mirror of
https://gitee.com/openharmony/third_party_ffmpeg
synced 2024-11-24 03:39:45 +00:00
123 lines
3.7 KiB
C
123 lines
3.7 KiB
C
/*
|
|
* 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",
|
|
.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 = CODEC_CAP_DR1,
|
|
};
|
|
#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 = CODEC_CAP_DR1,
|
|
};
|
|
#endif
|
|
#if CONFIG_AVRP_DECODER
|
|
AVCodec ff_avrp_decoder = {
|
|
.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 = decode_init,
|
|
.decode = decode_frame,
|
|
.capabilities = CODEC_CAP_DR1,
|
|
};
|
|
#endif
|