mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
107 lines
3.3 KiB
107 lines
3.3 KiB
/* |
|
* R210 decoder |
|
* |
|
* Copyright (c) 2009 Reimar Doeffinger <Reimar.Doeffinger@gmx.de> |
|
* |
|
* This file is part of Libav. |
|
* |
|
* Libav 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. |
|
* |
|
* Libav 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 Libav; 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, 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 = av_be2ne32(*src++); |
|
uint16_t r, g, b; |
|
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", |
|
.long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"), |
|
.type = AVMEDIA_TYPE_VIDEO, |
|
.id = AV_CODEC_ID_R210, |
|
.init = decode_init, |
|
.decode = decode_frame, |
|
.capabilities = AV_CODEC_CAP_DR1, |
|
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, |
|
}; |
|
#endif |
|
#if CONFIG_R10K_DECODER |
|
AVCodec ff_r10k_decoder = { |
|
.name = "r10k", |
|
.long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"), |
|
.type = AVMEDIA_TYPE_VIDEO, |
|
.id = AV_CODEC_ID_R10K, |
|
.init = decode_init, |
|
.decode = decode_frame, |
|
.capabilities = AV_CODEC_CAP_DR1, |
|
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, |
|
}; |
|
#endif
|
|
|