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93 lines
3.0 KiB
93 lines
3.0 KiB
/* |
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* Raw Video Encoder |
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* Copyright (c) 2001 Fabrice Bellard |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/** |
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* @file |
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* Raw Video Encoder |
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*/ |
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#include "avcodec.h" |
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#include "raw.h" |
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#include "internal.h" |
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#include "libavutil/pixdesc.h" |
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#include "libavutil/intreadwrite.h" |
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#include "libavutil/imgutils.h" |
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#include "libavutil/internal.h" |
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static av_cold int raw_encode_init(AVCodecContext *avctx) |
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{ |
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt); |
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#if FF_API_CODED_FRAME |
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FF_DISABLE_DEPRECATION_WARNINGS |
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avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I; |
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FF_ENABLE_DEPRECATION_WARNINGS |
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#endif |
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avctx->bits_per_coded_sample = av_get_bits_per_pixel(desc); |
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if(!avctx->codec_tag) |
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avctx->codec_tag = avcodec_pix_fmt_to_codec_tag(avctx->pix_fmt); |
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return 0; |
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} |
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static int raw_encode(AVCodecContext *avctx, AVPacket *pkt, |
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const AVFrame *frame, int *got_packet) |
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{ |
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int ret = av_image_get_buffer_size(frame->format, |
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frame->width, frame->height, 1); |
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if (ret < 0) |
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return ret; |
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if ((ret = ff_alloc_packet2(avctx, pkt, ret, ret)) < 0) |
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return ret; |
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if ((ret = av_image_copy_to_buffer(pkt->data, pkt->size, |
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(const uint8_t **)frame->data, frame->linesize, |
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frame->format, |
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frame->width, frame->height, 1)) < 0) |
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return ret; |
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if(avctx->codec_tag == AV_RL32("yuv2") && ret > 0 && |
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frame->format == AV_PIX_FMT_YUYV422) { |
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int x; |
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for(x = 1; x < frame->height*frame->width*2; x += 2) |
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pkt->data[x] ^= 0x80; |
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} else if (avctx->codec_tag == AV_RL32("b64a") && ret > 0 && |
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frame->format == AV_PIX_FMT_RGBA64BE) { |
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uint64_t v; |
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int x; |
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for (x = 0; x < frame->height * frame->width; x++) { |
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v = AV_RB64(&pkt->data[8 * x]); |
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AV_WB64(&pkt->data[8 * x], v << 48 | v >> 16); |
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} |
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} |
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pkt->flags |= AV_PKT_FLAG_KEY; |
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*got_packet = 1; |
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return 0; |
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} |
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AVCodec ff_rawvideo_encoder = { |
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.name = "rawvideo", |
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.long_name = NULL_IF_CONFIG_SMALL("raw video"), |
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.type = AVMEDIA_TYPE_VIDEO, |
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.id = AV_CODEC_ID_RAWVIDEO, |
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.init = raw_encode_init, |
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.encode2 = raw_encode, |
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};
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