GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/tests/options.c Lines: 54 58 93.1 %
Date: 2020-10-23 17:01:47 Branches: 32 36 88.9 %

Line Branch Exec Source
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/*
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 * Copyright (c) 2001 Fabrice Bellard
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 * Copyright (c) 2002-2004 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 "libavcodec/options.c"
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static int dummy_init(AVCodecContext *ctx)
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{
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    //TODO: this code should set every possible pointer that could be set by codec and is not an option;
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    ctx->extradata_size = 8;
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    ctx->extradata = av_malloc(ctx->extradata_size);
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    return 0;
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}
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static int dummy_close(AVCodecContext *ctx)
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{
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    av_freep(&ctx->extradata);
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    ctx->extradata_size = 0;
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    return 0;
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}
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static int dummy_encode(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
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{
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    return AVERROR(ENOSYS);
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}
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typedef struct Dummy12Context {
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    AVClass  *av_class;
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    int      num;
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    char*    str;
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} Dummy12Context;
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typedef struct Dummy3Context {
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    void     *fake_av_class;
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    int      num;
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    char*    str;
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} Dummy3Context;
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#define OFFSET(x) offsetof(Dummy12Context, x)
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#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
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static const AVOption dummy_options[] = {
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    { "str", "set str", OFFSET(str), AV_OPT_TYPE_STRING, { .str = "i'm src default value" }, 0, 0, VE},
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    { "num", "set num", OFFSET(num), AV_OPT_TYPE_INT,    { .i64 = 1500100900 },    0, INT_MAX, VE},
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    { NULL },
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};
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static const AVClass dummy_v1_class = {
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    .class_name = "dummy_v1_class",
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    .item_name  = av_default_item_name,
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    .option     = dummy_options,
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    .version    = LIBAVUTIL_VERSION_INT,
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};
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static const AVClass dummy_v2_class = {
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    .class_name = "dummy_v2_class",
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    .item_name  = av_default_item_name,
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    .option     = dummy_options,
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    .version    = LIBAVUTIL_VERSION_INT,
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};
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/* codec with options */
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static AVCodec dummy_v1_encoder = {
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    .name             = "dummy_v1_codec",
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    .type             = AVMEDIA_TYPE_VIDEO,
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    .id               = AV_CODEC_ID_NONE - 1,
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    .encode2          = dummy_encode,
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    .init             = dummy_init,
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    .close            = dummy_close,
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    .priv_class       = &dummy_v1_class,
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    .priv_data_size   = sizeof(Dummy12Context),
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};
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/* codec with options, different class */
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static AVCodec dummy_v2_encoder = {
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    .name             = "dummy_v2_codec",
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    .type             = AVMEDIA_TYPE_VIDEO,
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    .id               = AV_CODEC_ID_NONE - 2,
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    .encode2          = dummy_encode,
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    .init             = dummy_init,
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    .close            = dummy_close,
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    .priv_class       = &dummy_v2_class,
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    .priv_data_size   = sizeof(Dummy12Context),
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};
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/* codec with priv data, but no class */
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static AVCodec dummy_v3_encoder = {
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    .name             = "dummy_v3_codec",
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    .type             = AVMEDIA_TYPE_VIDEO,
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    .id               = AV_CODEC_ID_NONE - 3,
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    .encode2          = dummy_encode,
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    .init             = dummy_init,
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    .close            = dummy_close,
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    .priv_data_size   = sizeof(Dummy3Context),
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};
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/* codec without priv data */
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static AVCodec dummy_v4_encoder = {
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    .name             = "dummy_v4_codec",
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    .type             = AVMEDIA_TYPE_VIDEO,
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    .id               = AV_CODEC_ID_NONE - 4,
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    .encode2          = dummy_encode,
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    .init             = dummy_init,
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    .close            = dummy_close,
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};
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static void test_copy_print_codec(const AVCodecContext *ctx)
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{
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    printf("%-14s: %dx%d prv: %s",
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           ctx->codec ? ctx->codec->name : "NULL",
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           ctx->width, ctx->height,
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           ctx->priv_data ? "set" : "null");
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    if (ctx->codec && ctx->codec->priv_class && ctx->codec->priv_data_size) {
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        int64_t i64;
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        char *str = NULL;
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        av_opt_get_int(ctx->priv_data, "num", 0, &i64);
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        av_opt_get(ctx->priv_data, "str", 0, (uint8_t**)&str);
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        printf(" opts: %"PRId64" %s", i64, str);
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        av_free(str);
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    }
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    printf("\n");
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}
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static void test_copy(const AVCodec *c1, const AVCodec *c2)
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{
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    AVCodecContext *ctx1, *ctx2;
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    printf("%s -> %s\nclosed:\n", c1 ? c1->name : "NULL", c2 ? c2->name : "NULL");
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    ctx1 = avcodec_alloc_context3(c1);
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    ctx2 = avcodec_alloc_context3(c2);
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    ctx1->width = ctx1->height = 128;
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    ctx1->time_base = (AVRational){12,34};
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    if (ctx2->codec && ctx2->codec->priv_class && ctx2->codec->priv_data_size) {
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        av_opt_set(ctx2->priv_data, "num", "667", 0);
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        av_opt_set(ctx2->priv_data, "str", "i'm dest value before copy", 0);
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    }
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    avcodec_copy_context(ctx2, ctx1);
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    test_copy_print_codec(ctx1);
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    test_copy_print_codec(ctx2);
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    if (ctx1->codec) {
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        int ret;
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        printf("opened:\n");
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        ret = avcodec_open2(ctx1, ctx1->codec, NULL);
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        if (ret < 0) {
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            fprintf(stderr, "avcodec_open2 failed\n");
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            exit(1);
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        }
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        if (ctx2->codec && ctx2->codec->priv_class && ctx2->codec->priv_data_size) {
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            av_opt_set(ctx2->priv_data, "num", "667", 0);
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            av_opt_set(ctx2->priv_data, "str", "i'm dest value before copy", 0);
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        }
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        avcodec_copy_context(ctx2, ctx1);
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        test_copy_print_codec(ctx1);
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        test_copy_print_codec(ctx2);
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    }
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    avcodec_free_context(&ctx1);
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    avcodec_free_context(&ctx2);
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}
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1
int main(void)
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{
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    AVCodec *dummy_codec[] = {
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        &dummy_v1_encoder,
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        &dummy_v2_encoder,
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        &dummy_v3_encoder,
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        &dummy_v4_encoder,
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        NULL,
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    };
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    int i, j;
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    for (i = 0; dummy_codec[i]; i++)
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        avcodec_register(dummy_codec[i]);
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    printf("testing avcodec_copy_context()\n");
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    for (i = 0; i < FF_ARRAY_ELEMS(dummy_codec); i++)
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        for (j = 0; j < FF_ARRAY_ELEMS(dummy_codec); j++)
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            test_copy(dummy_codec[i], dummy_codec[j]);
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    return 0;
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}