Function log_callback

src/modules/ffmpeg/ffmpeg.cpp:58–106

}

void log_callback(void* ptr, int level, const char* fmt, va_list vl)
{
    static thread_local bool print_prefix_tss = true;

    char     line[1024];
    AVClass* avc = ptr != nullptr ? *static_cast<AVClass**>(ptr) : nullptr;
    if (level > AV_LOG_DEBUG)
        return;
    line[0] = 0;

#undef fprintf
    if (print_prefix_tss && (avc != nullptr)) {
        if (avc->parent_log_context_offset != 0) {
            AVClass** parent =
                *reinterpret_cast<AVClass***>(static_cast<uint8_t*>(ptr) + avc->parent_log_context_offset);
            if ((parent != nullptr) && (*parent != nullptr))
                std::snprintf(line, sizeof(line), "[%s @ %p] ", (*parent)->item_name(parent), parent);
        }
        std::snprintf(line + strlen(line), sizeof(line) - strlen(line), "[%s @ %p] ", avc->item_name(ptr), ptr);
    }

    std::vsnprintf(line + strlen(line), sizeof(line) - strlen(line), fmt, vl);

    print_prefix_tss = (strlen(line) != 0u) && line[strlen(line) - 1] == '\n';

    sanitize(reinterpret_cast<uint8_t*>(line));

    if (strstr(line, "Assuming an incorrectly") != nullptr) {
        return;
    }

    try {
        if (level == AV_LOG_VERBOSE)
            CASPAR_LOG(trace) << L"[ffmpeg] " << line;
        else if (level == AV_LOG_DEBUG)
            CASPAR_LOG(trace) << L"[ffmpeg] " << line;
        else if (level == AV_LOG_INFO)
            CASPAR_LOG(info) << L"[ffmpeg] " << line;
        else if (level == AV_LOG_WARNING)
            CASPAR_LOG(warning) << L"[ffmpeg] " << line;
        else if (level == AV_LOG_ERROR)
            CASPAR_LOG(error) << L"[ffmpeg] " << line;
        else if (level == AV_LOG_FATAL)
            CASPAR_LOG(fatal) << L"[ffmpeg] " << line;
        else
            CASPAR_LOG(trace) << L"[ffmpeg] " << line;
    } catch (...) {
    }
}

void log_for_thread(void* ptr, int level, const char* fmt, va_list vl) { log_callback(ptr, level, fmt, vl); }