diff options
Diffstat (limited to 'media/libaom/src/aom/src/aom_decoder.c')
| -rw-r--r-- | media/libaom/src/aom/src/aom_decoder.c | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/media/libaom/src/aom/src/aom_decoder.c b/media/libaom/src/aom/src/aom_decoder.c new file mode 100644 index 000000000..8c9111faf --- /dev/null +++ b/media/libaom/src/aom/src/aom_decoder.c @@ -0,0 +1,180 @@ +/* + * 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 decoder algorithms. + * + */ +#include <string.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_dec_init_ver(aom_codec_ctx_t *ctx, + aom_codec_iface_t *iface, + const aom_codec_dec_cfg_t *cfg, + aom_codec_flags_t flags, int ver) { + aom_codec_err_t res; + + if (ver != AOM_DECODER_ABI_VERSION) + res = AOM_CODEC_ABI_MISMATCH; + else if (!ctx || !iface) + res = AOM_CODEC_INVALID_PARAM; + else if (iface->abi_version != AOM_CODEC_INTERNAL_ABI_VERSION) + res = AOM_CODEC_ABI_MISMATCH; + else if ((flags & AOM_CODEC_USE_POSTPROC) && + !(iface->caps & AOM_CODEC_CAP_POSTPROC)) + res = AOM_CODEC_INCAPABLE; + else if ((flags & AOM_CODEC_USE_INPUT_FRAGMENTS) && + !(iface->caps & AOM_CODEC_CAP_INPUT_FRAGMENTS)) + res = AOM_CODEC_INCAPABLE; + else if (!(iface->caps & AOM_CODEC_CAP_DECODER)) + res = AOM_CODEC_INCAPABLE; + else { + memset(ctx, 0, sizeof(*ctx)); + ctx->iface = iface; + ctx->name = iface->name; + ctx->priv = NULL; + ctx->init_flags = flags; + ctx->config.dec = cfg; + + res = ctx->iface->init(ctx, NULL); + if (res) { + 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_peek_stream_info(aom_codec_iface_t *iface, + const uint8_t *data, size_t data_sz, + aom_codec_stream_info_t *si) { + aom_codec_err_t res; + + if (!iface || !data || !data_sz || !si) { + res = AOM_CODEC_INVALID_PARAM; + } else { + /* Set default/unknown values */ + si->w = 0; + si->h = 0; + + res = iface->dec.peek_si(data, data_sz, si); + } + + return res; +} + +aom_codec_err_t aom_codec_get_stream_info(aom_codec_ctx_t *ctx, + aom_codec_stream_info_t *si) { + aom_codec_err_t res; + + if (!ctx || !si) { + res = AOM_CODEC_INVALID_PARAM; + } else if (!ctx->iface || !ctx->priv) { + res = AOM_CODEC_ERROR; + } else { + /* Set default/unknown values */ + si->w = 0; + si->h = 0; + + res = ctx->iface->dec.get_si(get_alg_priv(ctx), si); + } + + return SAVE_STATUS(ctx, res); +} + +aom_codec_err_t aom_codec_decode(aom_codec_ctx_t *ctx, const uint8_t *data, + size_t data_sz, void *user_priv) { + aom_codec_err_t res; + + if (!ctx) + res = AOM_CODEC_INVALID_PARAM; + else if (!ctx->iface || !ctx->priv) + res = AOM_CODEC_ERROR; + else { + res = ctx->iface->dec.decode(get_alg_priv(ctx), data, data_sz, user_priv); + } + + return SAVE_STATUS(ctx, res); +} + +aom_image_t *aom_codec_get_frame(aom_codec_ctx_t *ctx, aom_codec_iter_t *iter) { + aom_image_t *img; + + if (!ctx || !iter || !ctx->iface || !ctx->priv) + img = NULL; + else + img = ctx->iface->dec.get_frame(get_alg_priv(ctx), iter); + + return img; +} + +aom_codec_err_t aom_codec_register_put_frame_cb(aom_codec_ctx_t *ctx, + aom_codec_put_frame_cb_fn_t cb, + void *user_priv) { + aom_codec_err_t res; + + if (!ctx || !cb) + res = AOM_CODEC_INVALID_PARAM; + else if (!ctx->iface || !ctx->priv || + !(ctx->iface->caps & AOM_CODEC_CAP_PUT_FRAME)) + res = AOM_CODEC_ERROR; + else { + ctx->priv->dec.put_frame_cb.u.put_frame = cb; + ctx->priv->dec.put_frame_cb.user_priv = user_priv; + res = AOM_CODEC_OK; + } + + return SAVE_STATUS(ctx, res); +} + +aom_codec_err_t aom_codec_register_put_slice_cb(aom_codec_ctx_t *ctx, + aom_codec_put_slice_cb_fn_t cb, + void *user_priv) { + aom_codec_err_t res; + + if (!ctx || !cb) + res = AOM_CODEC_INVALID_PARAM; + else if (!ctx->iface || !ctx->priv || + !(ctx->iface->caps & AOM_CODEC_CAP_PUT_SLICE)) + res = AOM_CODEC_ERROR; + else { + ctx->priv->dec.put_slice_cb.u.put_slice = cb; + ctx->priv->dec.put_slice_cb.user_priv = user_priv; + res = AOM_CODEC_OK; + } + + return SAVE_STATUS(ctx, res); +} + +aom_codec_err_t aom_codec_set_frame_buffer_functions( + aom_codec_ctx_t *ctx, aom_get_frame_buffer_cb_fn_t cb_get, + aom_release_frame_buffer_cb_fn_t cb_release, void *cb_priv) { + aom_codec_err_t res; + + if (!ctx || !cb_get || !cb_release) { + res = AOM_CODEC_INVALID_PARAM; + } else if (!ctx->iface || !ctx->priv || + !(ctx->iface->caps & AOM_CODEC_CAP_EXTERNAL_FRAME_BUFFER)) { + res = AOM_CODEC_ERROR; + } else { + res = ctx->iface->dec.set_fb_fn(get_alg_priv(ctx), cb_get, cb_release, + cb_priv); + } + + return SAVE_STATUS(ctx, res); +} |