mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/*
|
|
* Raw Video Encoder
|
|
* Copyright (c) 2001 Fabrice Bellard
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* Raw Video Encoder
|
|
*/
|
|
|
|
#include "avcodec.h"
|
|
#include "raw.h"
|
|
#include "internal.h"
|
|
#include "libavutil/pixdesc.h"
|
|
#include "libavutil/intreadwrite.h"
|
|
#include "libavutil/imgutils.h"
|
|
#include "libavutil/internal.h"
|
|
|
|
static av_cold int raw_encode_init(AVCodecContext *avctx)
|
|
{
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
|
|
|
|
#if FF_API_CODED_FRAME
|
|
FF_DISABLE_DEPRECATION_WARNINGS
|
|
avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
|
|
avctx->coded_frame->key_frame = 1;
|
|
FF_ENABLE_DEPRECATION_WARNINGS
|
|
#endif
|
|
avctx->bits_per_coded_sample = av_get_bits_per_pixel(desc);
|
|
if(!avctx->codec_tag)
|
|
avctx->codec_tag = avcodec_pix_fmt_to_codec_tag(avctx->pix_fmt);
|
|
return 0;
|
|
}
|
|
|
|
static int raw_encode(AVCodecContext *avctx, AVPacket *pkt,
|
|
const AVFrame *frame, int *got_packet)
|
|
{
|
|
int ret = av_image_get_buffer_size(avctx->pix_fmt,
|
|
avctx->width, avctx->height, 1);
|
|
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if ((ret = ff_alloc_packet(pkt, ret)) < 0)
|
|
return ret;
|
|
if ((ret = av_image_copy_to_buffer(pkt->data, pkt->size,
|
|
frame->data, frame->linesize,
|
|
frame->format,
|
|
frame->width, frame->height, 1)) < 0)
|
|
return ret;
|
|
|
|
if(avctx->codec_tag == AV_RL32("yuv2") && ret > 0 &&
|
|
avctx->pix_fmt == AV_PIX_FMT_YUYV422) {
|
|
int x;
|
|
for(x = 1; x < avctx->height*avctx->width*2; x += 2)
|
|
pkt->data[x] ^= 0x80;
|
|
}
|
|
pkt->flags |= AV_PKT_FLAG_KEY;
|
|
*got_packet = 1;
|
|
return 0;
|
|
}
|
|
|
|
AVCodec ff_rawvideo_encoder = {
|
|
.name = "rawvideo",
|
|
.long_name = NULL_IF_CONFIG_SMALL("raw video"),
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_RAWVIDEO,
|
|
.init = raw_encode_init,
|
|
.encode2 = raw_encode,
|
|
};
|