3 * Copyright (c) 2001 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
30 #include "libavutil/pixdesc.h"
31 #include "libavutil/intreadwrite.h"
32 #include "libavutil/internal.h"
34 static av_cold int raw_encode_init(AVCodecContext *avctx)
36 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
38 avctx->coded_frame = av_frame_alloc();
39 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
40 avctx->bits_per_coded_sample = av_get_bits_per_pixel(desc);
42 avctx->codec_tag = avcodec_pix_fmt_to_codec_tag(avctx->pix_fmt);
46 static int raw_encode(AVCodecContext *avctx, AVPacket *pkt,
47 const AVFrame *frame, int *got_packet)
49 int ret = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height);
54 if ((ret = ff_alloc_packet2(avctx, pkt, ret)) < 0)
56 if ((ret = avpicture_layout((const AVPicture *)frame, avctx->pix_fmt, avctx->width,
57 avctx->height, pkt->data, pkt->size)) < 0)
60 if(avctx->codec_tag == AV_RL32("yuv2") && ret > 0 &&
61 avctx->pix_fmt == AV_PIX_FMT_YUYV422) {
63 for(x = 1; x < avctx->height*avctx->width*2; x += 2)
66 pkt->flags |= AV_PKT_FLAG_KEY;
71 static av_cold int raw_close(AVCodecContext *avctx)
73 av_frame_free(&avctx->coded_frame);
77 AVCodec ff_rawvideo_encoder = {
79 .long_name = NULL_IF_CONFIG_SMALL("raw video"),
80 .type = AVMEDIA_TYPE_VIDEO,
81 .id = AV_CODEC_ID_RAWVIDEO,
82 .init = raw_encode_init,
83 .encode2 = raw_encode,