diff -r 000000000000 -r 6474c204b198 media/libvpx/vpx/src/vpx_decoder.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/media/libvpx/vpx/src/vpx_decoder.c Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,228 @@ +/* + * Copyright (c) 2010 The WebM project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + + +/*!\file + * \brief Provides the high level interface to wrap decoder algorithms. + * + */ +#include +#include "vpx/internal/vpx_codec_internal.h" + +#define SAVE_STATUS(ctx,var) (ctx?(ctx->err = var):var) + +vpx_codec_err_t vpx_codec_dec_init_ver(vpx_codec_ctx_t *ctx, + vpx_codec_iface_t *iface, + vpx_codec_dec_cfg_t *cfg, + vpx_codec_flags_t flags, + int ver) { + vpx_codec_err_t res; + + if (ver != VPX_DECODER_ABI_VERSION) + res = VPX_CODEC_ABI_MISMATCH; + else if (!ctx || !iface) + res = VPX_CODEC_INVALID_PARAM; + else if (iface->abi_version != VPX_CODEC_INTERNAL_ABI_VERSION) + res = VPX_CODEC_ABI_MISMATCH; + else if ((flags & VPX_CODEC_USE_XMA) && !(iface->caps & VPX_CODEC_CAP_XMA)) + res = VPX_CODEC_INCAPABLE; + else if ((flags & VPX_CODEC_USE_POSTPROC) && !(iface->caps & VPX_CODEC_CAP_POSTPROC)) + res = VPX_CODEC_INCAPABLE; + else if ((flags & VPX_CODEC_USE_ERROR_CONCEALMENT) && + !(iface->caps & VPX_CODEC_CAP_ERROR_CONCEALMENT)) + res = VPX_CODEC_INCAPABLE; + else if ((flags & VPX_CODEC_USE_INPUT_FRAGMENTS) && + !(iface->caps & VPX_CODEC_CAP_INPUT_FRAGMENTS)) + res = VPX_CODEC_INCAPABLE; + else if (!(iface->caps & VPX_CODEC_CAP_DECODER)) + res = VPX_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 = VPX_CODEC_OK; + + if (!(flags & VPX_CODEC_USE_XMA)) { + res = ctx->iface->init(ctx, NULL); + + if (res) { + ctx->err_detail = ctx->priv ? ctx->priv->err_detail : NULL; + vpx_codec_destroy(ctx); + } + + if (ctx->priv) + ctx->priv->iface = ctx->iface; + } + } + + return SAVE_STATUS(ctx, res); +} + + +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; + + /* Sanity checks */ + /* NULL data ptr allowed if data_sz is 0 too */ + if (!ctx || (!data && data_sz)) + res = VPX_CODEC_INVALID_PARAM; + else if (!ctx->iface || !ctx->priv) + res = VPX_CODEC_ERROR; + else { + res = ctx->iface->dec.decode(ctx->priv->alg_priv, data, data_sz, + user_priv, deadline); + } + + 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.u.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.u.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); +}