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Diffstat (limited to 'ffmpeg/libavcodec/r210dec.c')
| -rw-r--r-- | ffmpeg/libavcodec/r210dec.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/ffmpeg/libavcodec/r210dec.c b/ffmpeg/libavcodec/r210dec.c new file mode 100644 index 0000000..198914c --- /dev/null +++ b/ffmpeg/libavcodec/r210dec.c @@ -0,0 +1,122 @@ +/* + * R210 decoder + * + * Copyright (c) 2009 Reimar Doeffinger <Reimar.Doeffinger@gmx.de> + * + * 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 "libavutil/bswap.h" +#include "libavutil/common.h" + +static av_cold int decode_init(AVCodecContext *avctx) +{ + avctx->pix_fmt = AV_PIX_FMT_RGB48; + avctx->bits_per_raw_sample = 10; + + return 0; +} + +static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, + AVPacket *avpkt) +{ + int h, w, ret; + AVFrame *pic = data; + const uint32_t *src = (const uint32_t *)avpkt->data; + int aligned_width = FFALIGN(avctx->width, + avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64); + uint8_t *dst_line; + + if (avpkt->size < 4 * aligned_width * avctx->height) { + av_log(avctx, AV_LOG_ERROR, "packet too small\n"); + return AVERROR_INVALIDDATA; + } + + if ((ret = ff_get_buffer(avctx, pic, 0)) < 0) + return ret; + + pic->pict_type = AV_PICTURE_TYPE_I; + pic->key_frame = 1; + dst_line = pic->data[0]; + + for (h = 0; h < avctx->height; h++) { + uint16_t *dst = (uint16_t *)dst_line; + for (w = 0; w < avctx->width; w++) { + uint32_t pixel; + uint16_t r, g, b; + if (avctx->codec_id==AV_CODEC_ID_AVRP) { + pixel = av_le2ne32(*src++); + } else { + pixel = av_be2ne32(*src++); + } + if (avctx->codec_id==AV_CODEC_ID_R210) { + b = pixel << 6; + g = (pixel >> 4) & 0xffc0; + r = (pixel >> 14) & 0xffc0; + } else { + b = pixel << 4; + g = (pixel >> 6) & 0xffc0; + r = (pixel >> 16) & 0xffc0; + } + *dst++ = r | (r >> 10); + *dst++ = g | (g >> 10); + *dst++ = b | (b >> 10); + } + src += aligned_width - avctx->width; + dst_line += pic->linesize[0]; + } + + *got_frame = 1; + + return avpkt->size; +} + +#if CONFIG_R210_DECODER +AVCodec ff_r210_decoder = { + .name = "r210", + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_R210, + .init = decode_init, + .decode = decode_frame, + .capabilities = CODEC_CAP_DR1, + .long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"), +}; +#endif +#if CONFIG_R10K_DECODER +AVCodec ff_r10k_decoder = { + .name = "r10k", + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_R10K, + .init = decode_init, + .decode = decode_frame, + .capabilities = CODEC_CAP_DR1, + .long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"), +}; +#endif +#if CONFIG_AVRP_DECODER +AVCodec ff_avrp_decoder = { + .name = "avrp", + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_AVRP, + .init = decode_init, + .decode = decode_frame, + .capabilities = CODEC_CAP_DR1, + .long_name = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"), +}; +#endif |