Function check_script

libavfilter/tests/drawvg.c:231–294

Compile and run a script.

// Compile and run a script.
static void check_script(int is_file, const char* source) {
    int ret;

    AVDictionary *metadata = NULL;

    struct VGSEvalState state;
    struct VGSParser parser;
    struct VGSProgram program;

    struct _cairo cairo_ctx = { 0, 0 };

    if (is_file) {
        uint8_t *s = NULL;

        printf("\n--- %s: %s\n", __func__, av_basename(source));

        ret = ff_load_textfile(NULL, source, &s, NULL);
        if (ret != 0) {
            printf("Failed to read %s: %d\n", source, ret);
            return;
        }

        source = s;
    } else {
        printf("\n--- %s: %s\n", __func__, source);
    }

    ret = av_dict_parse_string(&metadata, "m.a=1:m.b=2", "=", ":", 0);
    av_assert0(ret == 0);

    vgs_parser_init(&parser, source);

    ret = vgs_parse(NULL, &parser, &program, 0);

    int init_ret = vgs_eval_state_init(&state, &program, NULL, NULL);
    av_assert0(init_ret == 0);

    for (int i = 0; i < VAR_COUNT; i++)
        state.vars[i] = 1 << i;

    vgs_parser_free(&parser);

    if (ret != 0) {
        printf("%s: vgs_parse = %d\n", __func__, ret);
        goto exit;
    }

    state.metadata = metadata;
    state.cairo_ctx = &cairo_ctx;

    ret = vgs_eval(&state, &program, 0);
    vgs_eval_state_free(&state);

    if (ret != 0)
        printf("%s: vgs_eval = %d\n", __func__, ret);

exit:
    av_dict_free(&metadata);