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/*! @file parameters.h
*
* @brief Declare a data structure for holding a table of parameters used
* during decoding to override the default decoding behavior.
* The decoder can be initialized using the dimensions of the encoded frame
* obtained from an external source such as a media container and the pixel
* format of the decoded frame. The encoded sample will be decoded to the
* dimensions of the encoded frame without at the full encoded resolution
* without scaling. The decoded frames will have the specified pixel format,
* but this assumes that the encoded dimensions used during initialization
* are the same as the actual encoded dimensions and that the pixel format of
* the decoded frames is a valid pixel format.
*
* (C) Copyright 2018 GoPro Inc (http://gopro.com/).
*
* Licensed under either:
* - Apache License, Version 2.0, http://www.apache.org/licenses/LICENSE-2.0
* - MIT license, http://opensource.org/licenses/MIT
* at your option.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef PARAMETERS_H
#define PARAMETERS_H
#include "vc5_decoder.h"
/*!
@brief Declaration of a data structure for passing decoding parameters to the decoder
*/
typedef struct _decoder_parameters
{
uint32_t version; //!< Version number for this definition of the parameters
uint32_t enabled_parts; //!< Parts of the VC-5 standard that are enabled
#if VC5_ENABLED_PART(VC5_PART_LAYERS)
int layer_count; //!< Number of layers in the sample
bool progressive; //!< True if the frame is progressive
bool top_field_first; //!< True if interlaced with top field first
#endif
#if VC5_ENABLED_PART(VC5_PART_SECTIONS)
bool section_flag; //!< True if decoding sections element in the bitstream
#endif
//! Dimensions and format of the output of the image unpacking process
struct _input_parameters
{
DIMENSION width;
DIMENSION height;
// PIXEL_FORMAT format;
} input; //! Dimensions and format of the unpacked image
#if VC5_ENABLED_PART(VC5_PART_IMAGE_FORMATS)
//! Dimensions and format of the output of the decoding process
struct _decoded_parameters
{
DIMENSION width;
DIMENSION height;
PIXEL_FORMAT format;
} decoded; //! Decoded image dimensions and pixel format
#endif
#if VC5_ENABLED_PART(VC5_PART_ELEMENTARY)
//! Dimensions and format of the output of the image repacking process
struct _output_parameters
{
DIMENSION width;
DIMENSION height;
PIXEL_FORMAT format;
} output;
#endif
#if VC5_ENABLED_PART(VC5_PART_IMAGE_FORMATS)
//! Dimensions and format of the displayable image
struct _display_parameters
{
DIMENSION width;
DIMENSION height;
PIXEL_FORMAT format;
} display;
#endif
#if VC5_ENABLED_PART(VC5_PART_METADATA)
//! Metadata that controls decoding
METADATA metadata;
#endif
//! Flag that controls verbose output
bool verbose_flag;
GPR_RGB_RESOLUTION rgb_resolution;
int rgb_bits;
gpr_rgb_gain rgb_gain;
gpr_allocator allocator;
} DECODER_PARAMETERS;
#ifdef __cplusplus
extern "C" {
#endif
CODEC_ERROR InitDecoderParameters(DECODER_PARAMETERS *parameters);
#ifdef __cplusplus
}
#endif
#endif // PARAMETERS_H
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