GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/v210x.c Lines: 0 65 0.0 %
Date: 2020-08-14 10:39:37 Branches: 0 20 0.0 %

Line Branch Exec Source
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/*
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 * Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at>
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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 "libavutil/bswap.h"
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#include "libavutil/internal.h"
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#include "libavutil/mem.h"
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static av_cold int decode_init(AVCodecContext *avctx)
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{
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    if (avctx->width & 1) {
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        av_log(avctx, AV_LOG_ERROR, "v210x needs even width\n");
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        return AVERROR(EINVAL);
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    }
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    avctx->pix_fmt             = AV_PIX_FMT_YUV422P16;
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    avctx->bits_per_raw_sample = 10;
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    return 0;
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}
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static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
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                        AVPacket *avpkt)
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{
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    const uint32_t *src = (const uint32_t *)avpkt->data;
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    AVFrame *pic        = data;
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    int width           = avctx->width;
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    int y               = 0;
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    uint16_t *ydst, *udst, *vdst, *yend;
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    int ret;
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    if (avpkt->size < avctx->width * avctx->height * 8 / 3) {
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        av_log(avctx, AV_LOG_ERROR, "Packet too small\n");
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        return AVERROR_INVALIDDATA;
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    }
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    if (avpkt->size > avctx->width * avctx->height * 8 / 3) {
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        avpriv_request_sample(avctx, "(Probably) padded data");
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    }
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    if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
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        return ret;
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    ydst = (uint16_t *)pic->data[0];
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    udst = (uint16_t *)pic->data[1];
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    vdst = (uint16_t *)pic->data[2];
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    yend = ydst + width;
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    pic->pict_type = AV_PICTURE_TYPE_I;
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    pic->key_frame = 1;
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    for (;;) {
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        uint32_t v = av_be2ne32(*src++);
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        *udst++ = (v >> 16) & 0xFFC0;
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        *ydst++ = (v >> 6 ) & 0xFFC0;
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        *vdst++ = (v << 4 ) & 0xFFC0;
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        v       = av_be2ne32(*src++);
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        *ydst++ = (v >> 16) & 0xFFC0;
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        if (ydst >= yend) {
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            ydst += pic->linesize[0] / 2 - width;
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            udst += pic->linesize[1] / 2 - width / 2;
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            vdst += pic->linesize[2] / 2 - width / 2;
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            yend = ydst + width;
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            if (++y >= avctx->height)
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                break;
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        }
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        *udst++ = (v >> 6 ) & 0xFFC0;
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        *ydst++ = (v << 4 ) & 0xFFC0;
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        v = av_be2ne32(*src++);
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        *vdst++ = (v >> 16) & 0xFFC0;
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        *ydst++ = (v >> 6 ) & 0xFFC0;
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        if (ydst >= yend) {
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            ydst += pic->linesize[0] / 2 - width;
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            udst += pic->linesize[1] / 2 - width / 2;
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            vdst += pic->linesize[2] / 2 - width / 2;
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            yend  = ydst + width;
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            if (++y >= avctx->height)
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                break;
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        }
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        *udst++ = (v << 4 ) & 0xFFC0;
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        v = av_be2ne32(*src++);
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        *ydst++ = (v >> 16) & 0xFFC0;
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        *vdst++ = (v >> 6 ) & 0xFFC0;
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        *ydst++ = (v << 4 ) & 0xFFC0;
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        if (ydst >= yend) {
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            ydst += pic->linesize[0] / 2 - width;
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            udst += pic->linesize[1] / 2 - width / 2;
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            vdst += pic->linesize[2] / 2 - width / 2;
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            yend  = ydst + width;
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            if (++y >= avctx->height)
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                break;
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        }
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    }
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    *got_frame = 1;
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    return avpkt->size;
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}
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AVCodec ff_v210x_decoder = {
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    .name           = "v210x",
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    .long_name      = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"),
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    .type           = AVMEDIA_TYPE_VIDEO,
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    .id             = AV_CODEC_ID_V210X,
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    .init           = decode_init,
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    .decode         = decode_frame,
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    .capabilities   = AV_CODEC_CAP_DR1,
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};