mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
991d417692
This is intended to replace the deprecated the AV_FRAME_DATA_QP_TABLE* API and extend it to a wider range of codecs. In the future, it may also be extended to support other encoding parameters such as motion vectors. Additional changes by Anton Khirnov <anton@khirnov.net> with suggestions by Lynne <dev@lynne.ee>. Signed-off-by: Juan De León <juandl@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Anton Khirnov <anton@khirnov.net>
80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
/*
|
|
* 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
|
|
*/
|
|
|
|
#include <limits.h>
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#include "buffer.h"
|
|
#include "common.h"
|
|
#include "frame.h"
|
|
#include "mem.h"
|
|
#include "video_enc_params.h"
|
|
|
|
AVVideoEncParams *av_video_enc_params_alloc(enum AVVideoEncParamsType type,
|
|
unsigned int nb_blocks, size_t *out_size)
|
|
{
|
|
AVVideoEncParams *par;
|
|
size_t size;
|
|
|
|
size = sizeof(*par);
|
|
if (nb_blocks > SIZE_MAX / sizeof(AVVideoBlockParams) ||
|
|
nb_blocks * sizeof(AVVideoBlockParams) > SIZE_MAX - size)
|
|
return NULL;
|
|
size += sizeof(AVVideoBlockParams) * nb_blocks;
|
|
|
|
par = av_mallocz(size);
|
|
if (!par)
|
|
return NULL;
|
|
|
|
par->type = type;
|
|
par->nb_blocks = nb_blocks;
|
|
par->block_size = sizeof(AVVideoBlockParams);
|
|
par->blocks_offset = sizeof(*par);
|
|
|
|
if (out_size)
|
|
*out_size = size;
|
|
|
|
return par;
|
|
}
|
|
|
|
AVVideoEncParams*
|
|
av_video_enc_params_create_side_data(AVFrame *frame, enum AVVideoEncParamsType type,
|
|
unsigned int nb_blocks)
|
|
{
|
|
AVBufferRef *buf;
|
|
AVVideoEncParams *par;
|
|
size_t size;
|
|
|
|
par = av_video_enc_params_alloc(type, nb_blocks, &size);
|
|
if (!par)
|
|
return NULL;
|
|
buf = av_buffer_create((uint8_t *)par, size, NULL, NULL, 0);
|
|
if (!buf) {
|
|
av_freep(&par);
|
|
return NULL;
|
|
}
|
|
|
|
if (!av_frame_new_side_data_from_buf(frame, AV_FRAME_DATA_VIDEO_ENC_PARAMS, buf)) {
|
|
av_buffer_unref(&buf);
|
|
return NULL;
|
|
}
|
|
|
|
return par;
|
|
}
|