diff options
Diffstat (limited to 'libavcodec/r210enc.c')
| -rw-r--r-- | libavcodec/r210enc.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/libavcodec/r210enc.c b/libavcodec/r210enc.c new file mode 100644 index 0000000..02412f3 --- /dev/null +++ b/libavcodec/r210enc.c @@ -0,0 +1,123 @@ +/* + * R210 encoder + * + * Copyright (c) 2012 Paul B Mahol + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "avcodec.h" +#include "internal.h" +#include "bytestream.h" + +static av_cold int encode_init(AVCodecContext *avctx) +{ + int aligned_width = FFALIGN(avctx->width, + avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64); + + avctx->bits_per_coded_sample = 32; + if (avctx->width > 0) + avctx->bit_rate = ff_guess_coded_bitrate(avctx) * aligned_width / avctx->width; + + return 0; +} + +static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, + const AVFrame *pic, int *got_packet) +{ + int i, j, ret; + int aligned_width = FFALIGN(avctx->width, + avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64); + int pad = (aligned_width - avctx->width) * 4; + uint8_t *srcr_line, *srcg_line, *srcb_line; + uint8_t *dst; + + if ((ret = ff_alloc_packet2(avctx, pkt, 4 * aligned_width * avctx->height, 0)) < 0) + return ret; + + srcg_line = pic->data[0]; + srcb_line = pic->data[1]; + srcr_line = pic->data[2]; + dst = pkt->data; + + for (i = 0; i < avctx->height; i++) { + uint16_t *srcr = (uint16_t *)srcr_line; + uint16_t *srcg = (uint16_t *)srcg_line; + uint16_t *srcb = (uint16_t *)srcb_line; + for (j = 0; j < avctx->width; j++) { + uint32_t pixel; + uint16_t r = *srcr++; + uint16_t g = *srcg++; + uint16_t b = *srcb++; + if (avctx->codec_id == AV_CODEC_ID_R210) + pixel = (r << 20) | (g << 10) | b; + else + pixel = (r << 22) | (g << 12) | (b << 2); + if (avctx->codec_id == AV_CODEC_ID_AVRP) + bytestream_put_le32(&dst, pixel); + else + bytestream_put_be32(&dst, pixel); + } + memset(dst, 0, pad); + dst += pad; + srcr_line += pic->linesize[2]; + srcg_line += pic->linesize[0]; + srcb_line += pic->linesize[1]; + } + + pkt->flags |= AV_PKT_FLAG_KEY; + *got_packet = 1; + return 0; +} + + +#if CONFIG_R210_ENCODER +AVCodec ff_r210_encoder = { + .name = "r210", + .long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"), + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_R210, + .init = encode_init, + .encode2 = encode_frame, + .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_GBRP10, AV_PIX_FMT_NONE }, + .capabilities = AV_CODEC_CAP_INTRA_ONLY, +}; +#endif +#if CONFIG_R10K_ENCODER +AVCodec ff_r10k_encoder = { + .name = "r10k", + .long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"), + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_R10K, + .init = encode_init, + .encode2 = encode_frame, + .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_GBRP10, AV_PIX_FMT_NONE }, + .capabilities = AV_CODEC_CAP_INTRA_ONLY, +}; +#endif +#if CONFIG_AVRP_ENCODER +AVCodec ff_avrp_encoder = { + .name = "avrp", + .long_name = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"), + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_AVRP, + .init = encode_init, + .encode2 = encode_frame, + .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_GBRP10, AV_PIX_FMT_NONE }, + .capabilities = AV_CODEC_CAP_INTRA_ONLY, +}; +#endif |
