif
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#include <limits.h>
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#include <string.h>
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#include "aom/internal/aom_codec_internal.h"
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#define SAVE_STATUS(ctx, var) (ctx ? (ctx->err = var) : var)
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static aom_codec_alg_priv_t *get_alg_priv(aom_codec_ctx_t *ctx) {
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return (aom_codec_alg_priv_t *)ctx->priv;
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}
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aom_codec_err_t aom_codec_enc_init_ver(aom_codec_ctx_t *ctx,
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aom_codec_iface_t *iface,
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const aom_codec_enc_cfg_t *cfg,
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aom_codec_flags_t flags, int ver) {
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aom_codec_err_t res;
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if (ver != AOM_ENCODER_ABI_VERSION)
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res = AOM_CODEC_ABI_MISMATCH;
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else if (!ctx || !iface || !cfg)
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res = AOM_CODEC_INVALID_PARAM;
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else if (iface->abi_version != AOM_CODEC_INTERNAL_ABI_VERSION)
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res = AOM_CODEC_ABI_MISMATCH;
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else if (!(iface->caps & AOM_CODEC_CAP_ENCODER))
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res = AOM_CODEC_INCAPABLE;
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else if ((flags & AOM_CODEC_USE_PSNR) && !(iface->caps & AOM_CODEC_CAP_PSNR))
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res = AOM_CODEC_INCAPABLE;
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else {
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ctx->iface = iface;
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ctx->name = iface->name;
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ctx->priv = NULL;
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ctx->init_flags = flags;
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ctx->config.enc = cfg;
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res = ctx->iface->init(ctx, NULL);
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if (res) {
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ctx->err_detail = ctx->priv ? ctx->priv->err_detail : NULL;
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aom_codec_destroy(ctx);
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}
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}
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return SAVE_STATUS(ctx, res);
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}
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aom_codec_err_t aom_codec_enc_init_multi_ver(
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aom_codec_ctx_t *ctx, aom_codec_iface_t *iface, aom_codec_enc_cfg_t *cfg,
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int num_enc, aom_codec_flags_t flags, aom_rational_t *dsf, int ver) {
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aom_codec_err_t res = AOM_CODEC_OK;
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if (ver != AOM_ENCODER_ABI_VERSION)
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res = AOM_CODEC_ABI_MISMATCH;
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else if (!ctx || !iface || !cfg || (num_enc > 16 || num_enc < 1))
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res = AOM_CODEC_INVALID_PARAM;
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else if (iface->abi_version != AOM_CODEC_INTERNAL_ABI_VERSION)
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res = AOM_CODEC_ABI_MISMATCH;
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else if (!(iface->caps & AOM_CODEC_CAP_ENCODER))
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res = AOM_CODEC_INCAPABLE;
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else if ((flags & AOM_CODEC_USE_PSNR) && !(iface->caps & AOM_CODEC_CAP_PSNR))
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res = AOM_CODEC_INCAPABLE;
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else {
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int i;
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void *mem_loc = NULL;
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if (!(res = iface->enc.mr_get_mem_loc(cfg, &mem_loc))) {
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for (i = 0; i < num_enc; i++) {
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aom_codec_priv_enc_mr_cfg_t mr_cfg;
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/* Validate down-sampling factor. */
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if (dsf->num < 1 || dsf->num > 4096 || dsf->den < 1 ||
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dsf->den > dsf->num) {
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res = AOM_CODEC_INVALID_PARAM;
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break;
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}
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mr_cfg.mr_low_res_mode_info = mem_loc;
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mr_cfg.mr_total_resolutions = num_enc;
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mr_cfg.mr_encoder_id = num_enc - 1 - i;
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mr_cfg.mr_down_sampling_factor.num = dsf->num;
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mr_cfg.mr_down_sampling_factor.den = dsf->den;
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/* Force Key-frame synchronization. Namely, encoder at higher
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* resolution always use the same frame_type chosen by the
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* lowest-resolution encoder.
