diff options
Diffstat (limited to 'vpx/src/vpx_decoder.c')
| -rw-r--r-- | vpx/src/vpx_decoder.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/vpx/src/vpx_decoder.c b/vpx/src/vpx_decoder.c new file mode 100644 index 000000000..8257f89b2 --- /dev/null +++ b/vpx/src/vpx_decoder.c @@ -0,0 +1,201 @@ +/* + * Copyright (c) 2010 The VP8 project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license and patent + * grant that can be found in the LICENSE file in the root of the source + * tree. All contributing project authors may be found in the AUTHORS + * file in the root of the source tree. + */ + + +/*!\file vpx_decoder.c + * \brief Provides the high level interface to wrap decoder algorithms. + * + */ +#include <stdlib.h> +#include "vpx/internal/vpx_codec_internal.h" + +#define SAVE_STATUS(ctx,var) (ctx?(ctx->err = var):var) + +vpx_codec_err_t vpx_codec_peek_stream_info(vpx_codec_iface_t *iface, + const uint8_t *data, + unsigned int data_sz, + vpx_codec_stream_info_t *si) +{ + vpx_codec_err_t res; + + if (!iface || !data || !data_sz || !si + || si->sz < sizeof(vpx_codec_stream_info_t)) + res = VPX_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; +} + + +vpx_codec_err_t vpx_codec_get_stream_info(vpx_codec_ctx_t *ctx, + vpx_codec_stream_info_t *si) +{ + vpx_codec_err_t res; + + if (!ctx || !si || si->sz < sizeof(vpx_codec_stream_info_t)) + res = VPX_CODEC_INVALID_PARAM; + else if (!ctx->iface || !ctx->priv) + res = VPX_CODEC_ERROR; + else + { + /* Set default/unknown values */ + si->w = 0; + si->h = 0; + + res = ctx->iface->dec.get_si(ctx->priv->alg_priv, si); + } + + return SAVE_STATUS(ctx, res); +} + + +vpx_codec_err_t vpx_codec_decode(vpx_codec_ctx_t *ctx, + const uint8_t *data, + unsigned int data_sz, + void *user_priv, + long deadline) +{ + vpx_codec_err_t res; + + if (!ctx || !data || !data_sz) + res = VPX_CODEC_INVALID_PARAM; + else if (!ctx->iface || !ctx->priv) + res = VPX_CODEC_ERROR; + +#if CONFIG_EVAL_LIMIT + else if (ctx->priv->eval_counter >= 500) + { + ctx->priv->err_detail = "Evaluation limit exceeded."; + res = VPX_CODEC_ERROR; + } + +#endif + else + { + res = ctx->iface->dec.decode(ctx->priv->alg_priv, data, data_sz, + user_priv, deadline); +#if CONFIG_EVAL_LIMIT + ctx->priv->eval_counter++; +#endif + } + + return SAVE_STATUS(ctx, res); +} + +vpx_image_t *vpx_codec_get_frame(vpx_codec_ctx_t *ctx, + vpx_codec_iter_t *iter) +{ + vpx_image_t *img; + + if (!ctx || !iter || !ctx->iface || !ctx->priv) + img = NULL; + else + img = ctx->iface->dec.get_frame(ctx->priv->alg_priv, iter); + + return img; +} + + +vpx_codec_err_t vpx_codec_register_put_frame_cb(vpx_codec_ctx_t *ctx, + vpx_codec_put_frame_cb_fn_t cb, + void *user_priv) +{ + vpx_codec_err_t res; + + if (!ctx || !cb) + res = VPX_CODEC_INVALID_PARAM; + else if (!ctx->iface || !ctx->priv + || !(ctx->iface->caps & VPX_CODEC_CAP_PUT_FRAME)) + res = VPX_CODEC_ERROR; + else + { + ctx->priv->dec.put_frame_cb.put_frame = cb; + ctx->priv->dec.put_frame_cb.user_priv = user_priv; + res = VPX_CODEC_OK; + } + + return SAVE_STATUS(ctx, res); +} + + +vpx_codec_err_t vpx_codec_register_put_slice_cb(vpx_codec_ctx_t *ctx, + vpx_codec_put_slice_cb_fn_t cb, + void *user_priv) +{ + vpx_codec_err_t res; + + if (!ctx || !cb) + res = VPX_CODEC_INVALID_PARAM; + else if (!ctx->iface || !ctx->priv + || !(ctx->iface->caps & VPX_CODEC_CAP_PUT_FRAME)) + res = VPX_CODEC_ERROR; + else + { + ctx->priv->dec.put_slice_cb.put_slice = cb; + ctx->priv->dec.put_slice_cb.user_priv = user_priv; + res = VPX_CODEC_OK; + } + + return SAVE_STATUS(ctx, res); +} + + +vpx_codec_err_t vpx_codec_get_mem_map(vpx_codec_ctx_t *ctx, + vpx_codec_mmap_t *mmap, + vpx_codec_iter_t *iter) +{ + vpx_codec_err_t res = VPX_CODEC_OK; + + if (!ctx || !mmap || !iter || !ctx->iface) + res = VPX_CODEC_INVALID_PARAM; + else if (!(ctx->iface->caps & VPX_CODEC_CAP_XMA)) + res = VPX_CODEC_ERROR; + else + res = ctx->iface->get_mmap(ctx, mmap, iter); + + return SAVE_STATUS(ctx, res); +} + + +vpx_codec_err_t vpx_codec_set_mem_map(vpx_codec_ctx_t *ctx, + vpx_codec_mmap_t *mmap, + unsigned int num_maps) +{ + vpx_codec_err_t res = VPX_CODEC_MEM_ERROR; + + if (!ctx || !mmap || !ctx->iface) + res = VPX_CODEC_INVALID_PARAM; + else if (!(ctx->iface->caps & VPX_CODEC_CAP_XMA)) + res = VPX_CODEC_ERROR; + else + { + unsigned int i; + + for (i = 0; i < num_maps; i++, mmap++) + { + if (!mmap->base) + break; + + /* Everything look ok, set the mmap in the decoder */ + res = ctx->iface->set_mmap(ctx, mmap); + + if (res) + break; + } + } + + return SAVE_STATUS(ctx, res); +} |