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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_HW_BASE_ENCODE_H
#define AVCODEC_HW_BASE_ENCODE_H
#define MAX_DPB_SIZE 16
#define MAX_PICTURE_REFERENCES 2
#define MAX_REORDER_DELAY 16
#define MAX_ASYNC_DEPTH 64
#define MAX_REFERENCE_LIST_NUM 2
static inline const char *ff_hw_base_encode_get_pictype_name(const int type)
{
const char * const picture_type_name[] = { "IDR", "I", "P", "B" };
return picture_type_name[type];
}
enum {
FF_HW_PICTURE_TYPE_IDR = 0,
FF_HW_PICTURE_TYPE_I = 1,
FF_HW_PICTURE_TYPE_P = 2,
FF_HW_PICTURE_TYPE_B = 3,
};
enum {
// Codec supports controlling the subdivision of pictures into slices.
FF_HW_FLAG_SLICE_CONTROL = 1 << 0,
// Codec only supports constant quality (no rate control).
FF_HW_FLAG_CONSTANT_QUALITY_ONLY = 1 << 1,
// Codec is intra-only.
FF_HW_FLAG_INTRA_ONLY = 1 << 2,
// Codec supports B-pictures.
FF_HW_FLAG_B_PICTURES = 1 << 3,
// Codec supports referencing B-pictures.
FF_HW_FLAG_B_PICTURE_REFERENCES = 1 << 4,
// Codec supports non-IDR key pictures (that is, key pictures do
// not necessarily empty the DPB).
FF_HW_FLAG_NON_IDR_KEY_PICTURES = 1 << 5,
};
typedef struct FFHWBaseEncodeContext {
const AVClass *class;
// Max number of frame buffered in encoder.
int async_depth;
} FFHWBaseEncodeContext;
#define HW_BASE_ENCODE_COMMON_OPTIONS \
{ "async_depth", "Maximum processing parallelism. " \
"Increase this to improve single channel performance.", \
OFFSET(common.base.async_depth), AV_OPT_TYPE_INT, \
{ .i64 = 2 }, 1, MAX_ASYNC_DEPTH, FLAGS }
#endif /* AVCODEC_HW_BASE_ENCODE_H */
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