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*/
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if (mr_cfg.mr_encoder_id) cfg->kf_mode = AOM_KF_DISABLED;
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ctx->iface = iface;
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ctx->name = iface->name;
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ctx->priv = NULL;
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ctx->init_flags = flags;
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ctx->config.enc = cfg;
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res = ctx->iface->init(ctx, &mr_cfg);
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if (res) {
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const char *error_detail = ctx->priv ? ctx->priv->err_detail : NULL;
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/* Destroy current ctx */
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ctx->err_detail = error_detail;
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aom_codec_destroy(ctx);
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/* Destroy already allocated high-level ctx */
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while (i) {
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ctx--;
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ctx->err_detail = error_detail;
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aom_codec_destroy(ctx);
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i--;
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}
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}
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if (res) break;
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ctx++;
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cfg++;
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dsf++;
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}
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ctx--;
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}
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}
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return SAVE_STATUS(ctx, res);
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}
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aom_codec_err_t aom_codec_enc_config_default(aom_codec_iface_t *iface,
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aom_codec_enc_cfg_t *cfg,
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unsigned int usage) {
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aom_codec_err_t res;
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aom_codec_enc_cfg_map_t *map;
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int i;
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if (!iface || !cfg || usage > INT_MAX)
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res = AOM_CODEC_INVALID_PARAM;
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else if (!(iface->caps & AOM_CODEC_CAP_ENCODER))
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res = AOM_CODEC_INCAPABLE;
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else {
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res = AOM_CODEC_INVALID_PARAM;
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for (i = 0; i < iface->enc.cfg_map_count; ++i) {
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map = iface->enc.cfg_maps + i;
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if (map->usage == (int)usage) {
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*cfg = map->cfg;
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cfg->g_usage = usage;
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res = AOM_CODEC_OK;
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break;
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}
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}
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}
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/* default values */
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if (cfg) {
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cfg->cfg.ext_partition = 1;
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}
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return res;
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}
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#if ARCH_X86 || ARCH_X86_64
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/* On X86, disable the x87 unit's internal 80 bit precision for better
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* consistency with the SSE unit's 64 bit precision.
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*/
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#include "aom_ports/x86.h"
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#define FLOATING_POINT_SET_PRECISION \
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unsigned short x87_orig_mode = x87_set_double_precision();
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#define FLOATING_POINT_RESTORE_PRECISION x87_set_control_word(x87_orig_mode);
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#else
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#define FLOATING_POINT_SET_PRECISION
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#define FLOATING_POINT_RESTORE_PRECISION
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#endif // ARCH_X86 || ARCH_X86_64
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#if HAVE_FEXCEPT && CONFIG_DEBUG
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#define FLOATING_POINT_SET_EXCEPTIONS \
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const int float_excepts = feenableexcept(FE_DIVBYZERO);
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#define FLOATING_POINT_RESTORE_EXCEPTIONS feenableexcept(float_excepts);
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#else
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#define FLOATING_POINT_SET_EXCEPTIONS
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#define FLOATING_POINT_RESTORE_EXCEPTIONS
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#endif // HAVE_FEXCEPT && CONFIG_DEBUG
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/* clang-format off */
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#define FLOATING_POINT_INIT \
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do { \
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FLOATING_POINT_SET_PRECISION \
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FLOATING_POINT_SET_EXCEPTIONS
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#define FLOATING_POINT_RESTORE \
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FLOATING_POINT_RESTORE_EXCEPTIONS \
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FLOATING_POINT_RESTORE_PRECISION \
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} while (0);
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/* clang-format on */
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aom_codec_err_t aom_codec_encode(aom_codec_ctx_t *ctx, const aom_image_t *img,
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aom_codec_pts_t pts, unsigned long duration,
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aom_enc_frame_flags_t flags) {
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aom_codec_err_t res = AOM_CODEC_OK;
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if (!ctx || (img && !duration))
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res = AOM_CODEC_INVALID_PARAM;
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else if (!ctx->iface || !ctx->priv)
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res = AOM_CODEC_ERROR;
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else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER))
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res = AOM_CODEC_INCAPABLE;
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else {
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unsigned int num_enc = ctx->priv->enc.total_encoders;
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/* Execute in a normalized floating point environment, if the platform
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* requires it.
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*/
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FLOATING_POINT_INIT
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if (num_enc == 1)
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res =
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ctx->iface->enc.encode(get_alg_priv(ctx), img, pts, duration, flags);
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else {
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/* Multi-resolution encoding:
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* Encode multi-levels in reverse order. For example,
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* if mr_total_resolutions = 3, first encode level 2,
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* then encode level 1, and finally encode level 0.
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*/
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int i;
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ctx += num_enc - 1;
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if (img) img += num_enc - 1;
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for (i = num_enc - 1; i >= 0; i--) {
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if ((res = ctx->iface->enc.encode(get_alg_priv(ctx), img, pts, duration,
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flags)))
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break;
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ctx--;
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if (img) img--;
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}
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ctx++;
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}
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FLOATING_POINT_RESTORE
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}
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return SAVE_STATUS(ctx, res);
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}
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const aom_codec_cx_pkt_t *aom_codec_get_cx_data(aom_codec_ctx_t *ctx,
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aom_codec_iter_t *iter) {
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const aom_codec_cx_pkt_t *pkt = NULL;
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if (ctx) {
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if (!iter)
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ctx->err = AOM_CODEC_INVALID_PARAM;
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else if (!ctx->iface || !ctx->priv)
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ctx->err = AOM_CODEC_ERROR;
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else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER))
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ctx->err = AOM_CODEC_INCAPABLE;
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else
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pkt = ctx->iface->enc.get_cx_data(get_alg_priv(ctx), iter);
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}
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if (pkt && pkt->kind == AOM_CODEC_CX_FRAME_PKT) {
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// If the application has specified a destination area for the
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// compressed data, and the codec has not placed the data there,
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// and it fits, copy it.
