[deb_ffmpeg.git] / ffmpeg / libavcodec / r210dec.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
Commit	Line	Data
2ba45a60 DM	1	/*
	2	* R210 decoder
	3	*
	4	* Copyright (c) 2009 Reimar Doeffinger <Reimar.Doeffinger@gmx.de>
	5	*
	6	* This file is part of FFmpeg.
	7	*
	8	* FFmpeg is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU Lesser General Public
	10	* License as published by the Free Software Foundation; either
	11	* version 2.1 of the License, or (at your option) any later version.
	12	*
	13	* FFmpeg is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	16	* Lesser General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU Lesser General Public
	19	* License along with FFmpeg; if not, write to the Free Software
	20	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	21	*/
	22
	23	#include "avcodec.h"
	24	#include "internal.h"
	25	#include "libavutil/bswap.h"
	26	#include "libavutil/common.h"
	27
	28	static av_cold int decode_init(AVCodecContext *avctx)
	29	{
	30	avctx->pix_fmt = AV_PIX_FMT_RGB48;
	31	avctx->bits_per_raw_sample = 10;
	32
	33	return 0;
	34	}
	35
	36	static int decode_frame(AVCodecContext avctx, void data, int *got_frame,
	37	AVPacket *avpkt)
	38	{
	39	int h, w, ret;
	40	AVFrame *pic = data;
	41	const uint32_t src = (const uint32_t )avpkt->data;
	42	int aligned_width = FFALIGN(avctx->width,
	43	avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64);
	44	uint8_t *dst_line;
	45
	46	if (avpkt->size < 4 * aligned_width * avctx->height) {
	47	av_log(avctx, AV_LOG_ERROR, "packet too small\n");
	48	return AVERROR_INVALIDDATA;
	49	}
	50
	51	if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
	52	return ret;
	53
	54	pic->pict_type = AV_PICTURE_TYPE_I;
	55	pic->key_frame = 1;
	56	dst_line = pic->data[0];
	57
	58	for (h = 0; h < avctx->height; h++) {
	59	uint16_t dst = (uint16_t )dst_line;
	60	for (w = 0; w < avctx->width; w++) {
	61	uint32_t pixel;
	62	uint16_t r, g, b;
	63	if (avctx->codec_id==AV_CODEC_ID_AVRP) {
	64	pixel = av_le2ne32(*src++);
65	} else {
66	pixel = av_be2ne32(*src++);
67	}
68	if (avctx->codec_id==AV_CODEC_ID_R210) {
69	b = pixel << 6;
70	g = (pixel >> 4) & 0xffc0;
71	r = (pixel >> 14) & 0xffc0;
72	} else {
73	b = pixel << 4;
74	g = (pixel >> 6) & 0xffc0;
75	r = (pixel >> 16) & 0xffc0;
76	}
77	*dst++ = r \| (r >> 10);
78	*dst++ = g \| (g >> 10);
79	*dst++ = b \| (b >> 10);
80	}
81	src += aligned_width - avctx->width;
82	dst_line += pic->linesize[0];
83	}
84
85	*got_frame = 1;
86
87	return avpkt->size;
88	}
89
90	#if CONFIG_R210_DECODER
91	AVCodec ff_r210_decoder = {
92	.name = "r210",
93	.long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"),
94	.type = AVMEDIA_TYPE_VIDEO,
95	.id = AV_CODEC_ID_R210,
96	.init = decode_init,
97	.decode = decode_frame,
98	.capabilities = CODEC_CAP_DR1,
99	};
100	#endif
101	#if CONFIG_R10K_DECODER
102	AVCodec ff_r10k_decoder = {
103	.name = "r10k",
104	.long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"),
105	.type = AVMEDIA_TYPE_VIDEO,
106	.id = AV_CODEC_ID_R10K,
107	.init = decode_init,
108	.decode = decode_frame,
109	.capabilities = CODEC_CAP_DR1,
110	};
111	#endif
112	#if CONFIG_AVRP_DECODER
113	AVCodec ff_avrp_decoder = {
114	.name = "avrp",
115	.long_name = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"),
116	.type = AVMEDIA_TYPE_VIDEO,
117	.id = AV_CODEC_ID_AVRP,
118	.init = decode_init,
119	.decode = decode_frame,
120	.capabilities = CODEC_CAP_DR1,
121	};
122	#endif