mirror of https://git.ffmpeg.org/ffmpeg.git
121 lines
3.7 KiB
C
121 lines
3.7 KiB
C
/*
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* R210 encoder
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*
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* Copyright (c) 2012 Paul B Mahol
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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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#include "avcodec.h"
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#include "bytestream.h"
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static av_cold int encode_init(AVCodecContext *avctx)
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{
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avctx->coded_frame = avcodec_alloc_frame();
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if (!avctx->coded_frame)
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return AVERROR(ENOMEM);
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return 0;
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}
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static int encode_frame(AVCodecContext *avctx, uint8_t *buf,
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int buf_size, void *data)
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{
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AVFrame *pic = data;
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int i, j;
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int aligned_width = FFALIGN(avctx->width, 64);
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uint8_t *src_line;
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uint8_t *dst = buf;
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if (buf_size < 4 * aligned_width * avctx->height) {
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av_log(avctx, AV_LOG_ERROR, "output buffer too small\n");
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return AVERROR(ENOMEM);
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}
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avctx->coded_frame->reference = 0;
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avctx->coded_frame->key_frame = 1;
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avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
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src_line = pic->data[0];
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for (i = 0; i < avctx->height; i++) {
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uint16_t *src = (uint16_t *)src_line;
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for (j = 0; j < avctx->width; j++) {
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uint32_t pixel;
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uint16_t r = *src++ >> 6;
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uint16_t g = *src++ >> 6;
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uint16_t b = *src++ >> 4;
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if (avctx->codec_id == CODEC_ID_R210)
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pixel = (r << 20) | (g << 10) | b >> 2;
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else
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pixel = (r << 22) | (g << 12) | b;
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if (avctx->codec_id == CODEC_ID_AVRP)
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bytestream_put_le32(&dst, pixel);
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else
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bytestream_put_be32(&dst, pixel);
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}
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dst += aligned_width - avctx->width;
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src_line += pic->linesize[0];
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}
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return 4 * aligned_width * avctx->height;
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}
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static av_cold int encode_close(AVCodecContext *avctx)
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{
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av_freep(&avctx->coded_frame);
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return 0;
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}
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#if CONFIG_R210_ENCODER
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AVCodec ff_r210_encoder = {
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.name = "r210",
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.type = AVMEDIA_TYPE_VIDEO,
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.id = CODEC_ID_R210,
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.init = encode_init,
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.encode = encode_frame,
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.close = encode_close,
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.pix_fmts = (const enum PixelFormat[]) { PIX_FMT_RGB48, PIX_FMT_NONE },
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.long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"),
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};
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#endif
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#if CONFIG_R10K_ENCODER
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AVCodec ff_r10k_encoder = {
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.name = "r10k",
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.type = AVMEDIA_TYPE_VIDEO,
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.id = CODEC_ID_R10K,
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.init = encode_init,
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.encode = encode_frame,
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.close = encode_close,
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.pix_fmts = (const enum PixelFormat[]) { PIX_FMT_RGB48, PIX_FMT_NONE },
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.long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"),
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};
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#endif
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#if CONFIG_AVRP_ENCODER
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AVCodec ff_avrp_encoder = {
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.name = "avrp",
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.type = AVMEDIA_TYPE_VIDEO,
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.id = CODEC_ID_AVRP,
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.init = encode_init,
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.encode = encode_frame,
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.close = encode_close,
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.pix_fmts = (const enum PixelFormat[]) { PIX_FMT_RGB48, PIX_FMT_NONE },
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.long_name = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"),
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};
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#endif
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