| /* |
| * Raw Video Encoder |
| * Copyright (c) 2001 Fabrice Bellard |
| * |
| * 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 |
| */ |
| |
| /** |
| * @file |
| * Raw Video Encoder |
| */ |
| |
| #include "avcodec.h" |
| #include "raw.h" |
| #include "internal.h" |
| #include "libavutil/pixdesc.h" |
| #include "libavutil/intreadwrite.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); |
| |
| avctx->coded_frame = av_frame_alloc(); |
| avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I; |
| 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 = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height); |
| |
| if (ret < 0) |
| return ret; |
| |
| if ((ret = ff_alloc_packet(pkt, ret)) < 0) |
| return ret; |
| if ((ret = avpicture_layout((const AVPicture *)frame, avctx->pix_fmt, avctx->width, |
| avctx->height, pkt->data, pkt->size)) < 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; |
| } |
| |
| static av_cold int raw_close(AVCodecContext *avctx) |
| { |
| av_frame_free(&avctx->coded_frame); |
| 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, |
| .close = raw_close, |
| }; |