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035180901d
The r10k and avrp decoders would previously store 12 bit precision for the blue channel, which is inconsistent and probably not a desirable behaviour. Now the 2 unused extra bits are set to 0. This is possibly not ideal either as RGBA1010102 format has the same layout but stores alpha in these bits, thus explicitly setting them to 1 might be preferable. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
124 lines
3.8 KiB
C
124 lines
3.8 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 "internal.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 = av_frame_alloc();
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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, AVPacket *pkt,
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const AVFrame *pic, int *got_packet)
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{
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int i, j, ret;
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int aligned_width = FFALIGN(avctx->width,
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avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64);
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int pad = (aligned_width - avctx->width) * 4;
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uint8_t *src_line;
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uint8_t *dst;
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if ((ret = ff_alloc_packet2(avctx, pkt, 4 * aligned_width * avctx->height)) < 0)
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return ret;
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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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dst = pkt->data;
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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++ >> 6;
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if (avctx->codec_id == AV_CODEC_ID_R210)
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pixel = (r << 20) | (g << 10) | b;
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else
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pixel = (r << 22) | (g << 12) | (b << 2);
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if (avctx->codec_id == AV_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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memset(dst, 0, pad);
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dst += pad;
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src_line += pic->linesize[0];
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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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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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.long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"),
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_R210,
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.init = encode_init,
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.encode2 = encode_frame,
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.close = encode_close,
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.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE },
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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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.long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"),
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_R10K,
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.init = encode_init,
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.encode2 = encode_frame,
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.close = encode_close,
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.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE },
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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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.long_name = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"),
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_AVRP,
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.init = encode_init,
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.encode2 = encode_frame,
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.close = encode_close,
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.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE },
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};
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#endif
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