GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/v210_template.c Lines: 39 41 95.1 %
Date: 2020-10-23 17:01:47 Branches: 7 10 70.0 %

Line Branch Exec Source
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/*
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 * Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at>
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 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
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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 "bytestream.h"
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#include "internal.h"
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#define CLIP(v, depth) av_clip(v, 1<<(depth-8), ((1<<depth)-(1<<(depth-8))-1))
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#define WRITE_PIXELS(a, b, c, depth)                      \
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    do {                                                  \
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        val  =  CLIP(*a++, depth)  << (10-depth);         \
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        val |=  (CLIP(*b++, depth) << (20-depth)) |       \
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                (CLIP(*c++, depth) << (30-depth));        \
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        AV_WL32(dst, val);                                \
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        dst += 4;                                         \
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    } while (0)
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static void RENAME(v210_enc)(AVCodecContext *avctx,
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        uint8_t *dst, const AVFrame *pic)
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{
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    V210EncContext *s = avctx->priv_data;
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    int aligned_width = ((avctx->width + 47) / 48) * 48;
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    int stride = aligned_width * 8 / 3;
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    int line_padding = stride - ((avctx->width * 8 + 11) / 12) * 4;
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    int h, w;
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    const TYPE *y = (const TYPE *)pic->data[0];
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    const TYPE *u = (const TYPE *)pic->data[1];
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    const TYPE *v = (const TYPE *)pic->data[2];
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    const int sample_size = 6 * s->RENAME(sample_factor);
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    const int sample_w    = avctx->width / sample_size;
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    for (h = 0; h < avctx->height; h++) {
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        uint32_t val;
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        w = sample_w * sample_size;
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        s->RENAME(pack_line)(y, u, v, dst, w);
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        y += w;
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        u += w >> 1;
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        v += w >> 1;
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        dst += sample_w * 16 * s->RENAME(sample_factor);
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        for (; w < avctx->width - 5; w += 6) {
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            WRITE_PIXELS(u, y, v, DEPTH);
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            WRITE_PIXELS(y, u, y, DEPTH);
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            WRITE_PIXELS(v, y, u, DEPTH);
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            WRITE_PIXELS(y, v, y, DEPTH);
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        }
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        if (w < avctx->width - 1) {
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            WRITE_PIXELS(u, y, v, DEPTH);
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            val = CLIP(*y++, DEPTH) << (10-DEPTH);
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            if (w == avctx->width - 2) {
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                AV_WL32(dst, val);
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                dst += 4;
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            }
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        }
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        if (w < avctx->width - 3) {
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            val |= (CLIP(*u++, DEPTH) << (20-DEPTH)) | (CLIP(*y++, DEPTH) << (30-DEPTH));
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            AV_WL32(dst, val);
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            dst += 4;
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            val = CLIP(*v++, DEPTH) << (10-DEPTH) | (CLIP(*y++, DEPTH) << (20-DEPTH));
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            AV_WL32(dst, val);
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            dst += 4;
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        }
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        memset(dst, 0, line_padding);
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        dst += line_padding;
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        y += pic->linesize[0] / BYTES_PER_PIXEL - avctx->width;
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        u += pic->linesize[1] / BYTES_PER_PIXEL - avctx->width / 2;
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        v += pic->linesize[2] / BYTES_PER_PIXEL - avctx->width / 2;
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    }
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}