repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * Raw Video Encoder | |
| 3 | * Copyright (c) 2001 Fabrice Bellard | |
| 4 | * | |
| 5 | * This file is part of FFmpeg. | |
| 6 | * | |
| 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. | |
| 11 | * | |
| 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. | |
| 16 | * | |
| 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 | |
| 20 | */ | |
| 21 | ||
| 22 | /** | |
| 23 | * @file | |
| 24 | * Raw Video Encoder | |
| 25 | */ | |
| 26 | ||
| 27 | #include "avcodec.h" | |
| 28 | #include "raw.h" | |
| 29 | #include "internal.h" | |
| 30 | #include "libavutil/pixdesc.h" | |
| 31 | #include "libavutil/intreadwrite.h" | |
| 32 | #include "libavutil/internal.h" | |
| 33 | ||
| 34 | static av_cold int raw_encode_init(AVCodecContext *avctx) | |
| 35 | { | |
| 36 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt); | |
| 37 | ||
| 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); | |
| 41 | if(!avctx->codec_tag) | |
| 42 | avctx->codec_tag = avcodec_pix_fmt_to_codec_tag(avctx->pix_fmt); | |
| 43 | return 0; | |
| 44 | } | |
| 45 | ||
| 46 | static int raw_encode(AVCodecContext *avctx, AVPacket *pkt, | |
| 47 | const AVFrame *frame, int *got_packet) | |
| 48 | { | |
| 49 | int ret = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height); | |
| 50 | ||
| 51 | if (ret < 0) | |
| 52 | return ret; | |
| 53 | ||
| 54 | if ((ret = ff_alloc_packet2(avctx, pkt, ret)) < 0) | |
| 55 | return ret; | |
| 56 | if ((ret = avpicture_layout((const AVPicture *)frame, avctx->pix_fmt, avctx->width, | |
| 57 | avctx->height, pkt->data, pkt->size)) < 0) | |
| 58 | return ret; | |
| 59 | ||
| 60 | if(avctx->codec_tag == AV_RL32("yuv2") && ret > 0 && | |
| 61 | avctx->pix_fmt == AV_PIX_FMT_YUYV422) { | |
| 62 | int x; | |
| 63 | for(x = 1; x < avctx->height*avctx->width*2; x += 2) | |
| 64 | pkt->data[x] ^= 0x80; | |
| 65 | } | |
| 66 | pkt->flags |= AV_PKT_FLAG_KEY; | |
| 67 | *got_packet = 1; | |
| 68 | return 0; | |
| 69 | } | |
| 70 | ||
| 71 | static av_cold int raw_close(AVCodecContext *avctx) | |
| 72 | { | |
| 73 | av_frame_free(&avctx->coded_frame); | |
| 74 | return 0; | |
| 75 | } | |
| 76 | ||
| 77 | AVCodec ff_rawvideo_encoder = { | |
| 78 | .name = "rawvideo", | |
| 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, | |
| 84 | .close = raw_close, | |
| 85 | }; |