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aom_codec_priv_t *const priv = ctx->priv;
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char *const dst_buf = (char *)priv->enc.cx_data_dst_buf.buf;
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if (dst_buf && pkt->data.raw.buf != dst_buf &&
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pkt->data.raw.sz + priv->enc.cx_data_pad_before +
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priv->enc.cx_data_pad_after <=
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priv->enc.cx_data_dst_buf.sz) {
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aom_codec_cx_pkt_t *modified_pkt = &priv->enc.cx_data_pkt;
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memcpy(dst_buf + priv->enc.cx_data_pad_before, pkt->data.raw.buf,
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pkt->data.raw.sz);
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*modified_pkt = *pkt;
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modified_pkt->data.raw.buf = dst_buf;
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modified_pkt->data.raw.sz +=
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priv->enc.cx_data_pad_before + priv->enc.cx_data_pad_after;
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pkt = modified_pkt;
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}
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if (dst_buf == pkt->data.raw.buf) {
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priv->enc.cx_data_dst_buf.buf = dst_buf + pkt->data.raw.sz;
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priv->enc.cx_data_dst_buf.sz -= pkt->data.raw.sz;
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}
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}
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return pkt;
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}
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aom_codec_err_t aom_codec_set_cx_data_buf(aom_codec_ctx_t *ctx,
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const aom_fixed_buf_t *buf,
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unsigned int pad_before,
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unsigned int pad_after) {
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if (!ctx || !ctx->priv) return AOM_CODEC_INVALID_PARAM;
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if (buf) {
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ctx->priv->enc.cx_data_dst_buf = *buf;
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ctx->priv->enc.cx_data_pad_before = pad_before;
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ctx->priv->enc.cx_data_pad_after = pad_after;
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} else {
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ctx->priv->enc.cx_data_dst_buf.buf = NULL;
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ctx->priv->enc.cx_data_dst_buf.sz = 0;
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ctx->priv->enc.cx_data_pad_before = 0;
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ctx->priv->enc.cx_data_pad_after = 0;
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}
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return AOM_CODEC_OK;
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}
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const aom_image_t *aom_codec_get_preview_frame(aom_codec_ctx_t *ctx) {
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aom_image_t *img = NULL;
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if (ctx) {
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if (!ctx->iface || !ctx->priv)
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ctx->err = AOM_CODEC_ERROR;
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else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER))
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ctx->err = AOM_CODEC_INCAPABLE;
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else if (!ctx->iface->enc.get_preview)
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ctx->err = AOM_CODEC_INCAPABLE;
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else
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img = ctx->iface->enc.get_preview(get_alg_priv(ctx));
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}
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return img;
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}
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aom_fixed_buf_t *aom_codec_get_global_headers(aom_codec_ctx_t *ctx) {
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aom_fixed_buf_t *buf = NULL;
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if (ctx) {
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if (!ctx->iface || !ctx->priv)
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ctx->err = AOM_CODEC_ERROR;
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else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER))
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ctx->err = AOM_CODEC_INCAPABLE;
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else if (!ctx->iface->enc.get_glob_hdrs)
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ctx->err = AOM_CODEC_INCAPABLE;
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else
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buf = ctx->iface->enc.get_glob_hdrs(get_alg_priv(ctx));
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}
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return buf;
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}
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aom_codec_err_t aom_codec_enc_config_set(aom_codec_ctx_t *ctx,
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const aom_codec_enc_cfg_t *cfg) {
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aom_codec_err_t res;
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if (!ctx || !ctx->iface || !ctx->priv || !cfg)
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res = AOM_CODEC_INVALID_PARAM;
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else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER))
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res = AOM_CODEC_INCAPABLE;
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else
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res = ctx->iface->enc.cfg_set(get_alg_priv(ctx), cfg);
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return SAVE_STATUS(ctx, res);
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}
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int aom_codec_pkt_list_add(struct aom_codec_pkt_list *list,
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const struct aom_codec_cx_pkt *pkt) {
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if (list->cnt < list->max) {
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list->pkts[list->cnt++] = *pkt;
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return 0;
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}
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return 1;
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}
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const aom_codec_cx_pkt_t *aom_codec_pkt_list_get(
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struct aom_codec_pkt_list *list, aom_codec_iter_t *iter) {
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const aom_codec_cx_pkt_t *pkt;
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if (!(*iter)) {
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*iter = list->pkts;
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}
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pkt = (const aom_codec_cx_pkt_t *)*iter;
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if ((size_t)(pkt - list->pkts) < list->cnt)
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*iter = pkt + 1;
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else
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pkt = NULL;
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return pkt;
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}
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