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https://github.com/FFmpeg/FFmpeg.git
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2828f5b0d8
Fixes the following ubsan error: libavcodec/r210enc.c:69:28: runtime error: left shift of 522 by 22 places cannot be represented in type 'int' Fixes ticket #7982.
124 lines
4.1 KiB
C
124 lines
4.1 KiB
C
/*
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* R210 encoder
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*
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* Copyright (c) 2012 Paul B Mahol
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "avcodec.h"
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#include "internal.h"
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#include "bytestream.h"
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static av_cold int encode_init(AVCodecContext *avctx)
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{
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int aligned_width = FFALIGN(avctx->width,
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avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64);
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avctx->bits_per_coded_sample = 32;
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if (avctx->width > 0)
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avctx->bit_rate = ff_guess_coded_bitrate(avctx) * aligned_width / avctx->width;
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return 0;
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}
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static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
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const AVFrame *pic, int *got_packet)
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{
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int i, j, ret;
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int aligned_width = FFALIGN(avctx->width,
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avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64);
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int pad = (aligned_width - avctx->width) * 4;
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uint8_t *srcr_line, *srcg_line, *srcb_line;
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uint8_t *dst;
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if ((ret = ff_alloc_packet2(avctx, pkt, 4 * aligned_width * avctx->height, 0)) < 0)
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return ret;
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srcg_line = pic->data[0];
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srcb_line = pic->data[1];
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srcr_line = pic->data[2];
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dst = pkt->data;
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for (i = 0; i < avctx->height; i++) {
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uint16_t *srcr = (uint16_t *)srcr_line;
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uint16_t *srcg = (uint16_t *)srcg_line;
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uint16_t *srcb = (uint16_t *)srcb_line;
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for (j = 0; j < avctx->width; j++) {
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uint32_t pixel;
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unsigned r = *srcr++;
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unsigned g = *srcg++;
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unsigned b = *srcb++;
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if (avctx->codec_id == AV_CODEC_ID_R210)
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pixel = (r << 20) | (g << 10) | b;
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else
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pixel = (r << 22) | (g << 12) | (b << 2);
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if (avctx->codec_id == AV_CODEC_ID_AVRP)
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bytestream_put_le32(&dst, pixel);
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else
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bytestream_put_be32(&dst, pixel);
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}
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memset(dst, 0, pad);
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dst += pad;
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srcr_line += pic->linesize[2];
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srcg_line += pic->linesize[0];
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srcb_line += pic->linesize[1];
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}
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pkt->flags |= AV_PKT_FLAG_KEY;
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*got_packet = 1;
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return 0;
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}
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#if CONFIG_R210_ENCODER
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AVCodec ff_r210_encoder = {
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.name = "r210",
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.long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"),
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_R210,
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.init = encode_init,
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.encode2 = encode_frame,
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.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_GBRP10, AV_PIX_FMT_NONE },
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.capabilities = AV_CODEC_CAP_INTRA_ONLY,
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};
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#endif
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#if CONFIG_R10K_ENCODER
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AVCodec ff_r10k_encoder = {
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.name = "r10k",
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.long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"),
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_R10K,
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.init = encode_init,
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.encode2 = encode_frame,
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.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_GBRP10, AV_PIX_FMT_NONE },
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.capabilities = AV_CODEC_CAP_INTRA_ONLY,
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};
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#endif
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#if CONFIG_AVRP_ENCODER
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AVCodec ff_avrp_encoder = {
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.name = "avrp",
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.long_name = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"),
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_AVRP,
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.init = encode_init,
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.encode2 = encode_frame,
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.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_GBRP10, AV_PIX_FMT_NONE },
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.capabilities = AV_CODEC_CAP_INTRA_ONLY,
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};
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#endif
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