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Diffstat (limited to '')
-rw-r--r-- | third_party/aom/aom/src/aom_encoder.c | 333 |
1 files changed, 333 insertions, 0 deletions
diff --git a/third_party/aom/aom/src/aom_encoder.c b/third_party/aom/aom/src/aom_encoder.c new file mode 100644 index 0000000000..70e0b75bcd --- /dev/null +++ b/third_party/aom/aom/src/aom_encoder.c @@ -0,0 +1,333 @@ +/* + * Copyright (c) 2016, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +/*!\file + * \brief Provides the high level interface to wrap encoder algorithms. + * + */ +#include "config/aom_config.h" + +#if HAVE_FEXCEPT +#ifndef _GNU_SOURCE +#define _GNU_SOURCE +#endif +#include <fenv.h> +#endif + +#include <limits.h> +#include <string.h> + +#include "aom/aom_encoder.h" +#include "aom/internal/aom_codec_internal.h" + +#define SAVE_STATUS(ctx, var) (ctx ? (ctx->err = var) : var) + +static aom_codec_alg_priv_t *get_alg_priv(aom_codec_ctx_t *ctx) { + return (aom_codec_alg_priv_t *)ctx->priv; +} + +aom_codec_err_t aom_codec_enc_init_ver(aom_codec_ctx_t *ctx, + aom_codec_iface_t *iface, + const aom_codec_enc_cfg_t *cfg, + aom_codec_flags_t flags, int ver) { + aom_codec_err_t res; + // The value of AOM_ENCODER_ABI_VERSION in libaom v3.0.0 and v3.1.0 - v3.1.3. + // + // We are compatible with these older libaom releases. AOM_ENCODER_ABI_VERSION + // was incremented after these releases for two reasons: + // 1. AOM_ENCODER_ABI_VERSION takes contribution from + // AOM_EXT_PART_ABI_VERSION. The external partition API is still + // experimental, so it should not be considered as part of the stable ABI. + // fd9ed8366 External partition: Define APIs + // https://aomedia-review.googlesource.com/c/aom/+/135663 + // 2. As a way to detect the presence of speeds 7-9 in all-intra mode. I (wtc) + // suggested this change because I misunderstood how + // AOM_ENCODER_ABI_VERSION was used. + // bbdfa68d1 AllIntra: Redefine all-intra mode speed features for speed 7+ + // https://aomedia-review.googlesource.com/c/aom/+/140624 + const int aom_encoder_abi_version_25 = 25; + + // TODO(bug aomedia:3228): Remove the check for aom_encoder_abi_version_25 in + // libaom v4.0.0. + if (ver != AOM_ENCODER_ABI_VERSION && ver != aom_encoder_abi_version_25) + res = AOM_CODEC_ABI_MISMATCH; + else if (!ctx || !iface || !cfg) + res = AOM_CODEC_INVALID_PARAM; + else if (iface->abi_version != AOM_CODEC_INTERNAL_ABI_VERSION) + res = AOM_CODEC_ABI_MISMATCH; + else if (!(iface->caps & AOM_CODEC_CAP_ENCODER)) + res = AOM_CODEC_INCAPABLE; + else if ((flags & AOM_CODEC_USE_PSNR) && !(iface->caps & AOM_CODEC_CAP_PSNR)) + res = AOM_CODEC_INCAPABLE; + else if ((flags & AOM_CODEC_USE_HIGHBITDEPTH) && + !(iface->caps & AOM_CODEC_CAP_HIGHBITDEPTH)) { + res = AOM_CODEC_INCAPABLE; + } else if (cfg->g_bit_depth > 8 && + (flags & AOM_CODEC_USE_HIGHBITDEPTH) == 0) { + res = AOM_CODEC_INVALID_PARAM; + ctx->err_detail = + "High bit-depth used without the AOM_CODEC_USE_HIGHBITDEPTH flag."; + } else { + ctx->iface = iface; + ctx->name = iface->name; + ctx->priv = NULL; + ctx->init_flags = flags; + ctx->config.enc = cfg; + res = ctx->iface->init(ctx); + + if (res) { + // IMPORTANT: ctx->priv->err_detail must be null or point to a string + // that remains valid after ctx->priv is destroyed, such as a C string + // literal. This makes it safe to call aom_codec_error_detail() after + // aom_codec_enc_init_ver() failed. + ctx->err_detail = ctx->priv ? ctx->priv->err_detail : NULL; + aom_codec_destroy(ctx); + } + } + + return SAVE_STATUS(ctx, res); +} + +aom_codec_err_t aom_codec_enc_config_default(aom_codec_iface_t *iface, + aom_codec_enc_cfg_t *cfg, + unsigned int usage) { + aom_codec_err_t res; + + if (!iface || !cfg) + res = AOM_CODEC_INVALID_PARAM; + else if (!