yading@10: /*
yading@10:  * R210 encoder
yading@10:  *
yading@10:  * Copyright (c) 2012 Paul B Mahol
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: #include "avcodec.h"
yading@10: #include "internal.h"
yading@10: #include "bytestream.h"
yading@10: 
yading@10: static av_cold int encode_init(AVCodecContext *avctx)
yading@10: {
yading@10:     avctx->coded_frame = avcodec_alloc_frame();
yading@10: 
yading@10:     if (!avctx->coded_frame)
yading@10:         return AVERROR(ENOMEM);
yading@10: 
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
yading@10:                         const AVFrame *pic, int *got_packet)
yading@10: {
yading@10:     int i, j, ret;
yading@10:     int aligned_width = FFALIGN(avctx->width,
yading@10:                                 avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64);
yading@10:     int pad = (aligned_width - avctx->width) * 4;
yading@10:     uint8_t *src_line;
yading@10:     uint8_t *dst;
yading@10: 
yading@10:     if ((ret = ff_alloc_packet2(avctx, pkt, 4 * aligned_width * avctx->height)) < 0)
yading@10:         return ret;
yading@10: 
yading@10:     avctx->coded_frame->key_frame = 1;
yading@10:     avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
yading@10:     src_line = pic->data[0];
yading@10:     dst = pkt->data;
yading@10: 
yading@10:     for (i = 0; i < avctx->height; i++) {
yading@10:         uint16_t *src = (uint16_t *)src_line;
yading@10:         for (j = 0; j < avctx->width; j++) {
yading@10:             uint32_t pixel;
yading@10:             uint16_t r = *src++ >> 6;
yading@10:             uint16_t g = *src++ >> 6;
yading@10:             uint16_t b = *src++ >> 4;
yading@10:             if (avctx->codec_id == AV_CODEC_ID_R210)
yading@10:                 pixel = (r << 20) | (g << 10) | b >> 2;
yading@10:             else
yading@10:                 pixel = (r << 22) | (g << 12) | b;
yading@10:             if (avctx->codec_id == AV_CODEC_ID_AVRP)
yading@10:                 bytestream_put_le32(&dst, pixel);
yading@10:             else
yading@10:                 bytestream_put_be32(&dst, pixel);
yading@10:         }
yading@10:         memset(dst, 0, pad);
yading@10:         dst += pad;
yading@10:         src_line += pic->linesize[0];
yading@10:     }
yading@10: 
yading@10:     pkt->flags |= AV_PKT_FLAG_KEY;
yading@10:     *got_packet = 1;
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static av_cold int encode_close(AVCodecContext *avctx)
yading@10: {
yading@10:     av_freep(&avctx->coded_frame);
yading@10: 
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: #if CONFIG_R210_ENCODER
yading@10: AVCodec ff_r210_encoder = {
yading@10:     .name           = "r210",
yading@10:     .type           = AVMEDIA_TYPE_VIDEO,
yading@10:     .id             = AV_CODEC_ID_R210,
yading@10:     .init           = encode_init,
yading@10:     .encode2        = encode_frame,
yading@10:     .close          = encode_close,
yading@10:     .pix_fmts       = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE },
yading@10:     .long_name      = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"),
yading@10: };
yading@10: #endif
yading@10: #if CONFIG_R10K_ENCODER
yading@10: AVCodec ff_r10k_encoder = {
yading@10:     .name           = "r10k",
yading@10:     .type           = AVMEDIA_TYPE_VIDEO,
yading@10:     .id             = AV_CODEC_ID_R10K,
yading@10:     .init           = encode_init,
yading@10:     .encode2        = encode_frame,
yading@10:     .close          = encode_close,
yading@10:     .pix_fmts       = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE },
yading@10:     .long_name      = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"),
yading@10: };
yading@10: #endif
yading@10: #if CONFIG_AVRP_ENCODER
yading@10: AVCodec ff_avrp_encoder = {
yading@10:     .name           = "avrp",
yading@10:     .type           = AVMEDIA_TYPE_VIDEO,
yading@10:     .id             = AV_CODEC_ID_AVRP,
yading@10:     .init           = encode_init,
yading@10:     .encode2        = encode_frame,
yading@10:     .close          = encode_close,
yading@10:     .pix_fmts       = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE },
yading@10:     .long_name      = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"),
yading@10: };
yading@10: #endif