(iface->caps & AOM_CODEC_CAP_ENCODER)) + res = AOM_CODEC_INCAPABLE; + else { + res = AOM_CODEC_INVALID_PARAM; + + for (int i = 0; i < iface->enc.cfg_count; ++i) { + if (iface->enc.cfgs[i].g_usage == usage) { + *cfg = iface->enc.cfgs[i]; + res = AOM_CODEC_OK; + /* default values */ + memset(&cfg->encoder_cfg, 0, sizeof(cfg->encoder_cfg)); + cfg->encoder_cfg.super_block_size = 0; // Dynamic + cfg->encoder_cfg.max_partition_size = 128; + cfg->encoder_cfg.min_partition_size = 4; + cfg->encoder_cfg.disable_trellis_quant = 3; + break; + } + } + } + return res; +} + +#if AOM_ARCH_X86 || AOM_ARCH_X86_64 +/* On X86, disable the x87 unit's internal 80 bit precision for better + * consistency with the SSE unit's 64 bit precision. + */ +#include "aom_ports/x86.h" +#define FLOATING_POINT_SET_PRECISION \ + unsigned short x87_orig_mode = x87_set_double_precision(); +#define FLOATING_POINT_RESTORE_PRECISION x87_set_control_word(x87_orig_mode); +#else +#define FLOATING_POINT_SET_PRECISION +#define FLOATING_POINT_RESTORE_PRECISION +#endif // AOM_ARCH_X86 || AOM_ARCH_X86_64 + +#if HAVE_FEXCEPT && CONFIG_DEBUG +#define FLOATING_POINT_SET_EXCEPTIONS \ + const int float_excepts = \ + feenableexcept(FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW); +#define FLOATING_POINT_RESTORE_EXCEPTIONS \ + if (float_excepts != -1) { \ + fedisableexcept(FE_ALL_EXCEPT); \ + feenableexcept(float_excepts); \ + } +#else +#define FLOATING_POINT_SET_EXCEPTIONS +#define FLOATING_POINT_RESTORE_EXCEPTIONS +#endif // HAVE_FEXCEPT && CONFIG_DEBUG + +/* clang-format off */ +#define FLOATING_POINT_INIT \ + do { \ + FLOATING_POINT_SET_PRECISION \ + FLOATING_POINT_SET_EXCEPTIONS + +#define FLOATING_POINT_RESTORE \ + FLOATING_POINT_RESTORE_EXCEPTIONS \ + FLOATING_POINT_RESTORE_PRECISION \ + } while (0); +/* clang-format on */ + +aom_codec_err_t aom_codec_encode(aom_codec_ctx_t *ctx, const aom_image_t *img, + aom_codec_pts_t pts, unsigned long duration, + aom_enc_frame_flags_t flags) { + aom_codec_err_t res = AOM_CODEC_OK; + + if (!ctx || (img && !duration)) + res = AOM_CODEC_INVALID_PARAM; + else if (!ctx->iface || !ctx->priv) + res = AOM_CODEC_ERROR; + else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER)) + res = AOM_CODEC_INCAPABLE; + else if (img && ((img->fmt & AOM_IMG_FMT_HIGHBITDEPTH) != 0) != + ((ctx->init_flags & AOM_CODEC_USE_HIGHBITDEPTH) != 0)) { + res = AOM_CODEC_INVALID_PARAM; + } else { + /* Execute in a normalized floating point environment, if the platform + * requires it. + */ + FLOATING_POINT_INIT + res = ctx->iface->enc.encode(get_alg_priv(ctx), img, pts, duration, flags); + FLOATING_POINT_RESTORE + } + + return SAVE_STATUS(ctx, res); +} + +const aom_codec_cx_pkt_t *aom_codec_get_cx_data(aom_codec_ctx_t *ctx, + aom_codec_iter_t *iter) { + const aom_codec_cx_pkt_t *pkt = NULL; + + if (ctx) { + if (!iter) + ctx->err = AOM_CODEC_INVALID_PARAM; + else if (!ctx->iface || !ctx->priv) + ctx->err = AOM_CODEC_ERROR; + else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER)) + ctx->err = AOM_CODEC_INCAPABLE; + else + pkt = ctx->iface->enc.get_cx_data(get_alg_priv(ctx), iter); + } + + if (pkt && pkt->kind == AOM_CODEC_CX_FRAME_PKT) { + // If the application has specified a destination area for the + // compressed data, and the codec has not placed the data there, + // and it fits, copy it. + aom_codec_priv_t *const priv = ctx->priv; + char *const dst_buf = (char *)priv->enc.cx_data_dst_buf.buf; + + if (dst_buf && pkt->data.raw.buf != dst_buf && + pkt->data.raw.sz + priv->enc.cx_data_pad_before + + priv->enc.cx_data_pad_after <= + priv->enc.cx_data_dst_buf.sz) { + aom_codec_cx_pkt_t *modified_pkt = &priv->enc.cx_data_pkt; + + memcpy(dst_buf + priv->enc.cx_data_pad_before, pkt->data.raw.buf, + pkt->data.raw.sz); + *modified_pkt = *pkt; + modified_pkt->data.raw.buf = dst_buf; + modified_pkt->data.raw.sz += + priv->enc.cx_data_pad_before + priv->enc.cx_data_pad_after; + pkt = modified_pkt; + } + + if (dst_buf == pkt->data.raw.buf) { + priv->enc.cx_data_dst_buf.buf = dst_buf + pkt->data.raw.sz; + priv->enc.cx_data_dst_buf.sz -= pkt->data.raw.sz; + } + } + + return pkt; +} + +aom_codec_err_t aom_codec_set_cx_data_buf(aom_codec_ctx_t *ctx, + const aom_fixed_buf_t *buf, + unsigned int pad_before, + unsigned int pad_after) { + if (!ctx || !ctx->priv) return AOM_CODEC_INVALID_PARAM; + + if (buf) { + ctx->priv->enc.cx_data_dst_buf = *buf; + ctx->priv->enc.cx_data_pad_before = pad_before; + ctx->priv->enc.cx_data_pad_after = pad_after; + } else { + ctx->priv->enc.cx_data_dst_buf.buf = NULL; + ctx->priv->enc.cx_data_dst_buf.sz = 0; + ctx->priv->enc.cx_data_pad_before = 0; + ctx->priv->enc.cx_data_pad_after = 0; + } + + return AOM_CODEC_OK; +} + +const aom_image_t *aom_codec_get_preview_frame(aom_codec_ctx_t *ctx) { + aom_image_t *img = NULL; + + if (ctx) { + if (!ctx->iface || !ctx->priv) + ctx->err = AOM_CODEC_ERROR; + else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER)) + ctx->err = AOM_CODEC_INCAPABLE; + else if (!ctx->iface->enc.get_preview) + ctx->err = AOM_CODEC_INCAPABLE; + else + img = ctx->iface->enc.get_preview(get_alg_priv(ctx)); + } + + return img; +} + +aom_fixed_buf_t *aom_codec_get_global_headers(aom_codec_ctx_t *ctx) { + aom_fixed_buf_t *buf = NULL; + + if (ctx) { + if (!ctx->iface || !ctx->priv) + ctx->err = AOM_CODEC_ERROR; + else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER)) + ctx->err = AOM_CODEC_INCAPABLE; + else if (!ctx->iface->enc.get_glob_hdrs) + ctx->err = AOM_CODEC_INCAPABLE; + else + buf = ctx->iface->enc.get_glob_hdrs(get_alg_priv(ctx)); + } + + return buf; +} + +aom_codec_err_t aom_codec_enc_config_set(aom_codec_ctx_t *ctx, + const aom_codec_enc_cfg_t *cfg) { + aom_codec_err_t res; + + if (!ctx || !ctx->iface || !ctx->priv || !cfg) + res = AOM_CODEC_INVALID_PARAM; + else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER)) + res = AOM_CODEC_INCAPABLE; + else + res = ctx->iface->enc.cfg_set(get_alg_priv(ctx), cfg); + + return SAVE_STATUS(ctx, res); +} + +int aom_codec_pkt_list_add(struct aom_codec_pkt_list *list, + const struct aom_codec_cx_pkt *pkt) { + if (list->cnt < list->max) { + list->pkts[list->cnt++] = *pkt; + return 0; + } + + return 1; +} + +const aom_codec_cx_pkt_t *aom_codec_pkt_list_get( + struct aom_codec_pkt_list *list, aom_codec_iter_t *iter) { + const aom_codec_cx_pkt_t *pkt; + + if (!(*iter)) { + *iter = list->pkts; + } + + pkt = (const aom_codec_cx_pkt_t *)*iter; + + if ((size_t)(pkt - list->pkts) < list->cnt) + *iter = pkt + 1; + else + pkt = NULL; + + return pkt; +} |